linux/drivers/pinctrl/samsung/pinctrl-exynos-arm64.c
Krzysztof Kozlowski cfa76ddf5b pinctrl: samsung: Split Exynos drivers per ARMv7 and ARMv8
Exynos pinctrl drivers contain pretty big per-SoC data structures.  The
pinctrl-exynos object file contained code and data for both ARMv7 and
ARMv8 SoCs thus it grew big.  There will not be a shared image between
ARMv7 and ARMv8 so there is no need to combine all of this into one
driver.

Splitting the data allows to make it more granular (e.g. code related to
ARMv8 Exynos is self-contained), slightly speed up the compilation and
reduce the effective size of compiled kernel.

The common data structures and functions reside still in existing
pinctrl-exynos.c.  Only the SoC-specific parts were moved out to new
files.  Except marking few functions non-static and adding them to
header, there were no functional changes in the code.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Tested-by: Alim Akhtar <alim.akhtar@samsung.com>
2017-06-07 20:40:47 +02:00

400 lines
15 KiB
C

/*
* Exynos ARMv8 specific support for Samsung pinctrl/gpiolib driver
* with eint support.
*
* Copyright (c) 2012 Samsung Electronics Co., Ltd.
* http://www.samsung.com
* Copyright (c) 2012 Linaro Ltd
* http://www.linaro.org
* Copyright (c) 2017 Krzysztof Kozlowski <krzk@kernel.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This file contains the Samsung Exynos specific information required by the
* the Samsung pinctrl/gpiolib driver. It also includes the implementation of
* external gpio and wakeup interrupt support.
*/
#include <linux/slab.h>
#include <linux/soc/samsung/exynos-regs-pmu.h>
#include "pinctrl-samsung.h"
#include "pinctrl-exynos.h"
static const struct samsung_pin_bank_type bank_type_off = {
.fld_width = { 4, 1, 2, 2, 2, 2, },
.reg_offset = { 0x00, 0x04, 0x08, 0x0c, 0x10, 0x14, },
};
static const struct samsung_pin_bank_type bank_type_alive = {
.fld_width = { 4, 1, 2, 2, },
.reg_offset = { 0x00, 0x04, 0x08, 0x0c, },
};
/* Exynos5433 has the 4bit widths for PINCFG_TYPE_DRV bitfields. */
static const struct samsung_pin_bank_type exynos5433_bank_type_off = {
.fld_width = { 4, 1, 2, 4, 2, 2, },
.reg_offset = { 0x00, 0x04, 0x08, 0x0c, 0x10, 0x14, },
};
static const struct samsung_pin_bank_type exynos5433_bank_type_alive = {
.fld_width = { 4, 1, 2, 4, },
.reg_offset = { 0x00, 0x04, 0x08, 0x0c, },
};
/* Pad retention control code for accessing PMU regmap */
static atomic_t exynos_shared_retention_refcnt;
/* pin banks of exynos5433 pin-controller - ALIVE */
static const struct samsung_pin_bank_data exynos5433_pin_banks0[] __initconst = {
