leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

mmc: sdhci-esdhc-imx: Fixup ->remove()

Browse Source 
Since sdhci_remove_host() access the device, we need to make sure it's
runtime PM resumed.

To handle clock gating properly in remove, we first have to make sure
the clocks are ungated.

To fix both these issues, by invoking pm_runtime_get_sync() early in
->remove() callback. Later once we disabled runtime PM, we can restore
the usage count.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Ulf Hansson 2014-12-11 14:56:15 +01:00
parent 0ac223a439
commit 0b41436840
1 changed files with 7 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/mmc/host/sdhci-esdhc-imx.c
View File

@ -1103,16 +1103,15 @@ static int sdhci_esdhc_imx_remove(struct platform_device *pdev)
struct pltfm_imx_data *imx_data = pltfm_host->priv;
int dead = (readl(host->ioaddr + SDHCI_INT_STATUS) == 0xffffffff);
pm_runtime_get_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
pm_runtime_put_noidle(&pdev->dev);
sdhci_remove_host(host, dead);
pm_runtime_dont_use_autosuspend(&pdev->dev);
pm_runtime_disable(&pdev->dev);
if (!IS_ENABLED(CONFIG_PM)) {
clk_disable_unprepare(imx_data->clk_per);
clk_disable_unprepare(imx_data->clk_ipg);
clk_disable_unprepare(imx_data->clk_ahb);
}
clk_disable_unprepare(imx_data->clk_per);
clk_disable_unprepare(imx_data->clk_ipg);
clk_disable_unprepare(imx_data->clk_ahb);
sdhci_pltfm_free(pdev);