openwrtv4/target/linux/ipq806x/patches-4.4/023-ARM-dts-ipq806x-Disable-i2c-device-on-gsbi4.patch

--- a/arch/arm/boot/dts/qcom-ipq8064-ap148.dts
+++ b/arch/arm/boot/dts/qcom-ipq8064-ap148.dts
@@ -47,14 +47,12 @@
 				status = "ok";
 			};
 
-			i2c4: i2c@16380000 {
-				status = "ok";
-
-				clock-frequency = <200000>;
-
-				pinctrl-0 = <&i2c4_pins>;
-				pinctrl-names = "default";
-			};
+			/*
+			* The i2c device on gsbi4 should not be enabled.
+			* On ipq806x designs gsbi4 i2c is meant for exclusive
+			* RPM usage. Turning this on in kernel manifests as
+			* i2c failure for the RPM.
+			*/
 		};
 
 		gsbi5: gsbi@1a200000 {
--- a/drivers/clk/qcom/gcc-ipq806x.c
+++ b/drivers/clk/qcom/gcc-ipq806x.c
@@ -294,7 +294,7 @@ static struct clk_rcg gsbi1_uart_src = {
 			.parent_names = gcc_pxo_pll8,
 			.num_parents = 2,
 			.ops = &clk_rcg_ops,
-			.flags = CLK_SET_PARENT_GATE,
+			.flags = CLK_SET_PARENT_GATE | CLK_IGNORE_UNUSED,
 		},
 	},
 };
@@ -312,7 +312,7 @@ static struct clk_branch gsbi1_uart_clk
 			},
 			.num_parents = 1,
 			.ops = &clk_branch_ops,
-			.flags = CLK_SET_RATE_PARENT,
+			.flags = CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED,
 		},
 	},
 };
@@ -890,7 +890,7 @@ static struct clk_branch gsbi1_h_clk = {
 		.hw.init = &(struct clk_init_data){
 			.name = "gsbi1_h_clk",
 			.ops = &clk_branch_ops,
-			.flags = CLK_IS_ROOT,
+			.flags = CLK_IS_ROOT | CLK_IGNORE_UNUSED,
 		},
 	},
 };