| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.5 201/238] mmc: tegra: properly disable card clock | Date | Sun, 10 Apr 2016 11:36:18 -0700 |
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4.5-stable review patch. If anyone has any objections, please let me know.
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From: Lucas Stach <dev@lynxeye.de>
commit 3491b69045b1926a198ba70dc1296ca253f2fbdd upstream.
The new code to do the clock rate setting externally to the SDMMC module has a shortcut to not propagate changes with a 0 rate to the CAR by simply bailing out. This breaks proper cutting of the card clock. Fix it by directly calling the correct sdhci function.
Fixes: a8e326a911d3 "mmc: tegra: implement module external clock change" Signed-off-by: Lucas Stach <dev@lynxeye.de> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/mmc/host/sdhci-tegra.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/mmc/host/sdhci-tegra.c +++ b/drivers/mmc/host/sdhci-tegra.c @@ -194,7 +194,7 @@ static void tegra_sdhci_set_clock(struct unsigned long host_clk; if (!clock) - return; + return sdhci_set_clock(host, clock); host_clk = tegra_host->ddr_signaling ? clock * 2 : clock; clk_set_rate(pltfm_host->clk, host_clk);
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