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mmc: sdhci-tegra: convert to use GPIO descriptors 

Modify the driver to handle GPIOs using the descriptor API.

Signed-off-by: Mylene JOSSERAND <josserand.mylene@gmail.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Tested-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Mylene JOSSERAND 2015-03-30 23:39:25 +02:00 committed by Ulf Hansson
parent e03de74516
commit 2391b340ca
1 changed files with 8 additions and 24 deletions
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32
drivers/mmc/host/sdhci-tegra.c
View File

@ -20,11 +20,10 @@
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_gpio.h>
#include <linux/gpio.h>
#include <linux/mmc/card.h>
#include <linux/mmc/host.h>
#include <linux/mmc/slot-gpio.h>
#include <linux/gpio/consumer.h>
#include "sdhci-pltfm.h"
@ -49,7 +48,7 @@ struct sdhci_tegra_soc_data {
struct sdhci_tegra {
const struct sdhci_tegra_soc_data *soc_data;
int power_gpio;
struct gpio_desc *power_gpio;
};
static u16 tegra_sdhci_readw(struct sdhci_host *host, int reg)
@ -246,17 +245,6 @@ static const struct of_device_id sdhci_tegra_dt_match[] = {
};
MODULE_DEVICE_TABLE(of, sdhci_tegra_dt_match);
static int sdhci_tegra_parse_dt(struct device *dev)
{
struct device_node *np = dev->of_node;
struct sdhci_host *host = dev_get_drvdata(dev);
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
struct sdhci_tegra *tegra_host = pltfm_host->priv;
tegra_host->power_gpio = of_get_named_gpio(np, "power-gpios", 0);
return mmc_of_parse(host->mmc);
}
static int sdhci_tegra_probe(struct platform_device *pdev)
{
const struct of_device_id *match;
@ -286,19 +274,15 @@ static int sdhci_tegra_probe(struct platform_device *pdev)
tegra_host->soc_data = soc_data;
pltfm_host->priv = tegra_host;
rc = sdhci_tegra_parse_dt(&pdev->dev);
rc = mmc_of_parse(host->mmc);
if (rc)
goto err_parse_dt;
if (gpio_is_valid(tegra_host->power_gpio)) {
rc = devm_gpio_request(&pdev->dev, tegra_host->power_gpio,
"sdhci_power");
if (rc) {
dev_err(mmc_dev(host->mmc),
"failed to allocate power gpio\n");
goto err_power_req;
}
gpio_direction_output(tegra_host->power_gpio, 1);
tegra_host->power_gpio = devm_gpiod_get_optional(&pdev->dev, "power",
GPIOD_OUT_HIGH);
if (IS_ERR(tegra_host->power_gpio)) {
rc = PTR_ERR(tegra_host->power_gpio);
goto err_power_req;
}
clk = devm_clk_get(mmc_dev(host->mmc), NULL);