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Subject[PATCH v16 40/40] ARM: tegra20/30: Disable unused host1x hardware
Date
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 7b69ffc57abe..8010b40d7377 100644
--- a/arch/arm/boot/dts/tegra20.dtsi
+++ b/arch/arm/boot/dts/tegra20.dtsi
@@ -59,6 +59,7 @@ mpe@54040000 {
reset-names = "mpe";
power-domains = <&pd_mpe>;
operating-points-v2 = <&mpe_dvfs_opp_table>;
+ status = "disabled";
};

vi@54080000 {
@@ -70,6 +71,7 @@ vi@54080000 {
reset-names = "vi";
power-domains = <&pd_venc>;
operating-points-v2 = <&vi_dvfs_opp_table>;
+ status = "disabled";
};

epp@540c0000 {
@@ -81,6 +83,7 @@ epp@540c0000 {
reset-names = "epp";
power-domains = <&pd_core>;
operating-points-v2 = <&epp_dvfs_opp_table>;
+ 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 96d1c5688248..c8b22ec30ef0 100644
--- a/arch/arm/boot/dts/tegra30.dtsi
+++ b/arch/arm/boot/dts/tegra30.dtsi
@@ -145,6 +145,8 @@ mpe@54040000 {
operating-points-v2 = <&mpe_dvfs_opp_table>;

iommus = <&mc TEGRA_SWGROUP_MPE>;
+
+ status = "disabled";
};

vi@54080000 {
@@ -158,6 +160,8 @@ vi@54080000 {
operating-points-v2 = <&vi_dvfs_opp_table>;

iommus = <&mc TEGRA_SWGROUP_VI>;
+
+ status = "disabled";
};

epp@540c0000 {
@@ -171,6 +175,8 @@ epp@540c0000 {
operating-points-v2 = <&epp_dvfs_opp_table>;

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 {
--
2.33.1
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