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@@ -0,0 +1,1135 @@
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+diff --git a/arch/arm/boot/dts/overlays/Makefile b/arch/arm/boot/dts/overlays/Makefile
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+index ef0a0cc3da99..8c3431aca11d 100644
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+--- a/arch/arm/boot/dts/overlays/Makefile
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++++ b/arch/arm/boot/dts/overlays/Makefile
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+@@ -31,6 +31,11 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
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+ audremap.dtbo \
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+ balena-fin.dtbo \
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+ cma.dtbo \
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++ devterm-bt.dtbo \
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++ devterm-misc.dtbo \
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++ devterm-panel.dtbo \
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++ devterm-pmu.dtbo \
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++ devterm-wifi.dtbo \
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+ dht11.dtbo \
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+ dionaudio-loco.dtbo \
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+ dionaudio-loco-v2.dtbo \
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+diff --git a/arch/arm/boot/dts/overlays/devterm-bt-overlay.dts b/arch/arm/boot/dts/overlays/devterm-bt-overlay.dts
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+new file mode 100755
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+index 000000000000..4b634fdd3bda
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+--- /dev/null
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++++ b/arch/arm/boot/dts/overlays/devterm-bt-overlay.dts
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+@@ -0,0 +1,40 @@
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++/dts-v1/;
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++/plugin/;
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++
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++/{
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++ compatible = "brcm,bcm2835";
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++
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++ fragment@0 {
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++ target = <&uart0>;
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++ __overlay__ {
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++ pinctrl-names = "default";
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++ pinctrl-0 = <&uart0_pins &bt_pins>;
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++ status = "okay";
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++ };
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++ };
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++
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++ fragment@1 {
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++ target = <&gpio>;
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++ __overlay__ {
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++ uart0_pins: uart0_pins {
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++ brcm,pins = <14 15 16 17>;
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++ brcm,function = <4 4 7 7>;
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++ brcm,pull = <0 2 0 2>;
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++ };
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++
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++ bt_pins: bt_pins {
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++ brcm,pins = <5 6 7>;
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++ brcm,function = <1 0 1>;
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++ brcm,pull = <0 2 0>;
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++ };
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++ };
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++ };
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++
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++ fragment@2 {
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++ target-path = "/aliases";
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++ __overlay__ {
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++ serial1 = "/soc/serial@7e201000";
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++ serial0 = "/soc/serial@7e215040";
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++ };
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++ };
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++};
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+diff --git a/arch/arm/boot/dts/overlays/devterm-misc-overlay.dts b/arch/arm/boot/dts/overlays/devterm-misc-overlay.dts
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+new file mode 100644
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+index 000000000000..c080c835abfb
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+--- /dev/null
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++++ b/arch/arm/boot/dts/overlays/devterm-misc-overlay.dts
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+@@ -0,0 +1,87 @@
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++/dts-v1/;
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++/plugin/;
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++
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++/{
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++ compatible = "brcm,bcm2835";
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++
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++ fragment@0 {
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++ target = <&i2c1>;
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++ __overlay__ {
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++ #address-cells = <1>;
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++ #size-cells = <0>;
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++ pinctrl-names = "default";
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++ pinctrl-0 = <&i2c1_pins>;
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++ status = "okay";
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++
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++ adc101c: adc@54 {
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++ reg = <0x54>;
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++ compatible = "ti,adc101c";
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++ status = "okay";
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++ };
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++ };
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++ };
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++
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++ fragment@1 {
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++ target = <&spi4>;
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++ __overlay__ {
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++ pinctrl-names = "default";
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++ pinctrl-0 = <&spi4_pins &spi4_cs_pins>;
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++ cs-gpios = <&gpio 4 1>;
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++ status = "okay";
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++
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++ spidev4_0: spidev@0 {
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++ compatible = "spidev";
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++ reg = <0>; /* CE0 */
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++ #address-cells = <1>;
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++ #size-cells = <0>;
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++ spi-max-frequency = <125000000>;
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++ status = "okay";
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++ };
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++ };
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++ };
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++
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++ fragment@2 {
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++ target = <&uart1>;
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++ __overlay__ {
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++ pinctrl-names = "default";
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++ pinctrl-0 = <&uart1_pins>;
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++ status = "okay";
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++ };
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++ };
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++
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++ fragment@3 {
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++ target = <&gpio>;
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++ __overlay__ {
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++
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++ i2c1_pins: i2c1 {
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++ brcm,pins = <44 45>;
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++ brcm,function = <6>;
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++ };
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++
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++ spi4_pins: spi4_pins {
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++ brcm,pins = <6 7>;
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++ brcm,function = <7>;
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++ };
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++
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++ spi4_cs_pins: spi0_cs_pins {
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++ brcm,pins = <4>;
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++ brcm,function = <1>;
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++ };
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++
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++ uart1_pins: uart1_pins {
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++ brcm,pins = <14 15>;
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++ brcm,function = <2>;
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++ brcm,pull = <0 2>;
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++ };
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++
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++ };
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++ };
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++
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++ fragment@4 {
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++ target-path = "/chosen";
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++ __overlay__ {
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++ bootargs = "8250.nr_uarts=1";
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++ };
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++ };
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++
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++};
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+diff --git a/arch/arm/boot/dts/overlays/devterm-panel-overlay.dts b/arch/arm/boot/dts/overlays/devterm-panel-overlay.dts
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+new file mode 100644
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+index 000000000000..7d9ff963f309
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+--- /dev/null
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++++ b/arch/arm/boot/dts/overlays/devterm-panel-overlay.dts
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+@@ -0,0 +1,46 @@
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++/dts-v1/;
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++/plugin/;
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++
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++/ {
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++ compatible = "brcm,bcm2835";
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++
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++ fragment@0 {
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++ target=<&dsi1>;
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++ __overlay__ {
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++ #address-cells = <1>;
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++ #size-cells = <0>;
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++ status = "okay";
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++
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++ port {
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++ dsi_out_port: endpoint {
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++ remote-endpoint = <&panel_dsi_port>;
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++ };
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++ };
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++
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++ panel_cwd686: panel@0 {
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++ compatible = "cw,cwd686";
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++ reg = <0>;
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++ reset-gpio = <&gpio 8 1>;
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++ backlight = <&ocp8178_backlight>;
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++
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++ port {
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++ panel_dsi_port: endpoint {
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++ remote-endpoint = <&dsi_out_port>;
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++ };
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++ };
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++ };
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++ };
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++ };
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++
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++ fragment@1 {
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++ target-path = "/";
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++ __overlay__ {
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++ ocp8178_backlight: backlight@0 {
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++ compatible = "ocp8178-backlight";
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++ backlight-control-gpios = <&gpio 9 0>;
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++ default-brightness = <5>;
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++ };
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++ };
