diff options
| author | Guennadi Liakhovetski <g.liakhovetski@gmx.de> | 2011-02-25 16:58:38 +0100 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2011-03-16 12:30:25 -0400 |
| commit | f5e0cec4495398b259b3ede7cbc3ce4bd0e1cef0 (patch) | |
| tree | 1ba09ad3756365de0fcd64185592014e33e5376e /drivers/mmc/host | |
| parent | b676f0391a5f6816c047cbd1e2ad2a897f3c161a (diff) | |
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 <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc/host')
| -rw-r--r-- | drivers/mmc/host/sh_mmcif.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c index aea86262ed6..af97015a2fc 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) { + 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 (p->down_pwr) + if (ios->power_mode == MMC_POWER_OFF && p->down_pwr) p->down_pwr(host->pd); return; - } else if (ios->power_mode == MMC_POWER_UP) { - if (p->set_pwr) - p->set_pwr(host->pd, ios->power_mode); } if (ios->clock) |