drivers/pinctrl/qcom/pinctrl-sc8280xp.c

Source file repositories/reference/linux-study-clean/drivers/pinctrl/qcom/pinctrl-sc8280xp.c

File Facts

System
Linux kernel
Corpus path
drivers/pinctrl/qcom/pinctrl-sc8280xp.c
Extension
.c
Size
57452 bytes
Lines
1942
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) 2020-2021, The Linux Foundation. All rights reserved.
 * Copyright (c) 2022, Linaro Ltd.
 */

#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)	\
	{						\
		.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,			\
		},					\
		.nfuncs = 8,				\
		.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,			\
		.oe_bit = 9,			\
		.in_bit = 0,			\
		.out_bit = 1,			\
		.egpio_enable = 12,		\
		.egpio_present = 11,		\
		.intr_enable_bit = 0,		\
		.intr_status_bit = 0,		\
		.intr_target_bit = 5,		\
		.intr_target_kpss_val = 3,	\
		.intr_raw_status_bit = 4,	\
		.intr_polarity_bit = 1,		\
		.intr_detection_bit = 2,	\
		.intr_detection_width = 2,	\
	}

#define SDC_QDSD_PINGROUP(pg_name, ctl, pull, drv)	\
	{						\
		.grp = PINCTRL_PINGROUP(#pg_name, 	\
			pg_name##_pins, 		\
			ARRAY_SIZE(pg_name##_pins)),	\
		.ctl_reg = ctl,				\
		.io_reg = 0,				\
		.intr_cfg_reg = 0,			\
		.intr_status_reg = 0,			\
		.mux_bit = -1,				\
		.pull_bit = pull,			\
		.drv_bit = drv,				\
		.oe_bit = -1,				\
		.in_bit = -1,				\
		.out_bit = -1,				\
		.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,		\
	}

#define UFS_RESET(pg_name, offset)				\
	{						\
		.grp = PINCTRL_PINGROUP(#pg_name, 	\
			pg_name##_pins, 		\
			ARRAY_SIZE(pg_name##_pins)),	\
		.ctl_reg = offset,			\
		.io_reg = offset + 0x4,			\
		.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,				\

Annotation

Implementation Notes