On Sun 26 Apr 07:06 PDT 2020, Stephan Gerhold wrote:
> MSM8916 has another I2C QUP controller that can be enabled on
> GPIO 2 and 3.
>
> Add blsp_i2c1 to msm8916.dtsi and disable it by default.
>
Reviewed-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
Regards,
Bjorn
> Signed-off-by: Stephan Gerhold <stephan@xxxxxxxxxxx>
> ---
> On samsung-a2015 there is an external TFA9895 speaker amplifier
> connected to blsp_i2c1. There isn't a proper mainline driver
> for it (yet?), but it's nice to have the I2C bus in mainline at least.
> ---
> arch/arm64/boot/dts/qcom/msm8916-pins.dtsi | 24 ++++++++++++++++++++++
> arch/arm64/boot/dts/qcom/msm8916.dtsi | 15 ++++++++++++++
> 2 files changed, 39 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/msm8916-pins.dtsi b/arch/arm64/boot/dts/qcom/msm8916-pins.dtsi
> index 242aaea68804..b45fd12856ea 100644
> --- a/arch/arm64/boot/dts/qcom/msm8916-pins.dtsi
> +++ b/arch/arm64/boot/dts/qcom/msm8916-pins.dtsi
> @@ -262,6 +262,30 @@ pinconf {
> };
> };
>
> + i2c1_default: i2c1_default {
> + pinmux {
> + function = "blsp_i2c1";
> + pins = "gpio2", "gpio3";
> + };
> + pinconf {
> + pins = "gpio2", "gpio3";
> + drive-strength = <2>;
> + bias-disable;
> + };
> + };
> +
> + i2c1_sleep: i2c1_sleep {
> + pinmux {
> + function = "gpio";
> + pins = "gpio2", "gpio3";
> + };
> + pinconf {
> + pins = "gpio2", "gpio3";
> + drive-strength = <2>;
> + bias-disable;
> + };
> + };
> +
> i2c2_default: i2c2_default {
> pinmux {
> function = "blsp_i2c2";
> diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi b/arch/arm64/boot/dts/qcom/msm8916.dtsi
> index 8b429954ea29..6ab7cabde370 100644
> --- a/arch/arm64/boot/dts/qcom/msm8916.dtsi
> +++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi
> @@ -612,6 +612,21 @@ blsp_spi6: spi@78ba000 {
> status = "disabled";
> };
>
> + blsp_i2c1: i2c@78b5000 {
> + compatible = "qcom,i2c-qup-v2.2.1";
> + reg = <0x078b5000 0x500>;
> + interrupts = <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&gcc GCC_BLSP1_AHB_CLK>,
> + <&gcc GCC_BLSP1_QUP1_I2C_APPS_CLK>;
> + clock-names = "iface", "core";
> + pinctrl-names = "default", "sleep";
> + pinctrl-0 = <&i2c1_default>;
> + pinctrl-1 = <&i2c1_sleep>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + status = "disabled";
> + };
> +
> blsp_i2c2: i2c@78b6000 {
> compatible = "qcom,i2c-qup-v2.2.1";
> reg = <0x078b6000 0x500>;
> --
> 2.26.2
>
