4 files changed, 196 insertions, 182 deletions

diff --git a/drivers/media/i2c/smiapp/smiapp-core.c b/drivers/media/i2c/smiapp/smiapp-core.c
index a80d7701b519..5e4f6a2ef78e 100644
--- a/drivers/media/i2c/smiapp/smiapp-core.c
+++ b/drivers/media/i2c/smiapp/smiapp-core.c
@@ -57,6 +57,45 @@ static const struct smiapp_module_ident smiapp_module_idents[] = {
  *
  */
 
+static u32 smiapp_get_limit(struct smiapp_sensor *sensor,
+				 unsigned int limit)
+{
+	if (WARN_ON(limit >= SMIAPP_LIMIT_LAST))
+		return 1;
+
+	return sensor->limits[limit];
+}
+
+#define SMIA_LIM(sensor, limit) \
+	smiapp_get_limit(sensor, SMIAPP_LIMIT_##limit)
+
+static int smiapp_read_all_smia_limits(struct smiapp_sensor *sensor)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
+	unsigned int i;
+	int rval;
+
+	for (i = 0; i < SMIAPP_LIMIT_LAST; i++) {
+		u32 val;
+
+		rval = smiapp_read(
+			sensor, smiapp_reg_limits[i].addr, &val);
+		if (rval)
+			return rval;
+
+		sensor->limits[i] = val;
+
+		dev_dbg(&client->dev, "0x%8.8x \"%s\" = %u, 0x%x\n",
+			smiapp_reg_limits[i].addr,
+			smiapp_reg_limits[i].what, val, val);
+	}
+
+	if (SMIA_LIM(sensor, SCALER_N_MIN) == 0)
+		smiapp_replace_limit(sensor, SMIAPP_LIMIT_SCALER_N_MIN, 16);
+
+	return 0;
+}
+
 static int smiapp_read_frame_fmt(struct smiapp_sensor *sensor)
 {
 	struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
@@ -240,35 +279,35 @@ static int smiapp_pll_try(struct smiapp_sensor *sensor,
 {
 	struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
 	struct smiapp_pll_limits lim = {
-		.min_pre_pll_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_PRE_PLL_CLK_DIV],
-		.max_pre_pll_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_PRE_PLL_CLK_DIV],
-		.min_pll_ip_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_PLL_IP_FREQ_HZ],
-		.max_pll_ip_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_PLL_IP_FREQ_HZ],
-		.min_pll_multiplier = sensor->limits[SMIAPP_LIMIT_MIN_PLL_MULTIPLIER],
-		.max_pll_multiplier = sensor->limits[SMIAPP_LIMIT_MAX_PLL_MULTIPLIER],
-		.min_pll_op_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_PLL_OP_FREQ_HZ],
-		.max_pll_op_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_PLL_OP_FREQ_HZ],
-
-		.op.min_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_OP_SYS_CLK_DIV],
-		.op.max_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_OP_SYS_CLK_DIV],
-		.op.min_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_OP_PIX_CLK_DIV],
-		.op.max_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_OP_PIX_CLK_DIV],
-		.op.min_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_OP_SYS_CLK_FREQ_HZ],
-		.op.max_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_OP_SYS_CLK_FREQ_HZ],
-		.op.min_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_OP_PIX_CLK_FREQ_HZ],
-		.op.max_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_OP_PIX_CLK_FREQ_HZ],
-
-		.vt.min_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_VT_SYS_CLK_DIV],
-		.vt.max_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_VT_SYS_CLK_DIV],
-		.vt.min_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_VT_PIX_CLK_DIV],
-		.vt.max_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_VT_PIX_CLK_DIV],
-		.vt.min_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_VT_SYS_CLK_FREQ_HZ],
-		.vt.max_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_VT_SYS_CLK_FREQ_HZ],
-		.vt.min_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_VT_PIX_CLK_FREQ_HZ],
-		.vt.max_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_VT_PIX_CLK_FREQ_HZ],
-
-		.min_line_length_pck_bin = sensor->limits[SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK_BIN],
-		.min_line_length_pck = sensor->limits[SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK],
+		.min_pre_pll_clk_div = SMIA_LIM(sensor, MIN_PRE_PLL_CLK_DIV),
+		.max_pre_pll_clk_div = SMIA_LIM(sensor, MAX_PRE_PLL_CLK_DIV),
+		.min_pll_ip_freq_hz = SMIA_LIM(sensor, MIN_PLL_IP_FREQ_HZ),
+		.max_pll_ip_freq_hz = SMIA_LIM(sensor, MAX_PLL_IP_FREQ_HZ),
+		.min_pll_multiplier = SMIA_LIM(sensor, MIN_PLL_MULTIPLIER),
+		.max_pll_multiplier = SMIA_LIM(sensor, MAX_PLL_MULTIPLIER),
+		.min_pll_op_freq_hz = SMIA_LIM(sensor, MIN_PLL_OP_FREQ_HZ),
+		.max_pll_op_freq_hz = SMIA_LIM(sensor, MAX_PLL_OP_FREQ_HZ),
+
+		.op.min_sys_clk_div = SMIA_LIM(sensor, MIN_OP_SYS_CLK_DIV),
+		.op.max_sys_clk_div = SMIA_LIM(sensor, MAX_OP_SYS_CLK_DIV),
+		.op.min_pix_clk_div = SMIA_LIM(sensor, MIN_OP_PIX_CLK_DIV),
+		.op.max_pix_clk_div = SMIA_LIM(sensor, MAX_OP_PIX_CLK_DIV),
+		.op.min_sys_clk_freq_hz = SMIA_LIM(sensor, MIN_OP_SYS_CLK_FREQ_HZ),
+		.op.max_sys_clk_freq_hz = SMIA_LIM(sensor, MAX_OP_SYS_CLK_FREQ_HZ),
+		.op.min_pix_clk_freq_hz = SMIA_LIM(sensor, MIN_OP_PIX_CLK_FREQ_HZ),
+		.op.max_pix_clk_freq_hz = SMIA_LIM(sensor, MAX_OP_PIX_CLK_FREQ_HZ),
+
+		.vt.min_sys_clk_div = SMIA_LIM(sensor, MIN_VT_SYS_CLK_DIV),
+		.vt.max_sys_clk_div = SMIA_LIM(sensor, MAX_VT_SYS_CLK_DIV),
+		.vt.min_pix_clk_div = SMIA_LIM(sensor, MIN_VT_PIX_CLK_DIV),
+		.vt.max_pix_clk_div = SMIA_LIM(sensor, MAX_VT_PIX_CLK_DIV),
+		.vt.min_sys_clk_freq_hz = SMIA_LIM(sensor, MIN_VT_SYS_CLK_FREQ_HZ),
+		.vt.max_sys_clk_freq_hz = SMIA_LIM(sensor, MAX_VT_SYS_CLK_FREQ_HZ),
+		.vt.min_pix_clk_freq_hz = SMIA_LIM(sensor, MIN_VT_PIX_CLK_FREQ_HZ),
+		.vt.max_pix_clk_freq_hz = SMIA_LIM(sensor, MAX_VT_PIX_CLK_FREQ_HZ),
+
+		.min_line_length_pck_bin = SMIA_LIM(sensor, MIN_LINE_LENGTH_PCK_BIN),
+		.min_line_length_pck = SMIA_LIM(sensor, MIN_LINE_LENGTH_PCK),
 	};
 
