From f5e0cec4495398b259b3ede7cbc3ce4bd0e1cef0 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 25 Feb 2011 16:58:38 +0100 Subject: [PATCH] mmc: sh_mmcif: support aggressive clock gating To support MMC aggressive clock gating the driver has to stop the interface clock when the .set_ios() method is called with .clock == 0. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Chris Ball --- drivers/mmc/host/sh_mmcif.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c index aea86262ed66..af97015a2fc7 100644 --- a/drivers/mmc/host/sh_mmcif.c +++ b/drivers/mmc/host/sh_mmcif.c @@ -844,15 +844,15 @@ static void sh_mmcif_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) struct sh_mmcif_host *host = mmc_priv(mmc); struct sh_mmcif_plat_data *p = host->pd->dev.platform_data; - if (ios->power_mode == MMC_POWER_OFF) { - /* clock stop */ - sh_mmcif_clock_control(host, 0); - if (p->down_pwr) - p->down_pwr(host->pd); - return; - } else if (ios->power_mode == MMC_POWER_UP) { + if (ios->power_mode == MMC_POWER_UP) { if (p->set_pwr) p->set_pwr(host->pd, ios->power_mode); + } else if (ios->power_mode == MMC_POWER_OFF || !ios->clock) { + /* clock stop */ + sh_mmcif_clock_control(host, 0); + if (ios->power_mode == MMC_POWER_OFF && p->down_pwr) + p->down_pwr(host->pd); + return; } if (ios->clock)