1 files changed, 112 insertions, 0 deletions
diff --git a/drivers/staging/olpc_dcon/olpc_dcon.h b/drivers/staging/olpc_dcon/olpc_dcon.h
new file mode 100644
index 0000000000..41bd1360b5
--- /dev/null
+++ b/drivers/staging/olpc_dcon/olpc_dcon.h
@@ -0,0 +1,112 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef OLPC_DCON_H_
+#define OLPC_DCON_H_
+
+#include <linux/notifier.h>
+#include <linux/workqueue.h>
+
+/* DCON registers */
+
+#define DCON_REG_ID		 0
+#define DCON_REG_MODE		 1
+
+#define MODE_PASSTHRU	BIT(0)
+#define MODE_SLEEP	BIT(1)
+#define MODE_SLEEP_AUTO	BIT(2)
+#define MODE_BL_ENABLE	BIT(3)
+#define MODE_BLANK	BIT(4)
+#define MODE_CSWIZZLE	BIT(5)
+#define MODE_COL_AA	BIT(6)
+#define MODE_MONO_LUMA	BIT(7)
+#define MODE_SCAN_INT	BIT(8)
+#define MODE_CLOCKDIV	BIT(9)
+#define MODE_DEBUG	BIT(14)
+#define MODE_SELFTEST	BIT(15)
+
+#define DCON_REG_HRES		0x2
+#define DCON_REG_HTOTAL		0x3
+#define DCON_REG_HSYNC_WIDTH	0x4
+#define DCON_REG_VRES		0x5
+#define DCON_REG_VTOTAL		0x6
+#define DCON_REG_VSYNC_WIDTH	0x7
+#define DCON_REG_TIMEOUT	0x8
+#define DCON_REG_SCAN_INT	0x9
+#define DCON_REG_BRIGHT		0xa
+#define DCON_REG_MEM_OPT_A	0x41
+#define DCON_REG_MEM_OPT_B	0x42
+
+/* Load Delay Locked Loop (DLL) settings for clock delay */
+#define MEM_DLL_CLOCK_DELAY	BIT(0)
+/* Memory controller power down function */
+#define MEM_POWER_DOWN		BIT(8)
+/* Memory controller software reset */
+#define MEM_SOFT_RESET		BIT(0)
+
+/* Status values */
+
+#define DCONSTAT_SCANINT	0
+#define DCONSTAT_SCANINT_DCON	1
+#define DCONSTAT_DISPLAYLOAD	2
+#define DCONSTAT_MISSED		3
+
+/* Source values */
+
+#define DCON_SOURCE_DCON        0
+#define DCON_SOURCE_CPU         1
+
+/* Interrupt */
+#define DCON_IRQ                6
+
+struct dcon_priv {
+	struct i2c_client *client;
+	struct fb_info *fbinfo;
+	struct backlight_device *bl_dev;
+
+	wait_queue_head_t waitq;
+	struct work_struct switch_source;
+	struct notifier_block reboot_nb;
+
+	/* Shadow register for the DCON_REG_MODE register */
+	u8 disp_mode;
+
+	/* The current backlight value - this saves us some smbus traffic */
+	u8 bl_val;
+
+	/* Current source, initialized at probe time */
+	int curr_src;
+
+	/* Desired source */
+	int pending_src;
+
+	/* Variables used during switches */
+	bool switched;
+	ktime_t irq_time;
+	ktime_t load_time;
+
+	/* Current output type; true == mono, false == color */
+	bool mono;
+	bool asleep;
+	/* This get set while controlling fb blank state from the driver */
+	bool ignore_fb_events;
+};
+
+struct dcon_platform_data {
+	int (*init)(struct dcon_priv *dcon);
+	void (*bus_stabilize_wiggle)(void);
+	void (*set_dconload)(int load);
+	int (*read_status)(u8 *status);
+};
+
+struct dcon_gpio {
+	const char *name;
+	unsigned long flags;
+};
+
+#include <linux/interrupt.h>
+
+irqreturn_t dcon_interrupt(int irq, void *id);
+
+extern struct dcon_platform_data dcon_pdata_xo_1;
+extern struct dcon_platform_data dcon_pdata_xo_1_5;
+
+#endif