Merge tag 'backlight-next-5.7' of git://git.kernel.org/pub/scm/linux/…

…kernel/git/lee/backlight Pull backlight updates from Lee Jones: "Switch pwm_bl and corgi_lcd drivers to use GPIO descriptors" * tag 'backlight-next-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight: backlight: corgi: Convert to use GPIO descriptors backlight: pwm_bl: Switch to full GPIO descriptor
laijs · Apr 8, 2020 · b574beb · b574beb
2 parents 38e2c63 + ee0c8e4
commit b574beb
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Showing 30 changed files with 65 additions and 112 deletions.
diff --git a/arch/arm/mach-pxa/cm-x300.c b/arch/arm/mach-pxa/cm-x300.c
@@ -312,7 +312,6 @@ static struct pwm_lookup cm_x300_pwm_lookup[] = {
 static struct platform_pwm_backlight_data cm_x300_backlight_data = {
 	.max_brightness	= 100,
 	.dft_brightness	= 100,
-	.enable_gpio	= -1,
 };
 
 static struct platform_device cm_x300_backlight_device = {

diff --git a/arch/arm/mach-pxa/colibri-pxa270-income.c b/arch/arm/mach-pxa/colibri-pxa270-income.c
@@ -202,7 +202,6 @@ static struct pwm_lookup income_pwm_lookup[] = {
 static struct platform_pwm_backlight_data income_backlight_data = {
 	.max_brightness	= 0x3ff,
 	.dft_brightness	= 0x1ff,
-	.enable_gpio	= -1,
 };
 
 static struct platform_device income_backlight = {

diff --git a/arch/arm/mach-pxa/corgi.c b/arch/arm/mach-pxa/corgi.c
@@ -563,13 +563,20 @@ static void corgi_bl_kick_battery(void)
 	}
 }
 
+static struct gpiod_lookup_table corgi_lcdcon_gpio_table = {
+	.dev_id = "spi1.1",
+	.table = {
+		GPIO_LOOKUP("gpio-pxa", CORGI_GPIO_BACKLIGHT_CONT,
+			    "BL_CONT", GPIO_ACTIVE_HIGH),
+		{ },
+	},
+};
+
 static struct corgi_lcd_platform_data corgi_lcdcon_info = {
 	.init_mode		= CORGI_LCD_MODE_VGA,
 	.max_intensity		= 0x2f,
 	.default_intensity	= 0x1f,
 	.limit_mask		= 0x0b,
-	.gpio_backlight_cont	= CORGI_GPIO_BACKLIGHT_CONT,
-	.gpio_backlight_on	= -1,
 	.kick_battery		= corgi_bl_kick_battery,
 };
 
@@ -609,6 +616,7 @@ static struct spi_board_info corgi_spi_devices[] = {
 static void __init corgi_init_spi(void)
 {
 	pxa2xx_set_spi_info(1, &corgi_spi_info);
+	gpiod_add_lookup_table(&corgi_lcdcon_gpio_table);
 	spi_register_board_info(ARRAY_AND_SIZE(corgi_spi_devices));
 }
 #else

diff --git a/arch/arm/mach-pxa/ezx.c b/arch/arm/mach-pxa/ezx.c
@@ -55,7 +55,6 @@ static struct pwm_lookup ezx_pwm_lookup[] __maybe_unused = {
 static struct platform_pwm_backlight_data ezx_backlight_data = {
 	.max_brightness	= 1023,
 	.dft_brightness	= 1023,
-	.enable_gpio	= -1,
 };
 
 static struct platform_device ezx_backlight_device = {

diff --git a/arch/arm/mach-pxa/hx4700.c b/arch/arm/mach-pxa/hx4700.c
@@ -556,7 +556,6 @@ static struct platform_device hx4700_lcd = {
 static struct platform_pwm_backlight_data backlight_data = {
 	.max_brightness = 200,
 	.dft_brightness = 100,
-	.enable_gpio    = -1,
 };
 
 static struct platform_device backlight = {

diff --git a/arch/arm/mach-pxa/lpd270.c b/arch/arm/mach-pxa/lpd270.c
@@ -277,7 +277,6 @@ static struct pwm_lookup lpd270_pwm_lookup[] = {
 static struct platform_pwm_backlight_data lpd270_backlight_data = {
 	.max_brightness	= 1,
 	.dft_brightness	= 1,
-	.enable_gpio	= -1,
 };
 
 static struct platform_device lpd270_backlight_device = {

diff --git a/arch/arm/mach-pxa/magician.c b/arch/arm/mach-pxa/magician.c
@@ -401,7 +401,6 @@ static void magician_backlight_exit(struct device *dev)
 static struct platform_pwm_backlight_data backlight_data = {
 	.max_brightness	= 272,
 	.dft_brightness	= 100,
-	.enable_gpio	= -1,
 	.init		= magician_backlight_init,
 	.notify		= magician_backlight_notify,
 	.exit		= magician_backlight_exit,

diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c
@@ -256,7 +256,6 @@ static struct pwm_lookup mainstone_pwm_lookup[] = {
 static struct platform_pwm_backlight_data mainstone_backlight_data = {
 	.max_brightness	= 1023,
 	.dft_brightness	= 1023,
-	.enable_gpio	= -1,
 };
 
 static struct platform_device mainstone_backlight_device = {

diff --git a/arch/arm/mach-pxa/mioa701.c b/arch/arm/mach-pxa/mioa701.c
@@ -176,7 +176,6 @@ static struct pwm_lookup mioa701_pwm_lookup[] = {
 static struct platform_pwm_backlight_data mioa701_backlight_data = {
 	.max_brightness	= 100,
 	.dft_brightness	= 50,
-	.enable_gpio	= -1,
 };
 
 /*

diff --git a/arch/arm/mach-pxa/palm27x.c b/arch/arm/mach-pxa/palm27x.c
@@ -318,7 +318,6 @@ static void palm27x_backlight_exit(struct device *dev)
 static struct platform_pwm_backlight_data palm27x_backlight_data = {
 	.max_brightness	= 0xfe,
 	.dft_brightness	= 0x7e,
-	.enable_gpio	= -1,
 	.init		= palm27x_backlight_init,
 	.notify		= palm27x_backlight_notify,
 	.exit		= palm27x_backlight_exit,

diff --git a/arch/arm/mach-pxa/palmtc.c b/arch/arm/mach-pxa/palmtc.c
@@ -174,6 +174,15 @@ static inline void palmtc_keys_init(void) {}
  * Backlight
  ******************************************************************************/
 #if defined(CONFIG_BACKLIGHT_PWM) || defined(CONFIG_BACKLIGHT_PWM_MODULE)
+
+static struct gpiod_lookup_table palmtc_pwm_bl_gpio_table = {
+	.dev_id = "pwm-backlight.0",
+	.table = {
+		GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTC_BL_POWER,
+			    "enable", GPIO_ACTIVE_HIGH),
+	},
+};
+
 static struct pwm_lookup palmtc_pwm_lookup[] = {
 	PWM_LOOKUP("pxa25x-pwm.1", 0, "pwm-backlight.0", NULL, PALMTC_PERIOD_NS,
 		   PWM_POLARITY_NORMAL),
@@ -182,7 +191,6 @@ static struct pwm_lookup palmtc_pwm_lookup[] = {
 static struct platform_pwm_backlight_data palmtc_backlight_data = {
 	.max_brightness	= PALMTC_MAX_INTENSITY,
 	.dft_brightness	= PALMTC_MAX_INTENSITY,
-	.enable_gpio	= GPIO_NR_PALMTC_BL_POWER,
 };
 
 static struct platform_device palmtc_backlight = {
@@ -195,6 +203,7 @@ static struct platform_device palmtc_backlight = {
 
 static void __init palmtc_pwm_init(void)
 {
+	gpiod_add_lookup_table(&palmtc_pwm_bl_gpio_table);
 	pwm_add_table(palmtc_pwm_lookup, ARRAY_SIZE(palmtc_pwm_lookup));
 	platform_device_register(&palmtc_backlight);
 }

diff --git a/arch/arm/mach-pxa/palmte2.c b/arch/arm/mach-pxa/palmte2.c
@@ -175,7 +175,6 @@ static void palmte2_backlight_exit(struct device *dev)
 static struct platform_pwm_backlight_data palmte2_backlight_data = {
 	.max_brightness	= PALMTE2_MAX_INTENSITY,
 	.dft_brightness	= PALMTE2_MAX_INTENSITY,
-	.enable_gpio	= -1,
 	.init		= palmte2_backlight_init,
 	.notify		= palmte2_backlight_notify,
 	.exit		= palmte2_backlight_exit,

diff --git a/arch/arm/mach-pxa/pcm990-baseboard.c b/arch/arm/mach-pxa/pcm990-baseboard.c
@@ -154,7 +154,6 @@ static struct pwm_lookup pcm990_pwm_lookup[] = {
 static struct platform_pwm_backlight_data pcm990_backlight_data = {
 	.max_brightness	= 1023,
 	.dft_brightness	= 1023,
-	.enable_gpio	= -1,
 };
 
 static struct platform_device pcm990_backlight_device = {

diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
@@ -525,13 +525,33 @@ static void spitz_bl_kick_battery(void)
 	}
 }
 
