diff options
| author | Guillaume La Roque <glaroque@baylibre.com> | 2019-05-14 10:26:51 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2019-05-23 09:24:46 +0200 |
| commit | 6ea3e3bbef3705225bb675a8c57af58420c23f81 (patch) | |
| tree | 03f98695e86c3f56d5f2a6f36216fa468fba48c1 /drivers/pinctrl/meson/pinctrl-meson.h | |
| parent | 9959d9a747fddfd9e1a37f2e3fc60cbc956aad3a (diff) | |
pinctrl: meson: add support of drive-strength-microamp
drive-strength-microamp is a new feature needed for G12A SoC.
the default DS setting after boot is usually 500uA and it is not enough for
many functions. We need to be able to set the drive strength to reliably
enable things like MMC, I2C, etc ...
Signed-off-by: Guillaume La Roque <glaroque@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/meson/pinctrl-meson.h')
| -rw-r--r-- | drivers/pinctrl/meson/pinctrl-meson.h | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/drivers/pinctrl/meson/pinctrl-meson.h b/drivers/pinctrl/meson/pinctrl-meson.h index 5eaab925f427..cd955fb7c2ce 100644 --- a/drivers/pinctrl/meson/pinctrl-meson.h +++ b/drivers/pinctrl/meson/pinctrl-meson.h @@ -71,10 +71,21 @@ enum meson_reg_type { REG_DIR, REG_OUT, REG_IN, + REG_DS, NUM_REG, }; /** + * enum meson_pinconf_drv - value of drive-strength supported + */ +enum meson_pinconf_drv { + MESON_PINCONF_DRV_500UA, + MESON_PINCONF_DRV_2500UA, + MESON_PINCONF_DRV_3000UA, + MESON_PINCONF_DRV_4000UA, +}; + +/** * struct meson bank * * @name: bank name @@ -132,7 +143,8 @@ struct meson_pinctrl { .num_groups = ARRAY_SIZE(fn ## _groups), \ } -#define BANK(n, f, l, fi, li, per, peb, pr, pb, dr, db, or, ob, ir, ib) \ +#define BANK_DS(n, f, l, fi, li, per, peb, pr, pb, dr, db, or, ob, ir, ib, \ + dsr, dsb) \ { \ .name = n, \ .first = f, \ @@ -145,9 +157,13 @@ struct meson_pinctrl { [REG_DIR] = { dr, db }, \ [REG_OUT] = { or, ob }, \ [REG_IN] = { ir, ib }, \ + [REG_DS] = { dsr, dsb }, \ }, \ } +#define BANK(n, f, l, fi, li, per, peb, pr, pb, dr, db, or, ob, ir, ib) \ + BANK_DS(n, f, l, fi, li, per, peb, pr, pb, dr, db, or, ob, ir, ib, 0, 0) + #define MESON_PIN(x) PINCTRL_PIN(x, #x) /* Common pmx functions */ |