target/linux/at91/patches-5.10/177-media-atmel-atmel-isc-create-callback-for-DPC-submod.patch

   1 From d53eb90044c19ba22b51978fcb007d9b5200b83a Mon Sep 17 00:00:00 2001
   2 From: Eugen Hristev <eugen.hristev@microchip.com>
   3 Date: Tue, 13 Apr 2021 12:57:19 +0200
   4 Subject: [PATCH 177/247] media: atmel: atmel-isc: create callback for DPC
   5  submodule product specific
   6
   7 The DPC submodule is a part of the atmel-isc pipeline, and stands for
   8 Defective Pixel Correction. Its purpose is to detect defective pixels and
   9 correct them if possible with the help of adjacent pixels.
  10 Create a product specific callback for initializing the DPC submodule
  11 of the pipeline.
  12 For sama5d2 product, this module does not exist, thus this function is a noop.
  13
  14 [hverkuil: made isc_sama5d2_config_dpc static]
  15
  16 Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
  17 Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
  18 Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
  19 ---
  20  drivers/media/platform/atmel/atmel-isc-base.c    | 1 +
  21  drivers/media/platform/atmel/atmel-isc.h         | 3 +++
  22  drivers/media/platform/atmel/atmel-sama5d2-isc.c | 6 ++++++
  23  3 files changed, 10 insertions(+)
  24
  25 --- a/drivers/media/platform/atmel/atmel-isc-base.c
  26 +++ b/drivers/media/platform/atmel/atmel-isc-base.c
  27 @@ -659,6 +659,7 @@ static void isc_set_pipeline(struct isc_
  28         regmap_bulk_write(regmap, ISC_GAM_GENTRY, gamma, GAMMA_ENTRIES);
  29         regmap_bulk_write(regmap, ISC_GAM_RENTRY, gamma, GAMMA_ENTRIES);
  30
  31 +       isc->config_dpc(isc);
  32         isc->config_csc(isc);
  33         isc->config_cbc(isc);
  34         isc->config_cc(isc);
  35 --- a/drivers/media/platform/atmel/atmel-isc.h
  36 +++ b/drivers/media/platform/atmel/atmel-isc.h
  37 @@ -220,6 +220,8 @@ struct isc_reg_offsets {
  38   * @max_width:         maximum frame width, dependent on the internal RAM
  39   * @max_height:                maximum frame height, dependent on the internal RAM
  40   *
  41 + * @config_dpc:                pointer to a function that initializes product
  42 + *                     specific DPC module
  43   * @config_csc:                pointer to a function that initializes product
  44   *                     specific CSC module
  45   * @config_cbc:                pointer to a function that initializes product
  46 @@ -299,6 +301,7 @@ struct isc_device {
  47         u32             max_height;
  48
  49         struct {
  50 +               void (*config_dpc)(struct isc_device *isc);
  51                 void (*config_csc)(struct isc_device *isc);
  52                 void (*config_cbc)(struct isc_device *isc);
  53                 void (*config_cc)(struct isc_device *isc);
  54 --- a/drivers/media/platform/atmel/atmel-sama5d2-isc.c
  55 +++ b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
  56 @@ -107,6 +107,11 @@ static void isc_sama5d2_config_ctrls(str
  57         v4l2_ctrl_new_std(hdl, ops, V4L2_CID_CONTRAST, -2048, 2047, 1, 256);
  58  }
  59
  60 +static void isc_sama5d2_config_dpc(struct isc_device *isc)
  61 +{
  62 +       /* This module is not present on sama5d2 pipeline */
  63 +}
  64 +
  65  /* Gamma table with gamma 1/2.2 */
  66  static const u32 isc_sama5d2_gamma_table[][GAMMA_ENTRIES] = {
  67         /* 0 --> gamma 1/1.8 */
  68 @@ -273,6 +278,7 @@ static int atmel_isc_probe(struct platfo
  69         isc->max_width = ISC_SAMA5D2_MAX_SUPPORT_WIDTH;
  70         isc->max_height = ISC_SAMA5D2_MAX_SUPPORT_HEIGHT;
  71
  72 +       isc->config_dpc = isc_sama5d2_config_dpc;
  73         isc->config_csc = isc_sama5d2_config_csc;
  74         isc->config_cbc = isc_sama5d2_config_cbc;
  75         isc->config_cc = isc_sama5d2_config_cc;