@@ -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)
@@ -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;
@@ -56,6 +56,7 @@
void isc_sama5d2_config_csc(struct isc_device *isc);
void isc_sama5d2_config_cbc(struct isc_device *isc);
+void isc_sama5d2_config_cc(struct isc_device *isc);
void isc_sama5d2_config_csc(struct isc_device *isc)
{
@@ -86,6 +87,19 @@ 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 */
@@ -233,6 +247,7 @@ 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;
The CC submodule is a part of the atmel-isc pipeline, and stands for Color Correction. It is used to apply gains and offsets to the chroma (U, V) components of the YUV elements. Implement the 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> --- Changes in v3: - added module description in commit message Changes in v2: - addded function prototype to avoid warning with W=1 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 | 15 +++++++++++++++ 3 files changed, 19 insertions(+)