diff options
| author | Jonathan Neuschäfer <j.neuschaefer@gmx.net> | 2022-11-05 21:59:04 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2022-11-10 11:19:42 +0300 |
| commit | 4f1d423cd2bd0d8cc20dfbb8d2e4e14b1e417790 (patch) | |
| tree | 3f80b930c7bcc645a5df51e18fad309e2d9c05a9 /drivers/pinctrl | |
| parent | 4829297c9bf4659f98e946ba810ebe86411e6a9d (diff) | |
| download | linux-4f1d423cd2bd0d8cc20dfbb8d2e4e14b1e417790.tar.xz | |
pinctrl: nuvoton: wpcm450: Refactor MFSEL setting code
In preparation for the next patch, which makes the logic around
setting/resetting bits in MFSEL a little more complicated, move that
code to a new function
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Link: https://lore.kernel.org/r/20221105185911.1547847-2-j.neuschaefer@gmx.net
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/nuvoton/pinctrl-wpcm450.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/pinctrl/nuvoton/pinctrl-wpcm450.c b/drivers/pinctrl/nuvoton/pinctrl-wpcm450.c index 211ad32cc0d8..49b2177af17b 100644 --- a/drivers/pinctrl/nuvoton/pinctrl-wpcm450.c +++ b/drivers/pinctrl/nuvoton/pinctrl-wpcm450.c @@ -800,6 +800,14 @@ static const struct pinctrl_pin_desc wpcm450_pins[] = { WPCM450_PIN(124), WPCM450_PIN(125), WPCM450_PIN(126), WPCM450_PIN(127), }; +/* Helper function to update MFSEL field according to the selected function */ +static void wpcm450_update_mfsel(struct regmap *gcr_regmap, int reg, int bit, int fn, int fn_selected) +{ + bool value = (fn == fn_selected); + + regmap_update_bits(gcr_regmap, reg, BIT(bit), value ? BIT(bit) : 0); +} + /* Enable mode in pin group */ static void wpcm450_setfunc(struct regmap *gcr_regmap, const unsigned int *pin, int npins, int func) @@ -811,13 +819,11 @@ static void wpcm450_setfunc(struct regmap *gcr_regmap, const unsigned int *pin, cfg = &pincfg[pin[i]]; if (func == fn_gpio || cfg->fn0 == func || cfg->fn1 == func) { if (cfg->reg0) - regmap_update_bits(gcr_regmap, cfg->reg0, - BIT(cfg->bit0), - (cfg->fn0 == func) ? BIT(cfg->bit0) : 0); + wpcm450_update_mfsel(gcr_regmap, cfg->reg0, + cfg->bit0, cfg->fn0, func); if (cfg->reg1) - regmap_update_bits(gcr_regmap, cfg->reg1, - BIT(cfg->bit1), - (cfg->fn1 == func) ? BIT(cfg->bit1) : 0); + wpcm450_update_mfsel(gcr_regmap, cfg->reg1, + cfg->bit1, cfg->fn1, func); } } } |