 	return smiapp_pll_calculate(&client->dev, &lim, pll);
@@ -311,7 +350,7 @@ static void __smiapp_update_exposure_limits(struct smiapp_sensor *sensor)
 
 	max = sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].height
 		+ sensor->vblank->val
-		- sensor->limits[SMIAPP_LIMIT_COARSE_INTEGRATION_TIME_MAX_MARGIN];
+		- SMIA_LIM(sensor, COARSE_INTEGRATION_TIME_MAX_MARGIN);
 
 	__v4l2_ctrl_modify_range(ctrl, ctrl->minimum, max, ctrl->step, max);
 }
@@ -568,10 +607,10 @@ static int smiapp_init_controls(struct smiapp_sensor *sensor)
 	sensor->analog_gain = v4l2_ctrl_new_std(
 		&sensor->pixel_array->ctrl_handler, &smiapp_ctrl_ops,
 		V4L2_CID_ANALOGUE_GAIN,
-		sensor->limits[SMIAPP_LIMIT_ANALOGUE_GAIN_CODE_MIN],
-		sensor->limits[SMIAPP_LIMIT_ANALOGUE_GAIN_CODE_MAX],
-		max(sensor->limits[SMIAPP_LIMIT_ANALOGUE_GAIN_CODE_STEP], 1U),
-		sensor->limits[SMIAPP_LIMIT_ANALOGUE_GAIN_CODE_MIN]);
+		SMIA_LIM(sensor, ANALOGUE_GAIN_CODE_MIN),
+		SMIA_LIM(sensor, ANALOGUE_GAIN_CODE_MAX),
+		max(SMIA_LIM(sensor, ANALOGUE_GAIN_CODE_STEP), 1U),
+		SMIA_LIM(sensor, ANALOGUE_GAIN_CODE_MIN));
 
 	/* Exposure limits will be updated soon, use just something here. */
 	sensor->exposure = v4l2_ctrl_new_std(
@@ -677,45 +716,6 @@ static void smiapp_free_controls(struct smiapp_sensor *sensor)
 		v4l2_ctrl_handler_free(&sensor->ssds[i].ctrl_handler);
 }
 
