gpio: mvebu: change compatible string for PWM support

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: 757642f9a584 ("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>

diff --git a/Documentation/devicetree/bindings/gpio/gpio-mvebu.txt b/Documentation/devicetree/bindings/gpio/gpio-mvebu.txt
index 42c3bb2d53e88b651a7d39efe00e278c24d9c9b3..01e331a5f3e7491fba25188b5a12e91722057e42 100644 (file)
--- a/Documentation/devicetree/bindings/gpio/gpio-mvebu.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio-mvebu.txt
@@ -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>;

diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c
index 5104b63981390adb878ed27f4ca2d0d758c65307..c83ea68be792df45a354f38dee2438a866a1f29d 100644 (file)
--- a/drivers/gpio/gpio-mvebu.c
+++ b/drivers/gpio/gpio-mvebu.c
@@ -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);