All of lore.kernel.org
 help / color / mirror / Atom feed
From: Alexandre Courbot <acourbot@chromium.org>
To: Yunfei Dong <yunfei.dong@mediatek.com>,
	Tiffany Lin <tiffany.lin@mediatek.com>,
	Andrew-CT Chen <andrew-ct.chen@mediatek.com>,
	Hans Verkuil <hans.verkuil@cisco.com>,
	Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-media@vger.kernel.org, linux-mediatek@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	Alexandre Courbot <acourbot@chromium.org>
Subject: [RFCv1 03/12] media: mtk-vcodec: constify formats
Date: Tue, 28 May 2019 14:56:26 +0900	[thread overview]
Message-ID: <20190528055635.12109-4-acourbot@chromium.org> (raw)
In-Reply-To: <20190528055635.12109-1-acourbot@chromium.org>

Formats are read-only internal memory structures, so make them const.

Signed-off-by: Alexandre Courbot <acourbot@chromium.org>
---
 .../platform/mtk-vcodec/mtk_vcodec_dec.c      | 19 ++++++++++---------
 .../platform/mtk-vcodec/mtk_vcodec_drv.h      |  2 +-
 .../platform/mtk-vcodec/mtk_vcodec_enc.c      | 19 ++++++++++---------
 3 files changed, 21 insertions(+), 19 deletions(-)

diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c
index 851903867bc9..2175883e22d4 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c
@@ -32,7 +32,7 @@
 #define DFT_CFG_WIDTH	MTK_VDEC_MIN_W
 #define DFT_CFG_HEIGHT	MTK_VDEC_MIN_H
 
-static struct mtk_video_fmt mtk_video_formats[] = {
+static const struct mtk_video_fmt mtk_video_formats[] = {
 	{
 		.fourcc = V4L2_PIX_FMT_H264,
 		.type = MTK_FMT_DEC,
@@ -76,9 +76,9 @@ static const struct mtk_codec_framesizes mtk_vdec_framesizes[] = {
 #define NUM_SUPPORTED_FRAMESIZE ARRAY_SIZE(mtk_vdec_framesizes)
 #define NUM_FORMATS ARRAY_SIZE(mtk_video_formats)
 
-static struct mtk_video_fmt *mtk_vdec_find_format(struct v4l2_format *f)
+static const struct mtk_video_fmt *mtk_vdec_find_format(struct v4l2_format *f)
 {
-	struct mtk_video_fmt *fmt;
+	const struct mtk_video_fmt *fmt;
 	unsigned int k;
 
 	for (k = 0; k < NUM_FORMATS; k++) {
@@ -279,7 +279,7 @@ static void mtk_vdec_flush_decoder(struct mtk_vcodec_ctx *ctx)
 static void mtk_vdec_update_fmt(struct mtk_vcodec_ctx *ctx,
 				unsigned int pixelformat)
 {
-	struct mtk_video_fmt *fmt;
+	const struct mtk_video_fmt *fmt;
 	struct mtk_q_data *dst_q_data;
 	unsigned int k;
 
@@ -652,7 +652,8 @@ static int vidioc_vdec_subscribe_evt(struct v4l2_fh *fh,
 	}
 }
 
-static int vidioc_try_fmt(struct v4l2_format *f, struct mtk_video_fmt *fmt)
+static int vidioc_try_fmt(struct v4l2_format *f,
+			  const struct mtk_video_fmt *fmt)
 {
 	struct v4l2_pix_format_mplane *pix_fmt_mp = &f->fmt.pix_mp;
 	int i;
@@ -725,7 +726,7 @@ static int vidioc_try_fmt(struct v4l2_format *f, struct mtk_video_fmt *fmt)
 static int vidioc_try_fmt_vid_cap_mplane(struct file *file, void *priv,
 				struct v4l2_format *f)
 {
-	struct mtk_video_fmt *fmt;
+	const struct mtk_video_fmt *fmt;
 