+static struct gpiod_lookup_table spitz_lcdcon_gpio_table = {
+	.dev_id = "spi2.1",
+	.table = {
+		GPIO_LOOKUP("gpio-pxa", SPITZ_GPIO_BACKLIGHT_CONT,
+			    "BL_CONT", GPIO_ACTIVE_LOW),
+		GPIO_LOOKUP("gpio-pxa", SPITZ_GPIO_BACKLIGHT_ON,
+			    "BL_ON", GPIO_ACTIVE_HIGH),
+		{ },
+	},
+};
+
+static struct gpiod_lookup_table akita_lcdcon_gpio_table = {
+	.dev_id = "spi2.1",
+	.table = {
+		GPIO_LOOKUP("gpio-pxa", AKITA_GPIO_BACKLIGHT_CONT,
+			    "BL_CONT", GPIO_ACTIVE_LOW),
+		GPIO_LOOKUP("gpio-pxa", AKITA_GPIO_BACKLIGHT_ON,
+			    "BL_ON", GPIO_ACTIVE_HIGH),
+		{ },
+	},
+};
+
 static struct corgi_lcd_platform_data spitz_lcdcon_info = {
 	.init_mode		= CORGI_LCD_MODE_VGA,
 	.max_intensity		= 0x2f,
 	.default_intensity	= 0x1f,
 	.limit_mask		= 0x0b,
-	.gpio_backlight_cont	= SPITZ_GPIO_BACKLIGHT_CONT,
-	.gpio_backlight_on	= SPITZ_GPIO_BACKLIGHT_ON,
 	.kick_battery		= spitz_bl_kick_battery,
 };
 
@@ -574,12 +594,10 @@ static struct pxa2xx_spi_controller spitz_spi_info = {
 
 static void __init spitz_spi_init(void)
 {
-	struct corgi_lcd_platform_data *lcd_data = &spitz_lcdcon_info;
-
-	if (machine_is_akita()) {
-		lcd_data->gpio_backlight_cont = AKITA_GPIO_BACKLIGHT_CONT;
-		lcd_data->gpio_backlight_on = AKITA_GPIO_BACKLIGHT_ON;
-	}
+	if (machine_is_akita())
+		gpiod_add_lookup_table(&akita_lcdcon_gpio_table);
+	else
+		gpiod_add_lookup_table(&spitz_lcdcon_gpio_table);
 
 	pxa2xx_set_spi_info(2, &spitz_spi_info);
 	spi_register_board_info(ARRAY_AND_SIZE(spitz_spi_devices));

diff --git a/arch/arm/mach-pxa/tavorevb.c b/arch/arm/mach-pxa/tavorevb.c
@@ -178,13 +178,11 @@ static struct platform_pwm_backlight_data tavorevb_backlight_data[] = {
 		/* primary backlight */
 		.max_brightness	= 100,
 		.dft_brightness	= 100,
-		.enable_gpio	= -1,
 	},
 	[1] = {
 		/* secondary backlight */
 		.max_brightness	= 100,
 		.dft_brightness	= 100,
-		.enable_gpio	= -1,
 	},
 };
 

diff --git a/arch/arm/mach-pxa/viper.c b/arch/arm/mach-pxa/viper.c
@@ -404,7 +404,6 @@ static void viper_backlight_exit(struct device *dev)
 static struct platform_pwm_backlight_data viper_backlight_data = {
 	.max_brightness	= 100,
 	.dft_brightness	= 100,
-	.enable_gpio	= -1,
 	.init		= viper_backlight_init,
 	.notify		= viper_backlight_notify,
 	.exit		= viper_backlight_exit,

diff --git a/arch/arm/mach-pxa/z2.c b/arch/arm/mach-pxa/z2.c
@@ -210,13 +210,11 @@ static struct platform_pwm_backlight_data z2_backlight_data[] = {
 		/* Keypad Backlight */
 		.max_brightness	= 1023,
 		.dft_brightness	= 0,
-		.enable_gpio	= -1,
 	},
 	[1] = {
 		/* LCD Backlight */
 		.max_brightness	= 1023,
 		.dft_brightness	= 512,
-		.enable_gpio	= -1,
 	},
 };
 

diff --git a/arch/arm/mach-pxa/zylonite.c b/arch/arm/mach-pxa/zylonite.c
@@ -117,7 +117,6 @@ static struct pwm_lookup zylonite_pwm_lookup[] = {
 static struct platform_pwm_backlight_data zylonite_backlight_data = {
 	.max_brightness	= 100,
 	.dft_brightness	= 100,
-	.enable_gpio	= -1,
 };
 
