From: Srinivas Kandagatla srinivas.kandagatla@linaro.org

[ Upstream commit a4a3203426f4b67535d6442ddc5dca8878a0678f ]

The order in which clocks are stopped matters as some of the clock like NPL are derived from MCLK.

Without this patch, Dragonboard RB5 DSP would crash with below error: qcom_q6v5_pas 17300000.remoteproc: fatal error received: ABT_dal.c:278:ABTimeout: AHB Bus hang is detected, Number of bus hang detected := 2 , addr0 = 0x3370000 , addr1 = 0x0!!!

Turn off fsgen first, followed by npl and then finally mclk, which is exactly the opposite order of enable sequence.

Fixes: 1dc3459009c3 ("ASoC: codecs: lpass: register mclk after runtime pm") Reported-by: Amit Pundir amit.pundir@linaro.org Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org Tested-by: Amit Pundir amit.pundir@linaro.org Link: https://lore.kernel.org/r/20230323110125.23790-1-srinivas.kandagatla@linaro.... Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Amit Pundir amit.pundir@linaro.org --- sound/soc/codecs/lpass-rx-macro.c | 4 ++-- sound/soc/codecs/lpass-tx-macro.c | 4 ++-- sound/soc/codecs/lpass-wsa-macro.c | 4 ++-- 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/sound/soc/codecs/lpass-rx-macro.c b/sound/soc/codecs/lpass-rx-macro.c index 8621cfabcf5b..1639f3b66fac 100644 --- a/sound/soc/codecs/lpass-rx-macro.c +++ b/sound/soc/codecs/lpass-rx-macro.c @@ -3667,9 +3667,9 @@ static int __maybe_unused rx_macro_runtime_suspend(struct device *dev) regcache_cache_only(rx->regmap, true); regcache_mark_dirty(rx->regmap);

- clk_disable_unprepare(rx->mclk); - clk_disable_unprepare(rx->npl); clk_disable_unprepare(rx->fsgen); + clk_disable_unprepare(rx->npl); + clk_disable_unprepare(rx->mclk);

return 0; } diff --git a/sound/soc/codecs/lpass-tx-macro.c b/sound/soc/codecs/lpass-tx-macro.c index e5611f655bed..d1d9d8d2df2d 100644 --- a/sound/soc/codecs/lpass-tx-macro.c +++ b/sound/soc/codecs/lpass-tx-macro.c @@ -1946,9 +1946,9 @@ static int __maybe_unused tx_macro_runtime_suspend(struct device *dev) regcache_cache_only(tx->regmap, true); regcache_mark_dirty(tx->regmap);

- clk_disable_unprepare(tx->mclk); - clk_disable_unprepare(tx->npl); clk_disable_unprepare(tx->fsgen); + clk_disable_unprepare(tx->npl); + clk_disable_unprepare(tx->mclk);

return 0; } diff --git a/sound/soc/codecs/lpass-wsa-macro.c b/sound/soc/codecs/lpass-wsa-macro.c index c012033fb69e..8ed48c86ccb3 100644 --- a/sound/soc/codecs/lpass-wsa-macro.c +++ b/sound/soc/codecs/lpass-wsa-macro.c @@ -2502,9 +2502,9 @@ static int __maybe_unused wsa_macro_runtime_suspend(struct device *dev) regcache_cache_only(wsa->regmap, true); regcache_mark_dirty(wsa->regmap);

- clk_disable_unprepare(wsa->mclk); - clk_disable_unprepare(wsa->npl); clk_disable_unprepare(wsa->fsgen); + clk_disable_unprepare(wsa->npl); + clk_disable_unprepare(wsa->mclk);

return 0; }