* [PATCH v2 1/2] arm64: dts: mnt-reform2: add internal display support
@ 2021-12-18 18:20 Lucas Stach
2021-12-18 18:20 ` [PATCH v2 2/2] arm64: dts: mnt-reform2: correct i2c3 pad-ctrl Lucas Stach
2022-01-26 13:13 ` [PATCH v2 1/2] arm64: dts: mnt-reform2: add internal display support Shawn Guo
0 siblings, 2 replies; 3+ messages in thread
From: Lucas Stach @ 2021-12-18 18:20 UTC (permalink / raw)
To: Shawn Guo
Cc: Pengutronix Kernel Team, NXP Linux Team, linux-arm-kernel,
Lukas F . Hartmann
This adds support for the internal display of the Reform2 Laptop, which
is connected to the i.MX8MQ via a MIPI-DSI->eDP bridge chip. Clocking
is derived from a system PLL, which provides quite good rate matching
for the single supported display mode and keeps the video PLL free for
usage with the external display, which isn't supported yet.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
----
v2: reorder compatible and status properties
---
.../boot/dts/freescale/imx8mq-mnt-reform2.dts | 140 ++++++++++++++++++
1 file changed, 140 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-mnt-reform2.dts b/arch/arm64/boot/dts/freescale/imx8mq-mnt-reform2.dts
index 4f2db6197b39..9710f21e3fd5 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-mnt-reform2.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-mnt-reform2.dts
@@ -13,6 +13,30 @@ / {
model = "MNT Reform 2";
compatible = "mntre,reform2", "boundary,imx8mq-nitrogen8m-som", "fsl,imx8mq";
+ backlight: backlight {
+ compatible = "pwm-backlight";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_backlight>;
+ pwms = <&pwm2 0 10000>;
+ power-supply = <®_main_usb>;
+ enable-gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>;
+ brightness-levels = <0 32 64 128 160 200 255>;
+ default-brightness-level = <6>;
+ };
+
+ panel {
+ compatible = "innolux,n125hce-gn1", "simple-panel";
+ power-supply = <®_main_3v3>;
+ backlight = <&backlight>;
+ no-hpd;
+
+ port {
+ panel_in: endpoint {
+ remote-endpoint = <&edp_bridge_out>;
+ };
+ };
+ };
+
pcie1_refclk: clock-pcie1-refclk {
compatible = "fixed-clock";
#clock-cells = <0>;
@@ -41,6 +65,22 @@ reg_main_usb: regulator-main-usb {
vin-supply = <®_main_5v>;
};
+ reg_main_1v8: regulator-main-1v8 {
+ compatible = "regulator-fixed";
+ regulator-name = "1V8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ vin-supply = <®_main_3v3>;
+ };
+
+ reg_main_1v2: regulator-main-1v2 {
+ compatible = "regulator-fixed";
+ regulator-name = "1V2";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ vin-supply = <®_main_5v>;
+ };
+
sound {
compatible = "fsl,imx-audio-wm8960";
audio-cpu = <&sai2>;
@@ -60,6 +100,13 @@ sound {
};
};
+&dphy {
+ assigned-clocks = <&clk IMX8MQ_CLK_DSI_PHY_REF>;
+ assigned-clock-parents = <&clk IMX8MQ_SYS1_PLL_800M>;
+ assigned-clock-rates = <25000000>;
+ status = "okay";
+};
+
&fec1 {
status = "okay";
};
@@ -83,6 +130,67 @@ rtc@68 {
};
};
+&i2c4 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c4>;
+ clock-frequency = <400000>;
+ status = "okay";
+
+ edp_bridge: bridge@2c {
+ compatible = "ti,sn65dsi86";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_edp_bridge>;
+ reg = <0x2c>;
+ enable-gpios = <&gpio3 20 GPIO_ACTIVE_HIGH>;
+ vccio-supply = <®_main_1v8>;
+ vpll-supply = <®_main_1v8>;
+ vcca-supply = <®_main_1v2>;
+ vcc-supply = <®_main_1v2>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ edp_bridge_in: endpoint {
+ remote-endpoint = <&mipi_dsi_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ edp_bridge_out: endpoint {
+ remote-endpoint = <&panel_in>;
+ };
+ };
+ };
+ };
+};
+
+&lcdif {
+ assigned-clocks = <&clk IMX8MQ_CLK_LCDIF_PIXEL>;
+ assigned-clock-parents = <&clk IMX8MQ_SYS1_PLL_800M>;
+ /delete-property/assigned-clock-rates;
+ status = "okay";
+};
+
+&mipi_dsi {
+ status = "okay";
+
+ ports {
+ port@1 {
+ reg = <1>;
+
+ mipi_dsi_out: endpoint {
+ remote-endpoint = <&edp_bridge_in>;
+ };
+ };
+ };
