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path: root/drivers/pinctrl/meson/pinctrl-meson.c
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Diffstat (limited to 'drivers/pinctrl/meson/pinctrl-meson.c')
-rw-r--r--drivers/pinctrl/meson/pinctrl-meson.c24
1 files changed, 16 insertions, 8 deletions
diff --git a/drivers/pinctrl/meson/pinctrl-meson.c b/drivers/pinctrl/meson/pinctrl-meson.c
index ea87d739f534..96a4a72708e4 100644
--- a/drivers/pinctrl/meson/pinctrl-meson.c
+++ b/drivers/pinctrl/meson/pinctrl-meson.c
@@ -31,6 +31,9 @@
* In some cases the register ranges for pull enable and pull
* direction are the same and thus there are only 3 register ranges.
*
+ * Since Meson G12A SoC, the ao register ranges for gpio, pull enable
+ * and pull direction are the same, so there are only 2 register ranges.
+ *
* For the pull and GPIO configuration every bank uses a contiguous
* set of bits in the register sets described above; the same register
* can be shared by more banks with different offsets.
@@ -488,21 +491,26 @@ static int meson_pinctrl_parse_dt(struct meson_pinctrl *pc,
return PTR_ERR(pc->reg_mux);
}
- pc->reg_pull = meson_map_resource(pc, gpio_np, "pull");
- if (IS_ERR(pc->reg_pull)) {
- dev_err(pc->dev, "pull registers not found\n");
- return PTR_ERR(pc->reg_pull);
+ pc->reg_gpio = meson_map_resource(pc, gpio_np, "gpio");
+ if (IS_ERR(pc->reg_gpio)) {
+ dev_err(pc->dev, "gpio registers not found\n");
+ return PTR_ERR(pc->reg_gpio);
}
+ pc->reg_pull = meson_map_resource(pc, gpio_np, "pull");
+ /* Use gpio region if pull one is not present */
+ if (IS_ERR(pc->reg_pull))
+ pc->reg_pull = pc->reg_gpio;
+
pc->reg_pullen = meson_map_resource(pc, gpio_np, "pull-enable");
/* Use pull region if pull-enable one is not present */
if (IS_ERR(pc->reg_pullen))
pc->reg_pullen = pc->reg_pull;
- pc->reg_gpio = meson_map_resource(pc, gpio_np, "gpio");
- if (IS_ERR(pc->reg_gpio)) {
- dev_err(pc->dev, "gpio registers not found\n");
- return PTR_ERR(pc->reg_gpio);
+ 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;