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pinctrl: meson: add optional region for drive strength

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On the G12a, there is a new 'region' to handle the drive-strength.
This is optional since the older do not have this.

Fixes: 29ae0952e8 ("pinctrl: meson-g12a: add pinctrl driver support")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Jerome Brunet 2019-01-17 11:23:15 +01:00 • committed by Linus Walleij
parent e66dd48e8b
commit 64856974a3
2 changed files with 7 additions and 0 deletions
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6
drivers/pinctrl/meson/pinctrl-meson.c
View file

@ -507,6 +507,12 @@ static int meson_pinctrl_parse_dt(struct meson_pinctrl *pc,
if (IS_ERR(pc->reg_pullen))
pc->reg_pullen = pc->reg_pull;
pc->reg_ds = meson_map_resource(pc, gpio_np, "ds");
if (IS_ERR(pc->reg_ds)) {
dev_dbg(pc->dev, "ds registers not found - skipping\n");
pc->reg_ds = NULL;
}
return 0;
}

1
drivers/pinctrl/meson/pinctrl-meson.h
View file

@ -120,6 +120,7 @@ struct meson_pinctrl {
struct regmap *reg_pullen;
struct regmap *reg_pull;
struct regmap *reg_gpio;
struct regmap *reg_ds;
struct gpio_chip chip;
struct device_node *of_node;
};