-static int smiapp_get_limits(struct smiapp_sensor *sensor, int const *limit,
-			     unsigned int n)
-{
-	struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
-	unsigned int i;
-	u32 val;
-	int rval;
-
-	for (i = 0; i < n; i++) {
-		rval = smiapp_read(
-			sensor, smiapp_reg_limits[limit[i]].addr, &val);
-		if (rval)
-			return rval;
-		sensor->limits[limit[i]] = val;
-		dev_dbg(&client->dev, "0x%8.8x \"%s\" = %u, 0x%x\n",
-			smiapp_reg_limits[limit[i]].addr,
-			smiapp_reg_limits[limit[i]].what, val, val);
-	}
-
-	return 0;
-}
-
-static int smiapp_get_all_limits(struct smiapp_sensor *sensor)
-{
-	unsigned int i;
-	int rval;
-
-	for (i = 0; i < SMIAPP_LIMIT_LAST; i++) {
-		rval = smiapp_get_limits(sensor, &i, 1);
-		if (rval < 0)
-			return rval;
-	}
-
-	if (sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN] == 0)
-		smiapp_replace_limit(sensor, SMIAPP_LIMIT_SCALER_N_MIN, 16);
-
-	return 0;
-}
-
 static int smiapp_get_mbus_formats(struct smiapp_sensor *sensor)
 {
 	struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
@@ -869,21 +869,21 @@ static void smiapp_update_blanking(struct smiapp_sensor *sensor)
 	int min, max;
 
 	if (sensor->binning_vertical > 1 || sensor->binning_horizontal > 1) {
-		min_fll = sensor->limits[SMIAPP_LIMIT_MIN_FRAME_LENGTH_LINES_BIN];
-		max_fll = sensor->limits[SMIAPP_LIMIT_MAX_FRAME_LENGTH_LINES_BIN];
-		min_llp = sensor->limits[SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK_BIN];
-		max_llp = sensor->limits[SMIAPP_LIMIT_MAX_LINE_LENGTH_PCK_BIN];
-		min_lbp = sensor->limits[SMIAPP_LIMIT_MIN_LINE_BLANKING_PCK_BIN];
+		min_fll = SMIA_LIM(sensor, MIN_FRAME_LENGTH_LINES_BIN);
+		max_fll = SMIA_LIM(sensor, MAX_FRAME_LENGTH_LINES_BIN);
+		min_llp = SMIA_LIM(sensor, MIN_LINE_LENGTH_PCK_BIN);
+		max_llp = SMIA_LIM(sensor, MAX_LINE_LENGTH_PCK_BIN);
+		min_lbp = SMIA_LIM(sensor, MIN_LINE_BLANKING_PCK_BIN);
 	} else {
-		min_fll = sensor->limits[SMIAPP_LIMIT_MIN_FRAME_LENGTH_LINES];
-		max_fll = sensor->limits[SMIAPP_LIMIT_MAX_FRAME_LENGTH_LINES];
-		min_llp = sensor->limits[SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK];
-		max_llp = sensor->limits[SMIAPP_LIMIT_MAX_LINE_LENGTH_PCK];
-		min_lbp = sensor->limits[SMIAPP_LIMIT_MIN_LINE_BLANKING_PCK];
+		min_fll = SMIA_LIM(sensor, MIN_FRAME_LENGTH_LINES);
+		max_fll = SMIA_LIM(sensor, MAX_FRAME_LENGTH_LINES);
+		min_llp = SMIA_LIM(sensor, MIN_LINE_LENGTH_PCK);
+		max_llp = SMIA_LIM(sensor, MAX_LINE_LENGTH_PCK);
+		min_lbp = SMIA_LIM(sensor, MIN_LINE_BLANKING_PCK);
 	}
 
 	min = max_t(int,
-		    sensor->limits[SMIAPP_LIMIT_MIN_FRAME_BLANKING_LINES],
+		    SMIA_LIM(sensor, MIN_FRAME_BLANKING_LINES),
 		    min_fll -
 		    sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].height);
 	max = max_fll -	sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].height;
@@ -961,7 +961,7 @@ static int smiapp_read_nvm_page(struct smiapp_sensor *sensor, u32 p, u8 *nvm,
 		return -ENODATA;
 	}
 
-	if (sensor->limits[SMIAPP_LIMIT_DATA_TRANSFER_IF_CAPABILITY] &
+	if (SMIA_LIM(sensor, DATA_TRANSFER_IF_CAPABILITY) &
 	    SMIAPP_DATA_TRANSFER_IF_CAPABILITY_POLL) {
 		for (i = 1000; i > 0; i--) {
 			if (s & SMIAPP_DATA_TRANSFER_IF_1_STATUS_RD_READY)
@@ -1416,7 +1416,7 @@ static int smiapp_start_streaming(struct smiapp_sensor *sensor)
 	 */
 
 	/* Digital crop */
-	if (sensor->limits[SMIAPP_LIMIT_DIGITAL_CROP_CAPABILITY]
+	if (SMIA_LIM(sensor, DIGITAL_CROP_CAPABILITY)
 	    == SMIAPP_DIGITAL_CROP_CAPABILITY_INPUT_CROP) {
 		rval = smiapp_write(
 			sensor, SMIAPP_REG_U16_DIGITAL_CROP_X_OFFSET,
@@ -1444,7 +1444,7 @@ static int smiapp_start_streaming(struct smiapp_sensor *sensor)
 	}
 
