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Release 4.7 drivers/pinctrl/mvebu/pinctrl-dove.c

/*
 * Marvell Dove pinctrl driver based on mvebu pinctrl core
 *
 * Author: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
 *
 * 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.
 */

#include <linux/err.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/bitops.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/mfd/syscon.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/regmap.h>

#include "pinctrl-mvebu.h"

/* Internal registers can be configured at any 1 MiB aligned address */

#define INT_REGS_MASK		~(SZ_1M - 1)

#define MPP4_REGS_OFFS		0xd0440

#define PMU_REGS_OFFS		0xd802c

#define GC_REGS_OFFS		0xe802c

/* MPP Base registers */

#define PMU_MPP_GENERAL_CTRL	0x10

#define  AU0_AC97_SEL		BIT(16)

/* MPP Control 4 register */

#define SPI_GPIO_SEL		BIT(5)

#define UART1_GPIO_SEL		BIT(4)

#define AU1_GPIO_SEL		BIT(3)

#define CAM_GPIO_SEL		BIT(2)

#define SD1_GPIO_SEL		BIT(1)

#define SD0_GPIO_SEL		BIT(0)

/* PMU Signal Select registers */

#define PMU_SIGNAL_SELECT_0	0x00

#define PMU_SIGNAL_SELECT_1	0x04

/* Global Config regmap registers */

#define GLOBAL_CONFIG_1		0x00

#define  TWSI_ENABLE_OPTION1	BIT(7)

#define GLOBAL_CONFIG_2		0x04

#define  TWSI_ENABLE_OPTION2	BIT(20)

#define  TWSI_ENABLE_OPTION3	BIT(21)

#define  TWSI_OPTION3_GPIO	BIT(22)

#define SSP_CTRL_STATUS_1	0x08

#define  SSP_ON_AU1		BIT(0)

#define MPP_GENERAL_CONFIG	0x10

#define  AU1_SPDIFO_GPIO_EN	BIT(1)

#define  NAND_GPIO_EN		BIT(0)


#define CONFIG_PMU	BIT(4)


static void __iomem *mpp_base;

static void __iomem *mpp4_base;

static void __iomem *pmu_base;

static struct regmap *gconfmap;


static int dove_mpp_ctrl_get(unsigned pid, unsigned long *config) { return default_mpp_ctrl_get(mpp_base, pid, config); }

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static int dove_mpp_ctrl_set(unsigned pid, unsigned long config) { return default_mpp_ctrl_set(mpp_base, pid, config); }

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static int dove_pmu_mpp_ctrl_get(unsigned pid, unsigned long *config) { unsigned off = (pid / MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS; unsigned shift = (pid % MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS; unsigned long pmu = readl(mpp_base + PMU_MPP_GENERAL_CTRL); unsigned long func; if ((pmu & BIT(pid)) == 0) return default_mpp_ctrl_get(mpp_base, pid, config); func = readl(pmu_base + PMU_SIGNAL_SELECT_0 + off); *config = (func >> shift) & MVEBU_MPP_MASK; *config |= CONFIG_PMU; return 0; }

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static int dove_pmu_mpp_ctrl_set(unsigned pid, unsigned long config) { unsigned off = (pid / MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS; unsigned shift = (pid % MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS; unsigned long pmu = readl(mpp_base + PMU_MPP_GENERAL_CTRL); unsigned long func; if ((config & CONFIG_PMU) == 0) { writel(pmu & ~BIT(pid), mpp_base + PMU_MPP_GENERAL_CTRL); return default_mpp_ctrl_set(mpp_base, pid, config); } writel(pmu | BIT(pid), mpp_base + PMU_MPP_GENERAL_CTRL); func = readl(pmu_base + PMU_SIGNAL_SELECT_0 + off); func &= ~(MVEBU_MPP_MASK << shift); func |= (config & MVEBU_MPP_MASK) << shift; writel(func, pmu_base + PMU_SIGNAL_SELECT_0 + off); return 0; }

