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    Subject[PATCH 01/30] media: atmel: atmel-isc: specialize gamma table into product specific
    Date
    Separate the gamma table from the isc base file into the specific sama5d2
    product file.
    Add a pointer to the gamma table and entries count inside the platform
    driver specific struct.

    Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
    ---
    drivers/media/platform/atmel/atmel-isc-base.c | 47 ++-----------------
    drivers/media/platform/atmel/atmel-isc.h | 11 +++--
    .../media/platform/atmel/atmel-sama5d2-isc.c | 45 ++++++++++++++++++
    3 files changed, 56 insertions(+), 47 deletions(-)

    diff --git a/drivers/media/platform/atmel/atmel-isc-base.c b/drivers/media/platform/atmel/atmel-isc-base.c
    index fe3ec8d0eaee..8b6c5e339cb8 100644
    --- a/drivers/media/platform/atmel/atmel-isc-base.c
    +++ b/drivers/media/platform/atmel/atmel-isc-base.c
    @@ -176,48 +176,6 @@ struct isc_format formats_list[] = {

    };

    -/* Gamma table with gamma 1/2.2 */
    -const u32 isc_gamma_table[GAMMA_MAX + 1][GAMMA_ENTRIES] = {
    - /* 0 --> gamma 1/1.8 */
    - { 0x65, 0x66002F, 0x950025, 0xBB0020, 0xDB001D, 0xF8001A,
    - 0x1130018, 0x12B0017, 0x1420016, 0x1580014, 0x16D0013, 0x1810012,
    - 0x1940012, 0x1A60012, 0x1B80011, 0x1C90010, 0x1DA0010, 0x1EA000F,
    - 0x1FA000F, 0x209000F, 0x218000F, 0x227000E, 0x235000E, 0x243000E,
    - 0x251000E, 0x25F000D, 0x26C000D, 0x279000D, 0x286000D, 0x293000C,
    - 0x2A0000C, 0x2AC000C, 0x2B8000C, 0x2C4000C, 0x2D0000B, 0x2DC000B,
    - 0x2E7000B, 0x2F3000B, 0x2FE000B, 0x309000B, 0x314000B, 0x31F000A,
    - 0x32A000A, 0x334000B, 0x33F000A, 0x349000A, 0x354000A, 0x35E000A,
    - 0x368000A, 0x372000A, 0x37C000A, 0x386000A, 0x3900009, 0x399000A,
    - 0x3A30009, 0x3AD0009, 0x3B60009, 0x3BF000A, 0x3C90009, 0x3D20009,
    - 0x3DB0009, 0x3E40009, 0x3ED0009, 0x3F60009 },
    -
    - /* 1 --> gamma 1/2 */
    - { 0x7F, 0x800034, 0xB50028, 0xDE0021, 0x100001E, 0x11E001B,
    - 0x1390019, 0x1520017, 0x16A0015, 0x1800014, 0x1940014, 0x1A80013,
    - 0x1BB0012, 0x1CD0011, 0x1DF0010, 0x1EF0010, 0x200000F, 0x20F000F,
    - 0x21F000E, 0x22D000F, 0x23C000E, 0x24A000E, 0x258000D, 0x265000D,
    - 0x273000C, 0x27F000D, 0x28C000C, 0x299000C, 0x2A5000C, 0x2B1000B,
    - 0x2BC000C, 0x2C8000B, 0x2D3000C, 0x2DF000B, 0x2EA000A, 0x2F5000A,
    - 0x2FF000B, 0x30A000A, 0x314000B, 0x31F000A, 0x329000A, 0x333000A,
    - 0x33D0009, 0x3470009, 0x350000A, 0x35A0009, 0x363000A, 0x36D0009,
    - 0x3760009, 0x37F0009, 0x3880009, 0x3910009, 0x39A0009, 0x3A30009,
    - 0x3AC0008, 0x3B40009, 0x3BD0008, 0x3C60008, 0x3CE0008, 0x3D60009,
    - 0x3DF0008, 0x3E70008, 0x3EF0008, 0x3F70008 },
    -
    - /* 2 --> gamma 1/2.2 */
    - { 0x99, 0x9B0038, 0xD4002A, 0xFF0023, 0x122001F, 0x141001B,
    - 0x15D0019, 0x1760017, 0x18E0015, 0x1A30015, 0x1B80013, 0x1CC0012,
    - 0x1DE0011, 0x1F00010, 0x2010010, 0x2110010, 0x221000F, 0x230000F,
    - 0x23F000E, 0x24D000E, 0x25B000D, 0x269000C, 0x276000C, 0x283000C,
    - 0x28F000C, 0x29B000C, 0x2A7000C, 0x2B3000B, 0x2BF000B, 0x2CA000B,
    - 0x2D5000B, 0x2E0000A, 0x2EB000A, 0x2F5000A, 0x2FF000A, 0x30A000A,
    - 0x3140009, 0x31E0009, 0x327000A, 0x3310009, 0x33A0009, 0x3440009,
    - 0x34D0009, 0x3560009, 0x35F0009, 0x3680008, 0x3710008, 0x3790009,
    - 0x3820008, 0x38A0008, 0x3930008, 0x39B0008, 0x3A30008, 0x3AB0008,
    - 0x3B30008, 0x3BB0008, 0x3C30008, 0x3CB0007, 0x3D20008, 0x3DA0007,
    - 0x3E20007, 0x3E90007, 0x3F00008, 0x3F80007 },
    -};
    -
    #define ISC_IS_FORMAT_RAW(mbus_code) \
    (((mbus_code) & 0xf000) == 0x3000)