EXYNOS5433_PIN_BANK_EINTW(8, 0x000, "gpa0", 0x00),
EXYNOS5433_PIN_BANK_EINTW(8, 0x020, "gpa1", 0x04),
EXYNOS5433_PIN_BANK_EINTW(8, 0x040, "gpa2", 0x08),
EXYNOS5433_PIN_BANK_EINTW(8, 0x060, "gpa3", 0x0c),
EXYNOS5433_PIN_BANK_EINTW_EXT(8, 0x020, "gpf1", 0x1004, 1),
EXYNOS5433_PIN_BANK_EINTW_EXT(4, 0x040, "gpf2", 0x1008, 1),
EXYNOS5433_PIN_BANK_EINTW_EXT(4, 0x060, "gpf3", 0x100c, 1),
EXYNOS5433_PIN_BANK_EINTW_EXT(8, 0x080, "gpf4", 0x1010, 1),
EXYNOS5433_PIN_BANK_EINTW_EXT(8, 0x0a0, "gpf5", 0x1014, 1),
};
/* pin banks of exynos5433 pin-controller - AUD */
static const struct samsung_pin_bank_data exynos5433_pin_banks1[] __initconst = {
EXYNOS5433_PIN_BANK_EINTG(7, 0x000, "gpz0", 0x00),
EXYNOS5433_PIN_BANK_EINTG(4, 0x020, "gpz1", 0x04),
};
/* pin banks of exynos5433 pin-controller - CPIF */
static const struct samsung_pin_bank_data exynos5433_pin_banks2[] __initconst = {
EXYNOS5433_PIN_BANK_EINTG(2, 0x000, "gpv6", 0x00),
};
/* pin banks of exynos5433 pin-controller - eSE */
static const struct samsung_pin_bank_data exynos5433_pin_banks3[] __initconst = {
EXYNOS5433_PIN_BANK_EINTG(3, 0x000, "gpj2", 0x00),
};
/* pin banks of exynos5433 pin-controller - FINGER */
static const struct samsung_pin_bank_data exynos5433_pin_banks4[] __initconst = {
EXYNOS5433_PIN_BANK_EINTG(4, 0x000, "gpd5", 0x00),
};
/* pin banks of exynos5433 pin-controller - FSYS */
static const struct samsung_pin_bank_data exynos5433_pin_banks5[] __initconst = {
EXYNOS5433_PIN_BANK_EINTG(6, 0x000, "gph1", 0x00),
EXYNOS5433_PIN_BANK_EINTG(7, 0x020, "gpr4", 0x04),
EXYNOS5433_PIN_BANK_EINTG(5, 0x040, "gpr0", 0x08),
EXYNOS5433_PIN_BANK_EINTG(8, 0x060, "gpr1", 0x0c),
EXYNOS5433_PIN_BANK_EINTG(2, 0x080, "gpr2", 0x10),
EXYNOS5433_PIN_BANK_EINTG(8, 0x0a0, "gpr3", 0x14),
};
/* pin banks of exynos5433 pin-controller - IMEM */
static const struct samsung_pin_bank_data exynos5433_pin_banks6[] __initconst = {
EXYNOS5433_PIN_BANK_EINTG(8, 0x000, "gpf0", 0x00),
};
/* pin banks of exynos5433 pin-controller - NFC */
static const struct samsung_pin_bank_data exynos5433_pin_banks7[] __initconst = {
EXYNOS5433_PIN_BANK_EINTG(3, 0x000, "gpj0", 0x00),
};
/* pin banks of exynos5433 pin-controller - PERIC */
static const struct samsung_pin_bank_data exynos5433_pin_banks8[] __initconst = {
EXYNOS5433_PIN_BANK_EINTG(6, 0x000, "gpv7", 0x00),
EXYNOS5433_PIN_BANK_EINTG(5, 0x020, "gpb0", 0x04),
EXYNOS5433_PIN_BANK_EINTG(8, 0x040, "gpc0", 0x08),
EXYNOS5433_PIN_BANK_EINTG(2, 0x060, "gpc1", 0x0c),
EXYNOS5433_PIN_BANK_EINTG(6, 0x080, "gpc2", 0x10),
EXYNOS5433_PIN_BANK_EINTG(8, 0x0a0, "gpc3", 0x14),