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static int dove_mpp4_ctrl_get(unsigned pid, unsigned long *config) { unsigned long mpp4 = readl(mpp4_base); unsigned long mask; switch (pid) { case 24: /* mpp_camera */ mask = CAM_GPIO_SEL; break; case 40: /* mpp_sdio0 */ mask = SD0_GPIO_SEL; break; case 46: /* mpp_sdio1 */ mask = SD1_GPIO_SEL; break; case 58: /* mpp_spi0 */ mask = SPI_GPIO_SEL; break; case 62: /* mpp_uart1 */ mask = UART1_GPIO_SEL; break; default: return -EINVAL; } *config = ((mpp4 & mask) != 0); return 0; }

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static int dove_mpp4_ctrl_set(unsigned pid, unsigned long config) { unsigned long mpp4 = readl(mpp4_base); unsigned long mask; switch (pid) { case 24: /* mpp_camera */ mask = CAM_GPIO_SEL; break; case 40: /* mpp_sdio0 */ mask = SD0_GPIO_SEL; break; case 46: /* mpp_sdio1 */ mask = SD1_GPIO_SEL; break; case 58: /* mpp_spi0 */ mask = SPI_GPIO_SEL; break; case 62: /* mpp_uart1 */ mask = UART1_GPIO_SEL; break; default: return -EINVAL; } mpp4 &= ~mask; if (config) mpp4 |= mask; writel(mpp4, mpp4_base); return 0; }

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static int dove_nand_ctrl_get(unsigned pid, unsigned long *config) { unsigned int gmpp; regmap_read(gconfmap, MPP_GENERAL_CONFIG, &gmpp); *config = ((gmpp & NAND_GPIO_EN) != 0); return 0; }

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static int dove_nand_ctrl_set(unsigned pid, unsigned long config) { regmap_update_bits(gconfmap, MPP_GENERAL_CONFIG, NAND_GPIO_EN, (config) ? NAND_GPIO_EN : 0); return 0; }

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static int dove_audio0_ctrl_get(unsigned pid, unsigned long *config) { unsigned long pmu = readl(mpp_base + PMU_MPP_GENERAL_CTRL); *config = ((pmu & AU0_AC97_SEL) != 0); return 0; }

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static int dove_audio0_ctrl_set(unsigned pid, unsigned long config) { unsigned long pmu = readl(mpp_base + PMU_MPP_GENERAL_CTRL); pmu &= ~AU0_AC97_SEL; if (config) pmu |= AU0_AC97_SEL; writel(pmu, mpp_base + PMU_MPP_GENERAL_CTRL); return 0; }

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static int dove_audio1_ctrl_get(unsigned pid, unsigned long *config) { unsigned int mpp4 = readl(mpp4_base); unsigned int sspc1; unsigned int gmpp; unsigned int gcfg2; regmap_read(gconfmap, SSP_CTRL_STATUS_1, &sspc1); regmap_read(gconfmap, MPP_GENERAL_CONFIG, &gmpp); regmap_read(gconfmap, GLOBAL_CONFIG_2, &gcfg2); *config = 0; if (mpp4 & AU1_GPIO_SEL) *config |= BIT(3); if (sspc1 & SSP_ON_AU1) *config |= BIT(2); if (gmpp & AU1_SPDIFO_GPIO_EN) *config |= BIT(1); if (gcfg2 & TWSI_OPTION3_GPIO) *config |= BIT(0); /* SSP/TWSI only if I2S1 not set*/ if ((*config & BIT(3)) == 0) *config &= ~(BIT(2) | BIT(0)); /* TWSI only if SPDIFO not set*/ if ((*config & BIT(1)) == 0) *config &= ~BIT(0); return 0; }