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++ };
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++
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++};
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+diff --git a/arch/arm/boot/dts/overlays/devterm-pmu-overlay.dts b/arch/arm/boot/dts/overlays/devterm-pmu-overlay.dts
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+new file mode 100644
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+index 000000000000..3ffc51b8fc2d
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+--- /dev/null
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++++ b/arch/arm/boot/dts/overlays/devterm-pmu-overlay.dts
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+@@ -0,0 +1,104 @@
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++/dts-v1/;
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++/plugin/;
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++
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++/ {
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++ compatible = "brcm,bcm2835";
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++
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++ fragment@0 {
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++ target = <&i2c0if>;
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++ __overlay__ {
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++ #address-cells = <1>;
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++ #size-cells = <0>;
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++ pinctrl-0 = <&i2c0_pins>;
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++ pinctrl-names = "default";
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++ status = "okay";
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++
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++ axp22x: pmic@34 {
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++ interrupt-controller;
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++ #interrupt-cells = <1>;
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++ compatible = "x-powers,axp223";
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++ reg = <0x34>; /* i2c address */
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++ interrupt-parent = <&gpio>;
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++ interrupts = <2 8>; /* IRQ_TYPE_EDGE_FALLING */
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++ irq-gpios = <&gpio 2 0>;
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++
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++ regulators {
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++
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++ x-powers,dcdc-freq = <3000>;
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++
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++ reg_aldo1: aldo1 {
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++ regulator-always-on;
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++ regulator-min-microvolt = <3300000>;
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++ regulator-max-microvolt = <3300000>;
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++ regulator-name = "audio-vdd";
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++ };
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++
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++ reg_aldo2: aldo2 {
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++ regulator-always-on;
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++ regulator-min-microvolt = <3300000>;
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++ regulator-max-microvolt = <3300000>;
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++ regulator-name = "display-vcc";
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++ };
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++
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++ reg_dldo2: dldo2 {
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++ regulator-always-on;
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++ regulator-min-microvolt = <3300000>;
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++ regulator-max-microvolt = <3300000>;
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++ regulator-name = "dldo2";
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++ };
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++
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++ reg_dldo3: dldo3 {
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++ regulator-always-on;
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++ regulator-min-microvolt = <3300000>;
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++ regulator-max-microvolt = <3300000>;
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++ regulator-name = "dldo3";
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++ };
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++
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++ reg_dldo4: dldo4 {
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++ regulator-always-on;
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++ regulator-min-microvolt = <3300000>;
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++ regulator-max-microvolt = <3300000>;
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++ regulator-name = "dldo4";
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++ };
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++
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++ };
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++
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++ battery_power_supply: battery-power-supply {
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++ compatible = "x-powers,axp221-battery-power-supply";
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++ monitored-battery = <&battery>;
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++ };
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++
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++ ac_power_supply: ac_power_supply {
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++ compatible = "x-powers,axp221-ac-power-supply";
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++ };
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++
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++ };
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++ };
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++ };
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++
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++ fragment@1 {
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++ target = <&i2c0if>;
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++ __overlay__ {
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++ compatible = "brcm,bcm2708-i2c";
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++ };
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++ };
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++
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++ fragment@2 {
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++ target-path = "/aliases";
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++ __overlay__ {
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++ i2c0 = "/soc/i2c@7e205000";
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++ };
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++ };
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++
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++ fragment@3 {
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++ target-path = "/";
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++ __overlay__ {
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++ battery: battery@0 {
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++ compatible = "simple-battery";
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++ constant_charge_current_max_microamp = <2100000>;
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++ voltage-min-design-microvolt = <3300000>;
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++ };
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++ };
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++ };
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++
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++};
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+diff --git a/arch/arm/boot/dts/overlays/devterm-wifi-overlay.dts b/arch/arm/boot/dts/overlays/devterm-wifi-overlay.dts
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+new file mode 100644
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+index 000000000000..d5da786dc445
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+--- /dev/null
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++++ b/arch/arm/boot/dts/overlays/devterm-wifi-overlay.dts
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+@@ -0,0 +1,41 @@
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++/dts-v1/;
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++/plugin/;
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++
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++/* Enable SDIO from MMC interface via various GPIO groups */
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++
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++/{
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++ compatible = "brcm,bcm2835";
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++
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++ fragment@0 {
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++ target = <&mmc>;
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++ sdio_ovl: __overlay__ {
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++ pinctrl-0 = <&sdio_ovl_pins>;
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++ pinctrl-names = "default";
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++ non-removable;
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++ bus-width = <4>;
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++ status = "okay";
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++ };
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++ };
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++
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++ fragment@1 {
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++ target = <&gpio>;
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++ __overlay__ {
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++ sdio_ovl_pins: sdio_ovl_pins {
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++ brcm,pins = <22 23 24 25 26 27>;
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++ brcm,function = <7>; /* ALT3 = SD1 */
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++ brcm,pull = <0 2 2 2 2 2>;
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++ };
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++ };
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++ };
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++
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++ fragment@2 {
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++ target-path = "/";
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++ __overlay__ {
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++ wifi_pwrseq: wifi-pwrseq {
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++ compatible = "mmc-pwrseq-simple";
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++ reset-gpios = <&gpio 3 0>;
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++ };
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++ };
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++ };
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++
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++};
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+diff --git a/arch/arm/configs/bcm2711_defconfig b/arch/arm/configs/bcm2711_defconfig
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+index b0e58d871a60..fc6d75f028e6 100644
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+--- a/arch/arm/configs/bcm2711_defconfig
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++++ b/arch/arm/configs/bcm2711_defconfig
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+@@ -680,7 +680,7 @@ CONFIG_I2C_MUX_GPMUX=m
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+ CONFIG_I2C_MUX_PCA954x=m
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+ CONFIG_I2C_MUX_PINCTRL=m
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+ CONFIG_I2C_BCM2708=m
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+-CONFIG_I2C_BCM2835=m
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++CONFIG_I2C_BCM2835=y
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+ CONFIG_I2C_BRCMSTB=m
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+ CONFIG_I2C_GPIO=m
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+ CONFIG_I2C_ROBOTFUZZ_OSIF=m
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+@@ -1524,3 +1524,15 @@ CONFIG_IRQSOFF_TRACER=y
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+ CONFIG_SCHED_TRACER=y
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+ CONFIG_BLK_DEV_IO_TRACE=y
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+ # CONFIG_UPROBE_EVENTS is not set
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++
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++CONFIG_AXP20X_ADC=m
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++CONFIG_AXP20X_POWER=m
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++CONFIG_BATTERY_AXP20X=m
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++CONFIG_CHARGER_AXP20X=m
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++CONFIG_INPUT_AXP20X_PEK=y
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++CONFIG_MFD_AXP20X=y
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++CONFIG_MFD_AXP20X_I2C=y
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++CONFIG_REGULATOR_AXP20X=y
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++CONFIG_BACKLIGHT_OCP8178=y
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++CONFIG_DRM_PANEL_CWD686=m
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++CONFIG_TI_ADC081C=m
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+diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
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+index b9dbedf8f15e..9a18418d8287 100644
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+--- a/drivers/gpu/drm/panel/Kconfig
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++++ b/drivers/gpu/drm/panel/Kconfig
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+@@ -499,4 +499,17 @@ config DRM_PANEL_XINPENG_XPP055C272
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+ Say Y here if you want to enable support for the Xinpeng
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+ XPP055C272 controller for 720x1280 LCD panels with MIPI/RGB/SPI
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+ system interfaces.