    @@ -683,7 +641,7 @@ static void isc_set_pipeline(struct isc_device *isc, u32 pipeline)

    regmap_write(regmap, ISC_CFA_CFG, bay_cfg | ISC_CFA_CFG_EITPOL);

    - gamma = &isc_gamma_table[ctrls->gamma_index][0];
    + gamma = &isc->gamma_table[ctrls->gamma_index][0];
    regmap_bulk_write(regmap, ISC_GAM_BENTRY, gamma, GAMMA_ENTRIES);
    regmap_bulk_write(regmap, ISC_GAM_GENTRY, gamma, GAMMA_ENTRIES);
    regmap_bulk_write(regmap, ISC_GAM_RENTRY, gamma, GAMMA_ENTRIES);
    @@ -2070,7 +2028,8 @@ static int isc_ctrl_init(struct isc_device *isc)

    v4l2_ctrl_new_std(hdl, ops, V4L2_CID_BRIGHTNESS, -1024, 1023, 1, 0);
    v4l2_ctrl_new_std(hdl, ops, V4L2_CID_CONTRAST, -2048, 2047, 1, 256);
    - v4l2_ctrl_new_std(hdl, ops, V4L2_CID_GAMMA, 0, GAMMA_MAX, 1, 2);
    + v4l2_ctrl_new_std(hdl, ops, V4L2_CID_GAMMA, 0, isc->gamma_max, 1,
    + isc->gamma_max);
    isc->awb_ctrl = v4l2_ctrl_new_std(hdl, &isc_awb_ops,
    V4L2_CID_AUTO_WHITE_BALANCE,
    0, 1, 1, 1);
    diff --git a/drivers/media/platform/atmel/atmel-isc.h b/drivers/media/platform/atmel/atmel-isc.h
    index fab8eca58d93..f1df47a4655b 100644
    --- a/drivers/media/platform/atmel/atmel-isc.h
    +++ b/drivers/media/platform/atmel/atmel-isc.h
    @@ -187,6 +187,10 @@ struct isc_ctrls {
    *
    * @current_subdev: current subdevice: the sensor
    * @subdev_entities: list of subdevice entitites
    + *
    + * @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
    */
    struct isc_device {
    struct regmap *regmap;
    @@ -245,16 +249,17 @@ struct isc_device {
    struct v4l2_ctrl *gr_off_ctrl;
    struct v4l2_ctrl *gb_off_ctrl;
    };
    -};

    -#define GAMMA_MAX 2
    #define GAMMA_ENTRIES 64
    + /* pointer to the defined gamma table */
    + const u32 (*gamma_table)[GAMMA_ENTRIES];
    + u32 gamma_max;
    +};

    #define ATMEL_ISC_NAME "atmel-isc"

    extern struct isc_format formats_list[];
    extern const struct isc_format controller_formats[];
    -extern const u32 isc_gamma_table[GAMMA_MAX + 1][GAMMA_ENTRIES];
    extern const struct regmap_config isc_regmap_config;
    extern const struct v4l2_async_notifier_operations isc_async_ops;

    diff --git a/drivers/media/platform/atmel/atmel-sama5d2-isc.c b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
    index 0b78fecfd2a8..c74f36245bd5 100644
    --- a/drivers/media/platform/atmel/atmel-sama5d2-isc.c
    +++ b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
    @@ -54,6 +54,48 @@

