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 <kuninori.morimoto.gx@renesas.com> Tested-by: Keita Kobayashi <keita.kobayashi.ym@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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@ -124,6 +124,14 @@ static void rsnd_src_soft_reset(struct rsnd_mod *mod)
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rsnd_mod_write(mod, SRC_SWRSR, 1);
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}
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#define rsnd_src_initialize_lock(mod) __rsnd_src_initialize_lock(mod, 1)
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#define rsnd_src_initialize_unlock(mod) __rsnd_src_initialize_lock(mod, 0)
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static void __rsnd_src_initialize_lock(struct rsnd_mod *mod, u32 enable)
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{
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rsnd_mod_write(mod, SRC_SRCIR, enable);
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}
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static struct dma_chan *rsnd_src_dma_req(struct rsnd_dai_stream *io,
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struct rsnd_mod *mod)
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{
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@ -362,17 +370,13 @@ static int rsnd_src_init(struct rsnd_mod *mod,
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rsnd_src_soft_reset(mod);
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rsnd_src_initialize_lock(mod);
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src->err = 0;
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/* reset sync convert_rate */
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src->sync.val = 0;
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/*
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* Initialize the operation of the SRC internal circuits
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* see rsnd_src_start()
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*/
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rsnd_mod_write(mod, SRC_SRCIR, 1);
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return 0;
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}
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@ -399,11 +403,7 @@ static int rsnd_src_quit(struct rsnd_mod *mod,
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static int rsnd_src_start(struct rsnd_mod *mod)
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{
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/*
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* Cancel the initialization and operate the SRC function
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* see rsnd_src_init()
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*/
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rsnd_mod_write(mod, SRC_SRCIR, 0);
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rsnd_src_initialize_unlock(mod);
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return 0;
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}
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