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arm64: dts: exynos: gs101: define USI8 with I2C configuration

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USI8 I2C is used to communicate with an eeprom found on the battery
connector. Define USI8 in I2C configuration.

USI8 CONFIG register comes with a 0x0 reset value, meaning that USI8
doesn't have a default protocol (I2C, SPI, UART) at reset. Thus the
selection of the protocol is intentionally left for the board dts file.

Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20240119111132.1290455-8-tudor.ambarus@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
This commit is contained in:
Tudor Ambarus 2024-01-19 11:11:31 +00:00 committed by Krzysztof Kozlowski
parent d97b6c902a
commit 6d44d1a1fb
1 changed files with 29 additions and 0 deletions
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29
arch/arm64/boot/dts/exynos/google/gs101.dtsi
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@ -372,6 +372,35 @@ pinctrl_peric0: pinctrl@10840000 {
interrupts = <GIC_SPI 625 IRQ_TYPE_LEVEL_HIGH 0>;
};
usi8: usi@109700c0 {
compatible = "google,gs101-usi",
"samsung,exynos850-usi";
reg = <0x109700c0 0x20>;
ranges;
#address-cells = <1>;
#size-cells = <1>;
clocks = <&cmu_peric0 CLK_GOUT_PERIC0_CLK_PERIC0_USI8_USI_CLK>,
<&cmu_peric0 CLK_GOUT_PERIC0_PERIC0_TOP0_IPCLK_7>;
clock-names = "pclk", "ipclk";
samsung,sysreg = <&sysreg_peric0 0x101c>;
status = "disabled";
hsi2c_8: i2c@10970000 {
compatible = "google,gs101-hsi2c",
"samsung,exynosautov9-hsi2c";
reg = <0x10970000 0xc0>;
interrupts = <GIC_SPI 642 IRQ_TYPE_LEVEL_HIGH 0>;
#address-cells = <1>;
#size-cells = <0>;
pinctrl-names = "default";
pinctrl-0 = <&hsi2c8_bus>;
clocks = <&cmu_peric0 CLK_GOUT_PERIC0_PERIC0_TOP0_IPCLK_7>,
<&cmu_peric0 CLK_GOUT_PERIC0_CLK_PERIC0_USI8_USI_CLK>;
clock-names = "hsi2c", "hsi2c_pclk";
status = "disabled";
};
};
usi_uart: usi@10a000c0 {
compatible = "google,gs101-usi",
"samsung,exynos850-usi";