Thread (1 message) 1 message, 1 author, 2017-05-30

[PATCH 1/2] gpio: mvebu: fix blink counter register selection

From: Gregory CLEMENT <hidden>
Date: 2017-05-30 13:06:32
Also in: linux-gpio, linux-pwm, lkml

Hi again,
 
 On mar., mai 30 2017, Gregory CLEMENT [off-list ref] wrote:
Hi Richard,
 
 On mar., mai 30 2017, Richard Genoud [off-list ref] wrote:
quoted
The blink counter A was always selected because 0 was forced in the
blink select counter register.
The variable 'set' was obviously there to be used as the register value,
selecting the B counter when id==1 and A counter when id==0.

Tested on clearfog-pro (Marvell 88F6828)

Signed-off-by: Richard Genoud <redacted>
Looks good for me:

Reviewed-by: Gregory CLEMENT <redacted>

I thinks this one should go to v4.12-rc as it is a fix.

As I modified the same part of the code in my series, I think I will
have to rebase my series on top of this patch as soon as Linus Walleij
will have accepted it.
I think we could also add:
Fixes: 757642f9a584 ("gpio: mvebu: Add limited PWM support")

Gregory
Thanks,

Gregory

quoted
---
 drivers/gpio/gpio-mvebu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c
index 19a92efabbef..cdef2c78cb3b 100644
--- a/drivers/gpio/gpio-mvebu.c
+++ b/drivers/gpio/gpio-mvebu.c
@@ -747,7 +747,7 @@ static int mvebu_pwm_probe(struct platform_device *pdev,
 		set = U32_MAX;
 	else
 		return -EINVAL;
-	writel_relaxed(0, mvebu_gpioreg_blink_counter_select(mvchip));
+	writel_relaxed(set, mvebu_gpioreg_blink_counter_select(mvchip));
 
 	mvpwm = devm_kzalloc(dev, sizeof(struct mvebu_pwm), GFP_KERNEL);
 	if (!mvpwm)
-- 
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com

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-- 
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
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