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mmc: tegra: use devm help functions to get the clk and gpio 

Simplify the error and remove path.

Signed-off-by: Kevin Hao <haokexin@gmail.com>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Kevin Hao 2015-02-27 15:47:27 +08:00 committed by Ulf Hansson
parent 35daeede22
commit e4f79d9ca2
1 changed files with 3 additions and 10 deletions
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13
drivers/mmc/host/sdhci-tegra.c
View File

@ -286,7 +286,8 @@ static int sdhci_tegra_probe(struct platform_device *pdev)
goto err_parse_dt;
if (gpio_is_valid(tegra_host->power_gpio)) {
rc = gpio_request(tegra_host->power_gpio, "sdhci_power");
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");
@ -295,7 +296,7 @@ static int sdhci_tegra_probe(struct platform_device *pdev)
gpio_direction_output(tegra_host->power_gpio, 1);
}
clk = clk_get(mmc_dev(host->mmc), NULL);
clk = devm_clk_get(mmc_dev(host->mmc), NULL);
if (IS_ERR(clk)) {
dev_err(mmc_dev(host->mmc), "clk err\n");
rc = PTR_ERR(clk);
@ -312,10 +313,7 @@ static int sdhci_tegra_probe(struct platform_device *pdev)
err_add_host:
clk_disable_unprepare(pltfm_host->clk);
clk_put(pltfm_host->clk);
err_clk_get:
if (gpio_is_valid(tegra_host->power_gpio))
gpio_free(tegra_host->power_gpio);
err_power_req:
err_parse_dt:
err_alloc_tegra_host:
@ -327,16 +325,11 @@ static int sdhci_tegra_remove(struct platform_device *pdev)
{
struct sdhci_host *host = platform_get_drvdata(pdev);
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
struct sdhci_tegra *tegra_host = pltfm_host->priv;
int dead = (readl(host->ioaddr + SDHCI_INT_STATUS) == 0xffffffff);
sdhci_remove_host(host, dead);
if (gpio_is_valid(tegra_host->power_gpio))
gpio_free(tegra_host->power_gpio);
clk_disable_unprepare(pltfm_host->clk);
clk_put(pltfm_host->clk);
sdhci_pltfm_free(pdev);