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ARM: s3c24xx: move s3cmci pinctrl handling into board files 

Rather than call the internal s3c_gpio_cfgall_range() function
through a platform header, move the code into the set_power
callback that is already exported by the board, and add
a default implementation.

In DT mode, the code already does not set the pin config,
so nothing changes there.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20200806182059.2431-29-krzk@kernel.org
[krzk: Rebase and correct set_power in mach-h1940.c]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
This commit is contained in:
Arnd Bergmann 2020-08-06 20:20:46 +02:00 committed by Krzysztof Kozlowski
parent 673085f450
commit f67f6c00c7
13 changed files with 155 additions and 58 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/arm/mach-s3c24xx/include/mach/pm-core.h
View File

@ -12,6 +12,7 @@
#include "regs-clock.h"
#include "regs-irq.h"
#include <mach/irqs.h>
static inline void s3c_pm_debug_init_uart(void)
{

15
arch/arm/mach-s3c24xx/mach-amlm5900.c
View File

@ -13,6 +13,7 @@
#include <linux/list.h>
#include <linux/timer.h>
#include <linux/init.h>
#include <linux/gpio/machine.h>
#include <linux/gpio.h>
#include <linux/device.h>
#include <linux/platform_device.h>
@ -121,6 +122,19 @@ static struct s3c2410_uartcfg amlm5900_uartcfgs[] = {
}
};
static struct gpiod_lookup_table amlm5900_mmc_gpio_table = {
.dev_id = "s3c2410-sdi",
.table = {
/* bus pins */
GPIO_LOOKUP_IDX("GPIOE", 5, "bus", 0, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 6, "bus", 1, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 7, "bus", 2, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 8, "bus", 3, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 9, "bus", 4, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 10, "bus", 5, GPIO_ACTIVE_HIGH),
{ },
},
};
static struct platform_device *amlm5900_devices[] __initdata = {
#ifdef CONFIG_FB_S3C2410
@ -216,6 +230,7 @@ static void __init amlm5900_init(void)
s3c24xx_fb_set_platdata(&amlm5900_fb_info);
#endif
s3c_i2c0_set_platdata(NULL);
gpiod_add_lookup_table(&amlm5900_mmc_gpio_table);
platform_add_devices(amlm5900_devices, ARRAY_SIZE(amlm5900_devices));
}

10
arch/arm/mach-s3c24xx/mach-at2440evb.c
View File

@ -134,7 +134,7 @@ static struct platform_device at2440evb_device_eth = {
};
static struct s3c24xx_mci_pdata at2440evb_mci_pdata __initdata = {
/* Intentionally left blank */
.set_power = s3c24xx_mci_def_set_power,
};
static struct gpiod_lookup_table at2440evb_mci_gpio_table = {
@ -142,10 +142,18 @@ static struct gpiod_lookup_table at2440evb_mci_gpio_table = {
.table = {
/* Card detect S3C2410_GPG(10) */
GPIO_LOOKUP("GPIOG", 10, "cd", GPIO_ACTIVE_LOW),
/* bus pins */
GPIO_LOOKUP_IDX("GPIOE", 5, "bus", 0, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 6, "bus", 1, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 7, "bus", 2, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 8, "bus", 3, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 9, "bus", 4, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 10, "bus", 5, GPIO_ACTIVE_HIGH),
{ },
},
};
/* 7" LCD panel */
static struct s3c2410fb_display at2440evb_lcd_cfg __initdata = {

15
arch/arm/mach-s3c24xx/mach-gta02.c
View File

@ -487,6 +487,20 @@ static struct platform_device gta02_audio = {
.id = -1,
};
static struct gpiod_lookup_table gta02_mmc_gpio_table = {
.dev_id = "s3c2410-sdi",
.table = {
/* bus pins */
GPIO_LOOKUP_IDX("GPIOE", 5, "bus", 0, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 6, "bus", 1, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 7, "bus", 2, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 8, "bus", 3, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 9, "bus", 4, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 10, "bus", 5, GPIO_ACTIVE_HIGH),
{ },
},
};
static void __init gta02_map_io(void)
{
s3c24xx_init_io(gta02_iodesc, ARRAY_SIZE(gta02_iodesc));
@ -543,6 +557,7 @@ static void __init gta02_machine_init(void)
S3C_GPIO_PULL_NONE);
gpiod_add_lookup_table(&gta02_audio_gpio_table);
gpiod_add_lookup_table(&gta02_mmc_gpio_table);
platform_add_devices(gta02_devices, ARRAY_SIZE(gta02_devices));
pm_power_off = gta02_poweroff;