 static struct platform_device zylonite_backlight_device = {

diff --git a/arch/arm/mach-s3c24xx/mach-h1940.c b/arch/arm/mach-s3c24xx/mach-h1940.c
@@ -516,7 +516,6 @@ static void h1940_backlight_exit(struct device *dev)
 static struct platform_pwm_backlight_data backlight_data = {
 	.max_brightness = 100,
 	.dft_brightness = 50,
-	.enable_gpio    = -1,
 	.init           = h1940_backlight_init,
 	.notify		= h1940_backlight_notify,
 	.exit           = h1940_backlight_exit,

diff --git a/arch/arm/mach-s3c24xx/mach-rx1950.c b/arch/arm/mach-s3c24xx/mach-rx1950.c
@@ -534,7 +534,6 @@ static int rx1950_backlight_notify(struct device *dev, int brightness)
 static struct platform_pwm_backlight_data rx1950_backlight_data = {
 	.max_brightness = 24,
 	.dft_brightness = 4,
-	.enable_gpio = -1,
 	.init = rx1950_backlight_init,
 	.notify = rx1950_backlight_notify,
 	.exit = rx1950_backlight_exit,

diff --git a/arch/arm/mach-s3c64xx/dev-backlight.c b/arch/arm/mach-s3c64xx/dev-backlight.c
@@ -65,7 +65,6 @@ static struct samsung_bl_drvdata samsung_dfl_bl_data __initdata = {
 	.plat_data = {
 		.max_brightness = 255,
 		.dft_brightness = 255,
-		.enable_gpio    = -1,
 		.init           = samsung_bl_init,
 		.exit           = samsung_bl_exit,
 	},
@@ -111,8 +110,6 @@ void __init samsung_bl_set(struct samsung_bl_gpio_info *gpio_info,
 		samsung_bl_data->dft_brightness = bl_data->dft_brightness;
 	if (bl_data->lth_brightness)
 		samsung_bl_data->lth_brightness = bl_data->lth_brightness;
-	if (bl_data->enable_gpio >= 0)
-		samsung_bl_data->enable_gpio = bl_data->enable_gpio;
 	if (bl_data->init)
 		samsung_bl_data->init = bl_data->init;
 	if (bl_data->notify)

diff --git a/arch/arm/mach-s3c64xx/mach-crag6410.c b/arch/arm/mach-s3c64xx/mach-crag6410.c
@@ -114,7 +114,6 @@ static struct pwm_lookup crag6410_pwm_lookup[] = {
 static struct platform_pwm_backlight_data crag6410_backlight_data = {
 	.max_brightness	= 1000,
 	.dft_brightness	= 600,
-	.enable_gpio	= -1,
 };
 
 static struct platform_device crag6410_backlight_device = {

diff --git a/arch/arm/mach-s3c64xx/mach-hmt.c b/arch/arm/mach-s3c64xx/mach-hmt.c
@@ -115,7 +115,6 @@ static void hmt_bl_exit(struct device *dev)
 static struct platform_pwm_backlight_data hmt_backlight_data = {
 	.max_brightness	= 100 * 256,
 	.dft_brightness	= 40 * 256,
-	.enable_gpio	= -1,
 	.init		= hmt_bl_init,
 	.notify		= hmt_bl_notify,
 	.exit		= hmt_bl_exit,

diff --git a/arch/arm/mach-s3c64xx/mach-smartq.c b/arch/arm/mach-s3c64xx/mach-smartq.c
@@ -150,7 +150,6 @@ static int smartq_bl_init(struct device *dev)
 static struct platform_pwm_backlight_data smartq_backlight_data = {
 	.max_brightness	= 1000,
 	.dft_brightness	= 600,
-	.enable_gpio	= -1,
 	.init		= smartq_bl_init,
 };
 

diff --git a/arch/arm/mach-s3c64xx/mach-smdk6410.c b/arch/arm/mach-s3c64xx/mach-smdk6410.c
@@ -623,7 +623,7 @@ static struct pwm_lookup smdk6410_pwm_lookup[] = {
 };
 
 static struct platform_pwm_backlight_data smdk6410_bl_data = {
-	.enable_gpio = -1,
+	/* Intentionally blank */
 };
 
 static struct dwc2_hsotg_plat smdk6410_hsotg_pdata;

diff --git a/arch/unicore32/kernel/puv3-nb0916.c b/arch/unicore32/kernel/puv3-nb0916.c
@@ -55,7 +55,6 @@ static struct pwm_lookup nb0916_pwm_lookup[] = {
 static struct platform_pwm_backlight_data nb0916_backlight_data = {
 	.max_brightness	= 100,
 	.dft_brightness	= 100,
-	.enable_gpio	= -1,
 };
 
 static struct gpio_keys_button nb0916_gpio_keys[] = {