EXYNOS5433_PIN_BANK_EINTG(2, 0x0c0, "gpg0", 0x18),
EXYNOS5433_PIN_BANK_EINTG(4, 0x0e0, "gpd0", 0x1c),
EXYNOS5433_PIN_BANK_EINTG(6, 0x100, "gpd1", 0x20),
EXYNOS5433_PIN_BANK_EINTG(8, 0x120, "gpd2", 0x24),
EXYNOS5433_PIN_BANK_EINTG(5, 0x140, "gpd4", 0x28),
EXYNOS5433_PIN_BANK_EINTG(2, 0x160, "gpd8", 0x2c),
EXYNOS5433_PIN_BANK_EINTG(7, 0x180, "gpd6", 0x30),
EXYNOS5433_PIN_BANK_EINTG(3, 0x1a0, "gpd7", 0x34),
EXYNOS5433_PIN_BANK_EINTG(5, 0x1c0, "gpg1", 0x38),
EXYNOS5433_PIN_BANK_EINTG(2, 0x1e0, "gpg2", 0x3c),
EXYNOS5433_PIN_BANK_EINTG(8, 0x200, "gpg3", 0x40),
};
/* pin banks of exynos5433 pin-controller - TOUCH */
static const struct samsung_pin_bank_data exynos5433_pin_banks9[] __initconst = {
EXYNOS5433_PIN_BANK_EINTG(3, 0x000, "gpj1", 0x00),
};
/* PMU pin retention groups registers for Exynos5433 (without audio & fsys) */
static const u32 exynos5433_retention_regs[] = {
EXYNOS5433_PAD_RETENTION_TOP_OPTION,
EXYNOS5433_PAD_RETENTION_UART_OPTION,
EXYNOS5433_PAD_RETENTION_EBIA_OPTION,
EXYNOS5433_PAD_RETENTION_EBIB_OPTION,
EXYNOS5433_PAD_RETENTION_SPI_OPTION,
EXYNOS5433_PAD_RETENTION_MIF_OPTION,
EXYNOS5433_PAD_RETENTION_USBXTI_OPTION,
EXYNOS5433_PAD_RETENTION_BOOTLDO_OPTION,
EXYNOS5433_PAD_RETENTION_UFS_OPTION,
EXYNOS5433_PAD_RETENTION_FSYSGENIO_OPTION,
};
static const struct samsung_retention_data exynos5433_retention_data __initconst = {
.regs = exynos5433_retention_regs,
.nr_regs = ARRAY_SIZE(exynos5433_retention_regs),
.value = EXYNOS_WAKEUP_FROM_LOWPWR,
.refcnt = &exynos_shared_retention_refcnt,
.init = exynos_retention_init,
};
/* PMU retention control for audio pins can be tied to audio pin bank */
static const u32 exynos5433_audio_retention_regs[] = {
EXYNOS5433_PAD_RETENTION_AUD_OPTION,
};
static const struct samsung_retention_data exynos5433_audio_retention_data __initconst = {
.regs = exynos5433_audio_retention_regs,
.nr_regs = ARRAY_SIZE(exynos5433_audio_retention_regs),
.value = EXYNOS_WAKEUP_FROM_LOWPWR,
.init = exynos_retention_init,
};
/* PMU retention control for mmc pins can be tied to fsys pin bank */
static const u32 exynos5433_fsys_retention_regs[] = {
EXYNOS5433_PAD_RETENTION_MMC0_OPTION,
EXYNOS5433_PAD_RETENTION_MMC1_OPTION,
EXYNOS5433_PAD_RETENTION_MMC2_OPTION,
};
static const struct samsung_retention_data exynos5433_fsys_retention_data __initconst = {
.regs = exynos5433_fsys_retention_regs,
.nr_regs = ARRAY_SIZE(exynos5433_fsys_retention_regs),
.value = EXYNOS_WAKEUP_FROM_LOWPWR,
.init = exynos_retention_init,
};
/*
* Samsung pinctrl driver data for Exynos5433 SoC. Exynos5433 SoC includes
* ten gpio/pin-mux/pinconfig controllers.