 	/* Scaling */
-	if (sensor->limits[SMIAPP_LIMIT_SCALING_CAPABILITY]
+	if (SMIA_LIM(sensor, SCALING_CAPABILITY)
 	    != SMIAPP_SCALING_CAPABILITY_NONE) {
 		rval = smiapp_write(sensor, SMIAPP_REG_U16_SCALING_MODE,
 				    sensor->scaling_mode);
@@ -1467,7 +1467,7 @@ static int smiapp_start_streaming(struct smiapp_sensor *sensor)
 	if (rval < 0)
 		goto out;
 
-	if ((sensor->limits[SMIAPP_LIMIT_FLASH_MODE_CAPABILITY] &
+	if ((SMIA_LIM(sensor, FLASH_MODE_CAPABILITY) &
 	     (SMIAPP_FLASH_MODE_CAPABILITY_SINGLE_STROBE |
 	      SMIAPP_FLASH_MODE_CAPABILITY_MULTIPLE_STROBE)) &&
 	    sensor->hwcfg->strobe_setup != NULL &&
@@ -1715,8 +1715,7 @@ static void smiapp_propagate(struct v4l2_subdev *subdev,
 		if (which == V4L2_SUBDEV_FORMAT_ACTIVE) {
 			if (ssd == sensor->scaler) {
 				sensor->scale_m =
-					sensor->limits[
-						SMIAPP_LIMIT_SCALER_N_MIN];
+					SMIA_LIM(sensor, SCALER_N_MIN);
 				sensor->scaling_mode =
 					SMIAPP_SCALING_MODE_NONE;
 			} else if (ssd == sensor->binner) {
@@ -1828,12 +1827,12 @@ static int smiapp_set_format(struct v4l2_subdev *subdev,
 
 	fmt->format.width =
 		clamp(fmt->format.width,
-		      sensor->limits[SMIAPP_LIMIT_MIN_X_OUTPUT_SIZE],
-		      sensor->limits[SMIAPP_LIMIT_MAX_X_OUTPUT_SIZE]);
+		      SMIA_LIM(sensor, MIN_X_OUTPUT_SIZE),
+		      SMIA_LIM(sensor, MAX_X_OUTPUT_SIZE));
 	fmt->format.height =
 		clamp(fmt->format.height,
-		      sensor->limits[SMIAPP_LIMIT_MIN_Y_OUTPUT_SIZE],
-		      sensor->limits[SMIAPP_LIMIT_MAX_Y_OUTPUT_SIZE]);
+		      SMIA_LIM(sensor, MIN_Y_OUTPUT_SIZE),
+		      SMIA_LIM(sensor, MAX_Y_OUTPUT_SIZE));
 
 	smiapp_get_crop_compose(subdev, cfg, crops, NULL, fmt->which);
 
@@ -1886,7 +1885,7 @@ static int scaling_goodness(struct v4l2_subdev *subdev, int w, int ask_w,
 	val -= abs(w - ask_w);
 	val -= abs(h - ask_h);
 
-	if (w < sensor->limits[SMIAPP_LIMIT_MIN_X_OUTPUT_SIZE])
+	if (w < SMIA_LIM(sensor, MIN_X_OUTPUT_SIZE))
 		val -= SCALING_GOODNESS_EXTREME;
 
 	dev_dbg(&client->dev, "w %d ask_w %d h %d ask_h %d goodness %d\n",
@@ -1952,7 +1951,7 @@ static void smiapp_set_compose_scaler(struct v4l2_subdev *subdev,
 	struct i2c_client *client = v4l2_get_subdevdata(subdev);
 	struct smiapp_sensor *sensor = to_smiapp_sensor(subdev);
 	u32 min, max, a, b, max_m;
-	u32 scale_m = sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN];
+	u32 scale_m = SMIA_LIM(sensor, SCALER_N_MIN);
 	int mode = SMIAPP_SCALING_MODE_HORIZONTAL;
 	u32 try[4];
 	u32 ntry = 0;
@@ -1965,19 +1964,19 @@ static void smiapp_set_compose_scaler(struct v4l2_subdev *subdev,
 			      crops[SMIAPP_PAD_SINK]->height);
 
 	a = crops[SMIAPP_PAD_SINK]->width
-		* sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN] / sel->r.width;
+		* SMIA_LIM(sensor, SCALER_N_MIN) / sel->r.width;
 	b = crops[SMIAPP_PAD_SINK]->height
-		* sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN] / sel->r.height;
+		* SMIA_LIM(sensor, SCALER_N_MIN) / sel->r.height;
 	max_m = crops[SMIAPP_PAD_SINK]->width
-		* sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN]
-		/ sensor->limits[SMIAPP_LIMIT_MIN_X_OUTPUT_SIZE];
+		* SMIA_LIM(sensor, SCALER_N_MIN)
+		/ SMIA_LIM(sensor, MIN_X_OUTPUT_SIZE);
 
