21 #include <linux/spi/spi.h>
24 	struct spi_device	*spi;  member
46 static void l4f00242t03_lcd_init(struct spi_device *spi)  in l4f00242t03_lcd_init()  argument
48 	struct l4f00242t03_priv *priv = spi_get_drvdata(spi);  in l4f00242t03_lcd_init()
52 	dev_dbg(&spi->dev, "initializing LCD\n");  in l4f00242t03_lcd_init()
56 		dev_err(&spi->dev, "failed to set the IO regulator voltage.\n");  in l4f00242t03_lcd_init()
61 		dev_err(&spi->dev, "failed to enable the IO regulator.\n");  in l4f00242t03_lcd_init()
67 		dev_err(&spi->dev, "failed to set the core regulator voltage.\n");  in l4f00242t03_lcd_init()
73 		dev_err(&spi->dev, "failed to enable the core regulator.\n");  in l4f00242t03_lcd_init()
82 	spi_write(spi, (const u8 *)cmd, ARRAY_SIZE(cmd) * sizeof(u16));  in l4f00242t03_lcd_init()
85 static void l4f00242t03_lcd_powerdown(struct spi_device *spi)  in l4f00242t03_lcd_powerdown()  argument
87 	struct l4f00242t03_priv *priv = spi_get_drvdata(spi);  in l4f00242t03_lcd_powerdown()
89 	dev_dbg(&spi->dev, "Powering down LCD\n");  in l4f00242t03_lcd_powerdown()
107 	struct spi_device *spi = priv->spi;  in l4f00242t03_lcd_power_set()  local
119 			dev_dbg(&spi->dev, "Resuming LCD\n");  in l4f00242t03_lcd_power_set()
121 			spi_write(spi, (const u8 *)&slpout, sizeof(u16));  in l4f00242t03_lcd_power_set()
123 			spi_write(spi, (const u8 *)&dison, sizeof(u16));  in l4f00242t03_lcd_power_set()
126 			l4f00242t03_lcd_init(spi);  in l4f00242t03_lcd_power_set()
133 			dev_dbg(&spi->dev, "Standby the LCD\n");  in l4f00242t03_lcd_power_set()
135 			spi_write(spi, (const u8 *)&disoff, sizeof(u16));  in l4f00242t03_lcd_power_set()
137 			spi_write(spi, (const u8 *)&slpin, sizeof(u16));  in l4f00242t03_lcd_power_set()
142 			l4f00242t03_lcd_init(spi);  in l4f00242t03_lcd_power_set()
150 			spi_write(spi, (const u8 *)&disoff, sizeof(u16));  in l4f00242t03_lcd_power_set()
152 			l4f00242t03_lcd_powerdown(spi);  in l4f00242t03_lcd_power_set()
166 static int l4f00242t03_probe(struct spi_device *spi)  in l4f00242t03_probe()  argument
170 	priv = devm_kzalloc(&spi->dev, sizeof(struct l4f00242t03_priv),  in l4f00242t03_probe()
175 	spi_set_drvdata(spi, priv);  in l4f00242t03_probe()
176 	spi->bits_per_word = 9;  in l4f00242t03_probe()
177 	spi_setup(spi);  in l4f00242t03_probe()
179 	priv->spi = spi;  in l4f00242t03_probe()
181 	priv->reset = devm_gpiod_get(&spi->dev, "reset", GPIOD_OUT_HIGH);  in l4f00242t03_probe()
183 		dev_err(&spi->dev,  in l4f00242t03_probe()
189 	priv->enable = devm_gpiod_get(&spi->dev, "enable", GPIOD_OUT_LOW);  in l4f00242t03_probe()
191 		dev_err(&spi->dev,  in l4f00242t03_probe()
197 	priv->io_reg = devm_regulator_get(&spi->dev, "vdd");  in l4f00242t03_probe()
199 		dev_err(&spi->dev, "%s: Unable to get the IO regulator\n",  in l4f00242t03_probe()
204 	priv->core_reg = devm_regulator_get(&spi->dev, "vcore");  in l4f00242t03_probe()
206 		dev_err(&spi->dev, "%s: Unable to get the core regulator\n",  in l4f00242t03_probe()
211 	priv->ld = devm_lcd_device_register(&spi->dev, "l4f00242t03", &spi->dev,  in l4f00242t03_probe()
217 	l4f00242t03_lcd_init(spi);  in l4f00242t03_probe()
221 	dev_info(&spi->dev, "Epson l4f00242t03 lcd probed.\n");  in l4f00242t03_probe()
226 static int l4f00242t03_remove(struct spi_device *spi)  in l4f00242t03_remove()  argument
228 	struct l4f00242t03_priv *priv = spi_get_drvdata(spi);  in l4f00242t03_remove()
234 static void l4f00242t03_shutdown(struct spi_device *spi)  in l4f00242t03_shutdown()  argument
236 	struct l4f00242t03_priv *priv = spi_get_drvdata(spi);  in l4f00242t03_shutdown()