| Message ID | 1407373713-26281-1-git-send-email-javier.martinez@collabora.co.uk (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Wed, Aug 6, 2014 at 10:08 PM, Javier Martinez Canillas <javier.martinez@collabora.co.uk> wrote: > +&hsi2c_8 { > + status = "okay"; > + clock-frequency = <333000>; Doesn't it work at the more standard 400kHz i2c frequency? -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Hello Fabio, On 08/07/2014 03:35 AM, Fabio Estevam wrote: > On Wed, Aug 6, 2014 at 10:08 PM, Javier Martinez Canillas > <javier.martinez@collabora.co.uk> wrote: > >> +&hsi2c_8 { >> + status = "okay"; >> + clock-frequency = <333000>; > > Doesn't it work at the more standard 400kHz i2c frequency? > Most bits of this DTS snippet have been taken from the downstream Chrome OS 3.8 kernel so I'll let one of the Chromium folks to answer this question. Best regards, Javier -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Fabio, On Wed, Aug 6, 2014 at 6:35 PM, Fabio Estevam <festevam@gmail.com> wrote: > On Wed, Aug 6, 2014 at 10:08 PM, Javier Martinez Canillas > <javier.martinez@collabora.co.uk> wrote: > >> +&hsi2c_8 { >> + status = "okay"; >> + clock-frequency = <333000>; > > Doesn't it work at the more standard 400kHz i2c frequency? I'm pretty sure that they had signaling problems at 400kHz, but perhaps Benson will rememer. -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts b/arch/arm/boot/dts/exynos5420-peach-pit.dts index 228a6b1..7dce444 100644 --- a/arch/arm/boot/dts/exynos5420-peach-pit.dts +++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts @@ -11,6 +11,7 @@ /dts-v1/; #include <dt-bindings/input/input.h> #include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/interrupt-controller/irq.h> #include "exynos5420.dtsi" / { @@ -157,6 +158,27 @@ }; }; +&hsi2c_8 { + status = "okay"; + clock-frequency = <333000>; + + trackpad@4b { + compatible="atmel,maxtouch"; + reg=<0x4b>; + interrupt-parent=<&gpx1>; + interrupts=<1 IRQ_TYPE_EDGE_FALLING>; + wakeup-source; + pinctrl-names = "default"; + pinctrl-0 = <&trackpad_irq>; + linux,gpio-keymap = < BTN_LEFT + BTN_TOOL_FINGER + BTN_TOOL_DOUBLETAP + BTN_TOOL_TRIPLETAP + BTN_TOOL_QUADTAP + BTN_TOOL_QUINTTAP >; + }; +}; + &hsi2c_9 { status = "okay"; clock-frequency = <400000>; @@ -249,6 +271,13 @@ samsung,pin-drv = <0>; }; + trackpad_irq: trackpad-irq { + samsung,pins = "gpx1-1"; + samsung,pin-function = <0>; + samsung,pin-pud = <0>; + samsung,pin-drv = <0>; + }; + power_key_irq: power-key-irq { samsung,pins = "gpx1-2"; samsung,pin-function = <0>; diff --git a/arch/arm/boot/dts/exynos5800-peach-pi.dts b/arch/arm/boot/dts/exynos5800-peach-pi.dts index f3ee48b..de946b3 100644 --- a/arch/arm/boot/dts/exynos5800-peach-pi.dts +++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts @@ -11,6 +11,7 @@ /dts-v1/; #include <dt-bindings/input/input.h> #include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/interrupt-controller/irq.h> #include "exynos5800.dtsi" / { @@ -155,6 +156,27 @@ }; }; +&hsi2c_8 { + status = "okay"; + clock-frequency = <333000>; + + trackpad@4b { + compatible="atmel,maxtouch"; + reg=<0x4b>; + interrupt-parent=<&gpx1>; + interrupts=<1 IRQ_TYPE_EDGE_FALLING>; + wakeup-source; + pinctrl-names = "default"; + pinctrl-0 = <&trackpad_irq>; + linux,gpio-keymap = < BTN_LEFT + BTN_TOOL_FINGER + BTN_TOOL_DOUBLETAP + BTN_TOOL_TRIPLETAP + BTN_TOOL_QUADTAP + BTN_TOOL_QUINTTAP >; + }; +}; + &hsi2c_9 { status = "okay"; clock-frequency = <400000>; @@ -247,6 +269,13 @@ samsung,pin-drv = <0>; }; + trackpad_irq: trackpad-irq { + samsung,pins = "gpx1-1"; + samsung,pin-function = <0>; + samsung,pin-pud = <0>; + samsung,pin-drv = <0>; + }; + power_key_irq: power-key-irq { samsung,pins = "gpx1-2"; samsung,pin-function = <0>;