[PATCH v4 2/2] media: atomisp: Remove unused DPCM helper functions and declarations

[Debjeet Banerjee <debjeetbanerjee48@gmail.com>]

Remove the DPCM-related helper functions and data structures that are no
longer used after simplifying the CSI2 source pad format handling:

- atomisp_subdev_uncompressed_code() function
- atomisp_subdev_is_compressed() function
- atomisp_find_in_fmt_conv_compressed() declaration
- compressed_codes[] array from atomisp_subdev.c

Since the driver does not support DPCM decompression, these functions
were dead code and have been removed to clean up the codebase.

Signed-off-by: Debjeet Banerjee <debjeetbanerjee48@gmail.com>
---
 .../media/atomisp/pci/atomisp_subdev.c        | 33 -------------------
 .../media/atomisp/pci/atomisp_subdev.h        |  3 --
 2 files changed, 36 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/atomisp_subdev.c b/drivers/staging/media/atomisp/pci/atomisp_subdev.c
index 3d56ca83ecb7..ec5d3d7d7700 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_subdev.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_subdev.c
@@ -51,39 +51,6 @@ const struct atomisp_in_fmt_conv atomisp_in_fmt_conv[] = {
 	{}
 };
 
-static const struct {
-	u32 code;
-	u32 compressed;
-} compressed_codes[] = {
-	{ MEDIA_BUS_FMT_SBGGR10_1X10, MEDIA_BUS_FMT_SBGGR10_DPCM8_1X8 },
-	{ MEDIA_BUS_FMT_SGBRG10_1X10, MEDIA_BUS_FMT_SGBRG10_DPCM8_1X8 },
-	{ MEDIA_BUS_FMT_SGRBG10_1X10, MEDIA_BUS_FMT_SGRBG10_DPCM8_1X8 },
-	{ MEDIA_BUS_FMT_SRGGB10_1X10, MEDIA_BUS_FMT_SRGGB10_DPCM8_1X8 },
-};
-
-u32 atomisp_subdev_uncompressed_code(u32 code)
-{
-	unsigned int i;
-
-	for (i = 0; i < ARRAY_SIZE(compressed_codes); i++)
-		if (code == compressed_codes[i].compressed)
-			return compressed_codes[i].code;
-
-	return code;
-}
-
-bool atomisp_subdev_is_compressed(u32 code)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(atomisp_in_fmt_conv) - 1; i++)
-		if (code == atomisp_in_fmt_conv[i].code)
-			return atomisp_in_fmt_conv[i].bpp !=
-			       atomisp_in_fmt_conv[i].depth;
-
-	return false;
-}
-
 const struct atomisp_in_fmt_conv *atomisp_find_in_fmt_conv(u32 code)
 {
 	int i;
diff --git a/drivers/staging/media/atomisp/pci/atomisp_subdev.h b/drivers/staging/media/atomisp/pci/atomisp_subdev.h
index e1d0168cb91d..a8d3ddeda3bf 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_subdev.h
+++ b/drivers/staging/media/atomisp/pci/atomisp_subdev.h
@@ -296,8 +296,6 @@ struct atomisp_sub_device {
 
 extern const struct atomisp_in_fmt_conv atomisp_in_fmt_conv[];
 
-u32 atomisp_subdev_uncompressed_code(u32 code);
-bool atomisp_subdev_is_compressed(u32 code);
 const struct atomisp_in_fmt_conv *atomisp_find_in_fmt_conv(u32 code);
 
 /* ISP2400 */
@@ -309,7 +307,6 @@ const struct atomisp_in_fmt_conv
 *atomisp_find_in_fmt_conv_by_atomisp_in_fmt(enum atomisp_input_format
 	atomisp_in_fmt);
 
-const struct atomisp_in_fmt_conv *atomisp_find_in_fmt_conv_compressed(u32 code);
 bool atomisp_subdev_format_conversion(struct atomisp_sub_device *asd);
 
 /* Get pointer to appropriate format */
-- 
2.53.0