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++
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++config DRM_PANEL_CWD686
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++ tristate "CWD686 panel"
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++ depends on OF
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++ depends on DRM_MIPI_DSI
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++ depends on BACKLIGHT_CLASS_DEVICE
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++ help
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++ Say Y here if you want to enable support for CWD686 panel.
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++ The panel has a 480x1280 resolution and uses 24 bit RGB per pixel.
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++
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++ To compile this driver as a module, choose M here: the module
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++ will be called panel-cwd686.
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++
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|
|
+ endmenu
|
|
|
+diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
|
|
|
+index 2ba560bca61d..865cca7f69c6 100644
|
|
|
+--- a/drivers/gpu/drm/panel/Makefile
|
|
|
++++ b/drivers/gpu/drm/panel/Makefile
|
|
|
+@@ -53,3 +53,4 @@ obj-$(CONFIG_DRM_PANEL_TPO_TPG110) += panel-tpo-tpg110.o
|
|
|
+ obj-$(CONFIG_DRM_PANEL_TRULY_NT35597_WQXGA) += panel-truly-nt35597.o
|
|
|
+ obj-$(CONFIG_DRM_PANEL_VISIONOX_RM69299) += panel-visionox-rm69299.o
|
|
|
+ obj-$(CONFIG_DRM_PANEL_XINPENG_XPP055C272) += panel-xinpeng-xpp055c272.o
|
|
|
++obj-$(CONFIG_DRM_PANEL_CWD686) += panel-cwd686.o
|
|
|
+diff --git a/drivers/gpu/drm/panel/panel-cwd686.c b/drivers/gpu/drm/panel/panel-cwd686.c
|
|
|
+new file mode 100644
|
|
|
+index 000000000000..09dd9424fa4e
|
|
|
+--- /dev/null
|
|
|
++++ b/drivers/gpu/drm/panel/panel-cwd686.c
|
|
|
+@@ -0,0 +1,284 @@
|
|
|
++// SPDX-License-Identifier: GPL-2.0+
|
|
|
++
|
|
|
++#include <drm/drm_modes.h>
|
|
|
++#include <drm/drm_mipi_dsi.h>
|
|
|
++#include <drm/drm_panel.h>
|
|
|
++#include <linux/backlight.h>
|
|
|
++#include <linux/gpio/consumer.h>
|
|
|
++#include <linux/regulator/consumer.h>
|
|
|
++#include <linux/delay.h>
|
|
|
++#include <linux/of_device.h>
|
|
|
++#include <linux/module.h>
|
|
|
++
|
|
|
++struct cwd686 {
|
|
|
++ struct device *dev;
|
|
|
++ struct drm_panel panel;
|
|
|
++ struct regulator *supply;
|
|
|
++ struct gpio_desc *reset_gpio;
|
|
|
++ struct backlight_device *backlight;
|
|
|
++ bool prepared;
|
|
|
++ bool enabled;
|
|
|
++};
|
|
|
++
|
|
|
++static const struct drm_display_mode default_mode = {
|
|
|
++ .clock = 54465,
|
|
|
++ .hdisplay = 480,
|
|
|
++ .hsync_start = 480 + 150,
|
|
|
++ .hsync_end = 480 + 150 + 24,
|
|
|
++ .htotal = 480 + 150 + 24 + 40,
|
|
|
++ .vdisplay = 1280,
|
|
|
++ .vsync_start = 1280 + 12,
|
|
|
++ .vsync_end = 1280 + 12+ 6,
|
|
|
++ .vtotal = 1280 + 12 + 6 + 10,
|
|
|
++};
|
|
|
++
|
|
|
++static inline struct cwd686 *panel_to_cwd686(struct drm_panel *panel)
|
|
|
++{
|
|
|
++ return container_of(panel, struct cwd686, panel);
|
|
|
++}
|
|
|
++
|
|
|
++#define dcs_write_seq(seq...) \
|
|
|
++({ \
|
|
|
++ static const u8 d[] = { seq }; \
|
|
|
++ mipi_dsi_dcs_write_buffer(dsi, d, ARRAY_SIZE(d)); \
|
|
|
++})
|
|
|
++
|
|
|
++static void cwd686_init_sequence(struct cwd686 *ctx)
|
|
|
++{
|
|
|
++ struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
|
|
|
++
|
|
|
++ dcs_write_seq(0xF0,0x5A,0x59);
|
|
|
++ dcs_write_seq(0xF1,0xA5,0xA6);
|
|
|
++ dcs_write_seq(0xB0,0x54,0x32,0x23,0x45,0x44,0x44,0x44,0x44,0x9F,0x00,0x01,0x9F,0x00,0x01);
|
|
|
++ dcs_write_seq(0xB1,0x32,0x84,0x02,0x83,0x29,0x06,0x06,0x72,0x06,0x06);
|
|
|
++ dcs_write_seq(0xB2,0x73);
|
|
|
++ dcs_write_seq(0xB3,0x0B,0x09,0x13,0x11,0x0F,0x0D,0x00,0x00,0x00,0x03,0x00,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x05,0x07);
|
|
|
++ dcs_write_seq(0xB4,0x0A,0x08,0x12,0x10,0x0E,0x0C,0x00,0x00,0x00,0x03,0x00,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x04,0x06);
|
|
|
++ dcs_write_seq(0xB6,0x13,0x13);
|
|
|
++ dcs_write_seq(0xB8,0xB4,0x43,0x02,0xCC);
|
|
|
++ dcs_write_seq(0xB9,0xA5,0x20,0xFF,0xC8);
|
|
|
++ dcs_write_seq(0xBA,0x88,0x23);
|
|
|
++ dcs_write_seq(0xBD,0x43,0x0E,0x0E,0x50,0x50,0x29,0x10,0x03,0x44,0x03);
|
|
|
++ dcs_write_seq(0xC1,0x00,0x0C,0x16,0x04,0x00,0x30,0x10,0x04);
|
|
|
++ dcs_write_seq(0xC2,0x21,0x81);
|
|
|
++ dcs_write_seq(0xC3,0x02,0x30);
|
|
|
