Patch "mmc: tegra: properly disable card clock" has been added to the 4.5-stable tree

Patch "mmc: tegra: properly disable card clock" has been added to the 4.5-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    mmc: tegra: properly disable card clock

to the 4.5-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     mmc-tegra-properly-disable-card-clock.patch
and it can be found in the queue-4.5 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 3491b69045b1926a198ba70dc1296ca253f2fbdd Mon Sep 17 00:00:00 2001
From: Lucas Stach <dev@lynxeye.de>
Date: Mon, 29 Feb 2016 21:56:24 +0100
Subject: mmc: tegra: properly disable card clock

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);


Patches currently in stable-queue which might be from dev@lynxeye.de are

queue-4.5/mmc-tegra-properly-disable-card-clock.patch
queue-4.5/mmc-tegra-disable-uhs-i-modes-for-tegra114.patch