Re: [PATCH v1 07/18] media: hantro: Add a field to distinguish the hardware versions

Decoders hardware blocks could exist in multiple versions: add
a field to distinguish them at runtime.
Keep the default behavoir to be G1 hardware.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Signed-off-by: Ezequiel Garcia <redacted>
Signed-off-by: Adrian Ratiu <redacted>
---
 drivers/staging/media/hantro/hantro.h     | 5 +++++
 drivers/staging/media/hantro/hantro_drv.c | 2 ++
 2 files changed, 7 insertions(+)

diff --git a/drivers/staging/media/hantro/hantro.h b/drivers/staging/media/hantro/hantro.h
index bde65231f22f..2a566dfc2fe3 100644
--- a/drivers/staging/media/hantro/hantro.h
+++ b/drivers/staging/media/hantro/hantro.h

@@ -36,6 +36,9 @@ struct hantro_codec_ops;
 #define HANTRO_H264_DECODER	BIT(18)
 #define HANTRO_DECODERS		0xffff0000
 
+#define HANTRO_G1_REV		0x6731
+#define HANTRO_G2_REV		0x6732
+
 /**
  * struct hantro_irq - irq handler and name
  *

@@ -170,6 +173,7 @@ hantro_vdev_to_func(struct video_device *vdev)
  * @enc_base:		Mapped address of VPU encoder register for convenience.
  * @dec_base:		Mapped address of VPU decoder register for convenience.
  * @ctrl_base:		Mapped address of VPU control block.
+ * @core_hw_dec_rev	Runtime detected HW decoder core revision
  * @vpu_mutex:		Mutex to synchronize V4L2 calls.
  * @irqlock:		Spinlock to synchronize access to data structures
  *			shared with interrupt handlers.

@@ -189,6 +193,7 @@ struct hantro_dev {
 	void __iomem *enc_base;
 	void __iomem *dec_base;
 	void __iomem *ctrl_base;
+	u32 core_hw_dec_rev;
 
 	struct mutex vpu_mutex;	/* video_device lock */
 	spinlock_t irqlock;

diff --git a/drivers/staging/media/hantro/hantro_drv.c b/drivers/staging/media/hantro/hantro_drv.c
index 0570047c7fa0..e1443c394f62 100644
--- a/drivers/staging/media/hantro/hantro_drv.c
+++ b/drivers/staging/media/hantro/hantro_drv.c

@@ -840,6 +840,8 @@ static int hantro_probe(struct platform_device *pdev)
 	}
 	vpu->enc_base = vpu->reg_bases[0] + vpu->variant->enc_offset;
 	vpu->dec_base = vpu->reg_bases[0] + vpu->variant->dec_offset;
+	/* by default decoder is G1 */
+	vpu->core_hw_dec_rev = HANTRO_G1_REV;