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Subject[PATCH v2 01/12] ASoC: codecs: wsa-macro: handle swr_reset correctly
Date
Reset soundwire block on frame sync generation clock reset.
Without this we are hitting read/write timeouts randomly during
runtime pm.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
sound/soc/codecs/lpass-wsa-macro.c | 17 ++++-------------
1 file changed, 4 insertions(+), 13 deletions(-)

diff --git a/sound/soc/codecs/lpass-wsa-macro.c b/sound/soc/codecs/lpass-wsa-macro.c
index 27da6c6c3c5a..130d25b334ff 100644
--- a/sound/soc/codecs/lpass-wsa-macro.c
+++ b/sound/soc/codecs/lpass-wsa-macro.c
@@ -338,7 +338,6 @@ struct wsa_macro {
int ec_hq[WSA_MACRO_RX1 + 1];
u16 prim_int_users[WSA_MACRO_RX1 + 1];
u16 wsa_mclk_users;
- bool reset_swr;
unsigned long active_ch_mask[WSA_MACRO_MAX_DAIS];
unsigned long active_ch_cnt[WSA_MACRO_MAX_DAIS];
int rx_port_value[WSA_MACRO_RX_MAX];
@@ -2271,23 +2270,16 @@ static int wsa_swrm_clock(struct wsa_macro *wsa, bool enable)
wsa_macro_mclk_enable(wsa, true);

/* reset swr ip */
- if (wsa->reset_swr)
- regmap_update_bits(regmap,
- CDC_WSA_CLK_RST_CTRL_SWR_CONTROL,
- CDC_WSA_SWR_RST_EN_MASK,
- CDC_WSA_SWR_RST_ENABLE);
+ regmap_update_bits(regmap, CDC_WSA_CLK_RST_CTRL_SWR_CONTROL,
+ CDC_WSA_SWR_RST_EN_MASK, CDC_WSA_SWR_RST_ENABLE);

regmap_update_bits(regmap, CDC_WSA_CLK_RST_CTRL_SWR_CONTROL,
CDC_WSA_SWR_CLK_EN_MASK,
CDC_WSA_SWR_CLK_ENABLE);

/* Bring out of reset */
- if (wsa->reset_swr)
- regmap_update_bits(regmap,
- CDC_WSA_CLK_RST_CTRL_SWR_CONTROL,
- CDC_WSA_SWR_RST_EN_MASK,
- CDC_WSA_SWR_RST_DISABLE);
- wsa->reset_swr = false;
+ regmap_update_bits(regmap, CDC_WSA_CLK_RST_CTRL_SWR_CONTROL,
+ CDC_WSA_SWR_RST_EN_MASK, CDC_WSA_SWR_RST_DISABLE);
} else {
regmap_update_bits(regmap, CDC_WSA_CLK_RST_CTRL_SWR_CONTROL,
CDC_WSA_SWR_CLK_EN_MASK, 0);
@@ -2431,7 +2423,6 @@ static int wsa_macro_probe(struct platform_device *pdev)

dev_set_drvdata(dev, wsa);

- wsa->reset_swr = true;
wsa->dev = dev;

/* set MCLK and NPL rates */
--
2.21.0
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