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ASoC: rsnd: add workaround for SRC sync convert + DVC 

We couldn't use SRC sync convert mode together with DVC,
but we can use workaround for it.
This patch adds workaround and can use SRC sync convert + DVC

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>
This commit is contained in:
Kuninori Morimoto 2015-07-15 07:10:22 +00:00 committed by Mark Brown
parent a48e3f9747
commit 1a1bf58aaf
1 changed files with 32 additions and 11 deletions
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43
sound/soc/sh/rcar/src.c
View File

@ -616,6 +616,14 @@ static void rsnd_src_irq_ctrol_gen2(struct rsnd_mod *mod, int enable)
int_val = 0;
}
/*
* WORKAROUND
*
* ignore over flow error when rsnd_enable_sync_convert()
*/
if (rsnd_enable_sync_convert(src))
sys_int_val = sys_int_val & 0xffff;
rsnd_mod_write(mod, SRC_INT_ENABLE0, int_val);
rsnd_mod_bset(mod, SCU_SYS_INT_EN0, sys_int_mask, sys_int_val);
rsnd_mod_bset(mod, SCU_SYS_INT_EN1, sys_int_mask, sys_int_val);
@ -631,11 +639,22 @@ static void rsnd_src_error_clear_gen2(struct rsnd_mod *mod)
static bool rsnd_src_error_record_gen2(struct rsnd_mod *mod)
{
u32 val = OUF_SRC(rsnd_mod_id(mod));
struct rsnd_src *src = rsnd_mod_to_src(mod);
u32 val0, val1;
bool ret = false;
if ((rsnd_mod_read(mod, SCU_SYS_STATUS0) & val) ||
(rsnd_mod_read(mod, SCU_SYS_STATUS1) & val)) {
val0 = val1 = OUF_SRC(rsnd_mod_id(mod));
/*
* WORKAROUND
*
* ignore over flow error when rsnd_enable_sync_convert()
*/
if (rsnd_enable_sync_convert(src))
val0 = val0 & 0xffff;
if ((rsnd_mod_read(mod, SCU_SYS_STATUS0) & val0) ||
(rsnd_mod_read(mod, SCU_SYS_STATUS1) & val1)) {
struct rsnd_src *src = rsnd_mod_to_src(mod);
src->err++;
@ -651,7 +670,16 @@ static bool rsnd_src_error_record_gen2(struct rsnd_mod *mod)
static int _rsnd_src_start_gen2(struct rsnd_mod *mod,
struct rsnd_dai_stream *io)
{
u32 val = rsnd_io_to_mod_dvc(io) ? 0x01 : 0x11;
struct rsnd_src *src = rsnd_mod_to_src(mod);
u32 val;
/*
* WORKAROUND
*
* Enable SRC output if you want to use sync convert together with DVC
*/
val = (rsnd_io_to_mod_dvc(io) && !rsnd_enable_sync_convert(src)) ?
0x01 : 0x11;
rsnd_mod_write(mod, SRC_CTRL, val);
@ -920,13 +948,6 @@ static int rsnd_src_pcm_new(struct rsnd_mod *mod,
if (!rsnd_rdai_is_clk_master(rdai))
return 0;
/*
* We can't use SRC sync convert
* if it has DVC
*/
if (rsnd_io_to_mod_dvc(io))
return 0;
/*
* enable sync convert
*/