-	a = clamp(a, sensor->limits[SMIAPP_LIMIT_SCALER_M_MIN],
-		  sensor->limits[SMIAPP_LIMIT_SCALER_M_MAX]);
-	b = clamp(b, sensor->limits[SMIAPP_LIMIT_SCALER_M_MIN],
-		  sensor->limits[SMIAPP_LIMIT_SCALER_M_MAX]);
-	max_m = clamp(max_m, sensor->limits[SMIAPP_LIMIT_SCALER_M_MIN],
-		      sensor->limits[SMIAPP_LIMIT_SCALER_M_MAX]);
+	a = clamp(a, SMIA_LIM(sensor, SCALER_M_MIN),
+		  SMIA_LIM(sensor, SCALER_M_MAX));
+	b = clamp(b, SMIA_LIM(sensor, SCALER_M_MIN),
+		  SMIA_LIM(sensor, SCALER_M_MAX));
+	max_m = clamp(max_m, SMIA_LIM(sensor, SCALER_M_MIN),
+		      SMIA_LIM(sensor, SCALER_M_MAX));
 
 	dev_dbg(&client->dev, "scaling: a %d b %d max_m %d\n", a, b, max_m);
 
@@ -2004,7 +2003,7 @@ static void smiapp_set_compose_scaler(struct v4l2_subdev *subdev,
 			subdev,
 			crops[SMIAPP_PAD_SINK]->width
 			/ try[i]
-			* sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN],
+			* SMIA_LIM(sensor, SCALER_N_MIN),
 			sel->r.width,
 			crops[SMIAPP_PAD_SINK]->height,
 			sel->r.height,
@@ -2018,18 +2017,18 @@ static void smiapp_set_compose_scaler(struct v4l2_subdev *subdev,
 			best = this;
 		}
 
-		if (sensor->limits[SMIAPP_LIMIT_SCALING_CAPABILITY]
+		if (SMIA_LIM(sensor, SCALING_CAPABILITY)
 		    == SMIAPP_SCALING_CAPABILITY_HORIZONTAL)
 			continue;
 
 		this = scaling_goodness(
 			subdev, crops[SMIAPP_PAD_SINK]->width
 			/ try[i]
-			* sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN],
+			* SMIA_LIM(sensor, SCALER_N_MIN),
 			sel->r.width,
 			crops[SMIAPP_PAD_SINK]->height
 			/ try[i]
-			* sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN],
+			* SMIA_LIM(sensor, SCALER_N_MIN),
 			sel->r.height,
 			sel->flags);
 
@@ -2043,12 +2042,12 @@ static void smiapp_set_compose_scaler(struct v4l2_subdev *subdev,
 	sel->r.width =
 		(crops[SMIAPP_PAD_SINK]->width
 		 / scale_m
-		 * sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN]) & ~1;
+		 * SMIA_LIM(sensor, SCALER_N_MIN)) & ~1;
 	if (mode == SMIAPP_SCALING_MODE_BOTH)
 		sel->r.height =
 			(crops[SMIAPP_PAD_SINK]->height
 			 / scale_m
-			 * sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN])
+			 * SMIA_LIM(sensor, SCALER_N_MIN))
 			& ~1;
 	else
 		sel->r.height = crops[SMIAPP_PAD_SINK]->height;
@@ -2104,7 +2103,7 @@ static int __smiapp_sel_supported(struct v4l2_subdev *subdev,
 			return 0;
 		if (ssd == sensor->scaler
 		    && sel->pad == SMIAPP_PAD_SINK
-		    && sensor->limits[SMIAPP_LIMIT_DIGITAL_CROP_CAPABILITY]
+		    && SMIA_LIM(sensor, DIGITAL_CROP_CAPABILITY)
 		    == SMIAPP_DIGITAL_CROP_CAPABILITY_INPUT_CROP)
 			return 0;
 		return -EINVAL;
@@ -2120,7 +2119,7 @@ static int __smiapp_sel_supported(struct v4l2_subdev *subdev,
 		if (ssd == sensor->binner)
 			return 0;
 		if (ssd == sensor->scaler
-		    && sensor->limits[SMIAPP_LIMIT_SCALING_CAPABILITY]
+		    && SMIA_LIM(sensor, SCALING_CAPABILITY)
 		    != SMIAPP_SCALING_CAPABILITY_NONE)
 			return 0;
 		/* Fall through */
@@ -2185,8 +2184,8 @@ static void smiapp_get_native_size(struct smiapp_subdev *ssd,
 {
 	r->top = 0;
 	r->left = 0;
-	r->width = ssd->sensor->limits[SMIAPP_LIMIT_X_ADDR_MAX] + 1;
-	r->height = ssd->sensor->limits[SMIAPP_LIMIT_Y_ADDR_MAX] + 1;
+	r->width = SMIA_LIM(ssd->sensor, X_ADDR_MAX) + 1;
+	r->height = SMIA_LIM(ssd->sensor, Y_ADDR_MAX) + 1;
 }
 
