media: hantro: postproc: Introduce struct hantro_postproc_ops

Turns out the post-processor block on the G2 core is substantially
different from the one on the G1 core. Introduce hantro_postproc_ops
with .enable and .disable methods, which will allow to support
the G2 post-processor cleanly.

Signed-off-by: Ezequiel Garcia <[e-mail]>
Signed-off-by: Andrzej Pietrasiewicz <[e-mail]>
Reviewed-by: Benjamin Gaignard <[e-mail]>
Signed-off-by: Hans Verkuil <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

drivers/staging/media/hantro/hantro.h

···
 
 struct hantro_ctx;
 struct hantro_codec_ops;
+struct hantro_postproc_ops;
 
 #define HANTRO_JPEG_ENCODER	BIT(0)
 #define HANTRO_ENCODERS		0x0000ffff
···
  * @num_dec_fmts:		Number of decoder formats.
  * @postproc_fmts:		Post-processor formats.
  * @num_postproc_fmts:		Number of post-processor formats.
+ * @postproc_ops:		Post-processor ops.
  * @codec:			Supported codecs
  * @codec_ops:			Codec ops.
  * @init:			Initialize hardware, optional.
···
  * @num_clocks:			number of clocks in the array
  * @reg_names:			array of register range names
  * @num_regs:			number of register range names in the array
- * @postproc_regs:		&struct hantro_postproc_regs pointer
  */
 struct hantro_variant {
 	unsigned int enc_offset;
···
 	unsigned int num_dec_fmts;
 	const struct hantro_fmt *postproc_fmts;
 	unsigned int num_postproc_fmts;
+	const struct hantro_postproc_ops *postproc_ops;
 	unsigned int codec;
 	const struct hantro_codec_ops *codec_ops;
 	int (*init)(struct hantro_dev *vpu);
···
 	int num_clocks;
 	const char * const *reg_names;
 	int num_regs;
-	const struct hantro_postproc_regs *postproc_regs;
 };
 
 /**

drivers/staging/media/hantro/hantro_hw.h

···
 };
 
 /**
+ * struct hantro_postproc_ops - post-processor operations
+ *
+ * @enable:	Enable the post-processor block. Optional.
+ * @disable:	Disable the post-processor block. Optional.
+ */
+struct hantro_postproc_ops {
+	void (*enable)(struct hantro_ctx *ctx);
+	void (*disable)(struct hantro_ctx *ctx);
+};
+
+/**
  * struct hantro_codec_ops - codec mode specific operations
  *
  * @init:	If needed, can be used for initialization.
···
 extern const struct hantro_variant rk3399_vpu_variant;
 extern const struct hantro_variant sama5d4_vdec_variant;
 
-extern const struct hantro_postproc_regs hantro_g1_postproc_regs;
+extern const struct hantro_postproc_ops hantro_g1_postproc_ops;
 
 extern const u32 hantro_vp8_dec_mc_filter[8][6];
 

drivers/staging/media/hantro/hantro_postproc.c

···
 #define HANTRO_PP_REG_WRITE(vpu, reg_name, val) \
 { \
 	hantro_reg_write(vpu, \
-			 &(vpu)->variant->postproc_regs->reg_name, \
+			 &hantro_g1_postproc_regs.reg_name, \
 			 val); \
 }
 
 #define HANTRO_PP_REG_WRITE_S(vpu, reg_name, val) \
 { \
 	hantro_reg_write_s(vpu, \
-			   &(vpu)->variant->postproc_regs->reg_name, \
+			   &hantro_g1_postproc_regs.reg_name, \
 			   val); \
 }
 
···
 	return fmt->fourcc != V4L2_PIX_FMT_NV12;
 }
 
-void hantro_postproc_enable(struct hantro_ctx *ctx)
+static void hantro_postproc_g1_enable(struct hantro_ctx *ctx)
 {
 	struct hantro_dev *vpu = ctx->dev;
 	struct vb2_v4l2_buffer *dst_buf;
 	u32 src_pp_fmt, dst_pp_fmt;
 	dma_addr_t dst_dma;
-
-	if (!vpu->variant->postproc_regs)
-		return;
 
 	/* Turn on pipeline mode. Must be done first. */
 	HANTRO_PP_REG_WRITE_S(vpu, pipeline_en, 0x1);
···
 	return 0;
 }
 
