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Subject[PATCH 3/3] pinctrl: meson: add optional region for drive strength
Date
On the G12a, there is a new 'region' to handle the drive-strength.
This is optional since the older do not have this.

Fixes: 29ae0952e85f ("pinctrl: meson-g12a: add pinctrl driver support")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
---
drivers/pinctrl/meson/pinctrl-meson.c | 6 ++++++
drivers/pinctrl/meson/pinctrl-meson.h | 1 +
2 files changed, 7 insertions(+)

diff --git a/drivers/pinctrl/meson/pinctrl-meson.c b/drivers/pinctrl/meson/pinctrl-meson.c
index a4ae1ac5369e..96a4a72708e4 100644
--- a/drivers/pinctrl/meson/pinctrl-meson.c
+++ b/drivers/pinctrl/meson/pinctrl-meson.c
@@ -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;
}

diff --git a/drivers/pinctrl/meson/pinctrl-meson.h b/drivers/pinctrl/meson/pinctrl-meson.h
index eff61ea1c67e..5eaab925f427 100644
--- a/drivers/pinctrl/meson/pinctrl-meson.h
+++ b/drivers/pinctrl/meson/pinctrl-meson.h
@@ -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;
};
--
2.20.1
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