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From 99909530ec9b6e9b1b3b756a05a83fa1c7d6d4bc Mon Sep 17 00:00:00 2001
From: Stefan Wahren <stefan.wahren@i2se.com>
Date: Tue, 1 Jan 2019 18:29:08 +0100
Subject: [PATCH] ARM: dts: bcm283x: Add missing GPIO line names
The GPIO sysfs is deprecated and disabled in the defconfig files.
So in order to motivate the usage of the new GPIO character device API
add the missing GPIO line names for Raspberry Pi 2 and 3.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
---
arch/arm/boot/dts/bcm2836-rpi-2-b.dts | 66 ++++++++++++++++++++
arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts | 70 ++++++++++++++++++++++
arch/arm/boot/dts/bcm2837-rpi-3-b.dts | 70 ++++++++++++++++++++++
3 files changed, 206 insertions(+)
diff --git a/arch/arm/boot/dts/bcm2836-rpi-2-b.dts b/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
index 871fc4a558cf..7b4e651bafdd 100644
--- a/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
+++ b/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
@@ -28,6 +28,72 @@
};
&gpio {
+ /*
+ * Taken from rpi_SCH_2b_1p2_reduced.pdf and
+ * the official GPU firmware DT blob.
+ *
+ * Legend:
+ * "NC" = not connected (no rail from the SoC)
+ * "FOO" = GPIO line named "FOO" on the schematic
+ * "FOO_N" = GPIO line named "FOO" on schematic, active low
+ */
+ gpio-line-names = "ID_SDA",
+ "ID_SCL",
+ "SDA1",
+ "SCL1",
+ "GPIO_GCLK",
+ "GPIO5",
+ "GPIO6",
+ "SPI_CE1_N",
+ "SPI_CE0_N",
+ "SPI_MISO",
+ "SPI_MOSI",
+ "SPI_SCLK",
+ "GPIO12",
+ "GPIO13",
+ /* Serial port */
+ "TXD0",
+ "RXD0",
+ "GPIO16",
+ "GPIO17",
+ "GPIO18",
+ "GPIO19",
+ "GPIO20",
+ "GPIO21",
+ "GPIO22",
+ "GPIO23",
+ "GPIO24",
+ "GPIO25",
+ "GPIO26",
+ "GPIO27",
+ "SDA0",
+ "SCL0",
+ "", /* GPIO30 */
+ "LAN_RUN",
+ "CAM_GPIO1",
+ "", /* GPIO33 */
+ "", /* GPIO34 */
+ "PWR_LOW_N",
+ "", /* GPIO36 */
+ "", /* GPIO37 */
+ "USB_LIMIT",
+ "", /* GPIO39 */
+ "PWM0_OUT",
+ "CAM_GPIO0",
+ "SMPS_SCL",
+ "SMPS_SDA",
+ "ETHCLK",
+ "PWM1_OUT",
+ "HDMI_HPD_N",
+ "STATUS_LED",
+ /* Used by SD Card */
+ "SD_CLK_R",
+ "SD_CMD_R",
+ "SD_DATA0_R",
+ "SD_DATA1_R",
+ "SD_DATA2_R",
+ "SD_DATA3_R";
+
pinctrl-0 = <&gpioout &alt0 &i2s_alt0>;
/* I2S interface */
diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts b/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts
index 94886fcaf0b9..9358f8481f36 100644
--- a/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts
+++ b/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts
@@ -52,6 +52,76 @@
};
};
+&gpio {
+ /*
+ * Taken from rpi_SCH_3bplus_1p0_reduced.pdf and
+ * the official GPU firmware DT blob.
