[PATCH v12 35/35] ARM: tegra20/30: Disable unused host1x hardware

From: Dmitry Osipenko <digetx@gmail.com>
To: "Thierry Reding" <thierry.reding@gmail.com>,
	"Jonathan Hunter" <jonathanh@nvidia.com>,
	"Ulf Hansson" <ulf.hansson@linaro.org>,
	"Viresh Kumar" <vireshk@kernel.org>,
	"Stephen Boyd" <sboyd@kernel.org>,
	"Peter De Schrijver" <pdeschrijver@nvidia.com>,
	"Mikko Perttunen" <mperttunen@nvidia.com>,
	"Peter Chen" <peter.chen@kernel.org>,
	"Lee Jones" <lee.jones@linaro.org>,
	"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
	"Nishanth Menon" <nm@ti.com>,
	"Adrian Hunter" <adrian.hunter@intel.com>,
	"Rob Herring" <robh+dt@kernel.org>,
	"Michael Turquette" <mturquette@baylibre.com>
Cc: linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org,
	linux-pm@vger.kernel.org, linux-usb@vger.kernel.org,
	linux-staging@lists.linux.dev, linux-pwm@vger.kernel.org,
	linux-mmc@vger.kernel.org, dri-devel@lists.freedesktop.org,
	devicetree@vger.kernel.org, linux-clk@vger.kernel.org,
	Mark Brown <broonie@kernel.org>,
	Vignesh Raghavendra <vigneshr@ti.com>,
	Richard Weinberger <richard@nod.at>,
	Miquel Raynal <miquel.raynal@bootlin.com>,
	Lucas Stach <dev@lynxeye.de>, Stefan Agner <stefan@agner.ch>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	David Heidelberg <david@ixit.cz>
Subject: [PATCH v12 35/35] ARM: tegra20/30: Disable unused host1x hardware
Date: Mon, 20 Sep 2021 21:11:45 +0300	[thread overview]
Message-ID: <20210920181145.19543-36-digetx@gmail.com> (raw)
In-Reply-To: <20210920181145.19543-1-digetx@gmail.com>

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 eb6e5518fb5f..05788c9cddc1 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 09cb1ab75312..f9613384a487 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 {
-- 
2.32.0