 static int __smiapp_get_selection(struct v4l2_subdev *subdev,
@@ -2271,10 +2270,10 @@ static int smiapp_set_selection(struct v4l2_subdev *subdev,
 	sel->r.height =	SMIAPP_ALIGN_DIM(sel->r.height, sel->flags);
 
 	sel->r.width = max_t(unsigned int,
-			     sensor->limits[SMIAPP_LIMIT_MIN_X_OUTPUT_SIZE],
+			     SMIA_LIM(sensor, MIN_X_OUTPUT_SIZE),
 			     sel->r.width);
 	sel->r.height = max_t(unsigned int,
-			      sensor->limits[SMIAPP_LIMIT_MIN_Y_OUTPUT_SIZE],
+			      SMIA_LIM(sensor, MIN_Y_OUTPUT_SIZE),
 			      sel->r.height);
 
 	switch (sel->target) {
@@ -2927,7 +2926,7 @@ static int smiapp_probe(struct i2c_client *client)
 		goto out_power_off;
 	}
 
-	rval = smiapp_get_all_limits(sensor);
+	rval = smiapp_read_all_smia_limits(sensor);
 	if (rval) {
 		rval = -ENODEV;
 		goto out_power_off;
@@ -2963,7 +2962,7 @@ static int smiapp_probe(struct i2c_client *client)
 		goto out_power_off;
 	}
 
-	if (sensor->limits[SMIAPP_LIMIT_BINNING_CAPABILITY]) {
+	if (SMIA_LIM(sensor, BINNING_CAPABILITY)) {
 		u32 val;
 
 		rval = smiapp_read(sensor,
@@ -3000,7 +2999,7 @@ static int smiapp_probe(struct i2c_client *client)
 	}
 
 	if (sensor->minfo.smiapp_version &&
-	    sensor->limits[SMIAPP_LIMIT_DATA_TRANSFER_IF_CAPABILITY] &
+	    SMIA_LIM(sensor, DATA_TRANSFER_IF_CAPABILITY) &
 	    SMIAPP_DATA_TRANSFER_IF_CAPABILITY_SUPPORTED) {
 		if (device_create_file(&client->dev, &dev_attr_nvm) != 0) {
 			dev_err(&client->dev, "sysfs nvm entry failed\n");
@@ -3010,21 +3009,21 @@ static int smiapp_probe(struct i2c_client *client)
 	}
 
 	/* We consider this as profile 0 sensor if any of these are zero. */
-	if (!sensor->limits[SMIAPP_LIMIT_MIN_OP_SYS_CLK_DIV] ||
-	    !sensor->limits[SMIAPP_LIMIT_MAX_OP_SYS_CLK_DIV] ||
-	    !sensor->limits[SMIAPP_LIMIT_MIN_OP_PIX_CLK_DIV] ||
-	    !sensor->limits[SMIAPP_LIMIT_MAX_OP_PIX_CLK_DIV]) {
+	if (!SMIA_LIM(sensor, MIN_OP_SYS_CLK_DIV) ||
+	    !SMIA_LIM(sensor, MAX_OP_SYS_CLK_DIV) ||
+	    !SMIA_LIM(sensor, MIN_OP_PIX_CLK_DIV) ||
+	    !SMIA_LIM(sensor, MAX_OP_PIX_CLK_DIV)) {
 		sensor->minfo.smiapp_profile = SMIAPP_PROFILE_0;
-	} else if (sensor->limits[SMIAPP_LIMIT_SCALING_CAPABILITY]
+	} else if (SMIA_LIM(sensor, SCALING_CAPABILITY)
 		   != SMIAPP_SCALING_CAPABILITY_NONE) {
-		if (sensor->limits[SMIAPP_LIMIT_SCALING_CAPABILITY]
+		if (SMIA_LIM(sensor, SCALING_CAPABILITY)
 		    == SMIAPP_SCALING_CAPABILITY_HORIZONTAL)
 			sensor->minfo.smiapp_profile = SMIAPP_PROFILE_1;
 		else
 			sensor->minfo.smiapp_profile = SMIAPP_PROFILE_2;
 		sensor->scaler = &sensor->ssds[sensor->ssds_used];
 		sensor->ssds_used++;
-	} else if (sensor->limits[SMIAPP_LIMIT_DIGITAL_CROP_CAPABILITY]
+	} else if (SMIA_LIM(sensor, DIGITAL_CROP_CAPABILITY)
 		   == SMIAPP_DIGITAL_CROP_CAPABILITY_INPUT_CROP) {
 		sensor->scaler = &sensor->ssds[sensor->ssds_used];
 		sensor->ssds_used++;
@@ -3034,13 +3033,13 @@ static int smiapp_probe(struct i2c_client *client)
 	sensor->pixel_array = &sensor->ssds[sensor->ssds_used];
 	sensor->ssds_used++;
 
-	sensor->scale_m = sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN];
+	sensor->scale_m = SMIA_LIM(sensor, SCALER_N_MIN);
 
