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authorSameer Pujar <spujar@nvidia.com>2021-01-07 10:36:10 +0530
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-03-04 09:39:29 +0100
commit94c28da48cc54f273f6b2dffaf890f7e6f5d668e (patch)
tree9ffbc299b41f8e2e602603cfb973c26bdd002e41 /scripts
parent23e895868b518f48eab7925aeb93aeeac3ac2594 (diff)
arm64: tegra: Add power-domain for Tegra210 HDA
commit 1e0ca5467445bc1f41a9e403d6161a22f313dae7 upstream. HDA initialization is failing occasionally on Tegra210 and following print is observed in the boot log. Because of this probe() fails and no sound card is registered. [16.800802] tegra-hda 70030000.hda: no codecs found! Codecs request a state change and enumeration by the controller. In failure cases this does not seem to happen as STATETS register reads 0. The problem seems to be related to the HDA codec dependency on SOR power domain. If it is gated during HDA probe then the failure is observed. Building Tegra HDA driver into kernel image avoids this failure but does not completely address the dependency part. Fix this problem by adding 'power-domains' DT property for Tegra210 HDA. Note that Tegra186 and Tegra194 HDA do this already. Fixes: 742af7e7a0a1 ("arm64: tegra: Add Tegra210 support") Depends-on: 96d1f078ff0 ("arm64: tegra: Add SOR power-domain for Tegra210") Cc: <stable@vger.kernel.org> Signed-off-by: Sameer Pujar <spujar@nvidia.com> Acked-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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