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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Vidya Sagar <vidyas@nvidia.com>,
	Jon Hunter <jonathanh@nvidia.com>,
	Thierry Reding <treding@nvidia.com>,
	Sasha Levin <sashal@kernel.org>,
	devicetree@vger.kernel.org, linux-tegra@vger.kernel.org
Subject: [PATCH AUTOSEL 5.10 069/176] arm64: tegra: Fix Tegra194 PCIe EP compatible string
Date: Thu,  9 Sep 2021 07:49:31 -0400	[thread overview]
Message-ID: <20210909115118.146181-69-sashal@kernel.org> (raw)
In-Reply-To: <20210909115118.146181-1-sashal@kernel.org>

From: Vidya Sagar <vidyas@nvidia.com>

[ Upstream commit bf2942a8b7c38e8cc2d5157b4f0323d7f4e5ec71 ]

The initialization sequence performed by the generic platform driver
pcie-designware-plat.c for a DWC based implementation doesn't work for
Tegra194. Tegra194 has a different initialization sequence requirement
which can only be satisfied by the Tegra194 specific platform driver
pcie-tegra194.c. So, remove the generic compatible string "snps,dw-pcie-ep"
from Tegra194's endpoint controller nodes.

Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/nvidia/tegra194.dtsi | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
index 6946fb210e48..9b5007e5f790 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
@@ -1976,7 +1976,7 @@ pcie@141a0000 {
 	};
 
 	pcie_ep@14160000 {
-		compatible = "nvidia,tegra194-pcie-ep", "snps,dw-pcie-ep";
+		compatible = "nvidia,tegra194-pcie-ep";
 		power-domains = <&bpmp TEGRA194_POWER_DOMAIN_PCIEX4A>;
 		reg = <0x00 0x14160000 0x0 0x00020000>, /* appl registers (128K)      */
 		      <0x00 0x36040000 0x0 0x00040000>, /* iATU_DMA reg space (256K)  */
@@ -2008,7 +2008,7 @@ pcie_ep@14160000 {
 	};
 
 	pcie_ep@14180000 {
-		compatible = "nvidia,tegra194-pcie-ep", "snps,dw-pcie-ep";
+		compatible = "nvidia,tegra194-pcie-ep";
 		power-domains = <&bpmp TEGRA194_POWER_DOMAIN_PCIEX8B>;
 		reg = <0x00 0x14180000 0x0 0x00020000>, /* appl registers (128K)      */
 		      <0x00 0x38040000 0x0 0x00040000>, /* iATU_DMA reg space (256K)  */
@@ -2040,7 +2040,7 @@ pcie_ep@14180000 {
 	};
 
 	pcie_ep@141a0000 {
-		compatible = "nvidia,tegra194-pcie-ep", "snps,dw-pcie-ep";
+		compatible = "nvidia,tegra194-pcie-ep";
 		power-domains = <&bpmp TEGRA194_POWER_DOMAIN_PCIEX8A>;
 		reg = <0x00 0x141a0000 0x0 0x00020000>, /* appl registers (128K)      */
 		      <0x00 0x3a040000 0x0 0x00040000>, /* iATU_DMA reg space (256K)  */
-- 
2.30.2


       reply	other threads:[~2021-09-09 12:36 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20210909115118.146181-1-sashal@kernel.org>
2021-09-09 11:49 ` Sasha Levin [this message]
2021-09-09 11:49 ` [PATCH AUTOSEL 5.10 077/176] media: tegra-cec: Handle errors of clk_prepare_enable() Sasha Levin
2021-09-09 11:50 ` [PATCH AUTOSEL 5.10 108/176] ARM: tegra: acer-a500: Remove bogus USB VBUS regulators Sasha Levin
2021-09-09 11:50 ` [PATCH AUTOSEL 5.10 109/176] ARM: tegra: tamonten: Fix UART pad setting Sasha Levin
2021-09-09 11:50 ` [PATCH AUTOSEL 5.10 110/176] arm64: tegra: Fix compatible string for Tegra132 CPUs Sasha Levin

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