diff options
Diffstat (limited to 'target/linux/ipq806x/patches-4.4/023-ARM-dts-ipq806x-Disable-i2c-device-on-gsbi4.patch')
| -rw-r--r-- | target/linux/ipq806x/patches-4.4/023-ARM-dts-ipq806x-Disable-i2c-device-on-gsbi4.patch | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/target/linux/ipq806x/patches-4.4/023-ARM-dts-ipq806x-Disable-i2c-device-on-gsbi4.patch b/target/linux/ipq806x/patches-4.4/023-ARM-dts-ipq806x-Disable-i2c-device-on-gsbi4.patch new file mode 100644 index 0000000000..b8c527b6ae --- /dev/null +++ b/target/linux/ipq806x/patches-4.4/023-ARM-dts-ipq806x-Disable-i2c-device-on-gsbi4.patch @@ -0,0 +1,52 @@ +--- 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 @@ + .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 @@ + }, + .num_parents = 1, + .ops = &clk_branch_ops, +- .flags = CLK_SET_RATE_PARENT, ++ .flags = CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED, + }, + }, + }; +@@ -890,7 +890,7 @@ + .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, + }, + }, + }; |