drm/msm/dp: unregister audio driver during unbind
stable inclusion from stable-v5.10.181 commit eaf9394ed79c8913322333c627ff63dc56925eb6 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8GJZJ Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=eaf9394ed79c8913322333c627ff63dc56925eb6 -------------------------------- [ Upstream commit 85c63628 ] while binding the code always registers a audio driver, however there is no corresponding unregistration done in unbind. This leads to multiple redundant audio platform devices if dp_display_bind and dp_display_unbind happens multiple times during startup. On X13s platform this resulted in 6 to 9 audio codec device instead of just 3 codec devices for 3 dp ports. Fix this by unregistering codecs on unbind. Signed-off-by:Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Fixes: d13e36d7 ("drm/msm/dp: add audio support for Display Port on MSM") Reviewed-by:
Abhinav Kumar <quic_abhinavk@quicinc.com> Patchwork: https://patchwork.freedesktop.org/patch/533324/ Link: https://lore.kernel.org/r/20230421145657.12186-1-srinivas.kandagatla@linaro.org Signed-off-by:
Abhinav Kumar <quic_abhinavk@quicinc.com> Signed-off-by:
Sasha Levin <sashal@kernel.org> Signed-off-by:
sanglipeng <sanglipeng1@jd.com> (cherry picked from commit c43344d8)
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