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@@ -10,25 +10,54 @@
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#include <dm/device.h>
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#include <dm/device_compat.h>
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#include <generic-phy.h>
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+#include <asm-generic/gpio.h>
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struct nop_phy_priv {
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struct clk_bulk bulk;
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+#if CONFIG_IS_ENABLED(DM_GPIO)
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+ struct gpio_desc reset_gpio;
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+#endif
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};
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+#if CONFIG_IS_ENABLED(DM_GPIO)
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+static int nop_phy_reset(struct phy *phy)
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+{
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+ struct nop_phy_priv *priv = dev_get_priv(phy->dev);
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+
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+ /* Return if there is no gpio since it's optional */
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+ if (!dm_gpio_is_valid(&priv->reset_gpio))
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+ return 0;
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+
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+ return dm_gpio_set_value(&priv->reset_gpio, false);
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+}
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+#endif
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+
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static int nop_phy_init(struct phy *phy)
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{
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struct nop_phy_priv *priv = dev_get_priv(phy->dev);
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+ int ret = 0;
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- if (CONFIG_IS_ENABLED(CLK))
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- return clk_enable_bulk(&priv->bulk);
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+ if (CONFIG_IS_ENABLED(CLK)) {
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+ ret = clk_enable_bulk(&priv->bulk);
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+ if (ret)
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+ return ret;
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+ }
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+#if CONFIG_IS_ENABLED(DM_GPIO)
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+ ret = nop_phy_reset(phy);
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+ if (ret) {
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+ if (CONFIG_IS_ENABLED(CLK))
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+ clk_disable_bulk(&priv->bulk);
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+ return ret;
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+ }
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+#endif
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return 0;
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}
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static int nop_phy_probe(struct udevice *dev)
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{
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struct nop_phy_priv *priv = dev_get_priv(dev);
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- int ret;
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+ int ret = 0;
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if (CONFIG_IS_ENABLED(CLK)) {
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ret = clk_get_bulk(dev, &priv->bulk);
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@@ -37,6 +66,13 @@ static int nop_phy_probe(struct udevice *dev)
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return ret;
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}
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}
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+#if CONFIG_IS_ENABLED(DM_GPIO)
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+ ret = gpio_request_by_name(dev, "reset-gpios", 0,
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+ &priv->reset_gpio,
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+ GPIOD_IS_OUT);
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+#endif
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+ if (ret != -ENOENT)
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+ return ret;
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return 0;
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}
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@@ -49,6 +85,9 @@ static const struct udevice_id nop_phy_ids[] = {
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static struct phy_ops nop_phy_ops = {
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.init = nop_phy_init,
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+#if CONFIG_IS_ENABLED(DM_GPIO)
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+ .reset = nop_phy_reset,
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+#endif
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};
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U_BOOT_DRIVER(nop_phy) = {
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