During mt8188_afe_init_clock(), mt8188_audsys_clk_register() was called
followed by several other devm functions. The caller of
mt8188_afe_init_clock() utilized devm_add_action_or_reset() to call
mt8188_afe_deinit_clock(). However, the order was incorrect, causing a
use-after-free issue during remove time.
At probe time, the order of calls was:
1. mt8188_audsys_clk_register
2. afe_priv->clk = devm_kcalloc
3. afe_priv->clk[i] = devm_clk_get
At remove time, the order of calls was:
1. mt8188_audsys_clk_unregister
3. free afe_priv->clk[i]
2. free afe_priv->clk
To resolve the problem, it's necessary to move devm_add_action_or_reset()
to the appropriate position so that the remove order can be 3->2->1.
Fixes: f6b026479b13 ("ASoC: mediatek: mt8188: support audio clock control")
Signed-off-by: Trevor Wu <trevor.wu@mediatek.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20230601033318.10408-2-trevor.wu@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
apll2_d4, apll12_div4, top_a2sys and top_aud_iec are possibly used in
the future. To prevent from breaking binding ABI after any mt8188 dts
upstream, add these clocks to clock list in advance.
Signed-off-by: Trevor Wu <trevor.wu@mediatek.com
Link: https://lore.kernel.org/r/20230510035526.18137-8-trevor.wu@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org
Currently, APLL is only used in ETDM module, so APLL and APLL tuner
don't need to be enabled when AFE is used. Integrate APLL control into
ETDM DAPM routes, so that APLL can be enabled when it is really required.
Signed-off-by: Trevor Wu <trevor.wu@mediatek.com
Link: https://lore.kernel.org/r/20230510035526.18137-5-trevor.wu@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org
Add audio clock wrapper and audio tuner control.
Signed-off-by: Trevor Wu <trevor.wu@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20230116034131.23943-8-trevor.wu@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
