[PATCH v6 2/4] arm64: dts: qcom: sm8550: add UART11 node

[Alexandre Hamamdjian via B4 Relay <devnull+azkali.limited.gmail.com@kernel.org>]

From: Alexandre Hamamdjian <azkali.limited@gmail.com>

Add the QUPv3_2 SE3 UART (UART11) controller node and its default
pinctrl state to sm8550.dtsi, so boards with a peripheral wired to
that serial engine can enable it through &uart11.

The serial engine at 0x88c000 is already described as i2c11 and spi11,
so the UART node takes the same qup_opp_table_120mhz they use: it is
the same block behind the same GCC_QUPV3_WRAP2_S3_CLK, and its core
clock tops out at 120 MHz rather than the 100 MHz the other table
allows. TX and RX are biased pull-up, matching qup_uart14_default, so
the lines idle high on boards that do not fit external pull-ups.

Signed-off-by: Alexandre Hamamdjian <azkali.limited@gmail.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/sm8550.dtsi | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8550.dtsi b/arch/arm64/boot/dts/qcom/sm8550.dtsi
index 0e701e709235..fcbcf22ff951 100644
--- a/arch/arm64/boot/dts/qcom/sm8550.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8550.dtsi
@@ -1442,6 +1442,24 @@ &config_noc SLAVE_QUP_2 QCOM_ICC_TAG_ACTIVE_ONLY>,
 				status = "disabled";
 			};
 
+			uart11: serial@88c000 {
+				compatible = "qcom,geni-uart";
+				reg = <0 0x0088c000 0 0x4000>;
+				clock-names = "se";
+				clocks = <&gcc GCC_QUPV3_WRAP2_S3_CLK>;
+				interrupts = <GIC_SPI 585 IRQ_TYPE_LEVEL_HIGH 0>;
+				pinctrl-names = "default";
+				pinctrl-0 = <&qup_uart11_default>;
+				interconnects = <&clk_virt MASTER_QUP_CORE_2 QCOM_ICC_TAG_ALWAYS
+						 &clk_virt SLAVE_QUP_CORE_2 QCOM_ICC_TAG_ALWAYS>,
+						<&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
+						 &config_noc SLAVE_QUP_2 QCOM_ICC_TAG_ACTIVE_ONLY>;
+				interconnect-names = "qup-core", "qup-config";
+				operating-points-v2 = <&qup_opp_table_120mhz>;
+				power-domains = <&rpmhpd RPMHPD_CX>;
+				status = "disabled";
+			};
+
 			i2c12: i2c@890000 {
 				compatible = "qcom,geni-i2c";
 				reg = <0 0x00890000 0 0x4000>;
@@ -5478,6 +5496,14 @@ qup_uart7_default: qup-uart7-default-state {
 				bias-disable;
 			};
 
+			qup_uart11_default: qup-uart11-default-state {
+				/* TX, RX */
+				pins = "gpio70", "gpio71";
+				function = "qup2_se3";
+				drive-strength = <2>;
+				bias-pull-up;
+			};
+
 			qup_uart14_default: qup-uart14-default-state {
 				/* TX, RX */
 				pins = "gpio78", "gpio79";

-- 
2.55.0