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linux/drivers/pinctrl/freescale/pinctrl-imx7ulp.c
A.s. Dong dbffda08f0 pinctrl: fsl: imx7ulp: change to use imx legacy binding 
We already had an earlier conclusion that all new i.MX Socs will keep
using the legacy i.MX Pinctrl bindings instead of generic pin config.
However, MX7ULP generic pin config binding support has already been in
tree before that time. Per SoC maintainers' suggestions, in order to
get a better consistency for all i.MX devices, we'd like to go back to
imx legacy binding for MX7ULP as well.

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: linux-gpio@vger.kernel.org
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-11-09 10:54:29 +01:00

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8.8 KiB
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// SPDX-License-Identifier: GPL-2.0
//
// Copyright (C) 2016 Freescale Semiconductor, Inc.
// Copyright (C) 2017 NXP
//
// Author: Dong Aisheng <aisheng.dong@nxp.com>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/pinctrl/pinctrl.h>
#include "pinctrl-imx.h"
enum imx7ulp_pads {
IMX7ULP_PAD_PTC0 = 0,
IMX7ULP_PAD_PTC1,
IMX7ULP_PAD_PTC2,
IMX7ULP_PAD_PTC3,
IMX7ULP_PAD_PTC4,
IMX7ULP_PAD_PTC5,
IMX7ULP_PAD_PTC6,
IMX7ULP_PAD_PTC7,
IMX7ULP_PAD_PTC8,
IMX7ULP_PAD_PTC9,
IMX7ULP_PAD_PTC10,
IMX7ULP_PAD_PTC11,
IMX7ULP_PAD_PTC12,
IMX7ULP_PAD_PTC13,
IMX7ULP_PAD_PTC14,
IMX7ULP_PAD_PTC15,
IMX7ULP_PAD_PTC16,
IMX7ULP_PAD_PTC17,
IMX7ULP_PAD_PTC18,
IMX7ULP_PAD_PTC19,
IMX7ULP_PAD_RESERVE0,
IMX7ULP_PAD_RESERVE1,
IMX7ULP_PAD_RESERVE2,
IMX7ULP_PAD_RESERVE3,
IMX7ULP_PAD_RESERVE4,
IMX7ULP_PAD_RESERVE5,
IMX7ULP_PAD_RESERVE6,
IMX7ULP_PAD_RESERVE7,
IMX7ULP_PAD_RESERVE8,
IMX7ULP_PAD_RESERVE9,
IMX7ULP_PAD_RESERVE10,
IMX7ULP_PAD_RESERVE11,
IMX7ULP_PAD_PTD0,
IMX7ULP_PAD_PTD1,
IMX7ULP_PAD_PTD2,
IMX7ULP_PAD_PTD3,
IMX7ULP_PAD_PTD4,
IMX7ULP_PAD_PTD5,
IMX7ULP_PAD_PTD6,
IMX7ULP_PAD_PTD7,
IMX7ULP_PAD_PTD8,
IMX7ULP_PAD_PTD9,
IMX7ULP_PAD_PTD10,
IMX7ULP_PAD_PTD11,
IMX7ULP_PAD_RESERVE12,
IMX7ULP_PAD_RESERVE13,
IMX7ULP_PAD_RESERVE14,
IMX7ULP_PAD_RESERVE15,
IMX7ULP_PAD_RESERVE16,
IMX7ULP_PAD_RESERVE17,
IMX7ULP_PAD_RESERVE18,
IMX7ULP_PAD_RESERVE19,
IMX7ULP_PAD_RESERVE20,
IMX7ULP_PAD_RESERVE21,
IMX7ULP_PAD_RESERVE22,
IMX7ULP_PAD_RESERVE23,
IMX7ULP_PAD_RESERVE24,
IMX7ULP_PAD_RESERVE25,
IMX7ULP_PAD_RESERVE26,
IMX7ULP_PAD_RESERVE27,
IMX7ULP_PAD_RESERVE28,
IMX7ULP_PAD_RESERVE29,
IMX7ULP_PAD_RESERVE30,
IMX7ULP_PAD_RESERVE31,
IMX7ULP_PAD_PTE0,
IMX7ULP_PAD_PTE1,
IMX7ULP_PAD_PTE2,
IMX7ULP_PAD_PTE3,
IMX7ULP_PAD_PTE4,
IMX7ULP_PAD_PTE5,
IMX7ULP_PAD_PTE6,
IMX7ULP_PAD_PTE7,
IMX7ULP_PAD_PTE8,
IMX7ULP_PAD_PTE9,
IMX7ULP_PAD_PTE10,
IMX7ULP_PAD_PTE11,
IMX7ULP_PAD_PTE12,
IMX7ULP_PAD_PTE13,
IMX7ULP_PAD_PTE14,
IMX7ULP_PAD_PTE15,
IMX7ULP_PAD_RESERVE32,
IMX7ULP_PAD_RESERVE33,
IMX7ULP_PAD_RESERVE34,
IMX7ULP_PAD_RESERVE35,
IMX7ULP_PAD_RESERVE36,
IMX7ULP_PAD_RESERVE37,
IMX7ULP_PAD_RESERVE38,
IMX7ULP_PAD_RESERVE39,
IMX7ULP_PAD_RESERVE40,
IMX7ULP_PAD_RESERVE41,
IMX7ULP_PAD_RESERVE42,
IMX7ULP_PAD_RESERVE43,
IMX7ULP_PAD_RESERVE44,
IMX7ULP_PAD_RESERVE45,
IMX7ULP_PAD_RESERVE46,
IMX7ULP_PAD_RESERVE47,
IMX7ULP_PAD_PTF0,
IMX7ULP_PAD_PTF1,
IMX7ULP_PAD_PTF2,
IMX7ULP_PAD_PTF3,
IMX7ULP_PAD_PTF4,
IMX7ULP_PAD_PTF5,
IMX7ULP_PAD_PTF6,
IMX7ULP_PAD_PTF7,
IMX7ULP_PAD_PTF8,
IMX7ULP_PAD_PTF9,
IMX7ULP_PAD_PTF10,
IMX7ULP_PAD_PTF11,
IMX7ULP_PAD_PTF12,
IMX7ULP_PAD_PTF13,
IMX7ULP_PAD_PTF14,
IMX7ULP_PAD_PTF15,
IMX7ULP_PAD_PTF16,
IMX7ULP_PAD_PTF17,
IMX7ULP_PAD_PTF18,
IMX7ULP_PAD_PTF19,
};
/* Pad names for the pinmux subsystem */
static const struct pinctrl_pin_desc imx7ulp_pinctrl_pads[] = {
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC0),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC1),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC2),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC3),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC4),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC5),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC6),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC7),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC8),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC9),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC10),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC11),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC12),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC13),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC14),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC15),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC16),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC17),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC18),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC19),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE0),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE1),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE2),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE3),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE4),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE5),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE6),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE7),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE8),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE9),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE10),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE11),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTD0),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTD1),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTD2),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTD3),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTD4),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTD5),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTD6),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTD7),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTD8),