+static void hantro_postproc_g1_disable(struct hantro_ctx *ctx)
+{
+	struct hantro_dev *vpu = ctx->dev;
+
+	HANTRO_PP_REG_WRITE_S(vpu, pipeline_en, 0x0);
+}
+
 void hantro_postproc_disable(struct hantro_ctx *ctx)
 {
 	struct hantro_dev *vpu = ctx->dev;
 
-	if (!vpu->variant->postproc_regs)
-		return;
-
-	HANTRO_PP_REG_WRITE_S(vpu, pipeline_en, 0x0);
+	if (vpu->variant->postproc_ops && vpu->variant->postproc_ops->disable)
+		vpu->variant->postproc_ops->disable(ctx);
 }
+
+void hantro_postproc_enable(struct hantro_ctx *ctx)
+{
+	struct hantro_dev *vpu = ctx->dev;
+
+	if (vpu->variant->postproc_ops && vpu->variant->postproc_ops->enable)
+		vpu->variant->postproc_ops->enable(ctx);
+}
+
+const struct hantro_postproc_ops hantro_g1_postproc_ops = {
+	.enable = hantro_postproc_g1_enable,
+	.disable = hantro_postproc_g1_disable,
+};

drivers/staging/media/hantro/imx8m_vpu_hw.c

···
 	.num_dec_fmts = ARRAY_SIZE(imx8m_vpu_dec_fmts),
 	.postproc_fmts = imx8m_vpu_postproc_fmts,
 	.num_postproc_fmts = ARRAY_SIZE(imx8m_vpu_postproc_fmts),
-	.postproc_regs = &hantro_g1_postproc_regs,
+	.postproc_ops = &hantro_g1_postproc_ops,
 	.codec = HANTRO_MPEG2_DECODER | HANTRO_VP8_DECODER |
 		 HANTRO_H264_DECODER,
 	.codec_ops = imx8mq_vpu_codec_ops,

drivers/staging/media/hantro/rockchip_vpu_hw.c

···
 	.num_dec_fmts = ARRAY_SIZE(rk3066_vpu_dec_fmts),
 	.postproc_fmts = rockchip_vpu1_postproc_fmts,
 	.num_postproc_fmts = ARRAY_SIZE(rockchip_vpu1_postproc_fmts),
-	.postproc_regs = &hantro_g1_postproc_regs,
+	.postproc_ops = &hantro_g1_postproc_ops,
 	.codec = HANTRO_MPEG2_DECODER | HANTRO_VP8_DECODER |
 		 HANTRO_H264_DECODER,
 	.codec_ops = rk3036_vpu_codec_ops,
···
 	.num_dec_fmts = ARRAY_SIZE(rk3066_vpu_dec_fmts),
 	.postproc_fmts = rockchip_vpu1_postproc_fmts,
 	.num_postproc_fmts = ARRAY_SIZE(rockchip_vpu1_postproc_fmts),
-	.postproc_regs = &hantro_g1_postproc_regs,
+	.postproc_ops = &hantro_g1_postproc_ops,
 	.codec = HANTRO_JPEG_ENCODER | HANTRO_MPEG2_DECODER |
 		 HANTRO_VP8_DECODER | HANTRO_H264_DECODER,
 	.codec_ops = rk3066_vpu_codec_ops,
···
 	.num_dec_fmts = ARRAY_SIZE(rk3288_vpu_dec_fmts),
 	.postproc_fmts = rockchip_vpu1_postproc_fmts,
 	.num_postproc_fmts = ARRAY_SIZE(rockchip_vpu1_postproc_fmts),
-	.postproc_regs = &hantro_g1_postproc_regs,
+	.postproc_ops = &hantro_g1_postproc_ops,
 	.codec = HANTRO_JPEG_ENCODER | HANTRO_MPEG2_DECODER |
 		 HANTRO_VP8_DECODER | HANTRO_H264_DECODER,
 	.codec_ops = rk3288_vpu_codec_ops,

drivers/staging/media/hantro/sama5d4_vdec_hw.c

···
 	.num_dec_fmts = ARRAY_SIZE(sama5d4_vdec_fmts),
 	.postproc_fmts = sama5d4_vdec_postproc_fmts,
 	.num_postproc_fmts = ARRAY_SIZE(sama5d4_vdec_postproc_fmts),
-	.postproc_regs = &hantro_g1_postproc_regs,
+	.postproc_ops = &hantro_g1_postproc_ops,
 	.codec = HANTRO_MPEG2_DECODER | HANTRO_VP8_DECODER |
 		 HANTRO_H264_DECODER,
 	.codec_ops = sama5d4_vdec_codec_ops,