pinctrl: gemini: Mask and set properly

Message ID 20181009081153.26011-1-linus.walleij@linaro.org
State Accepted
Commit d17f477c5bc6b4a5dd9f51ae263870da132a8e89
Headers show
Series
  • pinctrl: gemini: Mask and set properly
Related show

Commit Message

Linus Walleij Oct. 9, 2018, 8:11 a.m.
The code was written under the assumption that the
regmap_update_bits() would mask the bits in the mask and
set the bits in the value.

It missed the points that it will not set bits in the value
unless these are also masked in the mask. Set value bits
that are not in the mask will simply be ignored.

Fixes: 06351d133dea ("pinctrl: add a Gemini SoC pin controller")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

---
 drivers/pinctrl/pinctrl-gemini.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

-- 
2.17.1

Patch

diff --git a/drivers/pinctrl/pinctrl-gemini.c b/drivers/pinctrl/pinctrl-gemini.c
index fa7d998e1d5a..1e484a36ff07 100644
--- a/drivers/pinctrl/pinctrl-gemini.c
+++ b/drivers/pinctrl/pinctrl-gemini.c
@@ -2184,7 +2184,8 @@  static int gemini_pmx_set_mux(struct pinctrl_dev *pctldev,
 		 func->name, grp->name);
 
 	regmap_read(pmx->map, GLOBAL_MISC_CTRL, &before);
-	regmap_update_bits(pmx->map, GLOBAL_MISC_CTRL, grp->mask,
+	regmap_update_bits(pmx->map, GLOBAL_MISC_CTRL,
+			   grp->mask | grp->value,
 			   grp->value);
 	regmap_read(pmx->map, GLOBAL_MISC_CTRL, &after);