*/
const struct samsung_pin_ctrl exynos5433_pin_ctrl[] __initconst = {
{
/* pin-controller instance 0 data */
.pin_banks = exynos5433_pin_banks0,
.nr_banks = ARRAY_SIZE(exynos5433_pin_banks0),
.eint_wkup_init = exynos_eint_wkup_init,
.suspend = exynos_pinctrl_suspend,
.resume = exynos_pinctrl_resume,
.nr_ext_resources = 1,
.retention_data = &exynos5433_retention_data,
}, {
/* pin-controller instance 1 data */
.pin_banks = exynos5433_pin_banks1,
.nr_banks = ARRAY_SIZE(exynos5433_pin_banks1),
.eint_gpio_init = exynos_eint_gpio_init,
.suspend = exynos_pinctrl_suspend,
.resume = exynos_pinctrl_resume,
.retention_data = &exynos5433_audio_retention_data,
}, {
/* pin-controller instance 2 data */
.pin_banks = exynos5433_pin_banks2,
.nr_banks = ARRAY_SIZE(exynos5433_pin_banks2),
.eint_gpio_init = exynos_eint_gpio_init,
.suspend = exynos_pinctrl_suspend,
.resume = exynos_pinctrl_resume,
.retention_data = &exynos5433_retention_data,
}, {
/* pin-controller instance 3 data */
.pin_banks = exynos5433_pin_banks3,
.nr_banks = ARRAY_SIZE(exynos5433_pin_banks3),
.eint_gpio_init = exynos_eint_gpio_init,
.suspend = exynos_pinctrl_suspend,
.resume = exynos_pinctrl_resume,
.retention_data = &exynos5433_retention_data,
}, {
/* pin-controller instance 4 data */
.pin_banks = exynos5433_pin_banks4,
.nr_banks = ARRAY_SIZE(exynos5433_pin_banks4),
.eint_gpio_init = exynos_eint_gpio_init,
.suspend = exynos_pinctrl_suspend,
.resume = exynos_pinctrl_resume,
.retention_data = &exynos5433_retention_data,
}, {
/* pin-controller instance 5 data */
.pin_banks = exynos5433_pin_banks5,
.nr_banks = ARRAY_SIZE(exynos5433_pin_banks5),
.eint_gpio_init = exynos_eint_gpio_init,
.suspend = exynos_pinctrl_suspend,
.resume = exynos_pinctrl_resume,
.retention_data = &exynos5433_fsys_retention_data,
}, {
/* pin-controller instance 6 data */
.pin_banks = exynos5433_pin_banks6,
.nr_banks = ARRAY_SIZE(exynos5433_pin_banks6),
.eint_gpio_init = exynos_eint_gpio_init,
.suspend = exynos_pinctrl_suspend,
.resume = exynos_pinctrl_resume,
.retention_data = &exynos5433_retention_data,
}, {
/* pin-controller instance 7 data */
.pin_banks = exynos5433_pin_banks7,
.nr_banks = ARRAY_SIZE(exynos5433_pin_banks7),
.eint_gpio_init = exynos_eint_gpio_init,
.suspend = exynos_pinctrl_suspend,
.resume = exynos_pinctrl_resume,
.retention_data = &exynos5433_retention_data,
}, {
/* pin-controller instance 8 data */
.pin_banks = exynos5433_pin_banks8,
.nr_banks = ARRAY_SIZE(exynos5433_pin_banks8),
.eint_gpio_init = exynos_eint_gpio_init,
.suspend = exynos_pinctrl_suspend,
.resume = exynos_pinctrl_resume,
