media: ti-vpe: cal: add vc and datatype fields to cal_ctx

In preparation for supporting multiple virtual channels and datatypes,
add vc and datatype fields to cal_ctx, initialize them to the currently
used values, and use those fields when writing to the register.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/platform/ti-vpe/cal.c

@@ -335,8 +335,8 @@ static void cal_ctx_csi2_config(struct cal_ctx *ctx)
 	 *  0x2A: RAW8   1 pixel  = 1 byte
 	 *  0x1E: YUV422 2 pixels = 4 bytes
 	 */
-	cal_set_field(&val, 0x1, CAL_CSI2_CTX_DT_MASK);
-	cal_set_field(&val, 0, CAL_CSI2_CTX_VC_MASK);
+	cal_set_field(&val, ctx->datatype, CAL_CSI2_CTX_DT_MASK);
+	cal_set_field(&val, ctx->vc, CAL_CSI2_CTX_VC_MASK);
 	cal_set_field(&val, ctx->v_fmt.fmt.pix.height, CAL_CSI2_CTX_LINES_MASK);
 	cal_set_field(&val, CAL_CSI2_CTX_ATT_PIX, CAL_CSI2_CTX_ATT_MASK);
 	cal_set_field(&val, CAL_CSI2_CTX_PACK_MODE_LINE,
@@ -927,6 +927,8 @@ static struct cal_ctx *cal_ctx_create(struct cal_dev *cal, int inst)
 	ctx->dma_ctx = inst;
 	ctx->csi2_ctx = inst;
 	ctx->cport = inst;
+	ctx->vc = 0;
+	ctx->datatype = CAL_CSI2_CTX_DT_ANY;
 
 	ret = cal_ctx_v4l2_init(ctx);
 	if (ret)

drivers/media/platform/ti-vpe/cal.h

@@ -223,6 +223,8 @@ struct cal_ctx {
 	u8			cport;
 	u8			csi2_ctx;
 	u8			pix_proc;
+	u8			vc;
+	u8			datatype;
 
 	bool			use_pix_proc;
 };

drivers/media/platform/ti-vpe/cal_regs.h

@@ -414,6 +414,8 @@
 #define CAL_CSI2_VC_IRQ_ECC_CORRECTION_IRQ_MASK(n)	BIT(5 + ((n) * 8))
 
 #define CAL_CSI2_CTX_DT_MASK		GENMASK(5, 0)
+#define CAL_CSI2_CTX_DT_DISABLED	0
+#define CAL_CSI2_CTX_DT_ANY		1
 #define CAL_CSI2_CTX_VC_MASK		GENMASK(7, 6)
 #define CAL_CSI2_CTX_CPORT_MASK		GENMASK(12, 8)
 #define CAL_CSI2_CTX_ATT_MASK		BIT(13)