linux-kernel - [Patch v4 05/11] media: s5p-mfc: Add support for rate controls in MFCv12

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Message-Id: <20231025102216.50480-6-aakarsh.jain@samsung.com>
Date:   Wed, 25 Oct 2023 15:52:10 +0530
From:   Aakarsh Jain <aakarsh.jain@...sung.com>
To:     linux-arm-kernel@...ts.infradead.org, linux-media@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Cc:     m.szyprowski@...sung.com, andrzej.hajda@...el.com,
        mchehab@...nel.org, hverkuil-cisco@...all.nl,
        krzysztof.kozlowski+dt@...aro.org, dillon.minfei@...il.com,
        david.plowman@...pberrypi.com, mark.rutland@....com,
        robh+dt@...nel.org, conor+dt@...nel.org,
        linux-samsung-soc@...r.kernel.org, andi@...zian.org,
        gost.dev@...sung.com, alim.akhtar@...sung.com,
        aswani.reddy@...sung.com, pankaj.dubey@...sung.com,
        ajaykumar.rs@...sung.com, aakarsh.jain@...sung.com,
        linux-fsd@...la.com, Smitha T Murthy <smithatmurthy@...il.com>
Subject: [Patch v4 05/11] media: s5p-mfc: Add support for rate controls in
 MFCv12

In MFCv12, the rc configs are changed with support for CBR loose,
CBR tight and Variable Bitrate (VBR) added.

Cc: linux-fsd@...la.com
Signed-off-by: Smitha T Murthy <smithatmurthy@...il.com>
Signed-off-by: Aakarsh Jain <aakarsh.jain@...sung.com>
---
 .../platform/samsung/s5p-mfc/s5p_mfc_opr_v6.c | 22 +++++++++++++++----
 .../platform/samsung/s5p-mfc/s5p_mfc_opr_v6.h |  1 +
 2 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v6.c b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v6.c
index e579c765e902..bed45857bd6c 100644
--- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v6.c
+++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v6.c
@@ -1025,10 +1025,24 @@ static int s5p_mfc_set_enc_params(struct s5p_mfc_ctx *ctx)
 
 	/* reaction coefficient */
 	if (p->rc_frame) {
-		if (p->rc_reaction_coeff < TIGHT_CBR_MAX) /* tight CBR */
-			writel(1, mfc_regs->e_rc_mode);
-		else					  /* loose CBR */
-			writel(2, mfc_regs->e_rc_mode);
+		if (IS_MFCV12(dev)) {
+			/* loose CBR */
+			if (p->rc_reaction_coeff < LOOSE_CBR_MAX)
+				writel(1, mfc_regs->e_rc_mode);
+			/* tight CBR */
+			else if (p->rc_reaction_coeff < TIGHT_CBR_MAX)
+				writel(0, mfc_regs->e_rc_mode);
+			/* VBR */
+			else
+				writel(2, mfc_regs->e_rc_mode);
+		} else {
+			/* tight CBR */
+			if (p->rc_reaction_coeff < TIGHT_CBR_MAX)
+				writel(1, mfc_regs->e_rc_mode);
+			/* loose CBR */
+			else
+				writel(2, mfc_regs->e_rc_mode);
+		}
 	}
 
 	/* seq header ctrl */
diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v6.h b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v6.h
index 30269f3e68e8..24752a712fbf 100644
--- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v6.h
+++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v6.h
@@ -40,6 +40,7 @@
 #define ENC_H264_LEVEL_MAX		42
 #define ENC_MPEG4_VOP_TIME_RES_MAX	((1 << 16) - 1)
 #define FRAME_DELTA_H264_H263		1
+#define LOOSE_CBR_MAX			5
 #define TIGHT_CBR_MAX			10
 #define ENC_HEVC_RC_FRAME_RATE_MAX	((1 << 16) - 1)
 #define ENC_HEVC_QP_INDEX_MIN		-12
-- 
2.17.1