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gpio: mvebu: change compatible string for PWM support

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As it turns out more than just Armada 370 and XP support using GPIO
lines as PWM lines. For example the Armada 38x family has the same
hardware support. As such "marvell,armada-370-xp-gpio" for the
compatible string is a misnomer.

Change the compatible string to "marvell,armada-370-gpio" before the
driver makes it out of the -rc stage. This also follows the practice of
using only the first device family supported as part of the name.

Also update the documentation and comments in the code accordingly.

Fixes: 757642f9a5 ("gpio: mvebu: Add limited PWM support")
Signed-off-by: Ralph Sennhauser <ralph.sennhauser@gmail.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Ralph Sennhauser 2017-06-01 22:08:20 +02:00 committed by Linus Walleij
parent 41f1830f5a
commit 6c7515c61f
2 changed files with 6 additions and 6 deletions
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6
Documentation/devicetree/bindings/gpio/gpio-mvebu.txt
View file

@ -41,9 +41,9 @@ Required properties:
Optional properties:
In order to use the GPIO lines in PWM mode, some additional optional
properties are required. Only Armada 370 and XP support these properties.
properties are required.
- compatible: Must contain "marvell,armada-370-xp-gpio"
- compatible: Must contain "marvell,armada-370-gpio"
- reg: an additional register set is needed, for the GPIO Blink
Counter on/off registers.
@ -71,7 +71,7 @@ Example:
};
gpio1: gpio@18140 {
compatible = "marvell,armada-370-xp-gpio";
compatible = "marvell,armada-370-gpio";
reg = <0x18140 0x40>, <0x181c8 0x08>;
reg-names = "gpio", "pwm";
ngpios = <17>;

6
drivers/gpio/gpio-mvebu.c
View file

@ -721,7 +721,7 @@ static int mvebu_pwm_probe(struct platform_device *pdev,
u32 set;
if (!of_device_is_compatible(mvchip->chip.of_node,
"marvell,armada-370-xp-gpio"))
"marvell,armada-370-gpio"))
return 0;
if (IS_ERR(mvchip->clk))
@ -852,7 +852,7 @@ static const struct of_device_id mvebu_gpio_of_match[] = {
.data = (void *) MVEBU_GPIO_SOC_VARIANT_ARMADAXP,
},
{
.compatible = "marvell,armada-370-xp-gpio",
.compatible = "marvell,armada-370-gpio",
.data = (void *) MVEBU_GPIO_SOC_VARIANT_ORION,
},
{
@ -1128,7 +1128,7 @@ static int mvebu_gpio_probe(struct platform_device *pdev)
mvchip);
}
/* Armada 370/XP has simple PWM support for GPIO lines */
/* Some MVEBU SoCs have simple PWM support for GPIO lines */
if (IS_ENABLED(CONFIG_PWM))
return mvebu_pwm_probe(pdev, mvchip, id);