drivers/pinctrl/qcom/pinctrl-eliza.c

Source file repositories/reference/linux-study-clean/drivers/pinctrl/qcom/pinctrl-eliza.c

File Facts

System
Linux kernel
Corpus path
drivers/pinctrl/qcom/pinctrl-eliza.c
Extension
.c
Size
50706 bytes
Lines
1624
Domain
Driver Families
Bucket
drivers/pinctrl
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
 */

#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>

#include "pinctrl-msm.h"

#define REG_SIZE 0x1000
#define PINGROUP(id, f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11)	\
	{					        \
		.grp = PINCTRL_PINGROUP("gpio" #id,	\
			gpio##id##_pins,		\
			ARRAY_SIZE(gpio##id##_pins)),	\
		.funcs = (int[]){			\
			msm_mux_gpio, /* gpio mode */	\
			msm_mux_##f1,			\
			msm_mux_##f2,			\
			msm_mux_##f3,			\
			msm_mux_##f4,			\
			msm_mux_##f5,			\
			msm_mux_##f6,			\
			msm_mux_##f7,			\
			msm_mux_##f8,			\
			msm_mux_##f9,			\
			msm_mux_##f10,			\
			msm_mux_##f11 /* egpio mode */	\
		},					\
		.nfuncs = 12,				\
		.ctl_reg = REG_SIZE * id,		\
		.io_reg = 0x4 + REG_SIZE * id,		\
		.intr_cfg_reg = 0x8 + REG_SIZE * id,	\
		.intr_status_reg = 0xc + REG_SIZE * id,	\
		.mux_bit = 2,			\
		.pull_bit = 0,			\
		.drv_bit = 6,			\
		.egpio_enable = 12,		\
		.egpio_present = 11,		\
		.oe_bit = 9,			\
		.in_bit = 0,			\
		.out_bit = 1,			\
		.intr_enable_bit = 0,		\
		.intr_status_bit = 0,		\
		.intr_wakeup_present_bit = 6,	\
		.intr_wakeup_enable_bit = 7,	\
		.intr_target_bit = 8,		\
		.intr_target_kpss_val = 3,	\
		.intr_raw_status_bit = 4,	\
		.intr_polarity_bit = 1,		\
		.intr_detection_bit = 2,	\
		.intr_detection_width = 2,	\
	}

#define UFS_RESET(pg_name, ctl, io)			\
	{					        \
		.grp = PINCTRL_PINGROUP(#pg_name,	\
			pg_name##_pins,			\
			ARRAY_SIZE(pg_name##_pins)),    \
		.ctl_reg = ctl,				\
		.io_reg = io,				\
		.intr_cfg_reg = 0,			\
		.intr_status_reg = 0,			\
		.mux_bit = -1,				\
		.pull_bit = 3,				\
		.drv_bit = 0,				\
		.oe_bit = -1,				\
		.in_bit = -1,				\
		.out_bit = 0,				\
		.intr_enable_bit = -1,			\
		.intr_status_bit = -1,			\
		.intr_target_bit = -1,			\
		.intr_raw_status_bit = -1,		\
		.intr_polarity_bit = -1,		\
		.intr_detection_bit = -1,		\
		.intr_detection_width = -1,		\
	}

static const struct pinctrl_pin_desc eliza_pins[] = {
	PINCTRL_PIN(0, "GPIO_0"),
	PINCTRL_PIN(1, "GPIO_1"),
	PINCTRL_PIN(2, "GPIO_2"),
	PINCTRL_PIN(3, "GPIO_3"),
	PINCTRL_PIN(4, "GPIO_4"),
	PINCTRL_PIN(5, "GPIO_5"),
	PINCTRL_PIN(6, "GPIO_6"),
	PINCTRL_PIN(7, "GPIO_7"),
	PINCTRL_PIN(8, "GPIO_8"),

Annotation

Implementation Notes