Commit 9d75b700 authored by Lad Prabhakar's avatar Lad Prabhakar Committed by Geert Uytterhoeven
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pinctrl: renesas: rzg2l: Add support for enabling/disabling open-drain outputs 



Add support for enabling and disabling open-drain outputs.

Signed-off-by: default avatarLad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Tested-by: default avatarClaudiu 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: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
parent f07e2b68

drivers/pinctrl/renesas/pinctrl-rzg2l.c

+23 −0
Original line number Diff line number Diff line
@@ -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;