++ dcs_write_seq(0xC7,0x25,0x6A);
|
|
|
++ dcs_write_seq(0xC8,0x7C,0x68,0x59,0x4E,0x4B,0x3C,0x41,0x2B,0x44,0x43,0x43,0x60,0x4E,0x55,0x47,0x44,0x38,0x27,0x06,0x7C,0x68,0x59,0x4E,0x4B,0x3C,0x41,0x2B,0x44,0x43,0x43,0x60,0x4E,0x55,0x47,0x44,0x38,0x27,0x06);//GAMMA2.2
|
|
|
++ //dcs_write_seq(0xC8,0x7C,0x66,0x56,0x4A,0x46,0x37,0x3B,0x24,0x3D,0x3C,0x3A,0x56,0x42,0x48,0x39,0x38,0x2C,0x17,0x06,0x7C,0x66,0x56,0x4A,0x46,0x37,0x3B,0x24,0x3D,0x3C,0x3A,0x56,0x42,0x48,0x39,0x38,0x2C,0x17,0x06);//GAMMA2.5
|
|
|
++ //dcs_write_seq(0xC8,0x7C,0x69,0x5B,0x50,0x4E,0x40,0x46,0x31,0x4A,0x49,0x49,0x67,0x56,0x5E,0x51,0x4E,0x41,0x2F,0x06,0x7C,0x69,0x5B,0x50,0x4E,0x40,0x46,0x31,0x4A,0x49,0x49,0x67,0x56,0x5E,0x51,0x4E,0x41,0x2F,0x06);//GAMMA2.0
|
|
|
++ //dcs_write_seq(0xC8,0x7C,0x6D,0x60,0x56,0x54,0x47,0x4c,0x37,0x50,0x4e,0x4e,0x6d,0x5c,0x66,0x59,0x56,0x4A,0x36,0x06,0x7C,0x6D,0x60,0x56,0x54,0x47,0x4c,0x37,0x50,0x4e,0x4e,0x6d,0x5c,0x66,0x59,0x56,0x4A,0x36,0x06);//GAMMA1.8
|
|
|
++ //dcs_write_seq(0xC8,0x7C,0x6e,0x62,0x59,0x58,0x4b,0x52,0x3d,0x57,0x56,0x56,0x75,0x66,0x71,0x66,0x64,0x55,0x44,0x06,0x7C,0x6e,0x62,0x59,0x58,0x4b,0x52,0x3d,0x57,0x56,0x56,0x75,0x66,0x71,0x66,0x64,0x55,0x44,0x06);//GAMMA1.6
|
|
|
++ dcs_write_seq(0xD4,0x00,0x00,0x00,0x32,0x04,0x51);
|
|
|
++ dcs_write_seq(0xF1,0x5A,0x59);
|
|
|
++ dcs_write_seq(0xF0,0xA5,0xA6);
|
|
|
++ dcs_write_seq(0x36,0x14);
|
|
|
++ dcs_write_seq(0x35,0x00);
|
|
|
++ dcs_write_seq(0x11);
|
|
|
++ msleep(120);
|
|
|
++ dcs_write_seq(0x29);
|
|
|
++ msleep(20);
|
|
|
++}
|
|
|
++
|
|
|
++static int cwd686_disable(struct drm_panel *panel)
|
|
|
++{
|
|
|
++ struct cwd686 *ctx = panel_to_cwd686(panel);
|
|
|
++ struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
|
|
|
++ int ret;
|
|
|
++
|
|
|
++ if (!ctx->enabled)
|
|
|
++ return 0;
|
|
|
++
|
|
|
++ backlight_disable(ctx->backlight);
|
|
|
++
|
|
|
++ ctx->enabled = false;
|
|
|
++
|
|
|
++ return 0;
|
|
|
++}
|
|
|
++
|
|
|
++static int cwd686_unprepare(struct drm_panel *panel)
|
|
|
++{
|
|
|
++ struct cwd686 *ctx = panel_to_cwd686(panel);
|
|
|
++ struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
|
|
|
++ int ret;
|
|
|
++
|
|
|
++#if 0
|
|
|
++ if (!ctx->prepared)
|
|
|
++ return 0;
|
|
|
++
|
|
|
++ ret = mipi_dsi_dcs_set_display_off(dsi);
|
|
|
++ if (ret) {
|
|
|
++ dev_err(ctx->dev, "failed to turn display off (%d)\n", ret);
|
|
|
++ return ret;
|
|
|
++ }
|
|
|
++ ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
|
|
|
++ if (ret) {
|
|
|
++ dev_err(ctx->dev, "failed to enter sleep mode (%d)\n", ret);
|
|
|
++ return ret;
|
|
|
++ }
|
|
|
++
|
|
|
++ gpiod_set_value_cansleep(ctx->reset_gpio, 0);
|
|
|
++
|
|
|
++ ctx->prepared = false;
|
|
|
++#endif
|
|
|
++
|
|
|
++ return 0;
|
|
|
++}
|
|
|
++
|
|
|
++static int cwd686_prepare(struct drm_panel *panel)
|
|
|
++{
|
|
|
++ struct cwd686 *ctx = panel_to_cwd686(panel);
|
|
|
++ struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
|
|
|
++ int ret;
|
|
|
++
|
|
|
++ if (ctx->prepared)
|
|
|
++ return 0;
|
|
|
++
|
|
|
++ gpiod_set_value_cansleep(ctx->reset_gpio, 0);
|
|
|
++ msleep(10);
|
|
|
++ gpiod_set_value_cansleep(ctx->reset_gpio, 1);
|
|
|
++ msleep(120);
|
|
|
++
|
|
|
++ /* Enabe tearing mode: send TE (tearing effect) at VBLANK */
|
|
|
++ ret = mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
|
|
|
++ if (ret) {
|
|
|
++ dev_err(ctx->dev, "failed to enable vblank TE (%d)\n", ret);
|
|
|
++ return ret;
|
|
|
++ }
|
|
|
++ /* Exit sleep mode and power on */
|
|
|
++
|
|
|
++ cwd686_init_sequence(ctx);
|
|
|
++
|
|
|
++ ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
|
|
|
++ if (ret) {
|
|
|
++ dev_err(ctx->dev, "failed to exit sleep mode (%d)\n", ret);
|
|
|
++ return ret;
|
|
|
++ }
|
|
|
++ msleep(120);
|
|
|
++
|
|
|
++ ret = mipi_dsi_dcs_set_display_on(dsi);
|
|
|
++ if (ret) {
|
|
|
++ dev_err(ctx->dev, "failed to turn display on (%d)\n", ret);
|
|
|
++ return ret;
|
|
|
++ }
|
|
|
++ msleep(20);
|
|
|
++
|
|
|
++ ctx->prepared = true;
|
|
|
++
|
|
|
++ return 0;
|
|
|
++}
|
|
|
++
|
|
|
++static int cwd686_enable(struct drm_panel *panel)
|
|
|
++{
|
|
|
++ struct cwd686 *ctx = panel_to_cwd686(panel);
|
|
|
++ struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
|
|
|
++ int ret;
|
|
|
++
|
|
|
++ if (ctx->enabled)
|
|
|
++ return 0;
|
|
|
++
|
|
|
++ backlight_enable(ctx->backlight);
|
|
|
++
|
|
|
++ ctx->enabled = true;
|
|
|
++
|
|
|
++ return 0;
|
|
|
++}
|
|
|
++
|
|
|
++static int cwd686_get_modes(struct drm_panel *panel, struct drm_connector *connector)