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTD9),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTD10),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTD11),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE12),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE13),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE14),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE15),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE16),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE17),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE18),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE19),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE20),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE21),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE22),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE23),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE24),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE25),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE26),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE27),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE28),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE29),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE30),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE31),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE0),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE1),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE2),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE3),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE4),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE5),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE6),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE7),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE8),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE9),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE10),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE11),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE12),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE13),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE14),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE15),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE32),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE33),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE34),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE35),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE36),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE37),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE38),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE39),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE40),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE41),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE42),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE43),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE44),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE45),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE46),
IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE47),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF0),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF1),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF2),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF3),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF4),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF5),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF6),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF7),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF8),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF9),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF10),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF11),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF12),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF13),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF14),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF15),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF16),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF17),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF18),
IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF19),
};
#define BM_OBE_ENABLED BIT(17)
#define BM_IBE_ENABLED BIT(16)
#define BM_MUX_MODE 0xf00
#define BP_MUX_MODE 8
static int imx7ulp_pmx_gpio_set_direction(struct pinctrl_dev *pctldev,
struct pinctrl_gpio_range *range,
unsigned offset, bool input)
{
struct imx_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev);
const struct imx_pin_reg *pin_reg;
u32 reg;
pin_reg = &ipctl->pin_regs[offset];
if (pin_reg->mux_reg == -1)
return -EINVAL;
reg = readl(ipctl->base + pin_reg->mux_reg);
if (input)
reg = (reg & ~BM_OBE_ENABLED) | BM_IBE_ENABLED;
else
reg = (reg & ~BM_IBE_ENABLED) | BM_OBE_ENABLED;
writel(reg, ipctl->base + pin_reg->mux_reg);
return 0;
}
static const struct imx_pinctrl_soc_info imx7ulp_pinctrl_info = {
.pins = imx7ulp_pinctrl_pads,
.npins = ARRAY_SIZE(imx7ulp_pinctrl_pads),
.flags = ZERO_OFFSET_VALID | SHARE_MUX_CONF_REG,
.gpio_set_direction = imx7ulp_pmx_gpio_set_direction,
.mux_mask = BM_MUX_MODE,
.mux_shift = BP_MUX_MODE,
};
static const struct of_device_id imx7ulp_pinctrl_of_match[] = {
{ .compatible = "fsl,imx7ulp-iomuxc1", },
{ /* sentinel */ }
};
static int imx7ulp_pinctrl_probe(struct platform_device *pdev)
{
return imx_pinctrl_probe(pdev, &imx7ulp_pinctrl_info);
}
static struct platform_driver imx7ulp_pinctrl_driver = {
.driver = {
.name = "imx7ulp-pinctrl",
.of_match_table = of_match_ptr(imx7ulp_pinctrl_of_match),
.suppress_bind_attrs = true,
},
.probe = imx7ulp_pinctrl_probe,
};
static int __init imx7ulp_pinctrl_init(void)
{
return platform_driver_register(&imx7ulp_pinctrl_driver);
}
arch_initcall(imx7ulp_pinctrl_init);
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