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| author | Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> | 2024-10-04 14:36:57 +0200 |
|---|---|---|
| committer | Geert Uytterhoeven <geert+renesas@glider.be> | 2024-10-14 10:01:45 +0200 |
| commit | 9d75b70061917fbfe3247e2594879e5a14d3e24a (patch) | |
| tree | 670eed6e786782870ae156b01e9b365961f7e4d9 /drivers/pinctrl | |
| parent | dt-bindings: pinctrl: renesas,rzg2l-pinctrl: Allow schmitt and open drain pro... (diff) | |
| download | linux-9d75b70061917fbfe3247e2594879e5a14d3e24a.tar.xz linux-9d75b70061917fbfe3247e2594879e5a14d3e24a.zip | |
pinctrl: renesas: rzg2l: Add support for enabling/disabling open-drain outputs
Add support for enabling and disabling open-drain outputs.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Link: https://lore.kernel.org/20241004123658.764557-3-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/renesas/pinctrl-rzg2l.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/pinctrl/renesas/pinctrl-rzg2l.c b/drivers/pinctrl/renesas/pinctrl-rzg2l.c index 0a32d692628c..8fbb27248160 100644 --- a/drivers/pinctrl/renesas/pinctrl-rzg2l.c +++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c @@ -139,6 +139,7 @@ #define IEN(off) (0x1800 + (off) * 8) #define PUPD(off) (0x1C00 + (off) * 8) #define ISEL(off) (0x2C00 + (off) * 8) +#define NOD(off) (0x3000 + (off) * 8) #define SD_CH(off, ch) ((off) + (ch) * 4) #define ETH_POC(off, ch) ((off) + (ch) * 4) #define QSPI (0x3008) @@ -160,6 +161,7 @@ #define IOLH_MASK 0x03 #define SR_MASK 0x01 #define PUPD_MASK 0x03 +#define NOD_MASK 0x01 #define PM_INPUT 0x1 #define PM_OUTPUT 0x2 @@ -1338,6 +1340,18 @@ static int rzg2l_pinctrl_pinconf_get(struct pinctrl_dev *pctldev, break; } + case PIN_CONFIG_DRIVE_OPEN_DRAIN: + case PIN_CONFIG_DRIVE_PUSH_PULL: + if (!(cfg & PIN_CFG_NOD)) + return -EINVAL; + + arg = rzg2l_read_pin_config(pctrl, NOD(off), bit, NOD_MASK); + if (!arg && param != PIN_CONFIG_DRIVE_PUSH_PULL) + return -EINVAL; + if (arg && param != PIN_CONFIG_DRIVE_OPEN_DRAIN) + return -EINVAL; + break; + case RENESAS_RZV2H_PIN_CONFIG_OUTPUT_IMPEDANCE: if (!(cfg & PIN_CFG_IOLH_RZV2H)) return -EINVAL; @@ -1467,6 +1481,15 @@ static int rzg2l_pinctrl_pinconf_set(struct pinctrl_dev *pctldev, rzg2l_rmw_pin_config(pctrl, IOLH(off), bit, IOLH_MASK, index); break; + case PIN_CONFIG_DRIVE_OPEN_DRAIN: + case PIN_CONFIG_DRIVE_PUSH_PULL: + if (!(cfg & PIN_CFG_NOD)) + return -EINVAL; + + rzg2l_rmw_pin_config(pctrl, NOD(off), bit, NOD_MASK, + param == PIN_CONFIG_DRIVE_OPEN_DRAIN ? 1 : 0); + break; + case RENESAS_RZV2H_PIN_CONFIG_OUTPUT_IMPEDANCE: if (!(cfg & PIN_CFG_IOLH_RZV2H)) return -EINVAL; |