Commit 389d2c99 authored by Stephan Gerhold's avatar Stephan Gerhold Committed by Bjorn Andersson
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arm64: dts: qcom: msm8916: Add DMA for all I2C controllers 



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: default avatarStephan Gerhold <stephan@gerhold.net>
Reviewed-by: default avatarKonrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: default avatarBjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230107110958.5762-3-stephan@gerhold.net
parent 0154d359

arch/arm64/boot/dts/qcom/msm8916.dtsi

+12 −0
Original line number Diff line number Diff line
@@ -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>;