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[ Upstream commit75cb60d4f5] When opp-supported-hw is present under an OPP node, but no form of opp_set_supported_hw() has been called, that OPP is ignored by the API and marked as unsupported. Before Commitc928a05e44("drm/msm/adreno: Move speedbin mapping to device table"), an unknown speedbin would result in marking all OPPs as available, but it's better to avoid potentially overclocking the silicon - the GMU will simply refuse to power up the chip. Currently, the Adreno speedbin code does just that (AND returns an invalid error, (int)UINT_MAX). Fix that by defaulting to speedbin 0 (which is conveniently always bound to fuseval == 0). Fixes:c928a05e44("drm/msm/adreno: Move speedbin mapping to device table") Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org> Patchwork: https://patchwork.freedesktop.org/patch/559604/ Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Sasha Levin <sashal@kernel.org>