From: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
This patch ensures that the clock has been stopped before
it calls tmio_mmc_set_clock().
The clock settings might be failed without this patch
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
---
v3 -> v4
- based on latest git://git.linaro.org/people/ulf.hansson/mmc.git#next
drivers/mmc/host/tmio_mmc_pio.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c
index ba45413..7289331 100644
--- a/drivers/mmc/host/tmio_mmc_pio.c
+++ b/drivers/mmc/host/tmio_mmc_pio.c
@@ -924,12 +924,14 @@ static void tmio_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
tmio_mmc_clk_stop(host);
break;
case MMC_POWER_UP:
+ tmio_mmc_clk_stop(host);
tmio_mmc_set_clock(host, ios->clock);
tmio_mmc_power_on(host, ios->vdd);
tmio_mmc_clk_start(host);
tmio_mmc_set_bus_width(host, ios->bus_width);
break;
case MMC_POWER_ON:
+ tmio_mmc_clk_stop(host);
tmio_mmc_set_clock(host, ios->clock);
tmio_mmc_clk_start(host);
tmio_mmc_set_bus_width(host, ios->bus_width);
@@ -1199,6 +1201,7 @@ int tmio_mmc_host_runtime_resume(struct device *dev)
tmio_mmc_clk_update(host);
if (host->clk_cache) {
+ tmio_mmc_clk_stop(host);
tmio_mmc_set_clock(host, host->clk_cache);
tmio_mmc_clk_start(host);
}
--
1.7.9.5
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