.retention_data = &exynos5433_retention_data,
}, {
/* pin-controller instance 9 data */
.pin_banks = exynos5433_pin_banks9,
.nr_banks = ARRAY_SIZE(exynos5433_pin_banks9),
.eint_gpio_init = exynos_eint_gpio_init,
.suspend = exynos_pinctrl_suspend,
.resume = exynos_pinctrl_resume,
.retention_data = &exynos5433_retention_data,
},
};
/* pin banks of exynos7 pin-controller - ALIVE */
static const struct samsung_pin_bank_data exynos7_pin_banks0[] __initconst = {
EXYNOS_PIN_BANK_EINTW(8, 0x000, "gpa0", 0x00),
EXYNOS_PIN_BANK_EINTW(8, 0x020, "gpa1", 0x04),
EXYNOS_PIN_BANK_EINTW(8, 0x040, "gpa2", 0x08),
EXYNOS_PIN_BANK_EINTW(8, 0x060, "gpa3", 0x0c),
};
/* pin banks of exynos7 pin-controller - BUS0 */
static const struct samsung_pin_bank_data exynos7_pin_banks1[] __initconst = {
EXYNOS_PIN_BANK_EINTG(5, 0x000, "gpb0", 0x00),
EXYNOS_PIN_BANK_EINTG(8, 0x020, "gpc0", 0x04),
EXYNOS_PIN_BANK_EINTG(2, 0x040, "gpc1", 0x08),
EXYNOS_PIN_BANK_EINTG(6, 0x060, "gpc2", 0x0c),
EXYNOS_PIN_BANK_EINTG(8, 0x080, "gpc3", 0x10),
EXYNOS_PIN_BANK_EINTG(4, 0x0a0, "gpd0", 0x14),
EXYNOS_PIN_BANK_EINTG(6, 0x0c0, "gpd1", 0x18),
EXYNOS_PIN_BANK_EINTG(8, 0x0e0, "gpd2", 0x1c),
EXYNOS_PIN_BANK_EINTG(5, 0x100, "gpd4", 0x20),
EXYNOS_PIN_BANK_EINTG(4, 0x120, "gpd5", 0x24),
EXYNOS_PIN_BANK_EINTG(6, 0x140, "gpd6", 0x28),
EXYNOS_PIN_BANK_EINTG(3, 0x160, "gpd7", 0x2c),
EXYNOS_PIN_BANK_EINTG(2, 0x180, "gpd8", 0x30),
EXYNOS_PIN_BANK_EINTG(2, 0x1a0, "gpg0", 0x34),
EXYNOS_PIN_BANK_EINTG(4, 0x1c0, "gpg3", 0x38),
};
/* pin banks of exynos7 pin-controller - NFC */
static const struct samsung_pin_bank_data exynos7_pin_banks2[] __initconst = {
EXYNOS_PIN_BANK_EINTG(3, 0x000, "gpj0", 0x00),
};
/* pin banks of exynos7 pin-controller - TOUCH */
static const struct samsung_pin_bank_data exynos7_pin_banks3[] __initconst = {
EXYNOS_PIN_BANK_EINTG(3, 0x000, "gpj1", 0x00),
};
/* pin banks of exynos7 pin-controller - FF */
static const struct samsung_pin_bank_data exynos7_pin_banks4[] __initconst = {
EXYNOS_PIN_BANK_EINTG(4, 0x000, "gpg4", 0x00),
};
/* pin banks of exynos7 pin-controller - ESE */
static const struct samsung_pin_bank_data exynos7_pin_banks5[] __initconst = {
EXYNOS_PIN_BANK_EINTG(5, 0x000, "gpv7", 0x00),
};
/* pin banks of exynos7 pin-controller - FSYS0 */
static const struct samsung_pin_bank_data exynos7_pin_banks6[] __initconst = {
EXYNOS_PIN_BANK_EINTG(7, 0x000, "gpr4", 0x00),
};
/* pin banks of exynos7 pin-controller - FSYS1 */
static const struct samsung_pin_bank_data exynos7_pin_banks7[] __initconst = {
EXYNOS_PIN_BANK_EINTG(4, 0x000, "gpr0", 0x00),
EXYNOS_PIN_BANK_EINTG(8, 0x020, "gpr1", 0x04),