|
|
|
++{
|
|
|
++ struct drm_display_mode *mode;
|
|
|
++
|
|
|
++ mode = drm_mode_duplicate(connector->dev, &default_mode);
|
|
|
++ if (!mode) {
|
|
|
++ dev_err(panel->dev, "bad mode or failed to add mode\n");
|
|
|
++ return -EINVAL;
|
|
|
++ }
|
|
|
++ drm_mode_set_name(mode);
|
|
|
++ mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
|
|
|
++
|
|
|
++ connector->display_info.width_mm = mode->width_mm;
|
|
|
++ connector->display_info.height_mm = mode->height_mm;
|
|
|
++
|
|
|
++ drm_mode_probed_add(connector, mode);
|
|
|
++
|
|
|
++ return 1; /* Number of modes */
|
|
|
++}
|
|
|
++
|
|
|
++static const struct drm_panel_funcs cwd686_drm_funcs = {
|
|
|
++ .disable = cwd686_disable,
|
|
|
++ .unprepare = cwd686_unprepare,
|
|
|
++ .prepare = cwd686_prepare,
|
|
|
++ .enable = cwd686_enable,
|
|
|
++ .get_modes = cwd686_get_modes,
|
|
|
++};
|
|
|
++
|
|
|
++static int cwd686_probe(struct mipi_dsi_device *dsi)
|
|
|
++{
|
|
|
++ struct device *dev = &dsi->dev;
|
|
|
++ struct cwd686 *ctx;
|
|
|
++ int ret;
|
|
|
++
|
|
|
++ ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
|
|
|
++ if (!ctx)
|
|
|
++ return -ENOMEM;
|
|
|
++
|
|
|
++ mipi_dsi_set_drvdata(dsi, ctx);
|
|
|
++ ctx->dev = dev;
|
|
|
++
|
|
|
++ dsi->lanes = 4;
|
|
|
++ dsi->format = MIPI_DSI_FMT_RGB888;
|
|
|
++ dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE | MIPI_DSI_MODE_LPM;
|
|
|
++
|
|
|
++ ctx->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
|
|
|
++ if (IS_ERR(ctx->reset_gpio)) {
|
|
|
++ ret = PTR_ERR(ctx->reset_gpio);
|
|
|
++ if (ret != -EPROBE_DEFER)
|
|
|
++ dev_err(dev, "failed to request GPIO (%d)\n", ret);
|
|
|
++ return ret;
|
|
|
++ }
|
|
|
++
|
|
|
++ ctx->backlight = devm_of_find_backlight(dev);
|
|
|
++ if (IS_ERR(ctx->backlight))
|
|
|
++ return PTR_ERR(ctx->backlight);
|
|
|
++
|
|
|
++ drm_panel_init(&ctx->panel, dev, &cwd686_drm_funcs, DRM_MODE_CONNECTOR_DSI);
|
|
|
++
|
|
|
++ drm_panel_add(&ctx->panel);
|
|
|
++
|
|
|
++ ret = mipi_dsi_attach(dsi);
|
|
|
++ if (ret < 0) {
|
|
|
++ dev_err(dev, "mipi_dsi_attach() failed: %d\n", ret);
|
|
|
++ drm_panel_remove(&ctx->panel);
|
|
|
++ return ret;
|
|
|
++ }
|
|
|
++
|
|
|
++ return 0;
|
|
|
++}
|
|
|
++
|
|
|
++static int cwd686_remove(struct mipi_dsi_device *dsi)
|
|
|
++{
|
|
|
++ struct cwd686 *ctx = mipi_dsi_get_drvdata(dsi);
|
|
|
++
|
|
|
++ mipi_dsi_detach(dsi);
|
|
|
++ drm_panel_remove(&ctx->panel);
|
|
|
++
|
|
|
++ return 0;
|
|
|
++}
|
|
|
++
|
|
|
++static const struct of_device_id cwd686_of_match[] = {
|
|
|
++ { .compatible = "cw,cwd686" },
|
|
|
++ { }
|
|
|
++};
|
|
|
++MODULE_DEVICE_TABLE(of, cwd686_of_match);
|
|
|
++
|
|
|
++static struct mipi_dsi_driver cwd686_driver = {
|
|
|
++ .probe = cwd686_probe,
|
|
|
++ .remove = cwd686_remove,
|
|
|
++ .driver = {
|
|
|
++ .name = "panel-cwd686",
|
|
|
++ .of_match_table = cwd686_of_match,
|
|
|
++ },
|
|
|
++};
|
|
|
++module_mipi_dsi_driver(cwd686_driver);
|
|
|
++
|
|
|
++MODULE_DESCRIPTION("DRM Driver for cwd686 MIPI DSI panel");
|
|
|
++MODULE_LICENSE("GPL v2");
|
|
|
+diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c
|
|
|
+index aa59496e4376..45b09ce38bb3 100644
|
|
|
+--- a/drivers/mfd/axp20x.c
|
|
|
++++ b/drivers/mfd/axp20x.c
|
|
|
+@@ -976,6 +976,7 @@ int axp20x_device_probe(struct axp20x_dev *axp20x)
|
|
|
+ return ret;
|
|
|
+ }
|
|
|
+
|
|
|
++ pm_power_off = 0;
|
|
|
+ if (!pm_power_off) {
|
|
|
+ axp20x_pm_power_off = axp20x;
|
|
|
+ pm_power_off = axp20x_power_off;
|
|
|
+diff --git a/drivers/power/supply/axp20x_ac_power.c b/drivers/power/supply/axp20x_ac_power.c
|
|
|
+index ac360016b08a..c11024f3c6a1 100644
|
|
|
+--- a/drivers/power/supply/axp20x_ac_power.c
|
|
|
++++ b/drivers/power/supply/axp20x_ac_power.c
|
|
|
+@@ -53,6 +53,9 @@ static irqreturn_t axp20x_ac_power_irq(int irq, void *devid)
|
|
|
+ {
|
|
|
+ struct axp20x_ac_power *power = devid;
|
|
|
+
|
|
|
++ regmap_update_bits(power->regmap, AXP20X_VBUS_IPSOUT_MGMT, 0x03, 0x00);
|
|
|
++ regmap_update_bits(power->regmap, AXP20X_VBUS_IPSOUT_MGMT, 0x03, 0x03);
|
|
|
++
|
|
|
+ power_supply_changed(power->supply);
|
|
|
+
|
|
|
+ return IRQ_HANDLED;
|
|
|
+diff --git a/drivers/power/supply/axp20x_battery.c b/drivers/power/supply/axp20x_battery.c
|
|
|
+index e84b6e4da14a..b62c361e2589 100644
|
|
|
+--- a/drivers/power/supply/axp20x_battery.c
|
|
|
++++ b/drivers/power/supply/axp20x_battery.c
|
|
|
+@@ -326,6 +326,42 @@ static int axp20x_battery_get_prop(struct power_supply *psy,
|
|
|
+ val->intval *= 1000;
|
|
|
