target/linux/at91/patches-5.10/179-media-atmel-atmel-isc-create-callback-for-RLP-submod.patch

   1 From ece1d7059731e31875e6eb464da4fb4a16465305 Mon Sep 17 00:00:00 2001
   2 From: Eugen Hristev <eugen.hristev@microchip.com>
   3 Date: Tue, 13 Apr 2021 12:57:21 +0200
   4 Subject: [PATCH 179/247] media: atmel: atmel-isc: create callback for RLP
   5  submodule product specific
   6
   7 The RLP submodule is a part of the atmel-isc pipeline, and stands for
   8 Rounding,Limiting and Packaging. It used to extract specific data from the
   9 ISC pipeline. For example if we want to output greyscale 8 bit, we would
  10 use limiting to 8 bits, and packaging to Luma component only.
  11
  12 Create a product specific callback for initializing the RLP submodule
  13 of the pipeline
  14
  15 [hverkuil: made isc_sama5d2_config_rlp static]
  16
  17 Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
  18 Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
  19 Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
  20 ---
  21  drivers/media/platform/atmel/atmel-isc-base.c    |  6 ++----
  22  drivers/media/platform/atmel/atmel-isc.h         |  3 +++
  23  drivers/media/platform/atmel/atmel-sama5d2-isc.c | 10 ++++++++++
  24  3 files changed, 15 insertions(+), 4 deletions(-)
  25
  26 --- a/drivers/media/platform/atmel/atmel-isc-base.c
  27 +++ b/drivers/media/platform/atmel/atmel-isc-base.c
  28 @@ -719,11 +719,10 @@ static void isc_set_histogram(struct isc
  29  static int isc_configure(struct isc_device *isc)
  30  {
  31         struct regmap *regmap = isc->regmap;
  32 -       u32 pfe_cfg0, rlp_mode, dcfg, mask, pipeline;
  33 +       u32 pfe_cfg0, dcfg, mask, pipeline;
  34         struct isc_subdev_entity *subdev = isc->current_subdev;
  35
  36         pfe_cfg0 = isc->config.sd_format->pfe_cfg0_bps;
  37 -       rlp_mode = isc->config.rlp_cfg_mode;
  38         pipeline = isc->config.bits_pipeline;
  39
  40         dcfg = isc->config.dcfg_imode | isc->dcfg;
  41 @@ -736,8 +735,7 @@ static int isc_configure(struct isc_devi
  42
  43         regmap_update_bits(regmap, ISC_PFE_CFG0, mask, pfe_cfg0);
  44
  45 -       regmap_update_bits(regmap, ISC_RLP_CFG + isc->offsets.rlp,
  46 -                          ISC_RLP_CFG_MODE_MASK, rlp_mode);
  47 +       isc->config_rlp(isc);
  48
  49         regmap_write(regmap, ISC_DCFG + isc->offsets.dma, dcfg);
  50
  51 --- a/drivers/media/platform/atmel/atmel-isc.h
  52 +++ b/drivers/media/platform/atmel/atmel-isc.h
  53 @@ -230,6 +230,8 @@ struct isc_reg_offsets {
  54   *                     specific CC module
  55   * @config_gam:                pointer to a function that initializes product
  56   *                     specific GAMMA module
  57 + * @config_rlp:                pointer to a function that initializes product
  58 + *                     specific RLP module
  59   * @config_ctrls:      pointer to a functoin that initializes product
  60   *                     specific v4l2 controls.
  61   *
  62 @@ -308,6 +310,7 @@ struct isc_device {
  63                 void (*config_cbc)(struct isc_device *isc);
  64                 void (*config_cc)(struct isc_device *isc);
  65                 void (*config_gam)(struct isc_device *isc);
  66 +               void (*config_rlp)(struct isc_device *isc);
  67
  68                 void (*config_ctrls)(struct isc_device *isc,
  69                                      const struct v4l2_ctrl_ops *ops);
  70 --- a/drivers/media/platform/atmel/atmel-sama5d2-isc.c
  71 +++ b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
  72 @@ -117,6 +117,15 @@ static void isc_sama5d2_config_gam(struc
  73         /* No specific gamma configuration */
  74  }
  75
  76 +static void isc_sama5d2_config_rlp(struct isc_device *isc)
  77 +{
  78 +       struct regmap *regmap = isc->regmap;
  79 +       u32 rlp_mode = isc->config.rlp_cfg_mode;
  80 +
  81 +       regmap_update_bits(regmap, ISC_RLP_CFG + isc->offsets.rlp,
  82 +                          ISC_RLP_CFG_MODE_MASK, rlp_mode);
  83 +}
  84 +
  85  /* Gamma table with gamma 1/2.2 */
  86  static const u32 isc_sama5d2_gamma_table[][GAMMA_ENTRIES] = {
  87         /* 0 --> gamma 1/1.8 */
  88 @@ -288,6 +297,7 @@ static int atmel_isc_probe(struct platfo
  89         isc->config_cbc = isc_sama5d2_config_cbc;
  90         isc->config_cc = isc_sama5d2_config_cc;
  91         isc->config_gam = isc_sama5d2_config_gam;
  92 +       isc->config_rlp = isc_sama5d2_config_rlp;
  93         isc->config_ctrls = isc_sama5d2_config_ctrls;
  94
  95         isc->offsets.csc = ISC_SAMA5D2_CSC_OFFSET;