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arm64: dts: qcom: sc7280: Add MDSS_CORE reset to mdss

Like on other platforms, if the OS does not support recovering the state
left by the bootloader it needs access to MDSS_CORE, so that it can
clear the MDSS configuration.

Until now it seems no version of the bootloaders have done so, but e.g.
the Particle Tachyon ships with a bootloader that does leave the display
in a state that results in a series of iommu faults.

So let's provide the reset, to allow the OS to clear that state.

Signed-off-by: Bjorn Andersson <bjorn.andersson@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250811-sc7280-mdss-reset-v1-3-83ceff1d48de@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

authored by

Bjorn Andersson and committed by
Bjorn Andersson 9cdb77e3 c46d34c0

+2
+2
arch/arm64/boot/dts/qcom/sc7280.dtsi
··· 4847 4847 4848 4848 iommus = <&apps_smmu 0x900 0x402>; 4849 4849 4850 + resets = <&dispcc DISP_CC_MDSS_CORE_BCR>; 4851 + 4850 4852 #address-cells = <2>; 4851 4853 #size-cells = <2>; 4852 4854 ranges;