+ break;
|
|
|
+
|
|
|
++ case POWER_SUPPLY_PROP_ENERGY_FULL:
|
|
|
++ case POWER_SUPPLY_PROP_ENERGY_NOW:
|
|
|
++ /* When no battery is present, return 0 */
|
|
|
++ ret = regmap_read(axp20x_batt->regmap, AXP20X_PWR_OP_MODE,
|
|
|
++ ®);
|
|
|
++ if (ret)
|
|
|
++ return ret;
|
|
|
++
|
|
|
++ if (!(reg & AXP20X_PWR_OP_BATT_PRESENT)) {
|
|
|
++ val->intval = 0;
|
|
|
++ return 0;
|
|
|
++ }
|
|
|
++
|
|
|
++ if(psp == POWER_SUPPLY_PROP_ENERGY_FULL) {
|
|
|
++ val->intval = 8000000;
|
|
|
++ return 0;
|
|
|
++ }
|
|
|
++
|
|
|
++ ret = regmap_read(axp20x_batt->regmap, AXP20X_FG_RES, ®);
|
|
|
++ if (ret)
|
|
|
++ return ret;
|
|
|
++
|
|
|
++ if (axp20x_batt->data->has_fg_valid && !(reg & AXP22X_FG_VALID))
|
|
|
++ return -EINVAL;
|
|
|
++
|
|
|
++ val1 = reg & AXP209_FG_PERCENT;
|
|
|
++ if (val1 > 90)
|
|
|
++ val1= 80;
|
|
|
++ else if (val1 < 10)
|
|
|
++ val1 = 0;
|
|
|
++ else
|
|
|
++ val1 -= 10;
|
|
|
++
|
|
|
++ val->intval = val1 * 100000;
|
|
|
++ break;
|
|
|
++
|
|
|
+ default:
|
|
|
+ return -EINVAL;
|
|
|
+ }
|
|
|
+@@ -486,6 +522,8 @@ static enum power_supply_property axp20x_battery_props[] = {
|
|
|
+ POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
|
|
|
+ POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
|
|
|
+ POWER_SUPPLY_PROP_CAPACITY,
|
|
|
++ POWER_SUPPLY_PROP_ENERGY_FULL,
|
|
|
++ POWER_SUPPLY_PROP_ENERGY_NOW,
|
|
|
+ };
|
|
|
+
|
|
|
+ static int axp20x_battery_prop_writeable(struct power_supply *psy,
|
|
|
+@@ -630,6 +668,12 @@ static int axp20x_power_probe(struct platform_device *pdev)
|
|
|
+ axp20x_get_constant_charge_current(axp20x_batt,
|
|
|
+ &axp20x_batt->max_ccc);
|
|
|
+
|
|
|
++ regmap_update_bits(axp20x_batt->regmap, AXP20X_VBUS_IPSOUT_MGMT, 0x03, 0x03);
|
|
|
++ regmap_update_bits(axp20x_batt->regmap, AXP20X_OFF_CTRL, 0x08, 0x08);
|
|
|
++ regmap_update_bits(axp20x_batt->regmap, AXP20X_CHRG_CTRL2, 0x30, 0x20);
|
|
|
++ regmap_update_bits(axp20x_batt->regmap, AXP20X_PEK_KEY, 0x0f, 0x0b);
|
|
|
++ regmap_update_bits(axp20x_batt->regmap, AXP20X_GPIO0_CTRL, 0x07, 0x00);
|
|
|
++
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
|
|
|
+index 092ccbfd5243..571fd4afb35b 100644
|
|
|
+--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
|
|
|
++++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
|
|
|
+@@ -11,9 +11,9 @@
|
|
|
+ #include "bcm2835.h"
|
|
|
+ #include <soc/bcm2835/raspberrypi-firmware.h>
|
|
|
+
|
|
|
+-static bool enable_hdmi, enable_hdmi0, enable_hdmi1;
|
|
|
+-static bool enable_headphones;
|
|
|
+-static bool enable_compat_alsa = true;
|
|
|
++static bool enable_hdmi = true, enable_hdmi0, enable_hdmi1;
|
|
|
++static bool enable_headphones = true;
|
|
|
++static bool enable_compat_alsa;
|
|
|
+
|
|
|
+ module_param(enable_hdmi, bool, 0444);
|
|
|
+ MODULE_PARM_DESC(enable_hdmi, "Enables HDMI virtual audio device");
|
|
|
+diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
|
|
|
+index ed22a119c992..81decd5e3f40 100644
|
|
|
+--- a/drivers/video/backlight/Kconfig
|
|
|
++++ b/drivers/video/backlight/Kconfig
|
|
|
+@@ -463,6 +463,12 @@ config BACKLIGHT_LED
|
|
|
+ If you have a LCD backlight adjustable by LED class driver, say Y
|
|
|
+ to enable this driver.
|
|
|
+
|
|
|
++config BACKLIGHT_OCP8178
|
|
|
++ tristate "OCP8178 Backlight Driver"
|
|
|
++ depends on GPIOLIB
|
|
|
++ help
|
|
|
++ If you have an OCP8178, say Y to enable the backlight driver.
|
|
|
++
|
|
|
+ endif # BACKLIGHT_CLASS_DEVICE
|
|
|
+
|
|
|
+ endmenu
|
|
|
+diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile
|
|
|
+index 836f0d0d1ca0..bf5b9f5c0141 100644
|
|
|
+--- a/drivers/video/backlight/Makefile
|
|
|
++++ b/drivers/video/backlight/Makefile
|
|
|
+@@ -58,3 +58,4 @@ obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o
|
|
|
+ obj-$(CONFIG_BACKLIGHT_ARCXCNN) += arcxcnn_bl.o
|
|
|
+ obj-$(CONFIG_BACKLIGHT_RAVE_SP) += rave-sp-backlight.o
|
|
|
+ obj-$(CONFIG_BACKLIGHT_LED) += led_bl.o
|
|
|
++obj-$(CONFIG_BACKLIGHT_OCP8178) += ocp8178_bl.o
|
|
|
+diff --git a/drivers/video/backlight/ocp8178_bl.c b/drivers/video/backlight/ocp8178_bl.c
|
|
|
+new file mode 100644
|
|
|
+index 000000000000..db8db1771644
|
|
|
+--- /dev/null
|
|
|
++++ b/drivers/video/backlight/ocp8178_bl.c
|
|
|
+@@ -0,0 +1,277 @@
|
|
|
++/*
|
|
|
++ * ocp8178_bl.c - ocp8178 backlight driver
|
|
|
++ *
|
|
|
++ * This program is free software; you can redistribute it and/or modify
|
|
|
++ * it under the terms of the GNU General Public License version 2 as
|
|
|
++ * published by the Free Software Foundation.
