drivers/pinctrl/sunxi/pinctrl-sun50i-a100-r.c
Source file repositories/reference/linux-study-clean/drivers/pinctrl/sunxi/pinctrl-sun50i-a100-r.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/pinctrl/sunxi/pinctrl-sun50i-a100-r.c- Extension
.c- Size
- 3448 bytes
- Lines
- 106
- 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.
- 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.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/module.hlinux/of.hlinux/pinctrl/pinctrl.hlinux/platform_device.hpinctrl-sunxi.h
Detected Declarations
function a100_r_pinctrl_probe
Annotated Snippet
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2020 Yangtao Li <frank@allwinnertech.com>
*
* Based on:
* huangshuosheng <huangshuosheng@allwinnertech.com>
*/
#include <linux/module.h>
#include <linux/of.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/platform_device.h>
#include "pinctrl-sunxi.h"
static const struct sunxi_desc_pin a100_r_pins[] = {
SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 0),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x2, "s_i2c0"), /* SCK */
SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 0)),
SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 1),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x2, "s_i2c0"), /* SDA */
SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 1)),
SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 2),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x2, "s_uart0"), /* TX */
SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 2)),
SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 3),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x2, "s_uart0"), /* RX */
SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 3)),
SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 4),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x2, "s_jtag"), /* MS */
SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 4)),
SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 5),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x2, "s_jtag"), /* CK */
SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 5)),
SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 6),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x2, "s_jtag"), /* DO */
SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 6)),
SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 7),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x2, "s_jtag"), /* DI */
SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 7)),
SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 8),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x2, "s_i2c1"), /* SCK */
SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 8)),
SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 9),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x2, "s_i2c1"), /* SDA */
SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 9)),
SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 10),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x2, "s_pwm"),
SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 10)),
SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 11),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x3, "s_cir"), /* IN */
SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 11)),
};
static const struct sunxi_pinctrl_desc a100_r_pinctrl_data = {
.pins = a100_r_pins,
.npins = ARRAY_SIZE(a100_r_pins),
.pin_base = PL_BASE,
.irq_banks = 1,
.io_bias_cfg_variant = BIAS_VOLTAGE_PIO_POW_MODE_CTL,
};
static int a100_r_pinctrl_probe(struct platform_device *pdev)
{
return sunxi_pinctrl_init(pdev, &a100_r_pinctrl_data);
}
Annotation
- Immediate include surface: `linux/module.h`, `linux/of.h`, `linux/pinctrl/pinctrl.h`, `linux/platform_device.h`, `pinctrl-sunxi.h`.
- Detected declarations: `function a100_r_pinctrl_probe`.
- Atlas domain: Driver Families / drivers/pinctrl.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.