diff mbox series

[5.15,13/33] ARM: dts: socfpga: change qspi to "intel,socfpga-qspi"

Message ID 20220429104052.729847451@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg Kroah-Hartman April 29, 2022, 10:42 a.m. UTC
From: Dinh Nguyen <dinguyen@kernel.org>

commit 36de991e93908f7ad5c2a0eac9c4ecf8b723fa4a upstream.

Because of commit 9cb2ff111712 ("spi: cadence-quadspi: Disable Auto-HW polling"),
which does a write to the CQSPI_REG_WR_COMPLETION_CTRL register
regardless of any condition. Well, the Cadence QuadSPI controller on
Intel's SoCFPGA platforms does not implement the
CQSPI_REG_WR_COMPLETION_CTRL register, thus a write to this register
results in a crash!

So starting with v5.16, I introduced the patch
98d948eb833 ("spi: cadence-quadspi: fix write completion support"),
which adds the dts compatible "intel,socfpga-qspi" that is specific for
versions that doesn't have the CQSPI_REG_WR_COMPLETION_CTRL register implemented.

Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
[IA: submitted for linux-5.15.y]
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/boot/dts/socfpga.dtsi                    |    2 +-
 arch/arm/boot/dts/socfpga_arria10.dtsi            |    2 +-
 arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi |    2 +-
 arch/arm64/boot/dts/intel/socfpga_agilex.dtsi     |    2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)
diff mbox series

Patch

--- a/arch/arm/boot/dts/socfpga.dtsi
+++ b/arch/arm/boot/dts/socfpga.dtsi
@@ -782,7 +782,7 @@ 
 		};
 
 		qspi: spi@ff705000 {
-			compatible = "cdns,qspi-nor";
+			compatible = "intel,socfpga-qspi", "cdns,qspi-nor";
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <0xff705000 0x1000>,
--- a/arch/arm/boot/dts/socfpga_arria10.dtsi
+++ b/arch/arm/boot/dts/socfpga_arria10.dtsi
@@ -756,7 +756,7 @@ 
 		};
 
 		qspi: spi@ff809000 {
-			compatible = "cdns,qspi-nor";
+			compatible = "intel,socfpga-qspi", "cdns,qspi-nor";
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <0xff809000 0x100>,
--- a/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
+++ b/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
@@ -594,7 +594,7 @@ 
 		};
 
 		qspi: spi@ff8d2000 {
-			compatible = "cdns,qspi-nor";
+			compatible =  "intel,socfpga-qspi", "cdns,qspi-nor";
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <0xff8d2000 0x100>,
--- a/arch/arm64/boot/dts/intel/socfpga_agilex.dtsi
+++ b/arch/arm64/boot/dts/intel/socfpga_agilex.dtsi
@@ -628,7 +628,7 @@ 
 		};
 
 		qspi: spi@ff8d2000 {
-			compatible = "cdns,qspi-nor";
+			compatible = "intel,socfpga-qspi", "cdns,qspi-nor";
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <0xff8d2000 0x100>,