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mmc: jz4740: Let the pinctrl driver configure the pins

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Now that the JZ4740 and similar SoCs have a pinctrl driver, we rely on
the pins being properly configured before the driver probes.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Paul Cercueil 2017-05-12 18:53:03 +02:00 committed by Linus Walleij
parent b0653ce39a
commit fa5ed6bc11
1 changed files with 5 additions and 39 deletions
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44
drivers/mmc/host/jz4740_mmc.c
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@ -20,6 +20,7 @@
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/pinctrl/consumer.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/scatterlist.h>
@ -27,7 +28,6 @@
#include <linux/bitops.h>
#include <linux/gpio.h>
#include <asm/mach-jz4740/gpio.h>
#include <asm/cacheflush.h>
#include <linux/dma-mapping.h>
#include <linux/dmaengine.h>
@ -901,15 +901,6 @@ static const struct mmc_host_ops jz4740_mmc_ops = {
.enable_sdio_irq = jz4740_mmc_enable_sdio_irq,
};
static const struct jz_gpio_bulk_request jz4740_mmc_pins[] = {
JZ_GPIO_BULK_PIN(MSC_CMD),
JZ_GPIO_BULK_PIN(MSC_CLK),
JZ_GPIO_BULK_PIN(MSC_DATA0),
JZ_GPIO_BULK_PIN(MSC_DATA1),
JZ_GPIO_BULK_PIN(MSC_DATA2),
JZ_GPIO_BULK_PIN(MSC_DATA3),
};
static int jz4740_mmc_request_gpio(struct device *dev, int gpio,
const char *name, bool output, int value)
{
@ -973,15 +964,6 @@ static void jz4740_mmc_free_gpios(struct platform_device *pdev)
gpio_free(pdata->gpio_power);
}
static inline size_t jz4740_mmc_num_pins(struct jz4740_mmc_host *host)
{
size_t num_pins = ARRAY_SIZE(jz4740_mmc_pins);
if (host->pdata && host->pdata->data_1bit)
num_pins -= 3;
return num_pins;
}
static int jz4740_mmc_probe(struct platform_device* pdev)
{
int ret;
@ -1022,15 +1004,9 @@ static int jz4740_mmc_probe(struct platform_device* pdev)
goto err_free_host;
}
ret = jz_gpio_bulk_request(jz4740_mmc_pins, jz4740_mmc_num_pins(host));
if (ret) {
dev_err(&pdev->dev, "Failed to request mmc pins: %d\n", ret);
goto err_free_host;
}
ret = jz4740_mmc_request_gpios(mmc, pdev);
if (ret)
goto err_gpio_bulk_free;
goto err_release_dma;
mmc->ops = &jz4740_mmc_ops;
mmc->f_min = JZ_MMC_CLK_RATE / 128;
@ -1086,10 +1062,9 @@ static int jz4740_mmc_probe(struct platform_device* pdev)
free_irq(host->irq, host);
err_free_gpios:
jz4740_mmc_free_gpios(pdev);
err_gpio_bulk_free:
err_release_dma:
if (host->use_dma)
jz4740_mmc_release_dma_channels(host);
jz_gpio_bulk_free(jz4740_mmc_pins, jz4740_mmc_num_pins(host));
err_free_host:
mmc_free_host(mmc);
@ -1109,7 +1084,6 @@ static int jz4740_mmc_remove(struct platform_device *pdev)
free_irq(host->irq, host);
jz4740_mmc_free_gpios(pdev);
jz_gpio_bulk_free(jz4740_mmc_pins, jz4740_mmc_num_pins(host));
if (host->use_dma)
jz4740_mmc_release_dma_channels(host);
@ -1123,20 +1097,12 @@ static int jz4740_mmc_remove(struct platform_device *pdev)
static int jz4740_mmc_suspend(struct device *dev)
{
struct jz4740_mmc_host *host = dev_get_drvdata(dev);
jz_gpio_bulk_suspend(jz4740_mmc_pins, jz4740_mmc_num_pins(host));
return 0;
return pinctrl_pm_select_sleep_state(dev);
}
static int jz4740_mmc_resume(struct device *dev)
{
struct jz4740_mmc_host *host = dev_get_drvdata(dev);
jz_gpio_bulk_resume(jz4740_mmc_pins, jz4740_mmc_num_pins(host));
return 0;
return pinctrl_pm_select_default_state(dev);
}
static SIMPLE_DEV_PM_OPS(jz4740_mmc_pm_ops, jz4740_mmc_suspend,