diff options
Diffstat (limited to 'drivers/pinctrl/meson/pinctrl-meson.c')
| -rw-r--r-- | drivers/pinctrl/meson/pinctrl-meson.c | 24 |
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; |