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pinctrl: renesas: rzg2l: Add support for configuring schmitt-trigger

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Add support for configuring the multiplexed pins as schmitt-trigger
inputs.

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/20241004123658.764557-4-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This commit is contained in:
Lad Prabhakar
2024-10-04 13:36:58 +01:00
committed by Geert Uytterhoeven
parent 9d75b70061
commit 725933a54f
1 changed files with 18 additions and 0 deletions
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drivers/pinctrl/renesas/pinctrl-rzg2l.c
+18
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@@ -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
@@ -1352,6 +1354,15 @@ 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;
@@ -1490,6 +1501,13 @@ 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;