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static int dove_audio1_ctrl_set(unsigned pid, unsigned long config) { unsigned int mpp4 = readl(mpp4_base); mpp4 &= ~AU1_GPIO_SEL; if (config & BIT(3)) mpp4 |= AU1_GPIO_SEL; writel(mpp4, mpp4_base); regmap_update_bits(gconfmap, SSP_CTRL_STATUS_1, SSP_ON_AU1, (config & BIT(2)) ? SSP_ON_AU1 : 0); regmap_update_bits(gconfmap, MPP_GENERAL_CONFIG, AU1_SPDIFO_GPIO_EN, (config & BIT(1)) ? AU1_SPDIFO_GPIO_EN : 0); regmap_update_bits(gconfmap, GLOBAL_CONFIG_2, TWSI_OPTION3_GPIO, (config & BIT(0)) ? TWSI_OPTION3_GPIO : 0); return 0; }

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/* mpp[52:57] gpio pins depend heavily on current config; * gpio_req does not try to mux in gpio capabilities to not * break other functions. If you require all mpps as gpio * enforce gpio setting by pinctrl mapping. */
static int dove_audio1_ctrl_gpio_req(unsigned pid) { unsigned long config; dove_audio1_ctrl_get(pid, &config); switch (config) { case 0x02: /* i2s1 : gpio[56:57] */ case 0x0e: /* ssp : gpio[56:57] */ if (pid >= 56) return 0; return -ENOTSUPP; case 0x08: /* spdifo : gpio[52:55] */ case 0x0b: /* twsi : gpio[52:55] */ if (pid <= 55) return 0; return -ENOTSUPP; case 0x0a: /* all gpio */ return 0; /* 0x00 : i2s1/spdifo : no gpio */ /* 0x0c : ssp/spdifo : no gpio */ /* 0x0f : ssp/twsi : no gpio */ } return -ENOTSUPP; }

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/* mpp[52:57] has gpio pins capable of in and out */
static int dove_audio1_ctrl_gpio_dir(unsigned pid, bool input) { if (pid < 52 || pid > 57) return -ENOTSUPP; return 0; }

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static int dove_twsi_ctrl_get(unsigned pid, unsigned long *config) { unsigned int gcfg1; unsigned int gcfg2; regmap_read(gconfmap, GLOBAL_CONFIG_1, &gcfg1); regmap_read(gconfmap, GLOBAL_CONFIG_2, &gcfg2); *config = 0; if (gcfg1 & TWSI_ENABLE_OPTION1) *config = 1; else if (gcfg2 & TWSI_ENABLE_OPTION2) *config = 2; else if (gcfg2 & TWSI_ENABLE_OPTION3) *config = 3; return 0; }

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static int dove_twsi_ctrl_set(unsigned pid, unsigned long config) { unsigned int gcfg1 = 0; unsigned int gcfg2 = 0; switch (config) { case 1: gcfg1 = TWSI_ENABLE_OPTION1; break; case 2: gcfg2 = TWSI_ENABLE_OPTION2; break; case 3: gcfg2 = TWSI_ENABLE_OPTION3; break; } regmap_update_bits(gconfmap, GLOBAL_CONFIG_1, TWSI_ENABLE_OPTION1, gcfg1); regmap_update_bits(gconfmap, GLOBAL_CONFIG_2, TWSI_ENABLE_OPTION2 | TWSI_ENABLE_OPTION3, gcfg2); return 0; }

