diff mbox series

[v2,7/7] arm64: dts: exynos: gs101: enable i2c bus 12 on gs101-oriole

Message ID 20240129174151.1174248-8-andre.draszik@linaro.org
State New
Headers
Series gs101 oriole: peripheral block 1 (peric1) and i2c12 support |

Commit Message

André Draszik Jan. 29, 2024, 5:40 p.m. UTC 
  This bus has three USB-related devices attached to it:
    0x25: Maxim 77759 Type-C port controller
    0x35: Maxim 20339EWB Surge protection IC
    0x36: Maxim 77759 Fuel gauge
    0x57: NXP PCA9468 Battery charger
    0x66: Maxim 77759 PMIC
    0x69: Maxim 77759 Charger
where the Maxim 77759 has multiple i2c slave addresses.

These don't have (upstream) Linux drivers yet, but nevertheless we can
enable the bus so as to allow working on them (and to make i2cdetect /
i2cdump / etc. work).

Signed-off-by: André Draszik <andre.draszik@linaro.org>
Reviewed-by: Peter Griffin <peter.griffin@linaro.org>

---
v2:
* add short summary of devices attached to this bus & add TODO
* collect Reviewed-by: tags
---
 arch/arm64/boot/dts/exynos/google/gs101-oriole.dts | 10 ++++++++++
 1 file changed, 10 insertions(+)

Comments

Sam Protsenko Jan. 29, 2024, 7:19 p.m. UTC | #1 
On Mon, Jan 29, 2024 at 11:42 AM André Draszik <andre.draszik@linaro.org> wrote:
>
> This bus has three USB-related devices attached to it:
>     0x25: Maxim 77759 Type-C port controller
>     0x35: Maxim 20339EWB Surge protection IC
>     0x36: Maxim 77759 Fuel gauge
>     0x57: NXP PCA9468 Battery charger
>     0x66: Maxim 77759 PMIC
>     0x69: Maxim 77759 Charger
> where the Maxim 77759 has multiple i2c slave addresses.
>
> These don't have (upstream) Linux drivers yet, but nevertheless we can
> enable the bus so as to allow working on them (and to make i2cdetect /
> i2cdump / etc. work).
>
> Signed-off-by: André Draszik <andre.draszik@linaro.org>
> Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
>
> ---

Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>

> v2:
> * add short summary of devices attached to this bus & add TODO
> * collect Reviewed-by: tags
> ---
>  arch/arm64/boot/dts/exynos/google/gs101-oriole.dts | 10 ++++++++++
>  1 file changed, 10 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/exynos/google/gs101-oriole.dts b/arch/arm64/boot/dts/exynos/google/gs101-oriole.dts
> index cb4d17339b6b..6ccade2c8cb4 100644
> --- a/arch/arm64/boot/dts/exynos/google/gs101-oriole.dts
> +++ b/arch/arm64/boot/dts/exynos/google/gs101-oriole.dts
> @@ -72,6 +72,11 @@ eeprom: eeprom@50 {
>         };
>  };
>
> +&hsi2c_12 {
> +       status = "okay";
> +       /* TODO: add the devices once drivers exist */
> +};
> +
>  &pinctrl_far_alive {
>         key_voldown: key-voldown-pins {
>                 samsung,pins = "gpa7-3";
> @@ -113,6 +118,11 @@ &usi8 {
>         status = "okay";
>  };
>
> +&usi12 {
> +       samsung,mode = <USI_V2_I2C>;
> +       status = "okay";
> +};
> +
>  &watchdog_cl0 {
>         timeout-sec = <30>;
>         status = "okay";
> --
> 2.43.0.429.g432eaa2c6b-goog
>
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/exynos/google/gs101-oriole.dts b/arch/arm64/boot/dts/exynos/google/gs101-oriole.dts
index cb4d17339b6b..6ccade2c8cb4 100644
--- a/arch/arm64/boot/dts/exynos/google/gs101-oriole.dts
+++ b/arch/arm64/boot/dts/exynos/google/gs101-oriole.dts
@@ -72,6 +72,11 @@  eeprom: eeprom@50 {
 	};
 };
 
+&hsi2c_12 {
+	status = "okay";
+	/* TODO: add the devices once drivers exist */
+};
+
 &pinctrl_far_alive {
 	key_voldown: key-voldown-pins {
 		samsung,pins = "gpa7-3";
@@ -113,6 +118,11 @@  &usi8 {
 	status = "okay";
 };
 
+&usi12 {
+	samsung,mode = <USI_V2_I2C>;
+	status = "okay";
+};
+
 &watchdog_cl0 {
 	timeout-sec = <30>;
 	status = "okay";