rt-rpi-300-Add-changes-for-this-dt.patch

From 82b7ba4c5ffd8057cce06cba530d2aa2b22dfc21 Mon Sep 17 00:00:00 2001
From: Alexandru Costache <alexandru@balena.io>
Date: Tue, 10 Nov 2020 11:20:23 +0100
Subject: [PATCH] rt-rpi-300: Add changes for this dt

This patch adds the necessary confguration
for the rt-rpi-300 device type.

Upstream-status: Inappropriate [configuration]
Signed-off-by: Alexandru Costache <alexandru@balena.io>
---
 arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 30 ++++++++++++++++++++++-----
 drivers/misc/Kconfig                  |  5 +++++
 drivers/misc/Makefile                 |  1 +
 3 files changed, 31 insertions(+), 5 deletions(-)

diff --git a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
index 8c0ab39beea1..2e33563553db 100644
--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
+++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
@@ -24,6 +24,12 @@ led-pwr {
 			default-state = "keep";
 			linux,default-trigger = "default-on";
 		};
+		usr {
+			label = "USR";
+			gpios = <&gpio 4 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "heartbeat";
+			retain-state-suspended;
+		};
 	};
 
 	wifi_pwrseq: wifi-pwrseq {
@@ -326,14 +332,15 @@ &uart1 {
 &spi0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
-	cs-gpios = <&gpio 8 1>, <&gpio 7 1>;
+	cs-gpios = <&gpio 8 1>;
+	status="okay";
 
 	spidev0: spidev@0{
-		compatible = "spidev";
+		compatible = "wch,ch43x";
 		reg = <0>;	/* CE0 */
 		#address-cells = <1>;
 		#size-cells = <0>;
-		spi-max-frequency = <125000000>;
+		spi-max-frequency = <3000000>;
 	};
 
 	spidev1: spidev@1{
@@ -341,7 +348,7 @@ spidev1: spidev@1{
 		reg = <1>;	/* CE1 */
 		#address-cells = <1>;
 		#size-cells = <0>;
-		spi-max-frequency = <125000000>;
+		spi-max-frequency = <1000000>;
 	};
 };
 
@@ -352,7 +359,7 @@ spi0_pins: spi0_pins {
 	};
 
 	spi0_cs_pins: spi0_cs_pins {
-		brcm,pins = <8 7>;
+		brcm,pins = <8>;
 		brcm,function = <BCM2835_FSEL_GPIO_OUT>;
 	};
 
@@ -495,6 +502,13 @@ &i2c1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2c1_pins>;
 	clock-frequency = <100000>;
+	status="okay";
+
+	rtc@32 {
+		compatible = "epson,rx8010";
+		reg = <0x32>;
+		status="okay";
+	};
 };
 
 &i2s {
@@ -532,6 +546,12 @@ pwr_led: led-pwr {
 		linux,default-trigger = "default-on";
 		gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
 	};
+	usr_led: usr {
+		label = "led2";
+		gpios = <&gpio 4 GPIO_ACTIVE_LOW>;
+		linux,default-trigger = "heartbeat";
+		retain-state-suspended;
+	};
 };
 
 &pwm1 {
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 606331451466..4c92d19b240f 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -58,6 +58,11 @@ config AD525X_DPOT_SPI
 	  To compile this driver as a module, choose M here: the
 	  module will be called ad525x_dpot-spi.
 
+config CH432T_SPI
+	tristate "support ch432t SPI bus connection"
+	help
+	  Say Y here if you have ch432 SPI bus.
+
 config DUMMY_IRQ
 	tristate "Dummy IRQ handler"
 	help
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index e0188c30ffa8..5db99197678f 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -8,6 +8,7 @@ obj-$(CONFIG_IBMVMC)		+= ibmvmc.o
 obj-$(CONFIG_AD525X_DPOT)	+= ad525x_dpot.o
 obj-$(CONFIG_AD525X_DPOT_I2C)	+= ad525x_dpot-i2c.o
 obj-$(CONFIG_AD525X_DPOT_SPI)	+= ad525x_dpot-spi.o
+obj-$(CONFIG_CH432T_SPI)        += ch432.o
 obj-$(CONFIG_ATMEL_SSC)		+= atmel-ssc.o
 obj-$(CONFIG_BCM2835_SMI)	+= bcm2835_smi.o
 obj-$(CONFIG_DUMMY_IRQ)		+= dummy-irq.o