9
arch/arm/mach-s3c24xx/mach-h1940.c
View File

@ -445,6 +445,8 @@ static struct platform_device h1940_device_bluetooth = {
static void h1940_set_mmc_power(unsigned char power_mode, unsigned short vdd)
{
s3c24xx_mci_def_set_power(power_mode, vdd);
switch (power_mode) {
case MMC_POWER_OFF:
gpio_set_value(H1940_LATCH_SD_POWER, 0);
@ -470,6 +472,13 @@ static struct gpiod_lookup_table h1940_mmc_gpio_table = {
GPIO_LOOKUP("GPIOF", 5, "cd", GPIO_ACTIVE_LOW),
/* Write protect S3C2410_GPH(8) */
GPIO_LOOKUP("GPIOH", 8, "wp", GPIO_ACTIVE_LOW),
/* bus pins */
GPIO_LOOKUP_IDX("GPIOE", 5, "bus", 0, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 6, "bus", 1, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 7, "bus", 2, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 8, "bus", 3, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 9, "bus", 4, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 10, "bus", 5, GPIO_ACTIVE_HIGH),
{ },
},
};

9
arch/arm/mach-s3c24xx/mach-mini2440.c
View File

@ -234,7 +234,7 @@ static struct s3c2410fb_mach_info mini2440_fb_info __initdata = {
static struct s3c24xx_mci_pdata mini2440_mmc_cfg __initdata = {
.wprotect_invert = 1,
.set_power = NULL,
.set_power = s3c24xx_mci_def_set_power,
.ocr_avail = MMC_VDD_32_33|MMC_VDD_33_34,
};
@ -245,6 +245,13 @@ static struct gpiod_lookup_table mini2440_mmc_gpio_table = {
GPIO_LOOKUP("GPIOG", 8, "cd", GPIO_ACTIVE_LOW),
/* Write protect S3C2410_GPH(8) */
GPIO_LOOKUP("GPIOH", 8, "wp", GPIO_ACTIVE_HIGH),
/* bus pins */
GPIO_LOOKUP_IDX("GPIOE", 5, "bus", 0, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 6, "bus", 1, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 7, "bus", 2, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 8, "bus", 3, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 9, "bus", 4, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 10, "bus", 5, GPIO_ACTIVE_HIGH),
{ },
},
};

9
arch/arm/mach-s3c24xx/mach-n30.c
View File

@ -368,6 +368,8 @@ static struct s3c2410fb_mach_info n30_fb_info __initdata = {
static void n30_sdi_set_power(unsigned char power_mode, unsigned short vdd)
{
s3c24xx_mci_def_set_power(power_mode, vdd);
switch (power_mode) {
case MMC_POWER_ON:
case MMC_POWER_UP:
@ -393,6 +395,13 @@ static struct gpiod_lookup_table n30_mci_gpio_table = {
/* Write protect S3C2410_GPG(10) */
GPIO_LOOKUP("GPIOG", 10, "wp", GPIO_ACTIVE_LOW),
{ },
/* bus pins */
GPIO_LOOKUP_IDX("GPIOE", 5, "bus", 0, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 6, "bus", 1, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 7, "bus", 2, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 8, "bus", 3, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 9, "bus", 4, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 10, "bus", 5, GPIO_ACTIVE_HIGH),
},
};

