diff options
| author | Jörg Krause <joerg.krause@embedded.rocks> | 2017-01-13 21:44:28 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2017-01-17 18:19:36 +0000 |
| commit | b25658ed7d24cd8b1f9a72148e80e216b6a0c17a (patch) | |
| tree | 83e19bcd6583ce3aa7bb945105bdda94fd85db84 /sound/soc/mxs | |
| parent | a5de5b74a50113564a1e0850e2da96c37c35e55d (diff) | |
ASoC: mxs-saif: fix setting SAIF1 register
If SAIF0 is used in master and SAIF1 in slave mode setting the SAIF1
register in mxs_saif_set_dai_fmt() does not have any effect on the
interface as the clk gate needs to be cleared before the register can be
written.
Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/mxs')
| -rw-r--r-- | sound/soc/mxs/mxs-saif.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c index a002ab892772..9012a2036131 100644 --- a/sound/soc/mxs/mxs-saif.c +++ b/sound/soc/mxs/mxs-saif.c @@ -299,6 +299,16 @@ static int mxs_saif_set_dai_fmt(struct snd_soc_dai *cpu_dai, unsigned int fmt) return -EBUSY; } + /* If SAIF1 is configured as slave, the clk gate needs to be cleared + * before the register can be written. + */ + if (saif->id != saif->master_id) { + __raw_writel(BM_SAIF_CTRL_SFTRST, + saif->base + SAIF_CTRL + MXS_CLR_ADDR); + __raw_writel(BM_SAIF_CTRL_CLKGATE, + saif->base + SAIF_CTRL + MXS_CLR_ADDR); + } + scr0 = __raw_readl(saif->base + SAIF_CTRL); scr0 = scr0 & ~BM_SAIF_CTRL_BITCLK_EDGE & ~BM_SAIF_CTRL_LRCLK_POLARITY \ & ~BM_SAIF_CTRL_JUSTIFY & ~BM_SAIF_CTRL_DELAY; |