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pinctrl: qcom: spmi-gpio: add support for LV_VIN2 and MV_VIN3 subtypes

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Add support for SPMI PMIC GPIO subtypes GPIO_LV_VIN2 and
GPIO_MV_VIN3.

GPIO_LV_VIN2 GPIOs support two input reference voltages: VIN0 and
VIN1.  These are typically connected to 1.8 V and 1.2 V supplies
respectively.

GPIO_MV_VIN3 GPIOs support three input reference voltages: VIN0,
VIN1, and VIN2.  These are typically connected to Vph, 1.8 V, and
1.2 V supplies respectively.

Signed-off-by: David Collins <quic_collinsd@quicinc.com>
Signed-off-by: Anjelique Melendez <quic_amelende@quicinc.com>
Link: https://lore.kernel.org/r/20220912210624.4527-2-quic_amelende@quicinc.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
David Collins 2022-09-12 14:06:23 -07:00 committed by Linus Walleij
parent 1c2eb18ef6
commit 4af95d0937
1 changed files with 13 additions and 0 deletions
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13
drivers/pinctrl/qcom/pinctrl-spmi-gpio.c
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@ -1,6 +1,7 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2012-2014, 2016-2021 The Linux Foundation. All rights reserved.
* Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved.
*/
#include <linux/gpio/driver.h>
@ -36,6 +37,8 @@
#define PMIC_GPIO_SUBTYPE_GPIOC_8CH 0xd
#define PMIC_GPIO_SUBTYPE_GPIO_LV 0x10
#define PMIC_GPIO_SUBTYPE_GPIO_MV 0x11
#define PMIC_GPIO_SUBTYPE_GPIO_LV_VIN2 0x12
#define PMIC_GPIO_SUBTYPE_GPIO_MV_VIN3 0x13
#define PMIC_MPP_REG_RT_STS 0x10
#define PMIC_MPP_REG_RT_STS_VAL_MASK 0x1
@ -822,6 +825,16 @@ static int pmic_gpio_populate(struct pmic_gpio_state *state,
pad->have_buffer = true;
pad->lv_mv_type = true;
break;
case PMIC_GPIO_SUBTYPE_GPIO_LV_VIN2:
pad->num_sources = 2;
pad->have_buffer = true;
pad->lv_mv_type = true;
break;
case PMIC_GPIO_SUBTYPE_GPIO_MV_VIN3:
pad->num_sources = 3;
pad->have_buffer = true;
pad->lv_mv_type = true;
break;
default:
dev_err(state->dev, "unknown GPIO type 0x%x\n", subtype);
return -ENODEV;