 	fmt = mtk_vdec_find_format(f);
 	if (!fmt) {
@@ -740,7 +741,7 @@ static int vidioc_try_fmt_vid_out_mplane(struct file *file, void *priv,
 				struct v4l2_format *f)
 {
 	struct v4l2_pix_format_mplane *pix_fmt_mp = &f->fmt.pix_mp;
-	struct mtk_video_fmt *fmt;
+	const struct mtk_video_fmt *fmt;
 
 	fmt = mtk_vdec_find_format(f);
 	if (!fmt) {
@@ -834,7 +835,7 @@ static int vidioc_vdec_s_fmt(struct file *file, void *priv,
 	struct v4l2_pix_format_mplane *pix_mp;
 	struct mtk_q_data *q_data;
 	int ret = 0;
-	struct mtk_video_fmt *fmt;
+	const struct mtk_video_fmt *fmt;
 
 	mtk_v4l2_debug(3, "[%d]", ctx->id);
 
@@ -933,7 +934,7 @@ static int vidioc_enum_framesizes(struct file *file, void *priv,
 
 static int vidioc_enum_fmt(struct v4l2_fmtdesc *f, bool output_queue)
 {
-	struct mtk_video_fmt *fmt;
+	const struct mtk_video_fmt *fmt;
 	int i, j = 0;
 
 	for (i = 0; i < NUM_FORMATS; i++) {
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
index 5da42f555b52..109c7578a8b2 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
@@ -137,7 +137,7 @@ struct mtk_q_data {
 	enum v4l2_field	field;
 	unsigned int	bytesperline[MTK_VCODEC_MAX_PLANES];
 	unsigned int	sizeimage[MTK_VCODEC_MAX_PLANES];
-	struct mtk_video_fmt	*fmt;
+	const struct mtk_video_fmt	*fmt;
 };
 
 /**
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c
index 50351adafc47..2d5a61c06287 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c
@@ -37,7 +37,7 @@
 
 static void mtk_venc_worker(struct work_struct *work);
 
-static struct mtk_video_fmt mtk_video_formats[] = {
+static const struct mtk_video_fmt mtk_video_formats[] = {
 	{
 		.fourcc = V4L2_PIX_FMT_NV12M,
 		.type = MTK_FMT_FRAME,
@@ -166,7 +166,7 @@ static const struct v4l2_ctrl_ops mtk_vcodec_enc_ctrl_ops = {
 
 static int vidioc_enum_fmt(struct v4l2_fmtdesc *f, bool output_queue)
 {
-	struct mtk_video_fmt *fmt;
+	const struct mtk_video_fmt *fmt;
 	int i, j = 0;
 
 	for (i = 0; i < NUM_FORMATS; ++i) {
@@ -274,9 +274,9 @@ static struct mtk_q_data *mtk_venc_get_q_data(struct mtk_vcodec_ctx *ctx,
 	return &ctx->q_data[MTK_Q_DATA_DST];
 }
 
-static struct mtk_video_fmt *mtk_venc_find_format(struct v4l2_format *f)
+static const struct mtk_video_fmt *mtk_venc_find_format(struct v4l2_format *f)
 {
-	struct mtk_video_fmt *fmt;
+	const struct mtk_video_fmt *fmt;
 	unsigned int k;
 
 	for (k = 0; k < NUM_FORMATS; k++) {
@@ -291,7 +291,8 @@ static struct mtk_video_fmt *mtk_venc_find_format(struct v4l2_format *f)
 /* V4L2 specification suggests the driver corrects the format struct if any of
  * the dimensions is unsupported
  */
-static int vidioc_try_fmt(struct v4l2_format *f, struct mtk_video_fmt *fmt)
+static int vidioc_try_fmt(struct v4l2_format *f,
+			  const struct mtk_video_fmt *fmt)
 {
 	struct v4l2_pix_format_mplane *pix_fmt_mp = &f->fmt.pix_mp;
 	int i;
@@ -427,7 +428,7 @@ static int vidioc_venc_s_fmt_cap(struct file *file, void *priv,
 	struct vb2_queue *vq;
 	struct mtk_q_data *q_data;
 	int i, ret;
-	struct mtk_video_fmt *fmt;
+	const struct mtk_video_fmt *fmt;
 