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static struct mvebu_mpp_ctrl dove_mpp_controls[] = { MPP_FUNC_CTRL(0, 15, NULL, dove_pmu_mpp_ctrl), MPP_FUNC_CTRL(16, 23, NULL, dove_mpp_ctrl), MPP_FUNC_CTRL(24, 39, "mpp_camera", dove_mpp4_ctrl), MPP_FUNC_CTRL(40, 45, "mpp_sdio0", dove_mpp4_ctrl), MPP_FUNC_CTRL(46, 51, "mpp_sdio1", dove_mpp4_ctrl), MPP_FUNC_GPIO_CTRL(52, 57, "mpp_audio1", dove_audio1_ctrl), MPP_FUNC_CTRL(58, 61, "mpp_spi0", dove_mpp4_ctrl), MPP_FUNC_CTRL(62, 63, "mpp_uart1", dove_mpp4_ctrl), MPP_FUNC_CTRL(64, 71, "mpp_nand", dove_nand_ctrl), MPP_FUNC_CTRL(72, 72, "audio0", dove_audio0_ctrl), MPP_FUNC_CTRL(73, 73, "twsi", dove_twsi_ctrl), }; static struct mvebu_mpp_mode dove_mpp_modes[] = { MPP_MODE(0, MPP_FUNCTION(0x00, "gpio", NULL), MPP_FUNCTION(0x02, "uart2", "rts"), MPP_FUNCTION(0x03, "sdio0", "cd"), MPP_FUNCTION(0x0f, "lcd0", "pwm"), MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL), MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), MPP_MODE(1, MPP_FUNCTION(0x00, "gpio", NULL), MPP_FUNCTION(0x02, "uart2", "cts"), MPP_FUNCTION(0x03, "sdio0", "wp"), MPP_FUNCTION(0x0f, "lcd1", "pwm"), MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL), MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), MPP_MODE(2, MPP_FUNCTION(0x00, "gpio", NULL), MPP_FUNCTION(0x01, "sata", "prsnt"), MPP_FUNCTION(0x02, "uart2", "txd"), MPP_FUNCTION(0x03, "sdio0", "buspwr"), MPP_FUNCTION(0x04, "uart1", "rts"), MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL), MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), MPP_MODE(3, MPP_FUNCTION(0x00, "gpio", NULL), MPP_FUNCTION(0x01, "sata", "act"), MPP_FUNCTION(0x02, "uart2", "rxd"), MPP_FUNCTION(0x03, "sdio0", "ledctrl"), MPP_FUNCTION(0x04, "uart1", "cts"), MPP_FUNCTION(0x0f, "lcd-spi", "cs1"), MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL), MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), MPP_MODE(4, MPP_FUNCTION(0x00, "gpio", NULL), MPP_FUNCTION(0x02, "uart3", "rts"), MPP_FUNCTION(0x03, "sdio1", "cd"), MPP_FUNCTION(0x04, "spi1", "miso"), MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL), MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), MPP_MODE(5, MPP_FUNCTION(0x00, "gpio", NULL), MPP_FUNCTION(0x02, "uart3", "cts"), MPP_FUNCTION(0x03, "sdio1", "wp"), MPP_FUNCTION(0x04, "spi1", "cs"), MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL), MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), MPP_MODE(6, MPP_FUNCTION(0x00, "gpio", NULL), MPP_FUNCTION(0x02, "uart3", "txd"), MPP_FUNCTION(0x03, "sdio1", "buspwr"), MPP_FUNCTION(0x04, "spi1", "mosi"), MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL), MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), MPP_MODE(7, MPP_FUNCTION(0x00, "gpio", NULL), MPP_FUNCTION(0x02, "uart3", "rxd"), MPP_FUNCTION(0x03, "sdio1", "ledctrl"), MPP_FUNCTION(0x04, "spi1", "sck"), MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL), MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), MPP_MODE(8, MPP_FUNCTION(0x00, "gpio", NULL), MPP_FUNCTION(0x01, "watchdog", "rstout"), MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL), MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), MPP_MODE(9, MPP_FUNCTION(0x00, "gpio", NULL), MPP_FUNCTION(0x05, "pex1", "clkreq"), MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL), MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), MPP_MODE(10, MPP_FUNCTION(0x00, "gpio", NULL), MPP_FUNCTION(0x05, "ssp", "sclk"), MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL), MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), MPP_MODE(11, MPP