15
arch/arm/mach-s3c24xx/mach-qt2410.c
View File

@ -223,6 +223,20 @@ static struct gpiod_lookup_table qt2410_spi_gpiod_table = {
},
};
static struct gpiod_lookup_table qt2410_mmc_gpiod_table = {
.dev_id = "s3c2410-sdi",
.table = {
/* bus pins */
GPIO_LOOKUP_IDX("GPIOE", 5, "bus", 0, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 6, "bus", 1, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 7, "bus", 2, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 8, "bus", 3, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 9, "bus", 4, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 10, "bus", 5, GPIO_ACTIVE_HIGH),
{ },
},
};
/* Board devices */
static struct platform_device *qt2410_devices[] __initdata = {
@ -347,6 +361,7 @@ static void __init qt2410_machine_init(void)
gpiod_add_lookup_table(&qt2410_spi_gpiod_table);
s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
gpiod_add_lookup_table(&qt2410_led_gpio_table);
gpiod_add_lookup_table(&qt2410_mmc_gpiod_table);
platform_add_devices(qt2410_devices, ARRAY_SIZE(qt2410_devices));
s3c_pm_init();
}

9
arch/arm/mach-s3c24xx/mach-rx1950.c
View File

@ -548,6 +548,8 @@ static struct platform_device rx1950_backlight = {
static void rx1950_set_mmc_power(unsigned char power_mode, unsigned short vdd)
{
s3c24xx_mci_def_set_power(power_mode, vdd);
switch (power_mode) {
case MMC_POWER_OFF:
gpio_direction_output(S3C2410_GPJ(1), 0);
@ -573,6 +575,13 @@ static struct gpiod_lookup_table rx1950_mmc_gpio_table = {
GPIO_LOOKUP("GPIOF", 5, "cd", GPIO_ACTIVE_LOW),
/* Write protect S3C2410_GPH(8) */
GPIO_LOOKUP("GPIOH", 8, "wp", GPIO_ACTIVE_LOW),
/* bus pins */
GPIO_LOOKUP_IDX("GPIOE", 5, "bus", 0, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 6, "bus", 1, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 7, "bus", 2, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 8, "bus", 3, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 9, "bus", 4, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 10, "bus", 5, GPIO_ACTIVE_HIGH),
{ },
},
};

15
arch/arm/mach-s3c24xx/mach-tct_hammer.c
View File

@ -7,6 +7,7 @@
// derived from linux/arch/arm/mach-s3c2410/mach-bast.c, written by
// Ben Dooks <ben@simtec.co.uk>
#include <linux/gpio/machine.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/interrupt.h>
@ -101,6 +102,19 @@ static struct s3c2410_uartcfg tct_hammer_uartcfgs[] = {
}
};
static struct gpiod_lookup_table tct_hammer_mmc_gpio_table = {
.dev_id = "s3c2410-sdi",
.table = {
/* bus pins */
GPIO_LOOKUP_IDX("GPIOE", 5, "bus", 0, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 6, "bus", 1, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 7, "bus", 2, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 8, "bus", 3, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 9, "bus", 4, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("GPIOE", 10, "bus", 5, GPIO_ACTIVE_HIGH),
{ },
},
};
static struct platform_device *tct_hammer_devices[] __initdata = {
&s3c_device_adc,
@ -129,6 +143,7 @@ static void __init tct_hammer_init_time(void)
static void __init tct_hammer_init(void)
{
s3c_i2c0_set_platdata(NULL);
gpiod_add_lookup_table(&tct_hammer_mmc_gpio_table);
platform_add_devices(tct_hammer_devices, ARRAY_SIZE(tct_hammer_devices));
}

