MMC: omap_hsmmc: enable interface clock before calling mmc_host_enable()

The code path entered via mmc_host_enable() can include register
accesses to the HSMMC IP block.  For this to work, both the device
interface clock and functional clock need to be enabled before
mmc_host_enable() is called.  However, omap_hsmmc_probe() calls
mmc_host_enable() before enabling the device interface clock.

Fix by calling mmc_host_enable() after the device interface clock is
enabled.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Madhusudhan Chikkature Rajashekar <madhu.cr@ti.com>
Cc: Adrian Hunter <adrian.hunter@nokia.com>
Cc: Kishore Kadiyala <kishore.kadiyala@ti.com>
Cc: Tero Kristo <Tero.Kristo@nokia.com>
Acked-by: Madhusudhan Chikkature Rajashekar <madhu.cr@ti.com>

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 078fdf1..0cf0d89 100644 (file)
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -2101,14 +2101,14 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev)
        /* we start off in DISABLED state */
        host->dpm_state = DISABLED;
 
-       if (mmc_host_enable(host->mmc) != 0) {
+       if (clk_enable(host->iclk) != 0) {
                clk_put(host->iclk);
                clk_put(host->fclk);
                goto err1;
        }
 
-       if (clk_enable(host->iclk) != 0) {
-               mmc_host_disable(host->mmc);
+       if (mmc_host_enable(host->mmc) != 0) {
+               clk_disable(host->iclk);
                clk_put(host->iclk);
                clk_put(host->fclk);
                goto err1;