+ *
+ * Legend:
+ * "NC" = not connected (no rail from the SoC)
+ * "FOO" = GPIO line named "FOO" on the schematic
+ * "FOO_N" = GPIO line named "FOO" on schematic, active low
+ */
+ gpio-line-names = "ID_SDA",
+ "ID_SCL",
+ "SDA1",
+ "SCL1",
+ "GPIO_GCLK",
+ "GPIO5",
+ "GPIO6",
+ "SPI_CE1_N",
+ "SPI_CE0_N",
+ "SPI_MISO",
+ "SPI_MOSI",
+ "SPI_SCLK",
+ "GPIO12",
+ "GPIO13",
+ /* Serial port */
+ "TXD1",
+ "RXD1",
+ "GPIO16",
+ "GPIO17",
+ "GPIO18",
+ "GPIO19",
+ "GPIO20",
+ "GPIO21",
+ "GPIO22",
+ "GPIO23",
+ "GPIO24",
+ "GPIO25",
+ "GPIO26",
+ "GPIO27",
+ "HDMI_HPD_N",
+ "STATUS_LED_G",
+ /* Used by BT module */
+ "CTS0",
+ "RTS0",
+ "TXD0",
+ "RXD0",
+ /* Used by Wifi */
+ "SD1_CLK",
+ "SD1_CMD",
+ "SD1_DATA0",
+ "SD1_DATA1",
+ "SD1_DATA2",
+ "SD1_DATA3",
+ "PWM0_OUT",
+ "PWM1_OUT",
+ "ETHCLK",
+ "WIFI_CLK",
+ "SDA0",
+ "SCL0",
+ "SMPS_SCL",
+ "SMPS_SDA",
+ /* Used by SD Card */
+ "SD_CLK_R",
+ "SD_CMD_R",
+ "SD_DATA0_R",
+ "SD_DATA1_R",
+ "SD_DATA2_R",
+ "SD_DATA3_R";
+};
+
&hdmi {
hpd-gpios = <&gpio 28 GPIO_ACTIVE_LOW>;
};
diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
index 31b1c03e0ff7..ce71f578c51a 100644
--- a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
+++ b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
@@ -47,6 +47,76 @@
};
};
+&gpio {
+ /*
+ * Taken from rpi_SCH_3b_1p2_reduced.pdf and
+ * the official GPU firmware DT blob.
+ *
+ * Legend:
+ * "NC" = not connected (no rail from the SoC)
+ * "FOO" = GPIO line named "FOO" on the schematic
+ * "FOO_N" = GPIO line named "FOO" on schematic, active low
+ */
+ gpio-line-names = "ID_SDA",
+ "ID_SCL",
+ "SDA1",
+ "SCL1",
+ "GPIO_GCLK",
+ "GPIO5",
+ "GPIO6",
+ "SPI_CE1_N",
+ "SPI_CE0_N",
+ "SPI_MISO",
+ "SPI_MOSI",
+ "SPI_SCLK",
+ "GPIO12",
+ "GPIO13",
+ /* Serial port */
+ "TXD1",
+ "RXD1",
+ "GPIO16",
+ "GPIO17",
+ "GPIO18",
+ "GPIO19",
+ "GPIO20",
+ "GPIO21",
+ "GPIO22",
+ "GPIO23",
+ "GPIO24",
+ "GPIO25",
+ "GPIO26",
+ "GPIO27",
+ "", /* GPIO 28 */
+ "LAN_RUN_BOOT",
+ /* Used by BT module */
+ "CTS0",
+ "RTS0",
+ "TXD0",
+ "RXD0",
+ /* Used by Wifi */
+ "SD1_CLK",
+ "SD1_CMD",
+ "SD1_DATA0",
+ "SD1_DATA1",
+ "SD1_DATA2",
+ "SD1_DATA3",
+ "PWM0_OUT",
+ "PWM1_OUT",
+ "ETHCLK",
+ "WIFI_CLK",
+ "SDA0",
+ "SCL0",
+ "SMPS_SCL",
+ "SMPS_SDA",
+ /* Used by SD Card */
+ "SD_CLK_R",
+ "SD_CMD_R",
+ "SD_DATA0_R",
+ "SD_DATA1_R",
+ "SD_DATA2_R",
+ "SD_DATA3_R";
+};
+
&pwm {
pinctrl-names = "default";
pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio41>;
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