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Message-ID: <00bb552d-be6f-464f-9ca9-03a6d4ea26b7@linaro.org>
Date:   Fri, 6 Oct 2023 16:46:48 +0200
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From:   neil.armstrong@linaro.org
Reply-To: neil.armstrong@linaro.org
Subject: Re: [PATCH v1] arm64: dts: amlogic: a1: support all i2c masters and
 their muxes
Content-Language: en-US, fr
To:     Dmitry Rokosov <ddrokosov@salutedevices.com>, jbrunet@baylibre.com,
        mturquette@baylibre.com, khilman@baylibre.com,
        martin.blumenstingl@googlemail.com
Cc:     kernel@sberdevices.ru, rockosov@gmail.com,
        linux-amlogic@lists.infradead.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        George Stark <gnstark@salutedevices.com>
References: <20231006114145.18718-1-ddrokosov@salutedevices.com>
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Organization: Linaro Developer Services
In-Reply-To: <20231006114145.18718-1-ddrokosov@salutedevices.com>
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On 06/10/2023 13:41, Dmitry Rokosov wrote:
> A1 SoC family has four i2c masters: i2c0 (I2CM_A), i2c1 (I2CM_B), i2c2
> (I2CM_C) and i2c3 (I2CM_D).
> 
> Signed-off-by: George Stark <gnstark@salutedevices.com>
> Signed-off-by: Dmitry Rokosov <ddrokosov@salutedevices.com>
> ---
>   arch/arm64/boot/dts/amlogic/meson-a1.dtsi | 144 ++++++++++++++++++++++
>   1 file changed, 144 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
> index 823714bcb7a0..f53000a5d0cc 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
> @@ -126,6 +126,106 @@ gpio: bank@400 {
>   					gpio-ranges = <&periphs_pinctrl 0 0 62>;
>   				};
>   
> +				i2c0_f11_pins: i2c0-f11 {
> +					mux {
> +						groups = "i2c0_sck_f11",
> +							 "i2c0_sda_f12";
> +						function = "i2c0";
> +						bias-pull-up;
> +						drive-strength-microamp = <3000>;
> +					};
> +				};
> +
> +				i2c0_f9_pins: i2c0-f9 {
> +					mux {
> +						groups = "i2c0_sck_f9",
> +							 "i2c0_sda_f10";
> +						function = "i2c0";
> +						bias-pull-up;
> +						drive-strength-microamp = <3000>;
> +					};
> +				};
> +
> +				i2c1_x_pins: i2c1-x {
> +					mux {
> +						groups = "i2c1_sck_x",
> +							 "i2c1_sda_x";
> +						function = "i2c1";
> +						bias-pull-up;
> +						drive-strength-microamp = <3000>;
> +					};
> +				};
> +
> +				i2c1_a_pins: i2c1-a {
> +					mux {
> +						groups = "i2c1_sck_a",
> +							 "i2c1_sda_a";
> +						function = "i2c1";
> +						bias-pull-up;
> +						drive-strength-microamp = <3000>;
> +					};
> +				};
> +
> +				i2c2_x0_pins: i2c2-x0 {
> +					mux {
> +						groups = "i2c2_sck_x0",
> +							 "i2c2_sda_x1";
> +						function = "i2c2";
> +						bias-pull-up;
> +						drive-strength-microamp = <3000>;
> +					};
> +				};
> +
> +				i2c2_x15_pins: i2c2-x15 {
> +					mux {
> +						groups = "i2c2_sck_x15",
> +							 "i2c2_sda_x16";
> +						function = "i2c2";
> +						bias-pull-up;
> +						drive-strength-microamp = <3000>;
> +					};
> +				};
> +
> +				i2c2_a4_pins: i2c2-a4 {
> +					mux {
> +						groups = "i2c2_sck_a4",
> +							 "i2c2_sda_a5";
> +						function = "i2c2";
> +						bias-pull-up;
> +						drive-strength-microamp = <3000>;
> +					};
> +				};
> +
> +				i2c2_a8_pins: i2c2-a8 {
> +					mux {
> +						groups = "i2c2_sck_a8",
> +							 "i2c2_sda_a9";
> +						function = "i2c2";
> +						bias-pull-up;
> +						drive-strength-microamp = <3000>;
> +					};
> +				};
> +
> +				i2c3_x_pins: i2c3-x {
> +					mux {
> +						groups = "i2c3_sck_x",
> +							 "i2c3_sda_x";
> +						function = "i2c3";
> +						bias-pull-up;
> +						drive-strength-microamp = <3000>;
> +					};
> +				};
> +
> +				i2c3_f_pins: i2c3-f {
> +					mux {
> +						groups = "i2c3_sck_f",
> +							 "i2c3_sda_f";
> +						function = "i2c3";
> +						bias-pull-up;
> +						drive-strength-microamp = <3000>;
> +					};
> +				};
> +
>   				uart_a_pins: uart-a {
>   					mux {
>   						groups = "uart_a_tx",
> @@ -377,6 +477,17 @@ clkc_periphs: clock-controller@800 {
>   					      "hifi_pll", "xtal";
>   			};
>   
> +			i2c0: i2c@1400 {
> +				compatible = "amlogic,meson-axg-i2c";
> +				status = "disabled";
> +				reg = <0x0 0x1400 0x0 0x20>;
> +				interrupts = <GIC_SPI 32 IRQ_TYPE_EDGE_RISING>;
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +				clocks = <&clkc_periphs CLKID_I2C_M_A>;
> +				power-domains = <&pwrc PWRC_I2C_ID>;
> +			};
> +
>   			uart_AO: serial@1c00 {
>   				compatible = "amlogic,meson-a1-uart",
>   					     "amlogic,meson-ao-uart";
> @@ -437,6 +548,39 @@ saradc: adc@2c00 {
>   				status = "disabled";
>   			};
>   
> +			i2c1: i2c@5c00 {
> +				compatible = "amlogic,meson-axg-i2c";
> +				status = "disabled";
> +				reg = <0x0 0x5c00 0x0 0x20>;
> +				interrupts = <GIC_SPI 68 IRQ_TYPE_EDGE_RISING>;
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +				clocks = <&clkc_periphs CLKID_I2C_M_B>;
> +				power-domains = <&pwrc PWRC_I2C_ID>;
> +			};
> +
> +			i2c2: i2c@6800 {
> +				compatible = "amlogic,meson-axg-i2c";
> +				status = "disabled";
> +				reg = <0x0 0x6800 0x0 0x20>;
> +				interrupts = <GIC_SPI 76 IRQ_TYPE_EDGE_RISING>;
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +				clocks = <&clkc_periphs CLKID_I2C_M_C>;
> +				power-domains = <&pwrc PWRC_I2C_ID>;
> +			};
> +
> +			i2c3: i2c@6c00 {
> +				compatible = "amlogic,meson-axg-i2c";
> +				status = "disabled";
> +				reg = <0x0 0x6c00 0x0 0x20>;
> +				interrupts = <GIC_SPI 78 IRQ_TYPE_EDGE_RISING>;
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +				clocks = <&clkc_periphs CLKID_I2C_M_D>;
> +				power-domains = <&pwrc PWRC_I2C_ID>;
> +			};
> +
>   			usb2_phy1: phy@4000 {
>   				compatible = "amlogic,a1-usb2-phy";
>   				clocks = <&clkc_periphs CLKID_USB_PHY_IN>;

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>