media: ov5640: Remove ov5640_mode_init_data

The ov5640_mode_init_data is a fictional sensor more which is used to
program the initial sensor settings.

It is only used to initialize the sensor and can be replaced
it with a throw-away mode which just wraps the register table.

Also rename the register table to drop the format from the name to make
it clear an actual sensor mode has to be applied after the initial
programming.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/i2c/ov5640.c

@@ -404,7 +404,7 @@ static inline bool ov5640_is_csi2(const struct ov5640_dev *sensor)
  * over i2c.
  */
 /* YUV422 UYVY VGA@30fps */
-static const struct reg_value ov5640_init_setting_30fps_VGA[] = {
+static const struct reg_value ov5640_init_setting[] = {
 	{0x3103, 0x11, 0, 0}, {0x3008, 0x82, 0, 5}, {0x3008, 0x42, 0, 0},
 	{0x3103, 0x03, 0, 0}, {0x3630, 0x36, 0, 0},
 	{0x3631, 0x0e, 0, 0}, {0x3632, 0xe2, 0, 0}, {0x3633, 0x12, 0, 0},
@@ -552,50 +552,6 @@ static const struct reg_value ov5640_setting_QSXGA_2592_1944[] = {
 	{0x3824, 0x02, 0, 0}, {0x5001, 0x83, 0, 70},
 };
 
-/* power-on sensor init reg table */
-static const struct ov5640_mode_info ov5640_mode_init_data = {
-		.id		= 0,
-		.dn_mode	= SUBSAMPLING,
-		.pixel_rate	= OV5640_PIXEL_RATE_96M,
-		.width	= 640,
-		.height	= 480,
-		.dvp_timings = {
-			.analog_crop = {
-				.left	= 0,
-				.top	= 4,
-				.width	= 2624,
-				.height	= 1944,
-			},
-			.crop = {
-				.left	= 16,
-				.top	= 6,
-				.width	= 640,
-				.height	= 480,
-			},
-			.htot		= 1896,
-			.vblank_def	= 504,
-		},
-		.csi2_timings = {
-			.analog_crop = {
-				.left	= OV5640_PIXEL_ARRAY_LEFT,
-				.top	= OV5640_PIXEL_ARRAY_TOP,
-				.width	= OV5640_PIXEL_ARRAY_WIDTH,
-				.height	= OV5640_PIXEL_ARRAY_HEIGHT,
-			},
-			.crop = {
-				.left	= 2,
-				.top	= 4,
-				.width	= 640,
-				.height	= 480,
-			},
-			.htot		= 1896,
-			.vblank_def	= 504,
-		},
-		.reg_data	= ov5640_init_setting_30fps_VGA,
-		.reg_data_size	= ARRAY_SIZE(ov5640_init_setting_30fps_VGA),
-		.max_fps	= OV5640_30_FPS
-};
-
 static const struct ov5640_mode_info ov5640_mode_data[OV5640_NUM_MODES] = {
 	{
 		/* 160x120 */
@@ -1607,17 +1563,16 @@ static int ov5640_set_timings(struct ov5640_dev *sensor,
 	return 0;
 }
 
-static int ov5640_load_regs(struct ov5640_dev *sensor,
-			    const struct ov5640_mode_info *mode)
+static void ov5640_load_regs(struct ov5640_dev *sensor,
+			     const struct reg_value *regs, unsigned int regnum)
 {
-	const struct reg_value *regs = mode->reg_data;
 	unsigned int i;
 	u32 delay_ms;
 	u16 reg_addr;
 	u8 mask, val;
 	int ret = 0;
 
-	for (i = 0; i < mode->reg_data_size; ++i, ++regs) {
+	for (i = 0; i < regnum; ++i, ++regs) {
 		delay_ms = regs->delay_ms;
 		reg_addr = regs->reg_addr;
 		val = regs->val;
@@ -1639,8 +1594,6 @@ static int ov5640_load_regs(struct ov5640_dev *sensor,
 		if (delay_ms)
 			usleep_range(1000 * delay_ms, 1000 * delay_ms + 100);
 	}
-
-	return ov5640_set_timings(sensor, mode);
 }
 
 static int ov5640_set_autoexposure(struct ov5640_dev *sensor, bool on)
@@ -2093,7 +2046,8 @@ static int ov5640_set_mode_exposure_calc(struct ov5640_dev *sensor,
 		return ret;
 
 	/* Write capture setting */
-	ret = ov5640_load_regs(sensor, mode);
+	ov5640_load_regs(sensor, mode->reg_data, mode->reg_data_size);
+	ret = ov5640_set_timings(sensor, mode);
 	if (ret < 0)
 		return ret;
 
@@ -2217,7 +2171,8 @@ static int ov5640_set_mode_direct(struct ov5640_dev *sensor,
 		return -EINVAL;
 
 	/* Write capture setting */
-	return ov5640_load_regs(sensor, mode);
+	ov5640_load_regs(sensor, mode->reg_data, mode->reg_data_size);
+	return ov5640_set_timings(sensor, mode);
 }
 
 static int ov5640_set_mode(struct ov5640_dev *sensor)
@@ -2315,10 +2270,8 @@ static int ov5640_restore_mode(struct ov5640_dev *sensor)
 	int ret;
 
 	/* first load the initial register values */
-	ret = ov5640_load_regs(sensor, &ov5640_mode_init_data);
-	if (ret < 0)
-		return ret;
-	sensor->last_mode = &ov5640_mode_init_data;
+	ov5640_load_regs(sensor, ov5640_init_setting,
+			 ARRAY_SIZE(ov5640_init_setting));
 
 	ret = ov5640_mod_reg(sensor, OV5640_REG_SYS_ROOT_DIVIDER, 0x3f,
 			     (ilog2(OV5640_SCLK2X_ROOT_DIV) << 2) |