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ARM: dts: exynos: Use 'hpd-gpios' instead of 'hpd-gpio'

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This patch enables getting a HPD GPIO descriptor quicker.
The exynos-hdmi driver uses "hpd" for HDMI hot plug detection.

	static int hdmi_resources_init(struct hdmi_context *hdata)
	{
		...
		hdata->hpd_gpio = devm_gpiod_get(dev, "hpd", GPIOD_IN);
		...
	}

This calls 'of_find_gpio()' and it generates the GPIO consumer ID by referring
GPIO suffix. So 'hpd-gpios' is preferred on getting a GPIO descriptor.

However, if the device tree uses 'hpd-gpio', then the exynos-hdmi driver
always retries to get a GPIO descriptor because the first GPIO suffix is not
'gpio' but 'gpios'. So you always see the debug message below.

	of_get_named_gpiod_flags: can't parse 'hpd-gpios' property of node '/soc/hdmi@14530000[0]'

Use the preferred property, 'hpd-gpios' instead of 'hpd-gpio'.

Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Cc: devicetree@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Milo Kim <woogyom.kim@gmail.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
This commit is contained in:
Milo Kim 2016-08-24 22:07:16 +09:00 committed by Krzysztof Kozlowski
parent 5a5232d193
commit 05b01dd936
11 changed files with 12 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
Documentation/devicetree/bindings/display/exynos/exynos_hdmi.txt
View File

@ -9,7 +9,7 @@ Required properties:
- reg: physical base address of the hdmi and length of memory mapped
region.
- interrupts: interrupt number to the cpu.
- hpd-gpio: following information about the hotplug gpio pin.
- hpd-gpios: following information about the hotplug gpio pin.
a) phandle of the gpio controller node.
b) pin number within the gpio controller.
c) optional flags and pull up/down.
@ -56,7 +56,7 @@ Example:
compatible = "samsung,exynos4212-hdmi";
reg = <0x14530000 0x100000>;
interrupts = <0 95 0>;
hpd-gpio = <&gpx3 7 1>;
hpd-gpios = <&gpx3 7 1>;
ddc = <&hdmi_ddc_node>;
phy = <&hdmi_phy_node>;
samsung,syscon-phandle = <&pmu_system_controller>;

2
arch/arm/boot/dts/exynos4210-universal_c210.dts
View File

@ -269,7 +269,7 @@
};
&hdmi {
hpd-gpio = <&gpx3 7 GPIO_ACTIVE_HIGH>;
hpd-gpios = <&gpx3 7 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&hdmi_hpd>;
hdmi-en-supply = <&hdmi_en>;

2
arch/arm/boot/dts/exynos4412-odroid-common.dtsi
View File

@ -227,7 +227,7 @@
};
&hdmi {
hpd-gpio = <&gpx3 7 GPIO_ACTIVE_HIGH>;
hpd-gpios = <&gpx3 7 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&hdmi_hpd>;
vdd-supply = <&ldo8_reg>;

2
arch/arm/boot/dts/exynos5250-arndale.dts
View File

@ -152,7 +152,7 @@
};
&hdmi {
hpd-gpio = <&gpx3 7 GPIO_ACTIVE_LOW>;
hpd-gpios = <&gpx3 7 GPIO_ACTIVE_LOW>;
vdd_osc-supply = <&ldo10_reg>;
vdd_pll-supply = <&ldo8_reg>;
vdd-supply = <&ldo8_reg>;

2
arch/arm/boot/dts/exynos5250-smdk5250.dts
View File

@ -116,7 +116,7 @@
};
&hdmi {
hpd-gpio = <&gpx3 7 GPIO_ACTIVE_HIGH>;
hpd-gpios = <&gpx3 7 GPIO_ACTIVE_HIGH>;
};
&i2c_0 {

2
arch/arm/boot/dts/exynos5250-snow-common.dtsi
View File

@ -260,7 +260,7 @@
};
&hdmi {
hpd-gpio = <&gpx3 7 GPIO_ACTIVE_HIGH>;
hpd-gpios = <&gpx3 7 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&hdmi_hpd_irq>;
phy = <&hdmiphy>;

2
arch/arm/boot/dts/exynos5250-spring.dts
View File

@ -91,7 +91,7 @@
};
&hdmi {
hpd-gpio = <&gpx3 7 GPIO_ACTIVE_HIGH>;
hpd-gpios = <&gpx3 7 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&hdmi_hpd_irq>;
phy = <&hdmiphy>;

2
arch/arm/boot/dts/exynos5420-peach-pit.dts
View File

@ -179,7 +179,7 @@
&hdmi {
status = "okay";
hpd-gpio = <&gpx3 7 GPIO_ACTIVE_HIGH>;
hpd-gpios = <&gpx3 7 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&hdmi_hpd_irq>;
ddc = <&i2c_2>;

2
arch/arm/boot/dts/exynos5420-smdk5420.dts
View File

@ -130,7 +130,7 @@
&hdmi {
status = "okay";
hpd-gpio = <&gpx3 7 GPIO_ACTIVE_HIGH>;
hpd-gpios = <&gpx3 7 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&hdmi_hpd_irq>;
};

2
arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
View File

@ -250,7 +250,7 @@
&hdmi {
status = "okay";
hpd-gpio = <&gpx3 7 GPIO_ACTIVE_HIGH>;
hpd-gpios = <&gpx3 7 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&hdmi_hpd_irq>;

2
arch/arm/boot/dts/exynos5800-peach-pi.dts
View File

@ -179,7 +179,7 @@
&hdmi {
status = "okay";
hpd-gpio = <&gpx3 7 GPIO_ACTIVE_HIGH>;
hpd-gpios = <&gpx3 7 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&hdmi_hpd_irq>;
ddc = <&i2c_2>;