This change adds remove function in platform_driver to clean unloading
Cc: David Brown <davidb@xxxxxxxxxxxxxx>
Cc: Daniel Walker <dwalker@xxxxxxxxxx>
Cc: Bryan Huntsman <bryanh@xxxxxxxxxxxxxx>
CC: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
CC: linux-mmc@xxxxxxxxxxxxxxx
CC: linux-arm-msm@xxxxxxxxxxxxxxx
Signed-off-by: Pramod Gurav <pramod.gurav@xxxxxxxxxxxxxxx>
---
drivers/mmc/host/msm_sdcc.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/drivers/mmc/host/msm_sdcc.c b/drivers/mmc/host/msm_sdcc.c
index 2b8ac9c..3e0536d 100644
--- a/drivers/mmc/host/msm_sdcc.c
+++ b/drivers/mmc/host/msm_sdcc.c
@@ -1360,6 +1360,7 @@ msmsdcc_probe(struct platform_device *pdev)
if (ret)
goto clk_disable;
+ platform_set_drvdata(pdev, host);
mmc_set_drvdata(pdev, mmc);
mmc_add_host(mmc);
@@ -1406,6 +1407,22 @@ msmsdcc_probe(struct platform_device *pdev)
return ret;
}
+static int msmsdcc_remove(struct platform_device *pdev)
+{
+ struct msmsdcc_host *host = platform_get_drvdata(pdev);
+
+ msmsdcc_disable_clocks(host, 0);
+ clk_unprepare(host->clk);
+ clk_unprepare(host->pclk);
+ if (host->dmares)
+ dma_free_coherent(NULL, sizeof(struct msmsdcc_nc_dmadata),
+ host->dma.nc, host->dma.nc_busaddr);
+ tasklet_kill(&host->dma_tlet);
+ mmc_free_host(host->mmc);
+
+ return 0;
+}
+
#ifdef CONFIG_PM
static int
msmsdcc_suspend(struct platform_device *dev, pm_message_t state)
@@ -1452,6 +1469,7 @@ msmsdcc_resume(struct platform_device *dev)
static struct platform_driver msmsdcc_driver = {
.probe = msmsdcc_probe,
+ .remove = msmsdcc_remove,
.suspend = msmsdcc_suspend,
.resume = msmsdcc_resume,
.driver = {
--
1.7.9.5
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