This is a note to let you know that I've just added the patch titled clk: core: Force setting the phase delay when no change to the 4.8-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: clk-core-force-setting-the-phase-delay-when-no-change.patch and it can be found in the queue-4.8 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 3174b0c9a62bb3738b4a2a506b8a075d4430e353 Mon Sep 17 00:00:00 2001 From: Jean-Francois Moine <moinejf@xxxxxxx> Date: Wed, 24 Aug 2016 08:32:51 +0200 Subject: clk: core: Force setting the phase delay when no change From: Jean-Francois Moine <moinejf@xxxxxxx> commit 3174b0c9a62bb3738b4a2a506b8a075d4430e353 upstream. This patch reverts commit 023bd7166be0 ("clk: skip unnecessary set_phase if nothing to do"), fixing two problems: * in some SoCs, the hardware phase delay depends on the rate ratio of the clock and its parent. So, changing this ratio may imply to set new hardware values, even if the logical delay is the same. * when the delay was the same as previously, an error was returned. Signed-off-by: Jean-Francois Moine <moinejf@xxxxxxx> Fixes: 023bd7166be0 ("clk: skip unnecessary set_phase if nothing to do") Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/clk/clk.c | 5 ----- 1 file changed, 5 deletions(-) --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -1908,10 +1908,6 @@ int clk_set_phase(struct clk *clk, int d clk_prepare_lock(); - /* bail early if nothing to do */ - if (degrees == clk->core->phase) - goto out; - trace_clk_set_phase(clk->core, degrees); if (clk->core->ops->set_phase) @@ -1922,7 +1918,6 @@ int clk_set_phase(struct clk *clk, int d if (!ret) clk->core->phase = degrees; -out: clk_prepare_unlock(); return ret; Patches currently in stable-queue which might be from moinejf@xxxxxxx are queue-4.8/clk-core-force-setting-the-phase-delay-when-no-change.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html