 	/* prepare PLL configuration input values */
 	sensor->pll.bus_type = SMIAPP_PLL_BUS_TYPE_CSI2;
 	sensor->pll.csi2.lanes = sensor->hwcfg->lanes;
 	sensor->pll.ext_clk_freq_hz = sensor->hwcfg->ext_clk;
-	sensor->pll.scale_n = sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN];
+	sensor->pll.scale_n = SMIA_LIM(sensor, SCALER_N_MIN);
 	/* Profile 0 sensors have no separate OP clock branch. */
 	if (sensor->minfo.smiapp_profile == SMIAPP_PROFILE_0)
 		sensor->pll.flags |= SMIAPP_PLL_FLAG_NO_OP_CLOCKS;
diff --git a/drivers/media/i2c/smiapp/smiapp-reg.h b/drivers/media/i2c/smiapp/smiapp-reg.h
index 43505cd0616e..e6f96309786f 100644
--- a/drivers/media/i2c/smiapp/smiapp-reg.h
+++ b/drivers/media/i2c/smiapp/smiapp-reg.h
@@ -35,6 +35,10 @@
 #define SMIAPP_FLASH_MODE_CAPABILITY_SINGLE_STROBE	BIT(0)
 #define SMIAPP_FLASH_MODE_CAPABILITY_MULTIPLE_STROBE	BIT(1)
 
+#define SMIAPP_CSI_SIGNALLING_MODE_CCP2_DATA_CLOCK	0
+#define SMIAPP_CSI_SIGNALLING_MODE_CCP2_DATA_STROBE	1
+#define SMIAPP_CSI_SIGNALLING_MODE_CSI2			2
+
 #define SMIAPP_DPHY_CTRL_AUTOMATIC			0
 /* DPHY control based on REQUESTED_LINK_BIT_RATE_MBPS */
 #define SMIAPP_DPHY_CTRL_UI				1
diff --git a/drivers/media/i2c/smiapp/smiapp-regs.c b/drivers/media/i2c/smiapp/smiapp-regs.c
index ce8c1d47fbf0..1b58b7c6c839 100644
--- a/drivers/media/i2c/smiapp/smiapp-regs.c
+++ b/drivers/media/i2c/smiapp/smiapp-regs.c
@@ -8,6 +8,8 @@
  * Contact: Sakari Ailus <sakari.ailus@iki.fi>
  */
 
+#include <asm/unaligned.h>
+
 #include <linux/delay.h>
 #include <linux/i2c.h>
 
@@ -69,18 +71,19 @@ static int ____smiapp_read(struct smiapp_sensor *sensor, u16 reg,
 {
 	struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
 	struct i2c_msg msg;
-	unsigned char data[4];
-	u16 offset = reg;
+	unsigned char data_buf[sizeof(u32)] = { 0 };
+	unsigned char offset_buf[sizeof(u16)];
 	int r;
 
+	if (len > sizeof(data_buf))
+		return -EINVAL;
+
 	msg.addr = client->addr;
 	msg.flags = 0;
-	msg.len = 2;
-	msg.buf = data;
+	msg.len = sizeof(offset_buf);
+	msg.buf = offset_buf;
+	put_unaligned_be16(reg, offset_buf);
 
-	/* high byte goes out first */
-	data[0] = (u8) (offset >> 8);
-	data[1] = (u8) offset;
 	r = i2c_transfer(client->adapter, &msg, 1);
 	if (r != 1) {
 		if (r >= 0)
@@ -90,6 +93,8 @@ static int ____smiapp_read(struct smiapp_sensor *sensor, u16 reg,
 
 	msg.len = len;
 	msg.flags = I2C_M_RD;
+	msg.buf = &data_buf[sizeof(data_buf) - len];
+
 	r = i2c_transfer(client->adapter, &msg, 1);
 	if (r != 1) {
 		if (r >= 0)
@@ -97,27 +102,12 @@ static int ____smiapp_read(struct smiapp_sensor *sensor, u16 reg,
 		goto err;
 	}
 
-	*val = 0;
-	/* high byte comes first */
-	switch (len) {
-	case SMIAPP_REG_32BIT:
-		*val = (data[0] << 24) + (data[1] << 16) + (data[2] << 8) +
-			data[3];
-		break;
-	case SMIAPP_REG_16BIT:
-		*val = (data[0] << 8) + data[1];
-		break;
-	case SMIAPP_REG_8BIT:
-		*val = data[0];
-		break;
-	default:
-		BUG();
-	}
+	*val = get_unaligned_be32(data_buf);
 
 	return 0;
 
 err:
-	dev_err(&client->dev, "read from offset 0x%x error %d\n", offset, r);
+	dev_err(&client->dev, "read from offset 0x%x error %d\n", reg, r);
 
 	return r;
 }
@@ -158,7 +148,7 @@ static int __smiapp_read(struct smiapp_sensor *sensor, u32 reg, u32 *val,
 	    && len != SMIAPP_REG_32BIT)
 		return -EINVAL;
 