|
|
|
++ */
|
|
|
++
|
|
|
++#include <linux/backlight.h>
|
|
|
++#include <linux/err.h>
|
|
|
++#include <linux/fb.h>
|
|
|
++#include <linux/gpio.h> /* Only for legacy support */
|
|
|
++#include <linux/gpio/consumer.h>
|
|
|
++#include <linux/init.h>
|
|
|
++#include <linux/kernel.h>
|
|
|
++#include <linux/module.h>
|
|
|
++#include <linux/of.h>
|
|
|
++#include <linux/of_gpio.h>
|
|
|
++#include <linux/platform_data/gpio_backlight.h>
|
|
|
++#include <linux/platform_device.h>
|
|
|
++#include <linux/slab.h>
|
|
|
++#include <linux/delay.h>
|
|
|
++#include <linux/timer.h>
|
|
|
++#include <linux/poll.h>
|
|
|
++#include <linux/proc_fs.h>
|
|
|
++#include <linux/seq_file.h>
|
|
|
++#include <linux/sched.h>
|
|
|
++#include <linux/interrupt.h>
|
|
|
++#include <linux/irq.h>
|
|
|
++#include <linux/io.h>
|
|
|
++#include <linux/clk.h>
|
|
|
++
|
|
|
++struct ocp8178_backlight {
|
|
|
++ struct device *dev;
|
|
|
++ struct device *fbdev;
|
|
|
++
|
|
|
++ struct gpio_desc *gpiod;
|
|
|
++ int def_value;
|
|
|
++ int current_value;
|
|
|
++};
|
|
|
++
|
|
|
++#define DETECT_DELAY 200
|
|
|
++#define DETECT_TIME 500
|
|
|
++#define DETECT_WINDOW_TIME 1000
|
|
|
++#define START_TIME 10
|
|
|
++#define END_TIME 10
|
|
|
++#define SHUTDOWN_TIME 3000
|
|
|
++#define LOW_BIT_HIGH_TIME 10
|
|
|
++#define LOW_BIT_LOW_TIME 50
|
|
|
++#define HIGH_BIT_HIGH_TIME 50
|
|
|
++#define HIGH_BIT_LOW_TIME 10
|
|
|
++#define MAX_BRIGHTNESS_VALUE 9
|
|
|
++
|
|
|
++static void entry_1wire_mode(struct ocp8178_backlight *gbl)
|
|
|
++{
|
|
|
++ unsigned long flags = 0;
|
|
|
++ local_irq_save(flags);
|
|
|
++ gpiod_set_value(gbl->gpiod, 0);
|
|
|
++ mdelay(SHUTDOWN_TIME/1000);
|
|
|
++ gpiod_set_value(gbl->gpiod, 1);
|
|
|
++ udelay(DETECT_DELAY);
|
|
|
++ gpiod_set_value(gbl->gpiod, 0);
|
|
|
++ udelay(DETECT_TIME);
|
|
|
++ gpiod_set_value(gbl->gpiod, 1);
|
|
|
++ udelay(DETECT_WINDOW_TIME);
|
|
|
++ local_irq_restore(flags);
|
|
|
++}
|
|
|
++
|
|
|
++static inline void write_bit(struct ocp8178_backlight *gbl, int bit)
|
|
|
++{
|
|
|
++ if (bit) {
|
|
|
++ gpiod_set_value(gbl->gpiod, 0);
|
|
|
++ udelay(HIGH_BIT_LOW_TIME);
|
|
|
++ gpiod_set_value(gbl->gpiod, 1);
|
|
|
++ udelay(HIGH_BIT_HIGH_TIME);
|
|
|
++ } else {
|
|
|
++ gpiod_set_value(gbl->gpiod, 0);
|
|
|
++ udelay(LOW_BIT_LOW_TIME);
|
|
|
++ gpiod_set_value(gbl->gpiod, 1);
|
|
|
++ udelay(LOW_BIT_HIGH_TIME);
|
|
|
++ }
|
|
|
++}
|
|
|
++
|
|
|
++static void write_byte(struct ocp8178_backlight *gbl, int byte)
|
|
|
++{
|
|
|
++ unsigned long flags = 0;
|
|
|
++ unsigned char data = 0x72;
|
|
|
++ int i;
|
|
|
++
|
|
|
++ local_irq_save(flags);
|
|
|
++
|
|
|
++ gpiod_set_value(gbl->gpiod, 1);
|
|
|
++ udelay(START_TIME);
|
|
|
++ for(i = 0; i < 8; i++) {
|
|
|
++ if(data & 0x80) {
|
|
|
++ write_bit(gbl, 1);
|
|
|
++ } else {
|
|
|
++ write_bit(gbl, 0);
|
|
|
++ }
|
|
|
++ data <<= 1;
|
|
|
++ }
|
|
|
++ gpiod_set_value(gbl->gpiod, 0);
|
|
|
++ udelay(END_TIME);
|
|
|
++
|
|
|
++ data = byte & 0x1f;
|
|
|
++
|
|
|
++ gpiod_set_value(gbl->gpiod, 1);
|
|
|
++ udelay(START_TIME);
|
|
|
++ for(i = 0; i < 8; i++) {
|
|
|
++ if(data & 0x80) {
|
|
|
++ write_bit(gbl, 1);
|
|
|
++ } else {
|
|
|
++ write_bit(gbl, 0);
|
|
|
++ }
|
|
|
++ data <<= 1;
|
|
|
++ }
|
|
|
++ gpiod_set_value(gbl->gpiod, 0);
|
|
|
++ udelay(END_TIME);
|
|
|
++ gpiod_set_value(gbl->gpiod, 1);
|
|
|
++
|
|
|
++ local_irq_restore(flags);
|
|
|
++}
|
|
|
++
|
|
|
++unsigned char ocp8178_bl_table[MAX_BRIGHTNESS_VALUE+1] = {0, 1, 4, 8, 12, 16, 20, 24, 28, 31};
|
|
|
++
|
|
|
++static int ocp8178_update_status(struct backlight_device *bl)
|
|
|
++{
|
|
|
++ struct ocp8178_backlight *gbl = bl_get_data(bl);
|
|
|
++ int brightness = bl->props.brightness, i;
|
|
|
++
|
|
|
++ if (bl->props.power != FB_BLANK_UNBLANK ||
|
|
|
++ bl->props.fb_blank != FB_BLANK_UNBLANK ||
|
|
|
++ bl->props.state & (BL_CORE_SUSPENDED | BL_CORE_FBBLANK))
|
|
|
++ brightness = 0;
|
|
|
++
|
|
|
++ if(brightness > MAX_BRIGHTNESS_VALUE)
|
|
|
++ brightness = MAX_BRIGHTNESS_VALUE;
|
|
|
++
|
|
|
++ for(i = 0; i < 2; i++) {
|
|
|
++ entry_1wire_mode(gbl);
|
|
|
++ write_byte(gbl, ocp8178_bl_table[brightness]);
|
|
|
++ }
|
|
|
++ gbl->current_value = brightness;
|
|
|
++
|
|
|
++ return 0;
|
|
|
++}
|
|
|
++
|
|
|
++static int ocp8178_get_brightness(struct backlight_device *bl)
|
|
|
++{
|
|
|
++ struct ocp8178_backlight *gbl = bl_get_data(bl);
|
|
|
++ return gbl->current_value;
|
|
|
++}
|
|
|
++
|
|
|
++static int ocp8178_check_fb(struct backlight_device *bl,
|
|
|
++ struct fb_info *info)
|
|
|
++{
|
|
|
++ struct ocp8178_backlight *gbl = bl_get_data(bl);
|
|
|
++ return gbl->fbdev == NULL || gbl->fbdev == info->dev;
|
|
|
++}
|
|
|
++
|
|
|
++static const struct backlight_ops ocp8178_backlight_ops = {
|
|
|
++ .options = BL_CORE_SUSPENDRESUME,
|
|
|
++ .update_status = ocp8178_update_status,
|
|
|
