ARM: tegra20/30: Disable unused host1x hardware

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>
Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
index 4068952..c8f2061 100644 (file)
--- a/arch/arm/boot/dts/tegra20.dtsi
+++ b/arch/arm/boot/dts/tegra20.dtsi
@@ -59,6 +59,7 @@
                        reset-names = "mpe";
                        power-domains = <&pd_mpe>;
                        operating-points-v2 = <&mpe_dvfs_opp_table>;
+                       status = "disabled";
                };
 
                vi@54080000 {
@@ -70,6 +71,7 @@
                        reset-names = "vi";
                        power-domains = <&pd_venc>;
                        operating-points-v2 = <&vi_dvfs_opp_table>;
+                       status = "disabled";
                };
 
                epp@540c0000 {
@@ -81,6 +83,7 @@
                        reset-names = "epp";
                        power-domains = <&pd_core>;
                        operating-points-v2 = <&epp_dvfs_opp_table>;
+                       status = "disabled";
                };
 
                isp@54100000 {
@@ -91,6 +94,7 @@
                        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 b016088..dc1f863 100644 (file)
--- a/arch/arm/boot/dts/tegra30.dtsi
+++ b/arch/arm/boot/dts/tegra30.dtsi
@@ -145,6 +145,8 @@
                        operating-points-v2 = <&mpe_dvfs_opp_table>;
 
                        iommus = <&mc TEGRA_SWGROUP_MPE>;
+
+                       status = "disabled";
                };
 
                vi@54080000 {
@@ -158,6 +160,8 @@
                        operating-points-v2 = <&vi_dvfs_opp_table>;
 
                        iommus = <&mc TEGRA_SWGROUP_VI>;
+
+                       status = "disabled";
                };
 
                epp@540c0000 {
@@ -171,6 +175,8 @@
                        operating-points-v2 = <&epp_dvfs_opp_table>;
 
                        iommus = <&mc TEGRA_SWGROUP_EPP>;
+
+                       status = "disabled";
                };
 
                isp@54100000 {
@@ -183,6 +189,8 @@
                        power-domains = <&pd_venc>;
 
                        iommus = <&mc TEGRA_SWGROUP_ISP>;
+
+                       status = "disabled";
                };
 
                gr2d@54140000 {