diff options
| author |   Qianggui Song <qianggui.song@amlogic.com> | 2019-12-26 10:37:34 +0800 |
|---|---|---|
| committer |   Linus Walleij <linus.walleij@linaro.org> | 2020-01-07 11:21:07 +0100 |
| commit | 35c60be220572de7d6605c4318f640d133982040 (patch) | |
| tree | 5bf09fabd24afb58cdf3b1afbf38ef45345cfcc2 /drivers/pinctrl | |
| parent | pinctrl: lochnagar: select GPIOLIB (diff) | |
| download | linux-dev-35c60be220572de7d6605c4318f640d133982040.tar.xz linux-dev-35c60be220572de7d6605c4318f640d133982040.zip | |
pinctrl: meson: Fix wrong shift value when get drive-strength
In meson_pinconf_get_drive_strength, variable bit is calculated by
meson_calc_reg_and_bit, this value is the offset from the first pin of a
certain bank to current pin, while Meson SoCs use two bits for each pin
to depict drive-strength. So a left shift by 1 should be done or node
pinconf-pins shows wrong message.
Fixes: 6ea3e3bbef37 ("pinctrl: meson: add support of drive-strength-microamp")
Signed-off-by: Qianggui Song <qianggui.song@amlogic.com>
Link: https://lore.kernel.org/r/20191226023734.9631-1-qianggui.song@amlogic.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/meson/pinctrl-meson.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/pinctrl/meson/pinctrl-meson.c b/drivers/pinctrl/meson/pinctrl-meson.c index 3c80828a5e50..bbc919bef2bf 100644 --- a/drivers/pinctrl/meson/pinctrl-meson.c +++ b/drivers/pinctrl/meson/pinctrl-meson.c @@ -441,6 +441,7 @@ static int meson_pinconf_get_drive_strength(struct meson_pinctrl *pc, return ret; meson_calc_reg_and_bit(bank, pin, REG_DS, ®, &bit); + bit = bit << 1; ret = regmap_read(pc->reg_ds, reg, &val); if (ret) |