Qualcomm PMICs number their GPIOs starting from 1, implement a custom .xlate method to handle this.
Reviewed-by: Neil Armstrong neil.armstrong@linaro.org Signed-off-by: Caleb Connolly caleb.connolly@linaro.org --- drivers/gpio/qcom_pmic_gpio.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+)
diff --git a/drivers/gpio/qcom_pmic_gpio.c b/drivers/gpio/qcom_pmic_gpio.c index 6167c8411678..2a4fef8d28cb 100644 --- a/drivers/gpio/qcom_pmic_gpio.c +++ b/drivers/gpio/qcom_pmic_gpio.c @@ -209,12 +209,34 @@ static int qcom_gpio_set_value(struct udevice *dev, unsigned offset, REG_CTL_OUTPUT_MASK, !!value); }
+static int qcom_gpio_xlate(struct udevice *dev, struct gpio_desc *desc, + struct ofnode_phandle_args *args) +{ + struct gpio_dev_priv *uc_priv = dev_get_uclass_priv(dev); + + if (args->args_count < 1) + return -EINVAL; + + /* GPIOs in DT are 1-based */ + desc->offset = args->args[0] - 1; + if (desc->offset >= uc_priv->gpio_count) + return -EINVAL; + + if (args->args_count < 2) + return 0; + + desc->flags = gpio_flags_xlate(args->args[1]); + + return 0; +} + static const struct dm_gpio_ops qcom_gpio_ops = { .direction_input = qcom_gpio_direction_input, .direction_output = qcom_gpio_direction_output, .get_value = qcom_gpio_get_value, .set_value = qcom_gpio_set_value, .get_function = qcom_gpio_get_function, + .xlate = qcom_gpio_xlate, };
static int qcom_gpio_probe(struct udevice *dev)