    #define ISC_CLK_MAX_DIV 255

    +/* Gamma table with gamma 1/2.2 */
    +const u32 isc_sama5d2_gamma_table[][GAMMA_ENTRIES] = {
    + /* 0 --> gamma 1/1.8 */
    + { 0x65, 0x66002F, 0x950025, 0xBB0020, 0xDB001D, 0xF8001A,
    + 0x1130018, 0x12B0017, 0x1420016, 0x1580014, 0x16D0013, 0x1810012,
    + 0x1940012, 0x1A60012, 0x1B80011, 0x1C90010, 0x1DA0010, 0x1EA000F,
    + 0x1FA000F, 0x209000F, 0x218000F, 0x227000E, 0x235000E, 0x243000E,
    + 0x251000E, 0x25F000D, 0x26C000D, 0x279000D, 0x286000D, 0x293000C,
    + 0x2A0000C, 0x2AC000C, 0x2B8000C, 0x2C4000C, 0x2D0000B, 0x2DC000B,
    + 0x2E7000B, 0x2F3000B, 0x2FE000B, 0x309000B, 0x314000B, 0x31F000A,
    + 0x32A000A, 0x334000B, 0x33F000A, 0x349000A, 0x354000A, 0x35E000A,
    + 0x368000A, 0x372000A, 0x37C000A, 0x386000A, 0x3900009, 0x399000A,
    + 0x3A30009, 0x3AD0009, 0x3B60009, 0x3BF000A, 0x3C90009, 0x3D20009,
    + 0x3DB0009, 0x3E40009, 0x3ED0009, 0x3F60009 },
    +
    + /* 1 --> gamma 1/2 */
    + { 0x7F, 0x800034, 0xB50028, 0xDE0021, 0x100001E, 0x11E001B,
    + 0x1390019, 0x1520017, 0x16A0015, 0x1800014, 0x1940014, 0x1A80013,
    + 0x1BB0012, 0x1CD0011, 0x1DF0010, 0x1EF0010, 0x200000F, 0x20F000F,
    + 0x21F000E, 0x22D000F, 0x23C000E, 0x24A000E, 0x258000D, 0x265000D,
    + 0x273000C, 0x27F000D, 0x28C000C, 0x299000C, 0x2A5000C, 0x2B1000B,
    + 0x2BC000C, 0x2C8000B, 0x2D3000C, 0x2DF000B, 0x2EA000A, 0x2F5000A,
    + 0x2FF000B, 0x30A000A, 0x314000B, 0x31F000A, 0x329000A, 0x333000A,
    + 0x33D0009, 0x3470009, 0x350000A, 0x35A0009, 0x363000A, 0x36D0009,
    + 0x3760009, 0x37F0009, 0x3880009, 0x3910009, 0x39A0009, 0x3A30009,
    + 0x3AC0008, 0x3B40009, 0x3BD0008, 0x3C60008, 0x3CE0008, 0x3D60009,
    + 0x3DF0008, 0x3E70008, 0x3EF0008, 0x3F70008 },
    +
    + /* 2 --> gamma 1/2.2 */
    + { 0x99, 0x9B0038, 0xD4002A, 0xFF0023, 0x122001F, 0x141001B,
    + 0x15D0019, 0x1760017, 0x18E0015, 0x1A30015, 0x1B80013, 0x1CC0012,
    + 0x1DE0011, 0x1F00010, 0x2010010, 0x2110010, 0x221000F, 0x230000F,
    + 0x23F000E, 0x24D000E, 0x25B000D, 0x269000C, 0x276000C, 0x283000C,
    + 0x28F000C, 0x29B000C, 0x2A7000C, 0x2B3000B, 0x2BF000B, 0x2CA000B,
    + 0x2D5000B, 0x2E0000A, 0x2EB000A, 0x2F5000A, 0x2FF000A, 0x30A000A,
    + 0x3140009, 0x31E0009, 0x327000A, 0x3310009, 0x33A0009, 0x3440009,
    + 0x34D0009, 0x3560009, 0x35F0009, 0x3680008, 0x3710008, 0x3790009,
    + 0x3820008, 0x38A0008, 0x3930008, 0x39B0008, 0x3A30008, 0x3AB0008,
    + 0x3B30008, 0x3BB0008, 0x3C30008, 0x3CB0007, 0x3D20008, 0x3DA0007,
    + 0x3E20007, 0x3E90007, 0x3F00008, 0x3F80007 },
    +};
    +
    static int isc_parse_dt(struct device *dev, struct isc_device *isc)
    {
    struct device_node *np = dev->of_node;
    @@ -150,6 +192,9 @@ static int atmel_isc_probe(struct platform_device *pdev)
    return ret;
    }

    + isc->gamma_table = isc_sama5d2_gamma_table;
    + isc->gamma_max = 2;
    +
    ret = isc_pipeline_init(isc);
    if (ret)
    return ret;
    --
    2.25.1
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