From: Frieder Schrempf <frieder@fris.de>
To: Conor Dooley <conor+dt@kernel.org>,
devicetree@vger.kernel.org,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Rob Herring <robh+dt@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Shawn Guo <shawnguo@kernel.org>
Cc: Frieder Schrempf <frieder.schrempf@kontron.de>,
Fabio Estevam <festevam@gmail.com>,
NXP Linux Team <linux-imx@nxp.com>,
Pengutronix Kernel Team <kernel@pengutronix.de>
Subject: [PATCH v2 01/14] arm64: dts: imx8mm-kontron: Add support for display bridges on BL i.MX8MM
Date: Thu, 30 Nov 2023 17:16:01 +0100 [thread overview]
Message-ID: <20231130161657.556483-2-frieder@fris.de> (raw)
In-Reply-To: <20231130161657.556483-1-frieder@fris.de>
From: Frieder Schrempf <frieder.schrempf@kontron.de>
The Kontron Electronics BL i.MX8MM has oboard disply bridges for
DSI->HDMI and DSI->LVDS conversion. The DSI interface is muxed by
a GPIO-controlled switch to one of these two bridges.
By default the HDMI bridge is enabled. The LVDS bridge can be
selected by loading an additional (panel-specific) overlay.
Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
---
Changes for v2:
* Rework DSI mux GPIO logic to be compatible with overlay
* Switch from 4 to 2 DSI lanes for LVDS bridge to fix non-working display
---
.../boot/dts/freescale/imx8mm-kontron-bl.dts | 158 ++++++++++++++++++
1 file changed, 158 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl.dts b/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl.dts
index dcec57c20399e..0fb16b811461e 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl.dts
@@ -25,6 +25,17 @@ osc_can: clock-osc-can {
clock-output-names = "osc-can";
};
+ hdmi-out {
+ compatible = "hdmi-connector";
+ type = "a";
+
+ port {
+ hdmi_in_conn: endpoint {
+ remote-endpoint = <&bridge_out_conn>;
+ };
+ };
+ };
+
leds {
compatible = "gpio-leds";
pinctrl-names = "default";
@@ -132,6 +143,102 @@ ethphy: ethernet-phy@0 {
};
};
+&gpio4 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_gpio4>;
+
+ dsi_mux_sel_hdmi: dsi-mux-sel-hdmi-hog {
+ gpio-hog;
+ gpios = <14 GPIO_ACTIVE_HIGH>;
+ output-high;
+ line-name = "dsi-mux-sel";
+ status = "okay";
+ };
+
+ dsi_mux_sel_lvds: dsi-mux-sel-lvds-hog {
+ gpio-hog;
+ gpios = <14 GPIO_ACTIVE_HIGH>;
+ output-low;
+ line-name = "dsi-mux-sel";
+ status = "disabled";
+ };
+
+ dsi-mux-oe-hog {
+ gpio-hog;
+ gpios = <15 GPIO_ACTIVE_LOW>;
+ output-high;
+ line-name = "dsi-mux-oe";
+ };
+};
+
+&i2c3 {
+ clock-frequency = <400000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c3>;
+ status = "okay";
+
+ hdmi: hdmi@39 {
+ compatible = "adi,adv7535";
+ reg = <0x39>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_adv7535>;
+
+ interrupt-parent = <&gpio4>;
+ interrupts = <16 IRQ_TYPE_LEVEL_LOW>;
+
+ adi,dsi-lanes = <4>;
+
+ a2vdd-supply = <®_vdd_1v8>;
+ avdd-supply = <®_vdd_1v8>;
+ dvdd-supply = <®_vdd_1v8>;
+ pvdd-supply = <®_vdd_1v8>;
+ v1p2-supply = <®_vdd_1v8>;
+ v3p3-supply = <®_vdd_3v3>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ bridge_in_dsi_hdmi: endpoint {
+ remote-endpoint = <&dsi_out_bridge>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ bridge_out_conn: endpoint {
+ remote-endpoint = <&hdmi_in_conn>;
+ };
+ };
+ };
+ };
+
+ lvds: bridge@2c {
+ compatible = "ti,sn65dsi84";
+ reg = <0x2c>;
+ enable-gpios = <&gpio4 26 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_sn65dsi84>;
+ status = "disabled";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ bridge_in_dsi_lvds: endpoint {
+ remote-endpoint = <&dsi_out_bridge>;
+ data-lanes = <1 2>;
+ };
+ };
+ };
+ };
+};
+
&i2c4 {
clock-frequency = <100000>;
pinctrl-names = "default";
@@ -144,6 +251,30 @@ rx8900: rtc@32 {
};
};
+&lcdif {
+ status = "okay";
+};
+
+&mipi_dsi {
+ samsung,esc-clock-frequency = <54000000>;
+ /*
+ * Let the driver calculate an appropriate clock rate based on the pixel
+ * clock instead of using the fixed value from imx8mm.dtsi.
