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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2018-12-17 09:43:13 +0100
committerLinus Walleij <linus.walleij@linaro.org>2018-12-21 09:23:46 +0100
commitc8da642d41a6811c21177c9994aa7dc35be67d46 (patch)
treef4b06950c1151452c165cb675cb8292b81e462df
parentabf221d2f51b8ce7b9959a8953f880a8b0a1400d (diff)
gpio: mvebu: only fail on missing clk if pwm is actually to be usedgpio-v4.20-3
The gpio IP on Armada 370 at offset 0x18180 has neither a clk nor pwm registers. So there is no need for a clk as the pwm isn't used anyhow. So only check for the clk in the presence of the pwm registers. This fixes a failure to probe the gpio driver for the above mentioned gpio device. Fixes: 757642f9a584 ("gpio: mvebu: Add limited PWM support") Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Gregory CLEMENT <gregory.clement@bootlin.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
-rw-r--r--drivers/gpio/gpio-mvebu.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c
index 6e02148c208b..adc768f908f1 100644
--- a/drivers/gpio/gpio-mvebu.c
+++ b/drivers/gpio/gpio-mvebu.c
@@ -773,9 +773,6 @@ static int mvebu_pwm_probe(struct platform_device *pdev,
"marvell,armada-370-gpio"))
return 0;
- if (IS_ERR(mvchip->clk))
- return PTR_ERR(mvchip->clk);
-
/*
* There are only two sets of PWM configuration registers for
* all the GPIO lines on those SoCs which this driver reserves
@@ -786,6 +783,9 @@ static int mvebu_pwm_probe(struct platform_device *pdev,
if (!res)
return 0;
+ if (IS_ERR(mvchip->clk))
+ return PTR_ERR(mvchip->clk);
+
/*
* Use set A for lines of GPIO chip with id 0, B for GPIO chip
* with id 1. Don't allow further GPIO chips to be used for PWM.

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