29
arch/arm/plat-samsung/devs.c
View File

@ -5,6 +5,7 @@
//
// Base Samsung platform device definitions
#include <linux/gpio.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/interrupt.h>
@ -39,6 +40,7 @@
#include <mach/irqs.h>
#include <mach/map.h>
#include <mach/gpio-samsung.h>
#ifdef CONFIG_PLAT_S3C24XX
#include <mach/regs-s3c2443-clock.h>
@ -46,6 +48,7 @@
#include <plat/cpu.h>
#include <plat/devs.h>
#include <plat/gpio-cfg.h>
#include <linux/soc/samsung/s3c-adc.h>
#include <linux/platform_data/ata-samsung_cf.h>
#include <plat/fb.h>
@ -835,16 +838,42 @@ struct platform_device s3c_device_rtc = {
/* SDI */
#ifdef CONFIG_PLAT_S3C24XX
void s3c24xx_mci_def_set_power(unsigned char power_mode, unsigned short vdd)
{
switch (power_mode) {
case MMC_POWER_ON:
case MMC_POWER_UP:
/* Configure GPE5...GPE10 pins in SD mode */
s3c_gpio_cfgall_range(S3C2410_GPE(5), 6, S3C_GPIO_SFN(2),
S3C_GPIO_PULL_NONE);
break;
case MMC_POWER_OFF:
default:
gpio_direction_output(S3C2410_GPE(5), 0);
break;
}
}
static struct resource s3c_sdi_resource[] = {
[0] = DEFINE_RES_MEM(S3C24XX_PA_SDI, S3C24XX_SZ_SDI),
[1] = DEFINE_RES_IRQ(IRQ_SDI),
};
static struct s3c24xx_mci_pdata s3cmci_def_pdata = {
/* This is currently here to avoid a number of if (host->pdata)
* checks. Any zero fields to ensure reasonable defaults are picked. */
.no_wprotect = 1,
.no_detect = 1,
.set_power = s3c24xx_mci_def_set_power,
};
struct platform_device s3c_device_sdi = {
.name = "s3c2410-sdi",
.id = -1,
.num_resources = ARRAY_SIZE(s3c_sdi_resource),
.resource = s3c_sdi_resource,
.dev.platform_data = &s3cmci_def_pdata,
};
void __init s3c24xx_mci_set_platdata(struct s3c24xx_mci_pdata *pdata)