++ .get_brightness = ocp8178_get_brightness,
|
|
|
++ .check_fb = ocp8178_check_fb,
|
|
|
++};
|
|
|
++
|
|
|
++static int ocp8178_probe_dt(struct platform_device *pdev,
|
|
|
++ struct ocp8178_backlight *gbl)
|
|
|
++{
|
|
|
++ struct device *dev = &pdev->dev;
|
|
|
++ struct device_node *np = dev->of_node;
|
|
|
++ enum gpiod_flags flags;
|
|
|
++ int ret = 0;
|
|
|
++ u32 value32;
|
|
|
++
|
|
|
++ of_property_read_u32(np, "default-brightness", &value32);
|
|
|
++ if(value32 > MAX_BRIGHTNESS_VALUE)
|
|
|
++ gbl->def_value = MAX_BRIGHTNESS_VALUE;
|
|
|
++ else
|
|
|
++ gbl->def_value = value32;
|
|
|
++ flags = gbl->def_value ? GPIOD_OUT_HIGH : GPIOD_OUT_LOW;
|
|
|
++
|
|
|
++ gbl->gpiod = devm_gpiod_get(dev, "backlight-control", flags);
|
|
|
++ if (IS_ERR(gbl->gpiod)) {
|
|
|
++ ret = PTR_ERR(gbl->gpiod);
|
|
|
++
|
|
|
++ if (ret != -EPROBE_DEFER) {
|
|
|
++ dev_err(dev,
|
|
|
++ "Error: The gpios parameter is missing or invalid.\n");
|
|
|
++ }
|
|
|
++ }
|
|
|
++
|
|
|
++ return ret;
|
|
|
++}
|
|
|
++
|
|
|
++static struct backlight_device *backlight;
|
|
|
++
|
|
|
++static int ocp8178_probe(struct platform_device *pdev)
|
|
|
++{
|
|
|
++ struct backlight_properties props;
|
|
|
++ struct backlight_device *bl;
|
|
|
++ struct ocp8178_backlight *gbl;
|
|
|
++ struct device_node *np = pdev->dev.of_node;
|
|
|
++ int ret;
|
|
|
++
|
|
|
++ if ( !np) {
|
|
|
++ dev_err(&pdev->dev,
|
|
|
++ "failed to find platform data or device tree node.\n");
|
|
|
++ return -ENODEV;
|
|
|
++ }
|
|
|
++
|
|
|
++ gbl = devm_kzalloc(&pdev->dev, sizeof(*gbl), GFP_KERNEL);
|
|
|
++ if (gbl == NULL)
|
|
|
++ return -ENOMEM;
|
|
|
++
|
|
|
++ gbl->dev = &pdev->dev;
|
|
|
++
|
|
|
++ ret = ocp8178_probe_dt(pdev, gbl);
|
|
|
++ if (ret)
|
|
|
++ return ret;
|
|
|
++
|
|
|
++ gbl->current_value = gbl->def_value;
|
|
|
++
|
|
|
++ memset(&props, 0, sizeof(props));
|
|
|
++ props.type = BACKLIGHT_RAW;
|
|
|
++ props.max_brightness = MAX_BRIGHTNESS_VALUE;
|
|
|
++ bl = devm_backlight_device_register(&pdev->dev, dev_name(&pdev->dev),
|
|
|
++ &pdev->dev, gbl, &ocp8178_backlight_ops,
|
|
|
++ &props);
|
|
|
++ if (IS_ERR(bl)) {
|
|
|
++ dev_err(&pdev->dev, "failed to register backlight\n");
|
|
|
++ return PTR_ERR(bl);
|
|
|
++ }
|
|
|
++
|
|
|
++// entry_1wire_mode(gbl);
|
|
|
++
|
|
|
++ bl->props.brightness = gbl->def_value;
|
|
|
++ backlight_update_status(bl);
|
|
|
++
|
|
|
++ platform_set_drvdata(pdev, bl);
|
|
|
++
|
|
|
++ backlight = bl;
|
|
|
++ return 0;
|
|
|
++}
|
|
|
++
|
|
|
++static int ocp8178_suspend(struct platform_device *pdev, pm_message_t state)
|
|
|
++{
|
|
|
++ return 0;
|
|
|
++}
|
|
|
++
|
|
|
++static int ocp8178_resume(struct platform_device *pdev)
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++{
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++ return 0;
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++}
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++
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++static struct of_device_id ocp8178_of_match[] = {
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++ { .compatible = "ocp8178-backlight" },
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|
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++ { /* sentinel */ }
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++};
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++
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++MODULE_DEVICE_TABLE(of, ocp8178_of_match);
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++
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|
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++static struct platform_driver ocp8178_driver = {
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|
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++ .driver = {
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++ .name = "ocp8178-backlight",
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|
|
++ .of_match_table = of_match_ptr(ocp8178_of_match),
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++ },
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++ .probe = ocp8178_probe,
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++ .suspend = ocp8178_suspend,
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++ .resume = ocp8178_resume,
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|
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++};
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++
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++module_platform_driver(ocp8178_driver);
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++
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++MODULE_DESCRIPTION("OCP8178 Driver");
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|
|
++MODULE_LICENSE("GPL");
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