diff options
Diffstat (limited to 'target/linux/ipq40xx/patches-4.14/080-pinctrl-msm-fix-gpio-hog-related-boot-issues.patch')
| -rw-r--r-- | target/linux/ipq40xx/patches-4.14/080-pinctrl-msm-fix-gpio-hog-related-boot-issues.patch | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/target/linux/ipq40xx/patches-4.14/080-pinctrl-msm-fix-gpio-hog-related-boot-issues.patch b/target/linux/ipq40xx/patches-4.14/080-pinctrl-msm-fix-gpio-hog-related-boot-issues.patch index cffcd6c76c..81b13e6b2c 100644 --- a/target/linux/ipq40xx/patches-4.14/080-pinctrl-msm-fix-gpio-hog-related-boot-issues.patch +++ b/target/linux/ipq40xx/patches-4.14/080-pinctrl-msm-fix-gpio-hog-related-boot-issues.patch @@ -69,35 +69,3 @@ Origin: other, https://patchwork.kernel.org/patch/10339127/ #gpio-cells = <2>; interrupt-controller; #interrupt-cells = <2>; ---- a/drivers/pinctrl/qcom/pinctrl-msm.c -+++ b/drivers/pinctrl/qcom/pinctrl-msm.c -@@ -839,11 +839,24 @@ static int msm_gpio_init(struct msm_pinc - return ret; - } - -- ret = gpiochip_add_pin_range(&pctrl->chip, dev_name(pctrl->dev), 0, 0, chip->ngpio); -- if (ret) { -- dev_err(pctrl->dev, "Failed to add pin range\n"); -- gpiochip_remove(&pctrl->chip); -- return ret; -+ /* -+ * For DeviceTree-supported systems, the gpio core checks the -+ * pinctrl's device node for the "gpio-ranges" property. -+ * If it is present, it takes care of adding the pin ranges -+ * for the driver. In this case the driver can skip ahead. -+ * -+ * In order to remain compatible with older, existing DeviceTree -+ * files which don't set the "gpio-ranges" property or systems that -+ * utilize ACPI the driver has to call gpiochip_add_pin_range(). -+ */ -+ if (!of_property_read_bool(pctrl->dev->of_node, "gpio-ranges")) { -+ ret = gpiochip_add_pin_range(&pctrl->chip, -+ dev_name(pctrl->dev), 0, 0, chip->ngpio); -+ if (ret) { -+ dev_err(pctrl->dev, "Failed to add pin range\n"); -+ gpiochip_remove(&pctrl->chip); -+ return ret; -+ } - } - - ret = gpiochip_irqchip_add(chip, |