From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx> Add support for configuring the multiplexed pins as schmitt-trigger inputs. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx> Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx> --- v1->v2 - Included RB tag --- 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 8d576cc74003..13708c71f938 100644 --- a/drivers/pinctrl/renesas/pinctrl-rzg2l.c +++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c @@ -140,6 +140,7 @@ #define PUPD(off) (0x1C00 + (off) * 8) #define ISEL(off) (0x2C00 + (off) * 8) #define NOD(off) (0x3000 + (off) * 8) +#define SMT(off) (0x3400 + (off) * 8) #define SD_CH(off, ch) ((off) + (ch) * 4) #define ETH_POC(off, ch) ((off) + (ch) * 4) #define QSPI (0x3008) @@ -162,6 +163,7 @@ #define SR_MASK 0x01 #define PUPD_MASK 0x03 #define NOD_MASK 0x01 +#define SMT_MASK 0x01 #define PM_INPUT 0x1 #define PM_OUTPUT 0x2 @@ -1351,6 +1353,15 @@ static int rzg2l_pinctrl_pinconf_get(struct pinctrl_dev *pctldev, return -EINVAL; break; + case PIN_CONFIG_INPUT_SCHMITT_ENABLE: + if (!(cfg & PIN_CFG_SMT)) + return -EINVAL; + + arg = rzg2l_read_pin_config(pctrl, SMT(off), bit, SMT_MASK); + if (!arg) + return -EINVAL; + break; + case RENESAS_RZV2H_PIN_CONFIG_OUTPUT_IMPEDANCE: if (!(cfg & PIN_CFG_IOLH_RZV2H)) return -EINVAL; @@ -1489,6 +1500,13 @@ static int rzg2l_pinctrl_pinconf_set(struct pinctrl_dev *pctldev, param == PIN_CONFIG_DRIVE_OPEN_DRAIN ? 1 : 0); break; + case PIN_CONFIG_INPUT_SCHMITT_ENABLE: + if (!(cfg & PIN_CFG_SMT)) + return -EINVAL; + + rzg2l_rmw_pin_config(pctrl, SMT(off), bit, SMT_MASK, arg); + break; + case RENESAS_RZV2H_PIN_CONFIG_OUTPUT_IMPEDANCE: if (!(cfg & PIN_CFG_IOLH_RZV2H)) return -EINVAL; -- 2.43.0
