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2024-05-10 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb

 kernel/drivers/video/backlight/tosa_lcd.c
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@@ -1,13 +1,9 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  *  LCD / Backlight control code for Sharp SL-6000x (tosa)
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  *
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  *  Copyright (c) 2005		Dirk Opfer
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  *  Copyright (c) 2007,2008	Dmitry Baryshkov
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- *
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- *  This program is free software; you can redistribute it and/or modify
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- *  it under the terms of the GNU General Public License version 2 as
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- *  published by the Free Software Foundation.
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- *
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  */
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 #include <linux/kernel.h>
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@@ -16,14 +12,14 @@
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 #include <linux/spi/spi.h>
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 #include <linux/i2c.h>
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 #include <linux/slab.h>
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-#include <linux/gpio.h>
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+#include <linux/gpio/consumer.h>
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 #include <linux/delay.h>
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 #include <linux/lcd.h>
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 #include <linux/fb.h>
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19
 
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 #include <asm/mach/sharpsl_param.h>
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21
 
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-#include <mach/tosa.h>
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+#include "tosa_bl.h"
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23
 
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 #define POWER_IS_ON(pwr)	((pwr) <= FB_BLANK_NORMAL)
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@@ -32,12 +28,26 @@
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 #define TG_REG0_UD	0x0004
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 #define TG_REG0_LR	0x0008
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+/*
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+ * Timing Generator
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+ */
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+#define TG_PNLCTL 	0x00
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+#define TG_TPOSCTL 	0x01
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+#define TG_DUTYCTL 	0x02
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+#define TG_GPOSR 	0x03
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+#define TG_GPODR1 	0x04
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+#define TG_GPODR2 	0x05
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+#define TG_PINICTL 	0x06
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+#define TG_HPOSCTL 	0x07
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+
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+
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 #define	DAC_BASE	0x4e
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 struct tosa_lcd_data {
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 	struct spi_device *spi;
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 	struct lcd_device *lcd;
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 	struct i2c_client *i2c;
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+	struct gpio_desc *gpiod_tg;
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 	int lcd_power;
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 	bool is_vga;
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@@ -70,7 +80,7 @@
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 static void tosa_lcd_tg_init(struct tosa_lcd_data *data)
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 {
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 	/* TG on */
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-	gpio_set_value(TOSA_GPIO_TG_ON, 0);
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+	gpiod_set_value(data->gpiod_tg, 0);
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 	mdelay(60);
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@@ -97,18 +107,19 @@
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 	/* TG LCD GVSS */
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 	tosa_tg_send(spi, TG_PINICTL, 0x0);
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-	if (!data->i2c) {
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+	if (IS_ERR_OR_NULL(data->i2c)) {
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 		/*
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 		 * after the pannel is powered up the first time,
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 		 * we can access the i2c bus so probe for the DAC
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 		 */
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 		struct i2c_adapter *adap = i2c_get_adapter(0);
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 		struct i2c_board_info info = {
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+			.dev_name = "tosa-bl",
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 			.type	= "tosa-bl",
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 			.addr	= DAC_BASE,
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 			.platform_data = data->spi,
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 		};
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-		data->i2c = i2c_new_device(adap, &info);
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+		data->i2c = i2c_new_client_device(adap, &info);
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 	}
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 }
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@@ -125,7 +136,7 @@
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 	mdelay(50);
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 	/* TG Off */
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-	gpio_set_value(TOSA_GPIO_TG_ON, 1);
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+	gpiod_set_value(data->gpiod_tg, 1);
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 	mdelay(100);
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 }
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@@ -195,10 +206,9 @@
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 	data->spi = spi;
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 	spi_set_drvdata(spi, data);
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-	ret = devm_gpio_request_one(&spi->dev, TOSA_GPIO_TG_ON,
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-				GPIOF_OUT_INIT_LOW, "tg #pwr");
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-	if (ret < 0)
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-		return ret;
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+	data->gpiod_tg = devm_gpiod_get(&spi->dev, "tg #pwr", GPIOD_OUT_LOW);
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+	if (IS_ERR(data->gpiod_tg))
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+		return PTR_ERR(data->gpiod_tg);
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 	mdelay(60);
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@@ -226,8 +236,7 @@
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 {
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 	struct tosa_lcd_data *data = spi_get_drvdata(spi);
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-	if (data->i2c)
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-		i2c_unregister_device(data->i2c);
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+	i2c_unregister_device(data->i2c);
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 	tosa_lcd_tg_off(data);
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