-	if (len == SMIAPP_REG_8BIT || !only8)
+	if (!only8)
 		rval = ____smiapp_read(sensor, SMIAPP_REG_ADDR(reg), len, val);
 	else
 		rval = ____smiapp_read_8only(sensor, SMIAPP_REG_ADDR(reg), len,
@@ -214,13 +204,10 @@ int smiapp_write_no_quirk(struct smiapp_sensor *sensor, u32 reg, u32 val)
 	struct i2c_msg msg;
 	unsigned char data[6];
 	unsigned int retries;
-	u8 flags = SMIAPP_REG_FLAGS(reg);
 	u8 len = SMIAPP_REG_WIDTH(reg);
-	u16 offset = SMIAPP_REG_ADDR(reg);
 	int r;
 
-	if ((len != SMIAPP_REG_8BIT && len != SMIAPP_REG_16BIT &&
-	     len != SMIAPP_REG_32BIT) || flags)
+	if (len > sizeof(data) - 2)
 		return -EINVAL;
 
 	msg.addr = client->addr;
@@ -228,27 +215,8 @@ int smiapp_write_no_quirk(struct smiapp_sensor *sensor, u32 reg, u32 val)
 	msg.len = 2 + len;
 	msg.buf = data;
 
-	/* high byte goes out first */
-	data[0] = (u8) (reg >> 8);
-	data[1] = (u8) (reg & 0xff);
-
-	switch (len) {
-	case SMIAPP_REG_8BIT:
-		data[2] = val;
-		break;
-	case SMIAPP_REG_16BIT:
-		data[2] = val >> 8;
-		data[3] = val;
-		break;
-	case SMIAPP_REG_32BIT:
-		data[2] = val >> 24;
-		data[3] = val >> 16;
-		data[4] = val >> 8;
-		data[5] = val;
-		break;
-	default:
-		BUG();
-	}
+	put_unaligned_be16(SMIAPP_REG_ADDR(reg), data);
+	put_unaligned_be32(val << (8 * (sizeof(val) - len)), data + 2);
 
 	for (retries = 0; retries < 5; retries++) {
 		/*
@@ -269,7 +237,8 @@ int smiapp_write_no_quirk(struct smiapp_sensor *sensor, u32 reg, u32 val)
 	}
 
 	dev_err(&client->dev,
-		"wrote 0x%x to offset 0x%x error %d\n", val, offset, r);
+		"wrote 0x%x to offset 0x%x error %d\n", val,
+		SMIAPP_REG_ADDR(reg), r);
 
 	return r;
 }
diff --git a/drivers/media/i2c/smiapp/smiapp.h b/drivers/media/i2c/smiapp/smiapp.h
index 4837d80dc453..6f469934f9e3 100644
--- a/drivers/media/i2c/smiapp/smiapp.h
+++ b/drivers/media/i2c/smiapp/smiapp.h
@@ -14,7 +14,6 @@
 #include <linux/mutex.h>
 #include <media/v4l2-ctrls.h>
 #include <media/v4l2-subdev.h>
-#include <media/i2c/smiapp.h>
 
 #include "smiapp-pll.h"
 #include "smiapp-reg.h"
@@ -42,6 +41,49 @@
 
 #define SMIAPP_COLOUR_COMPONENTS	4
 
+#define SMIAPP_NAME		"smiapp"
+
+#define SMIAPP_DFL_I2C_ADDR	(0x20 >> 1) /* Default I2C Address */
+#define SMIAPP_ALT_I2C_ADDR	(0x6e >> 1) /* Alternate I2C Address */
+
+/*
+ * Sometimes due to board layout considerations the camera module can be
+ * mounted rotated. The typical rotation used is 180 degrees which can be
+ * corrected by giving a default H-FLIP and V-FLIP in the sensor readout.
+ * FIXME: rotation also changes the bayer pattern.
+ */
+enum smiapp_module_board_orient {
+	SMIAPP_MODULE_BOARD_ORIENT_0 = 0,
+	SMIAPP_MODULE_BOARD_ORIENT_180,
+};
+
+struct smiapp_flash_strobe_parms {
+	u8 mode;
+	u32 strobe_width_high_us;
+	u16 strobe_delay;
+	u16 stobe_start_point;
+	u8 trigger;
+};
+
+struct smiapp_hwconfig {
+	/*
+	 * Change the cci address if i2c_addr_alt is set.
+	 * Both default and alternate cci addr need to be present
+	 */
+	unsigned short i2c_addr_dfl;	/* Default i2c addr */
+	unsigned short i2c_addr_alt;	/* Alternate i2c addr */
+
+	uint32_t ext_clk;		/* sensor external clk */
+
+	unsigned int lanes;		/* Number of CSI-2 lanes */
+	uint32_t csi_signalling_mode;	/* SMIAPP_CSI_SIGNALLING_MODE_* */
+	uint64_t *op_sys_clock;
+
+	enum smiapp_module_board_orient module_board_orient;
+
+	struct smiapp_flash_strobe_parms *strobe_setup;
+};
+
 #include "smiapp-limits.h"
 
 struct smiapp_quirk;