diff options
| author | Deepesh Gujarathi <dgujarathi@nvidia.com> | 2010-04-30 20:11:02 +0530 |
|---|---|---|
| committer | Yu-Huan Hsu <yhsu@nvidia.com> | 2010-04-30 17:16:50 -0700 |
| commit | 3bc799a0e29981a1a41a2780917aea5aa2258979 (patch) | |
| tree | ac3cbdb5687607394d8b45131828a52be00a2943 | |
| parent | 70cf653c28cea97ca63d1d7a6770348e64709e67 (diff) | |
tegra mmc: enable sdio controller clk during wakeup
Enable the sdio controller clk before the sd stack
begins to enumerate the card during system resume.
Failing to do so results in timeout errors and
the sd card fails to mount
Change-Id: I2f5399003e21d71c6a3c4776fcefda430bca20ef
Reviewed-on: http://git-master/r/1262
Reviewed-by: Mayuresh Kulkarni <mkulkarni@nvidia.com>
Tested-by: Mayuresh Kulkarni <mkulkarni@nvidia.com>
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
Tested-by: Bitan Biswas <bbiswas@nvidia.com>
Reviewed-by: Narendra Damahe <ndamahe@nvidia.com>
Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>
| -rwxr-xr-x | drivers/mmc/host/sdhci-tegra.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c index 3216d98329f8..0d651879af46 100755 --- a/drivers/mmc/host/sdhci-tegra.c +++ b/drivers/mmc/host/sdhci-tegra.c @@ -400,6 +400,10 @@ static int tegra_sdhci_resume(struct platform_device *pdev) t_sdhci = platform_get_drvdata(pdev); if (t_sdhci->sdhost->card_type != MMC_TYPE_SDIO) { + /* enable clock to sdio controller */ + ret = tegra_sdhci_set_controller_clk(t_sdhci, NV_TRUE); + if (ret) + pr_err("tegra_sdhci_resume:tegra_sdhci_set_clock failed with error %d\n", err); ret = sdhci_resume_host(t_sdhci->sdhost); if (ret) pr_err("sdhci_resume_host failed with error %d\n", ret); |