From: Kuninori Morimoto Date: Wed, 15 Jul 2015 07:13:47 +0000 (+0000) Subject: ASoC: rsnd: add rsnd_src_initialize_lock/unlock() X-Git-Tag: firefly_0821_release~176^2~1082^2~13^2~8^2~15 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d1ade514e84ea55cba999edb04cb88daa4da94b8;p=firefly-linux-kernel-4.4.55.git ASoC: rsnd: add rsnd_src_initialize_lock/unlock() Renesas SCU (Sampling Rate Convert Unit) includes SRC/CTU/MIX/DVC, and these have similar register. xxxIR (Initialization Register) is one of them. These xxxIR need be set to 1 during initialization. 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_src_initialize_lock/unlock() 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/src.c b/sound/soc/sh/rcar/src.c index 74ab644c688e..b3d965ee9b77 100644 --- a/sound/soc/sh/rcar/src.c +++ b/sound/soc/sh/rcar/src.c @@ -124,6 +124,14 @@ static void rsnd_src_soft_reset(struct rsnd_mod *mod) rsnd_mod_write(mod, SRC_SWRSR, 1); } + +#define rsnd_src_initialize_lock(mod) __rsnd_src_initialize_lock(mod, 1) +#define rsnd_src_initialize_unlock(mod) __rsnd_src_initialize_lock(mod, 0) +static void __rsnd_src_initialize_lock(struct rsnd_mod *mod, u32 enable) +{ + rsnd_mod_write(mod, SRC_SRCIR, enable); +} + static struct dma_chan *rsnd_src_dma_req(struct rsnd_dai_stream *io, struct rsnd_mod *mod) { @@ -362,17 +370,13 @@ static int rsnd_src_init(struct rsnd_mod *mod, rsnd_src_soft_reset(mod); + rsnd_src_initialize_lock(mod); + src->err = 0; /* reset sync convert_rate */ src->sync.val = 0; - /* - * Initialize the operation of the SRC internal circuits - * see rsnd_src_start() - */ - rsnd_mod_write(mod, SRC_SRCIR, 1); - return 0; } @@ -399,11 +403,7 @@ static int rsnd_src_quit(struct rsnd_mod *mod, static int rsnd_src_start(struct rsnd_mod *mod) { - /* - * Cancel the initialization and operate the SRC function - * see rsnd_src_init() - */ - rsnd_mod_write(mod, SRC_SRCIR, 0); + rsnd_src_initialize_unlock(mod); return 0; }