_FUNCTION(0x00, "gpio", NULL), MPP_FUNCTION(0x01, "sata", "prsnt"), MPP_FUNCTION(0x02, "sata-1", "act"), MPP_FUNCTION(0x03, "sdio0", "ledctrl"), MPP_FUNCTION(0x04, "sdio1", "ledctrl"), MPP_FUNCTION(0x05, "pex0", "clkreq"), MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL), MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), MPP_MODE(12, MPP_FUNCTION(0x00, "gpio", NULL), MPP_FUNCTION(0x01, "sata", "act"), MPP_FUNCTION(0x02, "uart2", "rts"), MPP_FUNCTION(0x03, "audio0", "extclk"), MPP_FUNCTION(0x04, "sdio1", "cd"), MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL), MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), MPP_MODE(13, MPP_FUNCTION(0x00, "gpio", NULL), MPP_FUNCTION(0x02, "uart2", "cts"), MPP_FUNCTION(0x03, "audio1", "extclk"), MPP_FUNCTION(0x04, "sdio1", "wp"), MPP_FUNCTION(0x05, "ssp", "extclk"), MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL), MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), MPP_MODE(14, MPP_FUNCTION(0x00, "gpio", NULL), MPP_FUNCTION(0x02, "uart2", "txd"), MPP_FUNCTION(0x04, "sdio1", "buspwr"), MPP_FUNCTION(0x05, "ssp", "rxd"), MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL), MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), MPP_MODE(15, MPP_FUNCTION(0x00, "gpio", NULL), MPP_FUNCTION(0x02, "uart2", "rxd"), MPP_FUNCTION(0x04, "sdio1", "ledctrl"), MPP_FUNCTION(0x05, "ssp", "sfrm"), MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL), MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), MPP_MODE(16, MPP_FUNCTION(0x00, "gpio", NULL), MPP_FUNCTION(0x02, "uart3", "rts"), MPP_FUNCTION(0x03, "sdio0", "cd"), MPP_FUNCTION(0x04, "lcd-spi", "cs1"), MPP_FUNCTION(0x05, "ac97", "sdi1")), MPP_MODE(17, MPP_FUNCTION(0x00, "gpio", NULL), MPP_FUNCTION(0x01, "ac97-1", "sysclko"), MPP_FUNCTION(0x02, "uart3", "cts"), MPP_FUNCTION(0x03, "sdio0", "wp"), MPP_FUNCTION(0x04, "twsi", "sda"), MPP_FUNCTION(0x05, "ac97", "sdi2")), MPP_MODE(18, MPP_FUNCTION(0x00, "gpio", NULL), MPP_FUNCTION(0x02, "uart3", "txd"), MPP_FUNCTION(0x03, "sdio0", "buspwr"), MPP_FUNCTION(0x04, "lcd0", "pwm"), MPP_FUNCTION(0x05, "ac97", "sdi3")), MPP_MODE(19, MPP_FUNCTION(0x00, "gpio", NULL), MPP_FUNCTION(0x02, "uart3", "rxd"), MPP_FUNCTION(0x03, "sdio0", "ledctrl"), MPP_FUNCTION(0x04, "twsi", "sck")), MPP_MODE(20, MPP_FUNCTION(0x00, "gpio", NULL), MPP_FUNCTION(0x01, "ac97", "sysclko"), MPP_FUNCTION(0x02, "lcd-spi", "miso"), MPP_FUNCTION(0x03, "sdio1", "cd"), MPP_FUNCTION(0x05, "sdio0", "cd"), MPP_FUNCTION(0x06, "spi1", "miso")), MPP_MODE(21, MPP_FUNCTION(0x00, "gpio", NULL), MPP_FUNCTION(0x01, "uart1", "rts"), MPP_FUNCTION(0x02, "lcd-spi", "cs0"), MPP_FUNCTION(0x03, "sdio1", "wp"), MPP_FUNCTION(0x04, "ssp", "sfrm"), MPP_FUNCTION(0x05, "sdio0", "wp"), MPP_FUNCTION(0x06, "spi1", "cs")), MPP_MODE(22, MPP_FUNCTION(0x00, "gpio", NULL), MPP_FUNCTION(0x01, "uart1", "cts"), MPP_FUNCTION(0x02, "lcd-spi", "mosi"), MPP_FUNCTION(0x03, "sdio1", "buspwr"), MPP_FUNCTION(0x04, "ssp", "txd"), MPP_FUNCTION(0x05, "sdio0", "buspwr"), MPP_FUNCTION(0x06, "spi1", "mosi")), MPP_MODE(23, MPP_FUNCTION(0x00, "gpio", NULL), MPP_FUNCTION(0x02, "lcd-spi", "sck"), MPP_FUNCTION(0x03, "sdio1", "ledctrl"), MPP_FUNCTION(0x04, "ssp", "sclk"), MPP_FUNCTION(0x05, "sdio0", "ledctrl"), MPP_FUNCTION(0x06, "spi1", "sck")), MPP_MODE(24, MPP_FUNCTION(0x00, "camera", NULL), MPP_FUNCTION(0x01, "gpio", NULL)), MPP_MODE(40, MPP_FUNCTION(0x00, "sdio0", NULL), MPP_FUNCTION(0x01, "gpio", NULL)), MPP_MODE(46, MPP_FUNCTION(0x00, "sdio1", NULL), MPP_FUNCTION(0x01, "gpio", NULL)), MPP_MODE(52, MPP_FUNCTION(0x00, "i2s1/spdifo", NULL), MPP_FUNCTION(0x02, "i2s1", NULL), MPP_FUNCTION(0x08, "spdifo", NULL), MPP_FUNCTION(0x0a, "gpio", NULL), MPP_FUNCTION(0x0b, "twsi", NULL), MPP_FUNCTION(0x0c, "ssp/spdifo", NULL), MPP_FUNCTION(0x0e, "ssp", NULL), MPP_FUNCTION(0x0f, "ssp/twsi", NULL)), MPP_MODE(58, MPP_FUNCTION(0x00, "spi0", NULL), MPP_FUNCTION(0x01, "gpio", NULL)), MPP_MODE(62, MPP_FUNCTION(0x00, "uart1", NULL), MPP_FUNCTION(0x01, "gpio", NULL)), MPP_MODE(64, MPP_FUNCTION(0x00, "nand", NULL), MPP_FUNCTION(0x01, "gpo", NULL)), MPP_MODE(72, MPP_FUNCTION(0x00, "i2s", NULL), MPP_FUNCTION(0x01, "ac97", NULL)), MPP_MODE(73, MPP_FUNCTION(0x00, "twsi-none", NULL), MPP_FUNCTION(0x01, "twsi-opt1", NULL), MPP_FUNCTION(0x02, "twsi-opt2", NULL), MPP_FUNCTION(0x03, "twsi-opt3", NULL)), }; static struct pinctrl_gpio_range dove_mpp_gpio_ranges[] = { MPP_GPIO_RANGE(0, 0, 0, 32), MPP_GPIO_RANGE(1, 32, 32, 32), MPP_GPIO_RANGE(2, 64, 64, 8), }; static struct mvebu_pinctrl_soc_info dove_pinctrl_info = { .controls = dove_mpp_controls, .ncontrols = ARRAY_SIZE(dove_mpp_controls), .modes = dove_mpp_modes, .nmodes = ARRAY_SIZE(dove_mpp_modes), .gpioranges = dove_mpp_gpio_ranges, .ngpioranges = ARRAY_SIZE(dove_mpp_gpio_ranges), .variant = 0, }; static struct clk *clk; static const struct of_device_id dove_pinctrl_of_match[] = { { .compatible = "marvell,dove-pinctrl", .data = &dove_pinctrl_info }, { } }; static const struct regmap_config gc_regmap_config = { .reg_bits = 32, .val_bits = 32, .reg_stride = 4, .max_register = 5, };
static int dove_pinctrl_probe(struct platform_device *pdev) { struct resource *res, *mpp_res; struct resource fb_res; const struct of_device_id *match = of_match_device(dove_pinctrl_of_match, &pdev->dev); pdev->dev.platform_data = (void *)match->data; /* * General MPP Configuration Register is part of pdma registers. * grab clk to make sure it is ticking. */ clk = devm_clk_get(&pdev->dev, NULL); if (IS_ERR(clk)) { dev_err(&pdev->dev, "Unable to get pdma clock"); return PTR_ERR(clk); } clk_prepare_enable(clk); mpp_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); mpp_base = devm_ioremap_resource(&pdev->dev, mpp_res); if (IS_ERR(mpp_base)) return PTR_ERR(mpp_base); /* prepare fallback resource */ memcpy(&fb_res, mpp_res, sizeof(struct resource)); fb_res.start = 0; res = platform_get_resource(pdev, IORESOURCE_MEM, 1); if (!res) { dev_warn(&pdev->dev, "falling back to hardcoded MPP4 resource\n"); adjust_resource(&fb_res, (mpp_res->start & INT_REGS_MASK) + MPP4_REGS_OFFS, 0x4); res = &fb_res; } mpp4_base = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(mpp4_base)) return PTR_ERR(mpp4_base); res = platform_get_resource(pdev, IORESOURCE_MEM, 2); if (!res) { dev_warn(&pdev->dev, "falling back to hardcoded PMU resource\n"); adjust_resource(&fb_res, (mpp_res->start & INT_REGS_MASK) + PMU_REGS_OFFS, 0x8); res = &fb_res; } pmu_base = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(pmu_base)) return PTR_ERR(pmu_base); gconfmap = syscon_regmap_lookup_by_compatible("marvell,dove-global-config"); if (IS_ERR(gconfmap)) { void __iomem *gc_base; dev_warn(&pdev->dev, "falling back to hardcoded global registers\n"); adjust_resource(&fb_res, (mpp_res->start & INT_REGS_MASK) + GC_REGS_OFFS, 0x14); gc_base = devm_ioremap_resource(&pdev->dev, &fb_res); if (IS_ERR(gc_base)) return PTR_ERR(gc_base); gconfmap = devm_regmap_init_mmio(&pdev->dev, gc_base, &gc_regmap_config); if (IS_ERR(gconfmap)) return PTR_ERR(gconfmap); } /* Warn on any missing DT resource */ if (fb_res.start) dev_warn(&pdev->dev, FW_BUG "Missing pinctrl regs in DTB. Please update your firmware.\n"); return mvebu_pinctrl_probe(pdev); }