EXYNOS_PIN_BANK_EINTG(5, 0x040, "gpr2", 0x08),
EXYNOS_PIN_BANK_EINTG(8, 0x060, "gpr3", 0x0c),
};
/* pin banks of exynos7 pin-controller - BUS1 */
static const struct samsung_pin_bank_data exynos7_pin_banks8[] __initconst = {
EXYNOS_PIN_BANK_EINTG(8, 0x020, "gpf0", 0x00),
EXYNOS_PIN_BANK_EINTG(8, 0x040, "gpf1", 0x04),
EXYNOS_PIN_BANK_EINTG(4, 0x060, "gpf2", 0x08),
EXYNOS_PIN_BANK_EINTG(5, 0x080, "gpf3", 0x0c),
EXYNOS_PIN_BANK_EINTG(8, 0x0a0, "gpf4", 0x10),
EXYNOS_PIN_BANK_EINTG(8, 0x0c0, "gpf5", 0x14),
EXYNOS_PIN_BANK_EINTG(5, 0x0e0, "gpg1", 0x18),
EXYNOS_PIN_BANK_EINTG(5, 0x100, "gpg2", 0x1c),
EXYNOS_PIN_BANK_EINTG(6, 0x120, "gph1", 0x20),
EXYNOS_PIN_BANK_EINTG(3, 0x140, "gpv6", 0x24),
};
static const struct samsung_pin_bank_data exynos7_pin_banks9[] __initconst = {
EXYNOS_PIN_BANK_EINTG(7, 0x000, "gpz0", 0x00),
EXYNOS_PIN_BANK_EINTG(4, 0x020, "gpz1", 0x04),
};
const struct samsung_pin_ctrl exynos7_pin_ctrl[] __initconst = {
{
/* pin-controller instance 0 Alive data */
.pin_banks = exynos7_pin_banks0,
.nr_banks = ARRAY_SIZE(exynos7_pin_banks0),
.eint_wkup_init = exynos_eint_wkup_init,
}, {
/* pin-controller instance 1 BUS0 data */
.pin_banks = exynos7_pin_banks1,
.nr_banks = ARRAY_SIZE(exynos7_pin_banks1),
.eint_gpio_init = exynos_eint_gpio_init,
}, {
/* pin-controller instance 2 NFC data */
.pin_banks = exynos7_pin_banks2,
.nr_banks = ARRAY_SIZE(exynos7_pin_banks2),
.eint_gpio_init = exynos_eint_gpio_init,
}, {
/* pin-controller instance 3 TOUCH data */
.pin_banks = exynos7_pin_banks3,
.nr_banks = ARRAY_SIZE(exynos7_pin_banks3),
.eint_gpio_init = exynos_eint_gpio_init,
}, {
/* pin-controller instance 4 FF data */
.pin_banks = exynos7_pin_banks4,
.nr_banks = ARRAY_SIZE(exynos7_pin_banks4),
.eint_gpio_init = exynos_eint_gpio_init,
}, {
/* pin-controller instance 5 ESE data */
.pin_banks = exynos7_pin_banks5,
.nr_banks = ARRAY_SIZE(exynos7_pin_banks5),
.eint_gpio_init = exynos_eint_gpio_init,
}, {
/* pin-controller instance 6 FSYS0 data */
.pin_banks = exynos7_pin_banks6,
.nr_banks = ARRAY_SIZE(exynos7_pin_banks6),
.eint_gpio_init = exynos_eint_gpio_init,
}, {
/* pin-controller instance 7 FSYS1 data */
.pin_banks = exynos7_pin_banks7,
.nr_banks = ARRAY_SIZE(exynos7_pin_banks7),
.eint_gpio_init = exynos_eint_gpio_init,
}, {
/* pin-controller instance 8 BUS1 data */
.pin_banks = exynos7_pin_banks8,
.nr_banks = ARRAY_SIZE(exynos7_pin_banks8),
.eint_gpio_init = exynos_eint_gpio_init,
}, {
/* pin-controller instance 9 AUD data */
.pin_banks = exynos7_pin_banks9,
.nr_banks = ARRAY_SIZE(exynos7_pin_banks9),
.eint_gpio_init = exynos_eint_gpio_init,
},
};