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authorDerek Fang <derek.fang@realtek.com>2020-02-18 21:51:51 +0800
committerMark Brown <broonie@kernel.org>2020-02-18 22:23:24 +0000
commitebbfabc16d23dfd20eecd4b6e68212fec37ae7c6 (patch)
treed6a60a1f68608efa5774bc1c65ba44f647f39e7c /include/sound
parent70368106467cd8c420176bf3ab0acc797f6584bf (diff)
downloadlinux-ebbfabc16d23dfd20eecd4b6e68212fec37ae7c6.tar.bz2
ASoC: rt5682: Add CCF usage for providing I2S clks
There is a need to use RT5682 as DAI clock master for other codecs within a platform, which means that the DAI clocks are required to remain, regardless of whether the RT5682 is actually running playback/capture. The RT5682 CCF basic functions are implemented almost by the existing internal functions and asoc apis. It needs a clk provider (rt5682 mclk) to generate the bclk and wclk outputs. The RT5682 CCF supports and restricts as below: 1. Fmt of DAI-AIF1 must be configured to master before using CCF. 2. Only accept a 48MHz clk as the clk provider. 3. Only provide a 48kHz wclk and a set of multiples of wclk as bclk. There are some temporary limitations in this patch until a better implementation. Signed-off-by: Derek Fang <derek.fang@realtek.com> Link: https://lore.kernel.org/r/1582033912-6841-1-git-send-email-derek.fang@realtek.com Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/sound')
-rw-r--r--include/sound/rt5682.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/sound/rt5682.h b/include/sound/rt5682.h
index bc2c31734df1..6bf0e3581056 100644
--- a/include/sound/rt5682.h
+++ b/include/sound/rt5682.h
@@ -24,6 +24,12 @@ enum rt5682_jd_src {
RT5682_JD1,
};
+enum rt5682_dai_clks {
+ RT5682_DAI_WCLK_IDX,
+ RT5682_DAI_BCLK_IDX,
+ RT5682_DAI_NUM_CLKS,
+};
+
struct rt5682_platform_data {
int ldo1_en; /* GPIO for LDO1_EN */
@@ -32,6 +38,8 @@ struct rt5682_platform_data {
enum rt5682_dmic1_clk_pin dmic1_clk_pin;
enum rt5682_jd_src jd_src;
unsigned int btndet_delay;
+
+ const char *dai_clk_names[RT5682_DAI_NUM_CLKS];
};
#endif