linux-kernel - [PATCH 5/9] media: cedrus: Remove MPEG1 support

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Date:   Wed, 13 Jun 2018 16:07:10 +0200
From:   Maxime Ripard <maxime.ripard@...tlin.com>
To:     hans.verkuil@...co.com, acourbot@...omium.org,
        sakari.ailus@...ux.intel.com,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc:     tfiga@...omium.org, posciak@...omium.org,
        Paul Kocialkowski <paul.kocialkowski@...tlin.com>,
        Chen-Yu Tsai <wens@...e.org>, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-media@...r.kernel.org,
        nicolas.dufresne@...labora.com, jenskuske@...il.com,
        linux-sunxi@...glegroups.com,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Maxime Ripard <maxime.ripard@...tlin.com>
Subject: [PATCH 5/9] media: cedrus: Remove MPEG1 support

The MPEG1 codec is obsolete, and that code hasn't been tested either. Since
it stands in the way of further refactoring, remove it entirely.

Signed-off-by: Maxime Ripard <maxime.ripard@...tlin.com>
---
 drivers/media/platform/sunxi/cedrus/sunxi_cedrus_dec.c   | 4 +---
 drivers/media/platform/sunxi/cedrus/sunxi_cedrus_mpeg2.c | 8 ++------
 drivers/media/platform/sunxi/cedrus/sunxi_cedrus_mpeg2.h | 2 +-
 3 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/drivers/media/platform/sunxi/cedrus/sunxi_cedrus_dec.c b/drivers/media/platform/sunxi/cedrus/sunxi_cedrus_dec.c
index c19acf9626c4..f274408ab5a7 100644
--- a/drivers/media/platform/sunxi/cedrus/sunxi_cedrus_dec.c
+++ b/drivers/media/platform/sunxi/cedrus/sunxi_cedrus_dec.c
@@ -80,7 +80,6 @@ void sunxi_cedrus_device_run(void *priv)
 	struct sunxi_cedrus_run run = { 0 };
 	struct media_request *src_req, *dst_req;
 	unsigned long flags;
-	bool mpeg1 = false;
 
 	run.src = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
 	if (!run.src) {
@@ -123,7 +122,6 @@ void sunxi_cedrus_device_run(void *priv)
 		run.mpeg2.hdr = get_ctrl_ptr(ctx, SUNXI_CEDRUS_CTRL_DEC_MPEG2_FRAME_HDR);
 		sunxi_cedrus_mpeg2_setup(ctx, &run);
 
-		mpeg1 = run.mpeg2.hdr->type == MPEG1;
 		break;
 
 	default:
@@ -146,7 +144,7 @@ void sunxi_cedrus_device_run(void *priv)
 
 	if (!ctx->job_abort) {
 		if (ctx->vpu_src_fmt->fourcc == V4L2_PIX_FMT_MPEG2_FRAME)
-			sunxi_cedrus_mpeg2_trigger(ctx, mpeg1);
+			sunxi_cedrus_mpeg2_trigger(ctx);
 	} else {
 		v4l2_m2m_buf_done(run.src, VB2_BUF_STATE_ERROR);
 		v4l2_m2m_buf_done(run.dst, VB2_BUF_STATE_ERROR);
diff --git a/drivers/media/platform/sunxi/cedrus/sunxi_cedrus_mpeg2.c b/drivers/media/platform/sunxi/cedrus/sunxi_cedrus_mpeg2.c
index 85e6fc2fbdb2..d1d7a3cfce0d 100644
--- a/drivers/media/platform/sunxi/cedrus/sunxi_cedrus_mpeg2.c
+++ b/drivers/media/platform/sunxi/cedrus/sunxi_cedrus_mpeg2.c
@@ -148,13 +148,9 @@ void sunxi_cedrus_mpeg2_setup(struct sunxi_cedrus_ctx *ctx,
 	sunxi_cedrus_write(dev, src_buf_addr + VBV_SIZE - 1, VE_MPEG_VLD_END);
 }
 
-void sunxi_cedrus_mpeg2_trigger(struct sunxi_cedrus_ctx *ctx, bool mpeg1)
+void sunxi_cedrus_mpeg2_trigger(struct sunxi_cedrus_ctx *ctx)
 {
 	struct sunxi_cedrus_dev *dev = ctx->dev;
 
-	/* Trigger MPEG engine. */
-	if (mpeg1)
-		sunxi_cedrus_write(dev, VE_TRIG_MPEG1, VE_MPEG_TRIGGER);
-	else
-		sunxi_cedrus_write(dev, VE_TRIG_MPEG2, VE_MPEG_TRIGGER);
+	sunxi_cedrus_write(dev, VE_TRIG_MPEG2, VE_MPEG_TRIGGER);
 }
diff --git a/drivers/media/platform/sunxi/cedrus/sunxi_cedrus_mpeg2.h b/drivers/media/platform/sunxi/cedrus/sunxi_cedrus_mpeg2.h
index b572001d47f2..4c380becfa1a 100644
--- a/drivers/media/platform/sunxi/cedrus/sunxi_cedrus_mpeg2.h
+++ b/drivers/media/platform/sunxi/cedrus/sunxi_cedrus_mpeg2.h
@@ -28,6 +28,6 @@ struct sunxi_cedrus_run;
 
 void sunxi_cedrus_mpeg2_setup(struct sunxi_cedrus_ctx *ctx,
 			      struct sunxi_cedrus_run *run);
-void sunxi_cedrus_mpeg2_trigger(struct sunxi_cedrus_ctx *ctx, bool mpeg1);
+void sunxi_cedrus_mpeg2_trigger(struct sunxi_cedrus_ctx *ctx);
 
 #endif
-- 
2.17.0