openwrt/target/linux/at91/patches-5.10/160-media-atmel-atmel-isc-specialize-max-width-and-max-h.patch

From b51819e17260af2ecc152b7dcd61e63bcaa35edf Mon Sep 17 00:00:00 2001
From: Eugen Hristev <[email protected]>
Date: Tue, 13 Apr 2021 12:57:02 +0200
Subject: [PATCH 160/247] media: atmel: atmel-isc: specialize max width and max
 height

Move the max width and max height constants to the product specific driver
and have them in the device struct.

Signed-off-by: Eugen Hristev <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
---
 drivers/media/platform/atmel/atmel-isc-base.c | 28 +++++++++----------
 drivers/media/platform/atmel/atmel-isc.h      |  9 ++++--
 .../media/platform/atmel/atmel-sama5d2-isc.c  |  7 +++--
 3 files changed, 25 insertions(+), 19 deletions(-)

--- a/drivers/media/platform/atmel/atmel-isc-base.c
+++ b/drivers/media/platform/atmel/atmel-isc-base.c
@@ -1216,8 +1216,8 @@ static void isc_try_fse(struct isc_devic
 	 * just use the maximum ISC can receive.
 	 */
 	if (ret) {
-		pad_cfg->try_crop.width = ISC_MAX_SUPPORT_WIDTH;
-		pad_cfg->try_crop.height = ISC_MAX_SUPPORT_HEIGHT;
+		pad_cfg->try_crop.width = isc->max_width;
+		pad_cfg->try_crop.height = isc->max_height;
 	} else {
 		pad_cfg->try_crop.width = fse.max_width;
 		pad_cfg->try_crop.height = fse.max_height;
@@ -1294,10 +1294,10 @@ static int isc_try_fmt(struct isc_device
 	isc->try_config.sd_format = sd_fmt;
 
 	/* Limit to Atmel ISC hardware capabilities */
-	if (pixfmt->width > ISC_MAX_SUPPORT_WIDTH)
-		pixfmt->width = ISC_MAX_SUPPORT_WIDTH;
-	if (pixfmt->height > ISC_MAX_SUPPORT_HEIGHT)
-		pixfmt->height = ISC_MAX_SUPPORT_HEIGHT;
+	if (pixfmt->width > isc->max_width)
+		pixfmt->width = isc->max_width;
+	if (pixfmt->height > isc->max_height)
+		pixfmt->height = isc->max_height;
 
 	/*
 	 * The mbus format is the one the subdev outputs.
@@ -1339,10 +1339,10 @@ static int isc_try_fmt(struct isc_device
 	v4l2_fill_pix_format(pixfmt, &format.format);
 
 	/* Limit to Atmel ISC hardware capabilities */
-	if (pixfmt->width > ISC_MAX_SUPPORT_WIDTH)
-		pixfmt->width = ISC_MAX_SUPPORT_WIDTH;
-	if (pixfmt->height > ISC_MAX_SUPPORT_HEIGHT)
-		pixfmt->height = ISC_MAX_SUPPORT_HEIGHT;
+	if (pixfmt->width > isc->max_width)
+		pixfmt->width = isc->max_width;
+	if (pixfmt->height > isc->max_height)
+		pixfmt->height = isc->max_height;
 
 	pixfmt->field = V4L2_FIELD_NONE;
 	pixfmt->bytesperline = (pixfmt->width * isc->try_config.bpp) >> 3;
@@ -1380,10 +1380,10 @@ static int isc_set_fmt(struct isc_device
 		return ret;
 
 	/* Limit to Atmel ISC hardware capabilities */
-	if (pixfmt->width > ISC_MAX_SUPPORT_WIDTH)
-		pixfmt->width = ISC_MAX_SUPPORT_WIDTH;
-	if (pixfmt->height > ISC_MAX_SUPPORT_HEIGHT)
-		pixfmt->height = ISC_MAX_SUPPORT_HEIGHT;
+	if (f->fmt.pix.width > isc->max_width)
+		f->fmt.pix.width = isc->max_width;
+	if (f->fmt.pix.height > isc->max_height)
+		f->fmt.pix.height = isc->max_height;
 
 	isc->fmt = *f;
 
--- a/drivers/media/platform/atmel/atmel-isc.h
+++ b/drivers/media/platform/atmel/atmel-isc.h
@@ -10,9 +10,6 @@
  */
 #ifndef _ATMEL_ISC_H_
 
-#define ISC_MAX_SUPPORT_WIDTH   2592
-#define ISC_MAX_SUPPORT_HEIGHT  1944
-
 #define ISC_CLK_MAX_DIV		255
 
 enum isc_clk_id {
@@ -190,6 +187,9 @@ struct isc_ctrls {
  * @gamma_table:	pointer to the table with gamma values, has
  *			gamma_max sets of GAMMA_ENTRIES entries each
  * @gamma_max:		maximum number of sets of inside the gamma_table
+ *
+ * @max_width:		maximum frame width, dependent on the internal RAM
+ * @max_height:		maximum frame height, dependent on the internal RAM
  */
 struct isc_device {
 	struct regmap		*regmap;
@@ -253,6 +253,9 @@ struct isc_device {
 	/* pointer to the defined gamma table */
 	const u32	(*gamma_table)[GAMMA_ENTRIES];
 	u32		gamma_max;
+
+	u32		max_width;
+	u32		max_height;
 };
 
 extern struct isc_format formats_list[];
--- a/drivers/media/platform/atmel/atmel-sama5d2-isc.c
+++ b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
@@ -49,8 +49,8 @@
 #include "atmel-isc-regs.h"
 #include "atmel-isc.h"
 
-#define ISC_MAX_SUPPORT_WIDTH   2592
-#define ISC_MAX_SUPPORT_HEIGHT  1944
+#define ISC_SAMA5D2_MAX_SUPPORT_WIDTH   2592
+#define ISC_SAMA5D2_MAX_SUPPORT_HEIGHT  1944
 
 #define ISC_CLK_MAX_DIV		255
 
@@ -216,6 +216,9 @@ static int atmel_isc_probe(struct platfo
 	isc->gamma_table = isc_sama5d2_gamma_table;
 	isc->gamma_max = 2;
 
+	isc->max_width = ISC_SAMA5D2_MAX_SUPPORT_WIDTH;
+	isc->max_height = ISC_SAMA5D2_MAX_SUPPORT_HEIGHT;
+
 	ret = isc_pipeline_init(isc);
 	if (ret)
 		return ret;