MPE, VI, EPP and ISP were never used and we don't have drivers for them. Since these modules are enabled by default in a device-tree, a device is created for them, blocking voltage scaling because there is no driver to bind, and thus, state of PMC driver is never synced. Disable them.
Signed-off-by: Dmitry Osipenko digetx@gmail.com --- arch/arm/boot/dts/tegra20.dtsi | 4 ++++ arch/arm/boot/dts/tegra30.dtsi | 8 ++++++++ 2 files changed, 12 insertions(+)
diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi index 8ab77583846b..6eb13da7f91f 100644 --- a/arch/arm/boot/dts/tegra20.dtsi +++ b/arch/arm/boot/dts/tegra20.dtsi @@ -59,6 +59,7 @@ mpe@54040000 { reset-names = "mpe"; operating-points-v2 = <&mpe_dvfs_opp_table>; power-domains = <&pd_mpe>; + status = "disabled"; };
vi@54080000 { @@ -70,6 +71,7 @@ vi@54080000 { reset-names = "vi"; operating-points-v2 = <&vi_dvfs_opp_table>; power-domains = <&pd_venc>; + status = "disabled"; };
epp@540c0000 { @@ -81,6 +83,7 @@ epp@540c0000 { reset-names = "epp"; operating-points-v2 = <&epp_dvfs_opp_table>; power-domains = <&pd_core>; + status = "disabled"; };
isp@54100000 { @@ -91,6 +94,7 @@ isp@54100000 { resets = <&tegra_car 23>; reset-names = "isp"; power-domains = <&pd_venc>; + status = "disabled"; };
gr2d@54140000 { diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi index 58ef4983e511..61f74b7879bb 100644 --- a/arch/arm/boot/dts/tegra30.dtsi +++ b/arch/arm/boot/dts/tegra30.dtsi @@ -145,6 +145,8 @@ mpe@54040000 { power-domains = <&pd_mpe>;
iommus = <&mc TEGRA_SWGROUP_MPE>; + + status = "disabled"; };
vi@54080000 { @@ -158,6 +160,8 @@ vi@54080000 { power-domains = <&pd_venc>;
iommus = <&mc TEGRA_SWGROUP_VI>; + + status = "disabled"; };
epp@540c0000 { @@ -171,6 +175,8 @@ epp@540c0000 { power-domains = <&pd_heg>;
iommus = <&mc TEGRA_SWGROUP_EPP>; + + status = "disabled"; };
isp@54100000 { @@ -183,6 +189,8 @@ isp@54100000 { power-domains = <&pd_venc>;
iommus = <&mc TEGRA_SWGROUP_ISP>; + + status = "disabled"; };
gr2d@54140000 {