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@@ -0,0 +1,96 @@
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+/*
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+ * Qualcomm pm8916 pmic driver
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+ *
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+ * (C) Copyright 2015 Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
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+ *
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+ * SPDX-License-Identifier: GPL-2.0+
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+ */
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+#include <common.h>
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+#include <dm.h>
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+#include <dm/root.h>
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+#include <power/pmic.h>
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+#include <spmi/spmi.h>
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+
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+DECLARE_GLOBAL_DATA_PTR;
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+
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+#define PID_SHIFT 8
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+#define PID_MASK (0xFF << PID_SHIFT)
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+#define REG_MASK 0xFF
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+
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+struct pm8916_priv {
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+ uint16_t usid; /* Slave ID on SPMI bus */
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+};
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+
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+static int pm8916_reg_count(struct udevice *dev)
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+{
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+ return 0xFFFF;
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+}
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+
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+static int pm8916_write(struct udevice *dev, uint reg, const uint8_t *buff,
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+ int len)
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+{
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+ struct pm8916_priv *priv = dev_get_priv(dev);
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+
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+ if (len != 1)
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+ return -EINVAL;
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+
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+ return spmi_reg_write(dev->parent, priv->usid,
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+ (reg & PID_MASK) >> PID_SHIFT, reg & REG_MASK,
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+ *buff);
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+}
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+
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+static int pm8916_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
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+{
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+ struct pm8916_priv *priv = dev_get_priv(dev);
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+ int val;
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+
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+ if (len != 1)
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+ return -EINVAL;
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+
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+ val = spmi_reg_read(dev->parent, priv->usid,
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+ (reg & PID_MASK) >> PID_SHIFT, reg & REG_MASK);
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+
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+ if (val < 0)
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+ return val;
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+ *buff = val;
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+ return 0;
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+}
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+
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+static struct dm_pmic_ops pm8916_ops = {
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+ .reg_count = pm8916_reg_count,
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+ .read = pm8916_read,
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+ .write = pm8916_write,
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+};
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+
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+static const struct udevice_id pm8916_ids[] = {
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+ { .compatible = "qcom,spmi-pmic" },
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+ { }
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+};
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+
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+static int pm8916_probe(struct udevice *dev)
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+{
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+ struct pm8916_priv *priv = dev_get_priv(dev);
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+
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+ priv->usid = dev_get_addr(dev);
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+
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+ if (priv->usid == FDT_ADDR_T_NONE)
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+ return -EINVAL;
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+
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+ return 0;
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+}
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+
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+
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+static int pm8916_bind(struct udevice *dev)
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+{
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+ return dm_scan_fdt_node(dev, gd->fdt_blob, dev->of_offset, false);
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+}
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+
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+U_BOOT_DRIVER(pmic_pm8916) = {
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+ .name = "pmic_pm8916",
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+ .id = UCLASS_PMIC,
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+ .of_match = pm8916_ids,
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+ .bind = pm8916_bind,
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+ .probe = pm8916_probe,
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+ .ops = &pm8916_ops,
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+ .priv_auto_alloc_size = sizeof(struct pm8916_priv),
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+};
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