75
drivers/mmc/host/s3cmci.c
View File

@ -24,10 +24,6 @@
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/mmc/slot-gpio.h>
#include <plat/gpio-cfg.h>
#include <mach/gpio-samsung.h>
#include <linux/platform_data/mmc-s3cmci.h>
#include "s3cmci.h"
@ -306,7 +302,8 @@ static inline void clear_imask(struct s3cmci_host *host)
static void s3cmci_check_sdio_irq(struct s3cmci_host *host)
{
if (host->sdio_irqen) {
if (gpio_get_value(S3C2410_GPE(8)) == 0) {
if (host->pdata->bus[3] &&
gpiod_get_value(host->pdata->bus[3]) == 0) {
pr_debug("%s: signalling irq\n", __func__);
mmc_signal_sdio_irq(host->mmc);
}
@ -1205,33 +1202,20 @@ static void s3cmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
switch (ios->power_mode) {
case MMC_POWER_ON:
case MMC_POWER_UP:
/* Configure GPE5...GPE10 pins in SD mode */
if (!host->pdev->dev.of_node)
s3c_gpio_cfgall_range(S3C2410_GPE(5), 6, S3C_GPIO_SFN(2),
S3C_GPIO_PULL_NONE);
if (host->pdata->set_power)
host->pdata->set_power(ios->power_mode, ios->vdd);
if (!host->is2440)
mci_con |= S3C2410_SDICON_FIFORESET;
break;
case MMC_POWER_OFF:
default:
if (!host->pdev->dev.of_node)
gpio_direction_output(S3C2410_GPE(5), 0);
if (host->is2440)
mci_con |= S3C2440_SDICON_SDRESET;
if (host->pdata->set_power)
host->pdata->set_power(ios->power_mode, ios->vdd);
break;
}
if (host->pdata->set_power)
host->pdata->set_power(ios->power_mode, ios->vdd);
s3cmci_set_clk(host, ios);
/* Set CLOCK_ENABLE */
@ -1309,13 +1293,6 @@ static const struct mmc_host_ops s3cmci_ops = {
.enable_sdio_irq = s3cmci_enable_sdio_irq,
};
static struct s3c24xx_mci_pdata s3cmci_def_pdata = {
/* This is currently here to avoid a number of if (host->pdata)
* checks. Any zero fields to ensure reasonable defaults are picked. */
.no_wprotect = 1,
.no_detect = 1,
};
#ifdef CONFIG_ARM_S3C24XX_CPUFREQ
static int s3cmci_cpufreq_transition(struct notifier_block *nb,
@ -1469,23 +1446,20 @@ static int s3cmci_probe_pdata(struct s3cmci_host *host)
int i, ret;
host->is2440 = platform_get_device_id(pdev)->driver_data;
for (i = S3C2410_GPE(5); i <= S3C2410_GPE(10); i++) {
ret = gpio_request(i, dev_name(&pdev->dev));
if (ret) {
dev_err(&pdev->dev, "failed to get gpio %d\n", i);
for (i--; i >= S3C2410_GPE(5); i--)
gpio_free(i);
return ret;
}
pdata = pdev->dev.platform_data;
if (!pdata) {
dev_err(&pdev->dev, "need platform data");
return -ENXIO;
}
if (!pdev->dev.platform_data)
pdev->dev.platform_data = &s3cmci_def_pdata;
pdata = pdev->dev.platform_data;
for (i = 0; i < 6; i++) {
pdata->bus[i] = devm_gpiod_get_index(&pdev->dev, "bus", i,
GPIOD_OUT_LOW);
if (IS_ERR(pdata->bus[i])) {
dev_err(&pdev->dev, "failed to get gpio %d\n", i);
return PTR_ERR(pdata->bus[i]);
}
}
if (pdata->no_wprotect)
mmc->caps2 |= MMC_CAP2_NO_WRITE_PROTECT;
@ -1541,7 +1515,6 @@ static int s3cmci_probe(struct platform_device *pdev)
struct s3cmci_host *host;
struct mmc_host *mmc;
int ret;
int i;
mmc = mmc_alloc_host(sizeof(struct s3cmci_host), &pdev->dev);
if (!mmc) {
@ -1585,7 +1558,7 @@ static int s3cmci_probe(struct platform_device *pdev)
"failed to get io memory region resource.\n");
ret = -ENOENT;
goto probe_free_gpio;
goto probe_free_host;
}
host->mem = request_mem_region(host->mem->start,
@ -1594,7 +1567,7 @@ static int s3cmci_probe(struct platform_device *pdev)
if (!host->mem) {
dev_err(&pdev->dev, "failed to request io memory region.\n");
ret = -ENOENT;
goto probe_free_gpio;
goto probe_free_host;
}
host->base = ioremap(host->mem->start, resource_size(host->mem));
@ -1718,11 +1691,6 @@ static int s3cmci_probe(struct platform_device *pdev)
probe_free_mem_region:
release_mem_region(host->mem->start, resource_size(host->mem));
probe_free_gpio:
if (!pdev->dev.of_node)
for (i = S3C2410_GPE(5); i <= S3C2410_GPE(10); i++)
gpio_free(i);
probe_free_host:
mmc_free_host(mmc);
@ -1748,7 +1716,6 @@ static int s3cmci_remove(struct platform_device *pdev)
{
struct mmc_host *mmc = platform_get_drvdata(pdev);
struct s3cmci_host *host = mmc_priv(mmc);
int i;
s3cmci_shutdown(pdev);
@ -1761,10 +1728,6 @@ static int s3cmci_remove(struct platform_device *pdev)
free_irq(host->irq, host);
if (!pdev->dev.of_node)
for (i = S3C2410_GPE(5); i <= S3C2410_GPE(10); i++)
gpio_free(i);
iounmap(host->base);
release_mem_region(host->mem->start, resource_size(host->mem));

2
include/linux/platform_data/mmc-s3cmci.h
View File

@ -35,6 +35,7 @@ struct s3c24xx_mci_pdata {
unsigned long ocr_avail;
void (*set_power)(unsigned char power_mode,
unsigned short vdd);
struct gpio_desc *bus[6];
};
/**
@ -44,6 +45,7 @@ struct s3c24xx_mci_pdata {
* Copy the platform data supplied by @pdata so that this can be marked
* __initdata.
*/
extern void s3c24xx_mci_def_set_power(unsigned char power_mode, unsigned short vdd);
extern void s3c24xx_mci_set_platdata(struct s3c24xx_mci_pdata *pdata);
#endif /* _ARCH_NCI_H */