MIPS: qi_lb60: Move MMC configuration to devicetree

Move the MMC configuration from the board C file to devicetree.

The 'power' GPIO was removed and instead the vmmc regulator is used,
to follow the changes introduced in the jz4740-mmc driver.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Paul Burton <paul.burton@mips.com>

Author: pcercuei

arch/mips/boot/dts/ingenic/qi_lb60.dts

@@ -2,13 +2,23 @@
 /dts-v1/;
 
 #include "jz4740.dtsi"
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	compatible = "qi,lb60", "ingenic,jz4740";
 
 	chosen {
 		stdout-path = &uart0;
 	};
+
+	mmc_power: fixedregulator {
+		compatible = "regulator-fixed";
+		regulator-name = "mmc_vcc";
+		gpio = <&gpd 2 0>;
+
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
 };
 
 &ext {
@@ -30,4 +40,27 @@
 		groups = "uart0-data";
 		bias-disable;
 	};
+
+	pins_mmc: mmc {
+		mmc {
+			function = "mmc";
+			groups = "mmc-1bit", "mmc-4bit";
+			bias-disable;
+		};
+
+		mmc-gpios {
+			pins = "PD0", "PD2";
+			bias-disable;
+		};
+	};
+};
+
+&mmc {
+	bus-width = <4>;
+	max-frequency = <24000000>;
+	cd-gpios = <&gpd 0 GPIO_ACTIVE_HIGH>;
+	vmmc-supply = <&mmc_power>;
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pins_mmc>;
 };

arch/mips/jz4740/board-qi_lb60.c

@@ -30,7 +30,6 @@
 
 #include <asm/mach-jz4740/gpio.h>
 #include <asm/mach-jz4740/jz4740_fb.h>
-#include <asm/mach-jz4740/jz4740_mmc.h>
 
 #include <linux/regulator/fixed.h>
 #include <linux/regulator/machine.h>
@@ -377,19 +376,6 @@ static struct platform_device qi_lb60_gpio_keys = {
 	}
 };
 
-static struct jz4740_mmc_platform_data qi_lb60_mmc_pdata = {
-	/* Intentionally left blank */
-};
-
-static struct gpiod_lookup_table qi_lb60_mmc_gpio_table = {
-	.dev_id = "jz4740-mmc.0",
-	.table = {
-		GPIO_LOOKUP("GPIOD", 0, "cd", GPIO_ACTIVE_HIGH),
-		GPIO_LOOKUP("GPIOD", 2, "power", GPIO_ACTIVE_LOW),
-		{ },
-	},
-};
-
 /* beeper */
 static struct pwm_lookup qi_lb60_pwm_lookup[] = {
 	PWM_LOOKUP("jz4740-pwm", 4, "pwm-beeper", NULL, 0,
@@ -440,7 +426,6 @@ static struct gpiod_lookup_table qi_lb60_audio_gpio_table = {
 static struct platform_device *jz_platform_devices[] __initdata = {
 	&jz4740_udc_device,
 	&jz4740_udc_xceiv_device,
-	&jz4740_mmc_device,
 	&jz4740_nand_device,
 	&qi_lb60_keypad,
 	&qi_lb60_spigpio_device,
@@ -450,17 +435,12 @@ static struct platform_device *jz_platform_devices[] __initdata = {
 	&jz4740_codec_device,
 	&jz4740_adc_device,
 	&jz4740_pwm_device,
-	&jz4740_dma_device,
 	&qi_lb60_gpio_keys,
 	&qi_lb60_pwm_beeper,
 	&qi_lb60_charger_device,
 	&qi_lb60_audio_device,
 };
 
-static unsigned long pin_cfg_bias_disable[] = {
-	    PIN_CONFIG_BIAS_DISABLE,
-};
-
 static struct pinctrl_map pin_map[] __initdata = {
 	/* NAND pin configuration */
 	PIN_MAP_MUX_GROUP_DEFAULT("jz4740-nand",
@@ -472,16 +452,6 @@ static struct pinctrl_map pin_map[] __initdata = {
 	PIN_MAP_MUX_GROUP("jz4740-fb", PINCTRL_STATE_SLEEP,
 			"10010000.pin-controller", "lcd-no-pins", "lcd"),
 
-	/* MMC pin configuration */
-	PIN_MAP_MUX_GROUP_DEFAULT("jz4740-mmc.0",
-			"10010000.pin-controller", "mmc-1bit", "mmc"),
-	PIN_MAP_MUX_GROUP_DEFAULT("jz4740-mmc.0",
-			"10010000.pin-controller", "mmc-4bit", "mmc"),
-	PIN_MAP_CONFIGS_PIN_DEFAULT("jz4740-mmc.0",
-			"10010000.pin-controller", "PD0", pin_cfg_bias_disable),
-	PIN_MAP_CONFIGS_PIN_DEFAULT("jz4740-mmc.0",
-			"10010000.pin-controller", "PD2", pin_cfg_bias_disable),
-
 	/* PWM pin configuration */
 	PIN_MAP_MUX_GROUP_DEFAULT("jz4740-pwm",
 			"10010000.pin-controller", "pwm4", "pwm4"),
@@ -493,12 +463,10 @@ static int __init qi_lb60_init_platform_devices(void)
 	jz4740_framebuffer_device.dev.platform_data = &qi_lb60_fb_pdata;
 	jz4740_nand_device.dev.platform_data = &qi_lb60_nand_pdata;
 	jz4740_adc_device.dev.platform_data = &qi_lb60_battery_pdata;
-	jz4740_mmc_device.dev.platform_data = &qi_lb60_mmc_pdata;
 
 	gpiod_add_lookup_table(&qi_lb60_audio_gpio_table);
 	gpiod_add_lookup_table(&qi_lb60_nand_gpio_table);
 	gpiod_add_lookup_table(&qi_lb60_spigpio_gpio_table);
-	gpiod_add_lookup_table(&qi_lb60_mmc_gpio_table);
 
 	spi_register_board_info(qi_lb60_spi_board_info,
 				ARRAY_SIZE(qi_lb60_spi_board_info));