From 6b8530cc056efd4a11b034ca5b1e9f7e9563f553 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Wed, 22 Mar 2017 04:02:43 +0000 Subject: [PATCH] ASoC: rcar: ssi: don't set SSICR.CKDV = 000 with SSIWSR.CONT 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 Signed-off-by: Kuninori Morimoto Tested-by: Hiroyuki Yokoyama Signed-off-by: Mark Brown --- sound/soc/sh/rcar/ssi.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c index 411bda2387ad..135c5669f796 100644 --- a/sound/soc/sh/rcar/ssi.c +++ b/sound/soc/sh/rcar/ssi.c @@ -227,6 +227,15 @@ static int rsnd_ssi_master_clk_start(struct rsnd_mod *mod, */ 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 32bit x chan -- 2.20.1