From: Kuninori Morimoto Date: Wed, 15 Jul 2015 07:12:00 +0000 (+0000) Subject: ASoC: rsnd: dvc: make sure DVC soft reset X-Git-Tag: firefly_0821_release~176^2~1082^2~13^2~8^2~21 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=636e4bad5cca947839c09d3e13ad6feeb7fa45da;p=firefly-linux-kernel-4.4.55.git ASoC: rsnd: dvc: make sure DVC soft reset Renesas SCU (Sampling Rate Convert Unit) includes SRC/CTU/MIX/DVC, and these have similar register. xxxRSR (Software reset Register) is one of them. These xxxRSR need be set to 1 to 0 when software reset. Current rsnd driver has src.c / dvc.c, and we will have mix.c. It is readable if these have same named function. This patch adds rsnd_dvc_soft_reset() and make sure it Signed-off-by: Kuninori Morimoto Tested-by: Keita Kobayashi Signed-off-by: Mark Brown --- diff --git a/sound/soc/sh/rcar/dvc.c b/sound/soc/sh/rcar/dvc.c index 8a61aa396306..24d07634c749 100644 --- a/sound/soc/sh/rcar/dvc.c +++ b/sound/soc/sh/rcar/dvc.c @@ -64,6 +64,12 @@ static const char * const dvc_ramp_rate[] = { "0.125 dB/8192 steps", /* 10111 */ }; +static void rsnd_dvc_soft_reset(struct rsnd_mod *mod) +{ + rsnd_mod_write(mod, DVC_SWRSR, 0); + rsnd_mod_write(mod, DVC_SWRSR, 1); +} + static void rsnd_dvc_volume_update(struct rsnd_dai_stream *io, struct rsnd_mod *mod) { @@ -160,15 +166,14 @@ static int rsnd_dvc_init(struct rsnd_mod *dvc_mod, rsnd_mod_hw_start(dvc_mod); + rsnd_dvc_soft_reset(dvc_mod); + /* * fixme * it doesn't support CTU/MIX */ rsnd_mod_write(dvc_mod, CMD_ROUTE_SLCT, route[src_id]); - rsnd_mod_write(dvc_mod, DVC_SWRSR, 0); - rsnd_mod_write(dvc_mod, DVC_SWRSR, 1); - rsnd_mod_write(dvc_mod, DVC_DVUIR, 1); rsnd_mod_write(dvc_mod, DVC_ADINR, rsnd_get_adinr(dvc_mod, io));