Contributors

PersonTokensPropCommitsCommitProp
sebastian hesselbarthsebastian hesselbarth42798.84%675.00%
andrew lunnandrew lunn40.93%112.50%
rusty russellrusty russell10.23%112.50%
Total432100.00%8100.00%


static int dove_pinctrl_remove(struct platform_device *pdev) { if (!IS_ERR(clk)) clk_disable_unprepare(clk); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
sebastian hesselbarthsebastian hesselbarth2696.30%150.00%
laxman dewanganlaxman dewangan13.70%150.00%
Total27100.00%2100.00%

static struct platform_driver dove_pinctrl_driver = { .driver = { .name = "dove-pinctrl", .of_match_table = dove_pinctrl_of_match, }, .probe = dove_pinctrl_probe, .remove = dove_pinctrl_remove, }; module_platform_driver(dove_pinctrl_driver); MODULE_AUTHOR("Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>"); MODULE_DESCRIPTION("Marvell Dove pinctrl driver"); MODULE_LICENSE("GPL v2");

Overall Contributors

PersonTokensPropCommitsCommitProp
sebastian hesselbarthsebastian hesselbarth571799.79%1575.00%
axel linaxel lin40.07%15.00%
andrew lunnandrew lunn40.07%15.00%
krzysztof kozlowskikrzysztof kozlowski20.03%15.00%
laxman dewanganlaxman dewangan10.02%15.00%
rusty russellrusty russell10.02%15.00%
greg kroah-hartmangreg kroah-hartman0.00%00.00%
Total5729100.00%20100.00%
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