From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx> Add support for configuring the multiplexed pins as open-drain outputs. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx> --- drivers/pinctrl/renesas/pinctrl-rzg2l.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/pinctrl/renesas/pinctrl-rzg2l.c b/drivers/pinctrl/renesas/pinctrl-rzg2l.c index 5a403915fed2..42181cc877fe 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 @@ -1337,6 +1339,15 @@ static int rzg2l_pinctrl_pinconf_get(struct pinctrl_dev *pctldev, break; } + case PIN_CONFIG_DRIVE_OPEN_DRAIN: + if (!(cfg & PIN_CFG_NOD)) + return -EINVAL; + + arg = rzg2l_read_pin_config(pctrl, NOD(off), bit, NOD_MASK); + if (!arg) + return -EINVAL; + break; + case RENESAS_RZV2H_PIN_CONFIG_OUTPUT_IMPEDANCE: if (!(cfg & PIN_CFG_IOLH_RZV2H)) return -EINVAL; @@ -1466,6 +1477,13 @@ 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: + if (!(cfg & PIN_CFG_NOD)) + return -EINVAL; + + rzg2l_rmw_pin_config(pctrl, NOD(off), bit, NOD_MASK, 1); + break; + case RENESAS_RZV2H_PIN_CONFIG_OUTPUT_IMPEDANCE: if (!(cfg & PIN_CFG_IOLH_RZV2H)) return -EINVAL; -- 2.34.1
