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Diffstat (limited to 'drivers/video/backlight/ili9320.h')
-rw-r--r--drivers/video/backlight/ili9320.h77
1 files changed, 77 insertions, 0 deletions
diff --git a/drivers/video/backlight/ili9320.h b/drivers/video/backlight/ili9320.h
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index 000000000..8213cc6e9
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+++ b/drivers/video/backlight/ili9320.h
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+/* SPDX-License-Identifier: GPL-2.0-only */
+/* drivers/video/backlight/ili9320.h
+ *
+ * ILI9320 LCD controller driver core.
+ *
+ * Copyright 2007 Simtec Electronics
+ * Ben Dooks <ben@simtec.co.uk>
+ *
+ * http://armlinux.simtec.co.uk/
+*/
+
+/* Holder for register and value pairs. */
+struct ili9320_reg {
+ unsigned short address;
+ unsigned short value;
+};
+
+struct ili9320;
+
+struct ili9320_client {
+ const char *name;
+ int (*init)(struct ili9320 *ili, struct ili9320_platdata *cfg);
+
+};
+/* Device attached via an SPI bus. */
+struct ili9320_spi {
+ struct spi_device *dev;
+ struct spi_message message;
+ struct spi_transfer xfer[2];
+
+ unsigned char id;
+ unsigned char buffer_addr[4];
+ unsigned char buffer_data[4];
+};
+
+/* ILI9320 device state. */
+struct ili9320 {
+ union {
+ struct ili9320_spi spi; /* SPI attachged device. */
+ } access; /* Register access method. */
+
+ struct device *dev;
+ struct lcd_device *lcd; /* LCD device we created. */
+ struct ili9320_client *client;
+ struct ili9320_platdata *platdata;
+
+ int power; /* current power state. */
+ int initialised;
+
+ unsigned short display1;
+ unsigned short power1;
+
+ int (*write)(struct ili9320 *ili, unsigned int reg, unsigned int val);
+};
+
+
+/* ILI9320 register access routines */
+
+extern int ili9320_write(struct ili9320 *ili,
+ unsigned int reg, unsigned int value);
+
+extern int ili9320_write_regs(struct ili9320 *ili,
+ const struct ili9320_reg *values,
+ int nr_values);
+
+/* Device probe */
+
+extern int ili9320_probe_spi(struct spi_device *spi,
+ struct ili9320_client *cli);
+
+extern void ili9320_remove(struct ili9320 *lcd);
+extern void ili9320_shutdown(struct ili9320 *lcd);
+
+/* PM */
+
+extern int ili9320_suspend(struct ili9320 *lcd);
+extern int ili9320_resume(struct ili9320 *lcd);