On SDM845 SPI uses hardware-provided chip select, while specifying
cs-gpio makes the driver request GPIO pin, which on DB845c conflicts
with the normal host controllers pinctrl entry.

Drop the cs-gpios property to restore SPI functionality.

Fixes: cb29e7106d4e ("arm64: dts: qcom: db845c: Add support for MCP2517FD")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/sdm845-db845c.dts | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
index ce23f87e0316..ad283a79bcdb 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
+++ b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
@@ -850,7 +850,6 @@ &spi0 {
 	status = "okay";
 	pinctrl-names = "default";
 	pinctrl-0 = <&qup_spi0_default>;
-	cs-gpios = <&tlmm 3 GPIO_ACTIVE_LOW>;
 
 	can@0 {
 		compatible = "microchip,mcp2517fd";

-- 
2.47.3

On 12/31/25 12:35 AM, Dmitry Baryshkov wrote:
> On SDM845 SPI uses hardware-provided chip select, while specifying
> cs-gpio makes the driver request GPIO pin, which on DB845c conflicts
> with the normal host controllers pinctrl entry.
> 
> Drop the cs-gpios property to restore SPI functionality.
> 
> Fixes: cb29e7106d4e ("arm64: dts: qcom: db845c: Add support for MCP2517FD")
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

Konrad