[PATCH v2 3/4] pinctrl: armada-37xx: Checks for errors in gpio_request_enable callback
Pali Rohár
pali at kernel.org
Fri Aug 5 05:22:01 PDT 2022
Now when all MPP pins are properly defined and every MPP pin has GPIO
function, always checks for errors in armada_37xx_gpio_request_enable()
function when calling armada_37xx_pmx_set_by_name(). Function
armada_37xx_pmx_set_by_name() should not return "not supported" error
anymore for any GPIO pin when requesting GPIO mode.
Fixes: 87466ccd9401 ("pinctrl: armada-37xx: Add pin controller support for Armada 37xx")
Signed-off-by: Pali Rohár <pali at kernel.org>
---
Changes in v2:
* add missing int ret;
---
drivers/pinctrl/mvebu/pinctrl-armada-37xx.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
index e5e5f0ea0e77..3227f70922fc 100644
--- a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
+++ b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
@@ -500,11 +500,15 @@ static int armada_37xx_gpio_request_enable(struct pinctrl_dev *pctldev,
struct armada_37xx_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
struct armada_37xx_pin_group *group;
int grp = 0;
+ int ret;
dev_dbg(info->dev, "requesting gpio %d\n", offset);
- while ((group = armada_37xx_find_next_grp_by_pin(info, offset, &grp)))
- armada_37xx_pmx_set_by_name(pctldev, "gpio", group);
+ while ((group = armada_37xx_find_next_grp_by_pin(info, offset, &grp))) {
+ ret = armada_37xx_pmx_set_by_name(pctldev, "gpio", group);
+ if (ret)
+ return ret;
+ }
return 0;
}
--
2.20.1
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