This is a note to let you know that I've just added the patch titled clk: sunxi-ng: sun5i: Fix bit offset of audio PLL post-divider to the 4.14-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-sunxi-ng-sun5i-fix-bit-offset-of-audio-pll-post-divider.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From foo@baz Wed Dec 20 18:17:52 CET 2017 From: Chen-Yu Tsai <wens@xxxxxxxx> Date: Thu, 12 Oct 2017 16:36:57 +0800 Subject: clk: sunxi-ng: sun5i: Fix bit offset of audio PLL post-divider From: Chen-Yu Tsai <wens@xxxxxxxx> [ Upstream commit d51fe3ba9773c8b6fc79f82bbe75d64baf604292 ] The post-divider for the audio PLL is in bits [29:26], as specified in the user manual, not [19:16] as currently programmed in the code. The post-divider has a default register value of 2, i.e. a divider of 3. This means the clock rate fed to the audio codec would be off. This was discovered when porting sigma-delta modulation for the PLL to sun5i, which needs the post-divider to be 1. Fix the bit offset, so we do actually force the post-divider to a certain value. Fixes: 5e73761786d6 ("clk: sunxi-ng: Add sun5i CCU driver") Signed-off-by: Chen-Yu Tsai <wens@xxxxxxxx> Signed-off-by: Maxime Ripard <maxime.ripard@xxxxxxxxxxxxxxxxxx> Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/clk/sunxi-ng/ccu-sun5i.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/clk/sunxi-ng/ccu-sun5i.c +++ b/drivers/clk/sunxi-ng/ccu-sun5i.c @@ -982,8 +982,8 @@ static void __init sun5i_ccu_init(struct /* Force the PLL-Audio-1x divider to 4 */ val = readl(reg + SUN5I_PLL_AUDIO_REG); - val &= ~GENMASK(19, 16); - writel(val | (3 << 16), reg + SUN5I_PLL_AUDIO_REG); + val &= ~GENMASK(29, 26); + writel(val | (3 << 26), reg + SUN5I_PLL_AUDIO_REG); /* * Use the peripheral PLL as the AHB parent, instead of CPU / Patches currently in stable-queue which might be from wens@xxxxxxxx are queue-4.14/clk-sunxi-ng-nm-check-if-requested-rate-is-supported-by-fractional-clock.patch queue-4.14/clk-sunxi-ng-sun6i-rename-hdmi-ddc-clock-to-avoid-name-collision.patch queue-4.14/clk-sunxi-ng-sun5i-fix-bit-offset-of-audio-pll-post-divider.patch