[PATCH v2 29/38] ARM: orion5x: use DT to describe I2C devices on edmini_v2

[Thomas Petazzoni]

This commit converts the already partially DT-converted edmini_v2
platform to use the Device Tree for I2C bus and devices.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
---
 .../dts/orion5x-lacie-ethernet-disk-mini-v2.dts    | 14 +++++++++++++
 arch/arm/mach-orion5x/edmini_v2-setup.c            | 24 ----------------------
 2 files changed, 14 insertions(+), 24 deletions(-)

diff --git a/arch/arm/boot/dts/orion5x-lacie-ethernet-disk-mini-v2.dts b/arch/arm/boot/dts/orion5x-lacie-ethernet-disk-mini-v2.dts
index aa74b00..41b2ab5 100644
--- a/arch/arm/boot/dts/orion5x-lacie-ethernet-disk-mini-v2.dts
+++ b/arch/arm/boot/dts/orion5x-lacie-ethernet-disk-mini-v2.dts
@@ -10,6 +10,7 @@
 
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/input/input.h>
+#include <dt-bindings/interrupt-controller/irq.h>
 #include "orion5x-mv88f5182.dtsi"
 
 / {
@@ -63,6 +64,19 @@
 	};
 };
 
+&i2c {
+	status = "okay";
+	clock-frequency = <100000>;
+	#address-cells = <1>;
+
+	rtc at 32 {
+		compatible = "ricoh,rs5c372a";
+		reg = <0x32>;
+		interrupt-parent = <&gpio0>;
+		interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
+	};
+};
+
 &mdio {
 	status = "okay";
 
diff --git a/arch/arm/mach-orion5x/edmini_v2-setup.c b/arch/arm/mach-orion5x/edmini_v2-setup.c
index c50469e..75648ab 100644
--- a/arch/arm/mach-orion5x/edmini_v2-setup.c
+++ b/arch/arm/mach-orion5x/edmini_v2-setup.c
@@ -96,17 +96,6 @@ static struct platform_device edmini_v2_nor_flash = {
 };
 
 /*****************************************************************************
- * RTC 5C372a on I2C bus
- ****************************************************************************/
-
-#define EDMINIV2_RTC_GPIO	3
-
-static struct i2c_board_info __initdata edmini_v2_i2c_rtc = {
-	I2C_BOARD_INFO("rs5c372a", 0x32),
-	.irq = 0,
-};
-
-/*****************************************************************************
  * General Setup
  ****************************************************************************/
 
@@ -125,17 +114,4 @@ void __init edmini_v2_init(void)
 
 	pr_notice("edmini_v2: USB device port, flash write and power-off "
 		  "are not yet supported.\n");
-
-	/* Get RTC IRQ and register the chip */
-	if (gpio_request(EDMINIV2_RTC_GPIO, "rtc") == 0) {
-		if (gpio_direction_input(EDMINIV2_RTC_GPIO) == 0)
-			edmini_v2_i2c_rtc.irq = gpio_to_irq(EDMINIV2_RTC_GPIO);
-		else
-			gpio_free(EDMINIV2_RTC_GPIO);
-	}
-
-	if (edmini_v2_i2c_rtc.irq == 0)
-		pr_warning("edmini_v2: failed to get RTC IRQ\n");
-
-	i2c_register_board_info(0, &edmini_v2_i2c_rtc, 1);
 }
-- 
1.9.2