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    Subject[PATCH 19/30] media: atmel: atmel-isc: add CC initialization function
    Date
    Implement the color correction (CC) submodule initialization, as a product
    specific function, which currently configures the neutral point in color
    correction.

    Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
    ---
    drivers/media/platform/atmel/atmel-isc-base.c | 1 +
    drivers/media/platform/atmel/atmel-isc.h | 3 +++
    drivers/media/platform/atmel/atmel-sama5d2-isc.c | 14 ++++++++++++++
    3 files changed, 18 insertions(+)

    diff --git a/drivers/media/platform/atmel/atmel-isc-base.c b/drivers/media/platform/atmel/atmel-isc-base.c
    index 66005cb3940f..182903803c05 100644
    --- a/drivers/media/platform/atmel/atmel-isc-base.c
    +++ b/drivers/media/platform/atmel/atmel-isc-base.c
    @@ -653,6 +653,7 @@ static void isc_set_pipeline(struct isc_device *isc, u32 pipeline)

    isc->config_csc(isc);
    isc->config_cbc(isc);
    + isc->config_cc(isc);
    }

    static int isc_update_profile(struct isc_device *isc)
    diff --git a/drivers/media/platform/atmel/atmel-isc.h b/drivers/media/platform/atmel/atmel-isc.h
    index f574bcc3ba67..a5f8d5001381 100644
    --- a/drivers/media/platform/atmel/atmel-isc.h
    +++ b/drivers/media/platform/atmel/atmel-isc.h
    @@ -225,6 +225,8 @@ struct isc_reg_offsets {
    * specific CSC module
    * @config_cbc: pointer to a function that initializes product
    * specific CBC module
    + * @config_cc: pointer to a function that initializes product
    + * specific CC module
    *
    * @offsets: struct holding the product specific register offsets
    */
    @@ -298,6 +300,7 @@ struct isc_device {
    struct {
    void (*config_csc)(struct isc_device *isc);
    void (*config_cbc)(struct isc_device *isc);
    + void (*config_cc)(struct isc_device *isc);
    };

    struct isc_reg_offsets offsets;
    diff --git a/drivers/media/platform/atmel/atmel-sama5d2-isc.c b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
    index da516f2f5ca9..917d10baa525 100644
    --- a/drivers/media/platform/atmel/atmel-sama5d2-isc.c
    +++ b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
    @@ -83,6 +83,19 @@ void isc_sama5d2_config_cbc(struct isc_device *isc)
    isc->ctrls.contrast);
    }

    +void isc_sama5d2_config_cc(struct isc_device *isc)
    +{
    + struct regmap *regmap = isc->regmap;
    +
    + /* Configure each register at the neutral fixed point 1.0 or 0.0 */
    + regmap_write(regmap, ISC_CC_RR_RG, (1 << 8));
    + regmap_write(regmap, ISC_CC_RB_OR, 0);
    + regmap_write(regmap, ISC_CC_GR_GG, (1 << 8) << 16);
    + regmap_write(regmap, ISC_CC_GB_OG, 0);
    + regmap_write(regmap, ISC_CC_BR_BG, 0);
    + regmap_write(regmap, ISC_CC_BB_OB, (1 << 8));
    +}
    +
    /* Gamma table with gamma 1/2.2 */
    const u32 isc_sama5d2_gamma_table[][GAMMA_ENTRIES] = {
    /* 0 --> gamma 1/1.8 */
    @@ -230,6 +243,7 @@ static int atmel_isc_probe(struct platform_device *pdev)

    isc->config_csc = isc_sama5d2_config_csc;
    isc->config_cbc = isc_sama5d2_config_cbc;
    + isc->config_cc = isc_sama5d2_config_cc;

    isc->offsets.csc = ISC_SAMA5D2_CSC_OFFSET;
    isc->offsets.cbc = ISC_SAMA5D2_CBC_OFFSET;
    --
    2.25.1
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