+ */
+ /delete-property/ samsung,pll-clock-frequency;
+ status = "okay";
+
+ ports {
+ port@1 {
+ reg = <1>;
+
+ dsi_out_bridge: endpoint {
+ remote-endpoint = <&bridge_in_dsi_hdmi>;
+ };
+ };
+ };
+};
+
&pwm2 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pwm2>;
@@ -207,6 +338,12 @@ &iomuxc {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_gpio>;
+ pinctrl_adv7535: adv7535grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SAI1_TXD4_GPIO4_IO16 0x19
+ >;
+ };
+
pinctrl_can: cangrp {
fsl,pins = <
MX8MM_IOMUXC_SAI3_RXFS_GPIO4_IO28 0x19
@@ -277,6 +414,20 @@ MX8MM_IOMUXC_SAI3_MCLK_GPIO5_IO2 0x19
>;
};
+ pinctrl_gpio4: gpio4grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SAI1_TXD2_GPIO4_IO14 0x19
+ MX8MM_IOMUXC_SAI1_TXD3_GPIO4_IO15 0x19
+ >;
+ };
+
+ pinctrl_i2c3: i2c3grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_I2C3_SCL_I2C3_SCL 0x40000083
+ MX8MM_IOMUXC_I2C3_SDA_I2C3_SDA 0x40000083
+ >;
+ };
+
pinctrl_i2c4: i2c4grp {
fsl,pins = <
MX8MM_IOMUXC_I2C4_SCL_I2C4_SCL 0x400001c3
@@ -290,6 +441,13 @@ MX8MM_IOMUXC_SPDIF_RX_PWM2_OUT 0x19
>;
};
+ pinctrl_sn65dsi84: sn65dsi84grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SAI2_TXD0_GPIO4_IO26 0x19
+ MX8MM_IOMUXC_SD2_WP_GPIO2_IO20 0x19
+ >;
+ };
+
pinctrl_uart1: uart1grp {
fsl,pins = <
MX8MM_IOMUXC_SAI2_RXC_UART1_DCE_RX 0x140
--
2.43.0
next prev parent reply other threads:[~2023-11-30 16:18 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-30 16:16 [PATCH v2 00/14] arm64: dts: imx8mm-kontron: DT updates Frieder Schrempf
2023-11-30 16:16 ` Frieder Schrempf [this message]
2023-12-06 2:34 ` [PATCH v2 01/14] arm64: dts: imx8mm-kontron: Add support for display bridges on BL i.MX8MM Shawn Guo
2023-12-06 14:46 ` Frieder Schrempf
2023-11-30 16:16 ` [PATCH v2 02/14] arm64: dts: imx8mm-kontron: Add DL (Display-Line) overlay with LVDS support Frieder Schrempf
2023-12-06 2:43 ` Shawn Guo
2023-12-06 14:48 ` Frieder Schrempf
2023-11-30 16:16 ` [PATCH v2 03/14] arm64: dts: imx8mm-kontron: Disable pullups for I2C signals on OSM-S i.MX8MM Frieder Schrempf
2023-11-30 16:16 ` [PATCH v2 04/14] arm64: dts: imx8mm-kontron: Disable pullups for I2C signals on SL/BL i.MX8MM Frieder Schrempf
2023-11-30 16:16 ` [PATCH v2 05/14] arm64: dts: imx8mm-kontron: Disable pullups for onboard UART signals on BL OSM-S board Frieder Schrempf
2023-11-30 16:16 ` [PATCH v2 06/14] arm64: dts: imx8mm-kontron: Disable pullups for onboard UART signals on BL board Frieder Schrempf
2023-11-30 16:16 ` [PATCH v2 07/14] arm64: dts: imx8mm-kontron: Disable pull resistors for SD card signals on BL OSM-S board Frieder Schrempf
2023-11-30 16:16 ` [PATCH v2 08/14] arm64: dts: imx8mm-kontron: Disable pull resistors for SD card signals on BL board Frieder Schrempf
2023-11-30 16:16 ` [PATCH v2 09/14] arm64: dts: imx8mm-kontron: Fix interrupt for RTC on OSM-S i.MX8MM module Frieder Schrempf
2023-11-30 16:16 ` [PATCH v2 10/14] arm64: dts: imx8mm-kontron: Fix OSM-S devicetrees to match latest hardware Frieder Schrempf
2023-11-30 16:16 ` [PATCH v2 11/14] arm64: dts: imx8mm-kontron: Disable uneffective PUE bit in SDIO IOMUX Frieder Schrempf
2023-11-30 16:16 ` [PATCH v2 12/14] arm64: dts: imx8mm-kontron: Remove useless trickle-diode-disable from RTC node Frieder Schrempf
2023-11-30 16:16 ` [PATCH v2 13/14] arm64: dts: imx8mm-kontron: Add I2C EEPROM on OSM-S Kontron i.MX8MM Frieder Schrempf
2023-11-30 16:16 ` [PATCH v2 14/14] arm64: dts: imx8mm-kontron: Refactor devicetree for OSM-S module and board Frieder Schrempf
2023-12-06 3:01 ` Shawn Guo
2023-12-06 14:49 ` Frieder Schrempf
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