[PATCH v3 18/33] media: atmel: atmel-isc: extend pipeline with extra modules

From: Eugen Hristev
Date: Tue Apr 13 2021 - 07:02:53 EST


Newer ISC pipelines have the additional modules of
Defective Pixel Correction -> DPC itself,
Defective Pixel Correction -> Green Disparity Correction (DPC_GDC)
Defective Pixel Correction -> Black Level Correction (DPC_BLC)
Vertical and Horizontal Scaler -> VHXS

Some products have this full pipeline (sama7g5), other products do not (sama5d2)

Add the modules to the isc base, and also extend the register range to include
the modules.

Signed-off-by: Eugen Hristev <eugen.hristev@xxxxxxxxxxxxx>
---
drivers/media/platform/atmel/atmel-isc-base.c | 11 ++++++--
drivers/media/platform/atmel/atmel-isc.h | 28 +++++++++++--------
2 files changed, 25 insertions(+), 14 deletions(-)

diff --git a/drivers/media/platform/atmel/atmel-isc-base.c b/drivers/media/platform/atmel/atmel-isc-base.c
index 2a619eef6aa3..66005cb3940f 100644
--- a/drivers/media/platform/atmel/atmel-isc-base.c
+++ b/drivers/media/platform/atmel/atmel-isc-base.c
@@ -2309,8 +2309,14 @@ int isc_pipeline_init(struct isc_device *isc)
struct regmap_field *regs;
unsigned int i;

- /* WB-->CFA-->CC-->GAM-->CSC-->CBC-->SUB422-->SUB420 */
+ /*
+ * DPCEN-->GDCEN-->BLCEN-->WB-->CFA-->CC-->
+ * GAM-->VHXS-->CSC-->CBC-->SUB422-->SUB420
+ */
const struct reg_field regfields[ISC_PIPE_LINE_NODE_NUM] = {
+ REG_FIELD(ISC_DPC_CTRL, 0, 0),
+ REG_FIELD(ISC_DPC_CTRL, 1, 1),
+ REG_FIELD(ISC_DPC_CTRL, 2, 2),
REG_FIELD(ISC_WB_CTRL, 0, 0),
REG_FIELD(ISC_CFA_CTRL, 0, 0),
REG_FIELD(ISC_CC_CTRL, 0, 0),
@@ -2318,6 +2324,7 @@ int isc_pipeline_init(struct isc_device *isc)
REG_FIELD(ISC_GAM_CTRL, 1, 1),
REG_FIELD(ISC_GAM_CTRL, 2, 2),
REG_FIELD(ISC_GAM_CTRL, 3, 3),
+ REG_FIELD(ISC_VHXS_CTRL, 0, 0),
REG_FIELD(ISC_CSC_CTRL + isc->offsets.csc, 0, 0),
REG_FIELD(ISC_CBC_CTRL + isc->offsets.cbc, 0, 0),
REG_FIELD(ISC_SUB422_CTRL + isc->offsets.sub422, 0, 0),
@@ -2336,7 +2343,7 @@ int isc_pipeline_init(struct isc_device *isc)
}

/* regmap configuration */
-#define ATMEL_ISC_REG_MAX 0xbfc
+#define ATMEL_ISC_REG_MAX 0xd5c
const struct regmap_config isc_regmap_config = {
.reg_bits = 32,
.reg_stride = 4,
diff --git a/drivers/media/platform/atmel/atmel-isc.h b/drivers/media/platform/atmel/atmel-isc.h
index c5d956fd20a0..f574bcc3ba67 100644
--- a/drivers/media/platform/atmel/atmel-isc.h
+++ b/drivers/media/platform/atmel/atmel-isc.h
@@ -68,17 +68,21 @@ struct isc_format {
};

/* Pipeline bitmap */
-#define WB_ENABLE BIT(0)
-#define CFA_ENABLE BIT(1)
-#define CC_ENABLE BIT(2)
-#define GAM_ENABLE BIT(3)
-#define GAM_BENABLE BIT(4)
-#define GAM_GENABLE BIT(5)
-#define GAM_RENABLE BIT(6)
-#define CSC_ENABLE BIT(7)
-#define CBC_ENABLE BIT(8)
-#define SUB422_ENABLE BIT(9)
-#define SUB420_ENABLE BIT(10)
+#define DPC_DPCENABLE BIT(0)
+#define DPC_GDCENABLE BIT(1)
+#define DPC_BLCENABLE BIT(2)
+#define WB_ENABLE BIT(3)
+#define CFA_ENABLE BIT(4)
+#define CC_ENABLE BIT(5)
+#define GAM_ENABLE BIT(6)
+#define GAM_BENABLE BIT(7)
+#define GAM_GENABLE BIT(8)
+#define GAM_RENABLE BIT(9)
+#define VHXS_ENABLE BIT(10)
+#define CSC_ENABLE BIT(11)
+#define CBC_ENABLE BIT(12)
+#define SUB422_ENABLE BIT(13)
+#define SUB420_ENABLE BIT(14)

#define GAM_ENABLES (GAM_RENABLE | GAM_GENABLE | GAM_BENABLE | GAM_ENABLE)

@@ -142,7 +146,7 @@ struct isc_ctrls {
u32 hist_minmax[HIST_BAYER][2];
};

-#define ISC_PIPE_LINE_NODE_NUM 11
+#define ISC_PIPE_LINE_NODE_NUM 15

/*
* struct isc_reg_offsets - ISC device register offsets
--
2.25.1