From: Michal Suchanek Date: Wed, 12 Aug 2015 13:29:31 +0000 (+0200) Subject: mmc: sunxi: fix timeout in sunxi_mmc_oclk_onoff X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=7bb9c244356d2d45ac03cf65e55b035c5954d7de;p=openwrt%2Fstaging%2Fblogic.git mmc: sunxi: fix timeout in sunxi_mmc_oclk_onoff The 250ms timeout is too short. On my system enabling the oclk takes under 50ms and disabling slightly over 100ms when idle. Under load disabling the clock can take over 350ms. This does not make mmc clock gating look like good option to have on sunxi but the system should not crash with mmc clock gating enabled nonetheless. This patch sets the timeout to 750ms. Signed-off-by: Michal Suchanek Acked-by: Hans de Goede Signed-off-by: Ulf Hansson --- diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c index 4d3e1ffe5508..a7b7a6771598 100644 --- a/drivers/mmc/host/sunxi-mmc.c +++ b/drivers/mmc/host/sunxi-mmc.c @@ -595,7 +595,7 @@ static irqreturn_t sunxi_mmc_handle_manual_stop(int irq, void *dev_id) static int sunxi_mmc_oclk_onoff(struct sunxi_mmc_host *host, u32 oclk_en) { - unsigned long expire = jiffies + msecs_to_jiffies(250); + unsigned long expire = jiffies + msecs_to_jiffies(750); u32 rval; rval = mmc_readl(host, REG_CLKCR);