Re: [PATCH 6/7] arm64: dts: Add ipq9574 SoC and AL02 board support

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On 1/13/2023 7:50 PM, Krzysztof Kozlowski wrote:
On 13/01/2023 14:29, Devi Priya wrote:
+
+	soc: soc@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0 0 0 0xffffffff>;
+		compatible = "simple-bus";
+
+		tlmm: pinctrl@1000000 {
+			compatible = "qcom,ipq9574-tlmm";
+			reg = <0x01000000 0x300000>;
+			interrupts = <GIC_SPI 208 IRQ_TYPE_LEVEL_HIGH>;
+			gpio-controller;
+			#gpio-cells = <2>;
+			gpio-ranges = <&tlmm 0 0 65>;
+			gpio-reserved-ranges = <59 1>;

Hm, why reserved ranges are in SoC?
As the gpio is forbidden on all ipq9574 boards, we have added it in SoC

Why it is forbidden on all boards? I guess it depends on the firmware
and this can differ, can't it?

This GPIO is protected and used by the TZ firmware and is forbidden on all the boards & firmware
Best regards,
Krzysztof

Regards,
Devi Priya



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