+};
+
&pcie1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pcie1>;
@@ -95,6 +203,13 @@ &pcie1 {
status = "okay";
};
+&pwm2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pwm2>;
+ status = "okay";
+};
+
+
®_1p8v {
vin-supply = <®_main_5v>;
};
@@ -168,6 +283,18 @@ &usdhc2 {
};
&iomuxc {
+ pinctrl_backlight: backlightgrp {
+ fsl,pins = <
+ MX8MQ_IOMUXC_GPIO1_IO10_GPIO1_IO10 0x3
+ >;
+ };
+
+ pinctrl_edp_bridge: edpbridgegrp {
+ fsl,pins = <
+ MX8MQ_IOMUXC_SAI5_RXC_GPIO3_IO20 0x1
+ >;
+ };
+
pinctrl_i2c3: i2c3grp {
fsl,pins = <
MX8MQ_IOMUXC_I2C3_SCL_I2C3_SCL 0x4000007f
@@ -175,12 +302,25 @@ MX8MQ_IOMUXC_I2C3_SDA_I2C3_SDA 0x4000007f
>;
};
+ pinctrl_i2c4: i2c4grp {
+ fsl,pins = <
+ MX8MQ_IOMUXC_I2C4_SCL_I2C4_SCL 0x40000022
+ MX8MQ_IOMUXC_I2C4_SDA_I2C4_SDA 0x40000022
+ >;
+ };
+
pinctrl_pcie1: pcie1grp {
fsl,pins = <
MX8MQ_IOMUXC_SAI5_RXD2_GPIO3_IO23 0x16
>;
};
+ pinctrl_pwm2: pwm2grp {
+ fsl,pins = <
+ MX8MQ_IOMUXC_SPDIF_RX_PWM2_OUT 0x3
+ >;
+ };
+
pinctrl_sai2: sai2grp {
fsl,pins = <
MX8MQ_IOMUXC_SAI2_RXD0_SAI2_RX_DATA0 0xd6
--
2.31.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [PATCH v2 2/2] arm64: dts: mnt-reform2: correct i2c3 pad-ctrl
2021-12-18 18:20 [PATCH v2 1/2] arm64: dts: mnt-reform2: add internal display support Lucas Stach
@ 2021-12-18 18:20 ` Lucas Stach
2022-01-26 13:13 ` [PATCH v2 1/2] arm64: dts: mnt-reform2: add internal display support Shawn Guo
1 sibling, 0 replies; 3+ messages in thread
From: Lucas Stach @ 2021-12-18 18:20 UTC (permalink / raw)
To: Shawn Guo
Cc: Pengutronix Kernel Team, NXP Linux Team, linux-arm-kernel,
Lukas F . Hartmann
The slew rate and drive-strength of the i2c3 pads were much too
high. Bring them down to avoid signal quality issues.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
---
arch/arm64/boot/dts/freescale/imx8mq-mnt-reform2.dts | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-mnt-reform2.dts b/arch/arm64/boot/dts/freescale/imx8mq-mnt-reform2.dts
index 9710f21e3fd5..728b0aaf838a 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-mnt-reform2.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-mnt-reform2.dts
@@ -297,8 +297,8 @@ MX8MQ_IOMUXC_SAI5_RXC_GPIO3_IO20 0x1
pinctrl_i2c3: i2c3grp {
fsl,pins = <
- MX8MQ_IOMUXC_I2C3_SCL_I2C3_SCL 0x4000007f
- MX8MQ_IOMUXC_I2C3_SDA_I2C3_SDA 0x4000007f
+ MX8MQ_IOMUXC_I2C3_SCL_I2C3_SCL 0x40000022
+ MX8MQ_IOMUXC_I2C3_SDA_I2C3_SDA 0x40000022
>;
};
--
2.31.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH v2 1/2] arm64: dts: mnt-reform2: add internal display support
2021-12-18 18:20 [PATCH v2 1/2] arm64: dts: mnt-reform2: add internal display support Lucas Stach
2021-12-18 18:20 ` [PATCH v2 2/2] arm64: dts: mnt-reform2: correct i2c3 pad-ctrl Lucas Stach
@ 2022-01-26 13:13 ` Shawn Guo
1 sibling, 0 replies; 3+ messages in thread
From: Shawn Guo @ 2022-01-26 13:13 UTC (permalink / raw)
To: Lucas Stach
Cc: Pengutronix Kernel Team, NXP Linux Team, linux-arm-kernel,
Lukas F . Hartmann
On Sat, Dec 18, 2021 at 07:20:20PM +0100, Lucas Stach wrote:
> This adds support for the internal display of the Reform2 Laptop, which
> is connected to the i.MX8MQ via a MIPI-DSI->eDP bridge chip. Clocking
> is derived from a system PLL, which provides quite good rate matching
> for the single supported display mode and keeps the video PLL free for
> usage with the external display, which isn't supported yet.
>
> Signed-off-by: Lucas Stach <dev@lynxeye.de>
Applied both, thanks!
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2022-01-26 13:15 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-12-18 18:20 [PATCH v2 1/2] arm64: dts: mnt-reform2: add internal display support Lucas Stach
2021-12-18 18:20 ` [PATCH v2 2/2] arm64: dts: mnt-reform2: correct i2c3 pad-ctrl Lucas Stach
2022-01-26 13:13 ` [PATCH v2 1/2] arm64: dts: mnt-reform2: add internal display support Shawn Guo
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.