i2c-qup allows using DMA to speed up larger transfers. In msm8916.dtsi
the DMA channels are already assigned to the SPI controllers but
missing for I2C. Add them there as well.
This also fixes confusing errors in dmesg for each I2C controller:
i2c_qup 78b6000.i2c: tx channel not available
Signed-off-by: Stephan Gerhold <stephan@xxxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/msm8916.dtsi | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi b/arch/arm64/boot/dts/qcom/msm8916.dtsi
index 98da982548a1..daece6b9e932 100644
--- a/arch/arm64/boot/dts/qcom/msm8916.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi
@@ -1559,6 +1559,8 @@ blsp_i2c1: i2c@78b5000 {
clocks = <&gcc GCC_BLSP1_QUP1_I2C_APPS_CLK>,
<&gcc GCC_BLSP1_AHB_CLK>;
clock-names = "core", "iface";
+ dmas = <&blsp_dma 4>, <&blsp_dma 5>;
+ dma-names = "tx", "rx";
pinctrl-names = "default", "sleep";
pinctrl-0 = <&i2c1_default>;
pinctrl-1 = <&i2c1_sleep>;
@@ -1591,6 +1593,8 @@ blsp_i2c2: i2c@78b6000 {
clocks = <&gcc GCC_BLSP1_QUP2_I2C_APPS_CLK>,
<&gcc GCC_BLSP1_AHB_CLK>;
clock-names = "core", "iface";
+ dmas = <&blsp_dma 6>, <&blsp_dma 7>;
+ dma-names = "tx", "rx";
pinctrl-names = "default", "sleep";
pinctrl-0 = <&i2c2_default>;
pinctrl-1 = <&i2c2_sleep>;
@@ -1623,6 +1627,8 @@ blsp_i2c3: i2c@78b7000 {
clocks = <&gcc GCC_BLSP1_QUP3_I2C_APPS_CLK>,
<&gcc GCC_BLSP1_AHB_CLK>;
clock-names = "core", "iface";
+ dmas = <&blsp_dma 8>, <&blsp_dma 9>;
+ dma-names = "tx", "rx";
pinctrl-names = "default", "sleep";
pinctrl-0 = <&i2c3_default>;
pinctrl-1 = <&i2c3_sleep>;
@@ -1655,6 +1661,8 @@ blsp_i2c4: i2c@78b8000 {
clocks = <&gcc GCC_BLSP1_QUP4_I2C_APPS_CLK>,
<&gcc GCC_BLSP1_AHB_CLK>;
clock-names = "core", "iface";
+ dmas = <&blsp_dma 10>, <&blsp_dma 11>;
+ dma-names = "tx", "rx";
pinctrl-names = "default", "sleep";
pinctrl-0 = <&i2c4_default>;
pinctrl-1 = <&i2c4_sleep>;
@@ -1687,6 +1695,8 @@ blsp_i2c5: i2c@78b9000 {
clocks = <&gcc GCC_BLSP1_QUP5_I2C_APPS_CLK>,
<&gcc GCC_BLSP1_AHB_CLK>;
clock-names = "core", "iface";
+ dmas = <&blsp_dma 12>, <&blsp_dma 13>;
+ dma-names = "tx", "rx";
pinctrl-names = "default", "sleep";
pinctrl-0 = <&i2c5_default>;
pinctrl-1 = <&i2c5_sleep>;
@@ -1719,6 +1729,8 @@ blsp_i2c6: i2c@78ba000 {
clocks = <&gcc GCC_BLSP1_QUP6_I2C_APPS_CLK>,
<&gcc GCC_BLSP1_AHB_CLK>;
clock-names = "core", "iface";
+ dmas = <&blsp_dma 14>, <&blsp_dma 15>;
+ dma-names = "tx", "rx";
pinctrl-names = "default", "sleep";
pinctrl-0 = <&i2c6_default>;
pinctrl-1 = <&i2c6_sleep>;
--
2.39.0
