Patch "ASoC: rcar: ssi: don't set SSICR.CKDV = 000 with SSIWSR.CONT" has been added to the 4.4-stable tree

Patch "ASoC: rcar: ssi: don't set SSICR.CKDV = 000 with SSIWSR.CONT" has been added to the 4.4-stable tree

[gregkh]

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

    ASoC: rcar: ssi: don't set SSICR.CKDV = 000 with SSIWSR.CONT

to the 4.4-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:
     asoc-rcar-ssi-don-t-set-ssicr.ckdv-000-with-ssiwsr.cont.patch
and it can be found in the queue-4.4 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 foo@baz Mon Mar 19 09:58:12 CET 2018
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Wed, 22 Mar 2017 04:02:43 +0000
Subject: ASoC: rcar: ssi: don't set SSICR.CKDV = 000 with SSIWSR.CONT

From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>


[ Upstream commit 6b8530cc056efd4a11b034ca5b1e9f7e9563f553 ]

R-Car Datasheet is indicating "SSICR.CKDV = 000 is invalid when
SSIWSR.WS_MODE = 1 or SSIWSR.CONT = 1".
Current driver will set CONT, thus, we shouldn't use CKDV = 000.
This patch fixup it.

Reported-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/sh/rcar/ssi.c |    9 +++++++++
 1 file changed, 9 insertions(+)

--- a/sound/soc/sh/rcar/ssi.c
+++ b/sound/soc/sh/rcar/ssi.c
@@ -143,6 +143,15 @@ static int rsnd_ssi_master_clk_start(str
 	for (j = 0; j < ARRAY_SIZE(ssi_clk_mul_table); j++) {
 
 		/*
+		 * It will set SSIWSR.CONT here, but SSICR.CKDV = 000
+		 * with it is not allowed. (SSIWSR.WS_MODE with
+		 * SSICR.CKDV = 000 is not allowed either).
+		 * Skip it. See SSICR.CKDV
+		 */
+		if (j == 0)
+			continue;
+
+		/*
 		 * this driver is assuming that
 		 * system word is 64fs (= 2 x 32bit)
 		 * see rsnd_ssi_init()


Patches currently in stable-queue which might be from kuninori.morimoto.gx@renesas.com are

queue-4.4/asoc-rcar-ssi-don-t-set-ssicr.ckdv-000-with-ssiwsr.cont.patch