[media] omap3isp: preview: Remove horizontal averager support

The horizontal averager isn't used and will get in the way when
implementing cropping support on the input pad. Remove it, it can be
added back later if needed.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/omap3isp/isppreview.c

@@ -1228,7 +1228,6 @@ static void preview_init_params(struct isp_prev_device *prev)
 	/* Init values */
 	params->contrast = ISPPRV_CONTRAST_DEF * ISPPRV_CONTRAST_UNITS;
 	params->brightness = ISPPRV_BRIGHT_DEF * ISPPRV_BRIGHT_UNITS;
-	params->average = NO_AVE;
 	params->cfa.format = OMAP3ISP_CFAFMT_BAYER;
 	memcpy(params->cfa.table, cfa_coef_table,
 	       sizeof(params->cfa.table));
@@ -1297,7 +1296,6 @@ static void preview_configure(struct isp_prev_device *prev)
 	struct isp_device *isp = to_isp_device(prev);
 	struct v4l2_mbus_framefmt *format;
 	unsigned int max_out_width;
-	unsigned int format_avg;
 
 	preview_setup_hw(prev);
 
@@ -1337,8 +1335,7 @@ static void preview_configure(struct isp_prev_device *prev)
 
 	max_out_width = preview_max_out_width(prev);
 
-	format_avg = fls(DIV_ROUND_UP(format->width, max_out_width) - 1);
-	preview_config_averager(prev, format_avg);
+	preview_config_averager(prev, 0);
 	preview_config_ycpos(prev, format->code);
 }
 
@@ -1642,7 +1639,7 @@ static void preview_try_format(struct isp_prev_device *prev,
 		 */
 		if (prev->input == PREVIEW_INPUT_MEMORY) {
 			fmt->width = clamp_t(u32, fmt->width, PREV_MIN_WIDTH,
-					     max_out_width * 8);
+					     max_out_width);
 			fmt->height = clamp_t(u32, fmt->height, PREV_MIN_HEIGHT,
 					      PREV_MAX_HEIGHT);
 		}
@@ -1689,17 +1686,6 @@ static void preview_try_format(struct isp_prev_device *prev,
 		if (prev->input == PREVIEW_INPUT_CCDC)
 			fmt->width -= 4;
 
-		/* The preview module can output a maximum of 3312 pixels
-		 * horizontally due to fixed memory-line sizes. Compute the
-		 * horizontal averaging factor accordingly. Note that the limit
-		 * applies to the noise filter and CFA interpolation blocks, so
-		 * it doesn't take cropping by further blocks into account.
-		 *
-		 * ES 1.0 hardware revision is limited to 1280 pixels
-		 * horizontally.
-		 */
-		fmt->width >>= fls(DIV_ROUND_UP(fmt->width, max_out_width) - 1);
-
 		/* Assume that all blocks are enabled and crop pixels and lines
 		 * accordingly. See preview_config_input_size() for more
 		 * information.

drivers/media/video/omap3isp/isppreview.h

@@ -45,11 +45,6 @@
 #define ISPPRV_CONTRAST_HIGH		0xFF
 #define ISPPRV_CONTRAST_UNITS		0x1
 
-#define NO_AVE				0x0
-#define AVE_2_PIX			0x1
-#define AVE_4_PIX			0x2
-#define AVE_8_PIX			0x3
-
 /* Features list */
 #define PREV_LUMA_ENHANCE		OMAP3ISP_PREV_LUMAENH
 #define PREV_INVERSE_ALAW		OMAP3ISP_PREV_INVALAW
@@ -106,7 +101,6 @@ enum preview_ycpos_mode {
  * @rgb2ycbcr: RGB to ycbcr parameters.
  * @hmed: Horizontal median filter.
  * @yclimit: YC limits parameters.
- * @average: Downsampling rate for averager.
  * @contrast: Contrast.
  * @brightness: Brightness.
  */
@@ -124,7 +118,6 @@ struct prev_params {
 	struct omap3isp_prev_csc rgb2ycbcr;
 	struct omap3isp_prev_hmed hmed;
 	struct omap3isp_prev_yclimit yclimit;
-	u8 average;
 	u8 contrast;
 	u8 brightness;
 };