ARM: dts: msm: Change pinctrl settings for BLSP1 UART3 for msmcobalt

Modify the sleep state settings for BLSP1 UART3 pins to optimize power
when the usecase isn't in play.

Change-Id: I1405a8561b1ecb2e3da87ed8b26fb087433a1c11
Signed-off-by: Girish Mahadevan <girishm@codeaurora.org>

2 files changed, 75 insertions, 19 deletions

diff --git a/arch/arm/boot/dts/qcom/msmcobalt-blsp.dtsi b/arch/arm/boot/dts/qcom/msmcobalt-blsp.dtsi
index 929a079c64c3..a660ea06795e 100644
--- a/arch/arm/boot/dts/qcom/msmcobalt-blsp.dtsi
+++ b/arch/arm/boot/dts/qcom/msmcobalt-blsp.dtsi
@@ -736,8 +736,10 @@
 		clocks = <&clock_gcc clk_gcc_blsp1_uart3_apps_clk>,
 		    <&clock_gcc clk_gcc_blsp1_ahb_clk>;
 		pinctrl-names = "sleep", "default";
-		pinctrl-0 = <&blsp1_uart3_sleep>;
-		pinctrl-1 = <&blsp1_uart3_active>;
+		pinctrl-0 = <&blsp1_uart3_tx_sleep>, <&blsp1_uart3_rxcts_sleep>,
+					<&blsp1_uart3_rfr_sleep>;
+		pinctrl-1 = <&blsp1_uart3_tx_active>,
+			<&blsp1_uart3_rxcts_active>, <&blsp1_uart3_rfr_active>;
 
 		qcom,msm-bus,name = "buart3";
 		qcom,msm-bus,num-cases = <2>;
diff --git a/arch/arm/boot/dts/qcom/msmcobalt-pinctrl.dtsi b/arch/arm/boot/dts/qcom/msmcobalt-pinctrl.dtsi
index 3975bc5d16f5..e5fd988dccce 100644
--- a/arch/arm/boot/dts/qcom/msmcobalt-pinctrl.dtsi
+++ b/arch/arm/boot/dts/qcom/msmcobalt-pinctrl.dtsi
@@ -1223,29 +1223,83 @@
 			};
 		};
 
-		blsp1_uart3_active: blsp1_uart3_active {
-			mux {
-				pins = "gpio45", "gpio46", "gpio47", "gpio48";
-				function = "blsp_uart3_a";
+		blsp1_uart3: blsp1_uart3 {
+			blsp1_uart3_tx_active: blsp1_uart3_tx_active {
+				mux {
+					pins = "gpio45";
+					function = "blsp_uart3_a";
+				};
+
+				config {
+					pins = "gpio45";
+					drive-strength = <2>;
+					bias-disable;
+				};
 			};
 
-			config {
-				pins = "gpio45", "gpio46", "gpio47", "gpio48";
-				drive-strength = <2>;
-				bias-disable;
+			blsp1_uart3_tx_sleep: blsp1_uart3_tx_sleep {
+				mux {
+					pins = "gpio45";
+					function = "gpio";
+				};
+
+				config {
+					pins = "gpio45";
+					drive-strength = <2>;
+					bias-pull-up;
+				};
 			};
-		};
 
-		blsp1_uart3_sleep: blsp1_uart3_sleep {
-			mux {
-				pins = "gpio45", "gpio46", "gpio47", "gpio48";
-				function = "gpio";
+			blsp1_uart3_rxcts_active: blsp1_uart3_rxcts_active {
+				mux {
+					pins = "gpio46", "gpio47";
+					function = "blsp_uart3_a";
+				};
+
+				config {
+					pins = "gpio46", "gpio47";
+					drive-strength = <2>;
+					bias-disable;
+				};
 			};
 
-			config {
-				pins = "gpio45", "gpio46", "gpio47", "gpio48";
-				drive-strength = <2>;
-				bias-pull-up;
+			blsp1_uart3_rxcts_sleep: blsp1_uart3_rxcts_sleep {
+				mux {
+					pins = "gpio46", "gpio47";
+					function = "gpio";
+				};
+
+				config {
+					pins = "gpio46", "gpio47";
+					drive-strength = <2>;
+					bias-no-pull;
+				};
+			};
+
+			blsp1_uart3_rfr_active: blsp1_uart3_rfr_active {
+				mux {
+					pins = "gpio48";
+					function = "blsp_uart3_a";
+				};
+
+				config {
+					pins = "gpio48";
+					drive-strength = <2>;
+					bias-disable;
+				};
+			};
+
+			blsp1_uart3_rfr_sleep: blsp1_uart3_rfr_sleep {
+				mux {
+					pins = "gpio48";
+					function = "gpio";
+				};
+
+				config {
+					pins = "gpio48";
+					drive-strength = <2>;
+					bias-no-pull;
+				};
 			};
 		};