 	vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
 	if (!vq) {
@@ -489,7 +490,7 @@ static int vidioc_venc_s_fmt_out(struct file *file, void *priv,
 	struct vb2_queue *vq;
 	struct mtk_q_data *q_data;
 	int ret, i;
-	struct mtk_video_fmt *fmt;
+	const struct mtk_video_fmt *fmt;
 	struct v4l2_pix_format_mplane *pix_fmt_mp = &f->fmt.pix_mp;
 
 	vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
@@ -588,7 +589,7 @@ static int vidioc_venc_g_fmt(struct file *file, void *priv,
 static int vidioc_try_fmt_vid_cap_mplane(struct file *file, void *priv,
 					 struct v4l2_format *f)
 {
-	struct mtk_video_fmt *fmt;
+	const struct mtk_video_fmt *fmt;
 	struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
 
 	fmt = mtk_venc_find_format(f);
@@ -607,7 +608,7 @@ static int vidioc_try_fmt_vid_cap_mplane(struct file *file, void *priv,
 static int vidioc_try_fmt_vid_out_mplane(struct file *file, void *priv,
 					 struct v4l2_format *f)
 {
-	struct mtk_video_fmt *fmt;
+	const struct mtk_video_fmt *fmt;
 
 	fmt = mtk_venc_find_format(f);
 	if (!fmt) {
-- 
2.22.0.rc1.257.g3120a18244-goog


  parent reply	other threads:[~2019-05-28  5:57 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-28  5:56 [RFCv1 00/12] media: mtk-vcodec: support for MT8183 decoder Alexandre Courbot
2019-05-28  5:56 ` [RFCv1 01/12] media: mtk-vcodec: avoid unneeded pointer-to-long conversions Alexandre Courbot
2019-05-28  5:56 ` [RFCv1 02/12] media: mtk-vcodec: remove unneeded proxy functions Alexandre Courbot
2019-05-28  5:56 ` Alexandre Courbot [this message]
2019-05-28  5:56 ` [RFCv1 04/12] media: mtk-vcodec: fix copyright indent Alexandre Courbot
2019-05-28  9:07   ` Hans Verkuil
2019-05-28  9:08     ` Alexandre Courbot
2019-05-28  5:56 ` [RFCv1 05/12] media: mtk-vcodec: support single-buffer frames Alexandre Courbot
2019-05-28  5:56   ` Alexandre Courbot
2019-05-28  5:56 ` [RFCv1 06/12] media: mtk-vcodec: move stateful ops into their own file Alexandre Courbot
2019-05-28  5:56 ` [RFCv1 07/12] media: mtk-vcodec: abstract firmware interface Alexandre Courbot
2019-05-28  5:56   ` Alexandre Courbot
2019-05-28  9:10   ` Hans Verkuil
2019-05-28  9:16   ` Hans Verkuil
2019-06-04  7:53     ` Alexandre Courbot
2019-05-28  5:56 ` [RFCv1 08/12] media: mtk-vcodec: add SCP firmware ops Alexandre Courbot
2019-05-28  5:56   ` Alexandre Courbot
2019-05-28  5:56 ` [RFCv1 09/12] media: mtk-vcodec: vdec: support stateless API Alexandre Courbot
2019-05-28  5:56 ` [RFCv1 10/12] media: mtk-vcodec: vdec: support stateless H.264 decoding Alexandre Courbot
2019-05-28  5:56 ` [RFCv1 11/12] media: mtk-vcodec: vdec: add media device if using stateless api Alexandre Courbot
2019-05-28  5:56 ` [RFCv1 12/12] media: mtk-vcodec: enable MT8183 decoder Alexandre Courbot
2019-05-28  9:18 ` [RFCv1 00/12] media: mtk-vcodec: support for " Hans Verkuil

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20190528055635.12109-4-acourbot@chromium.org \
    --to=acourbot@chromium.org \
    --cc=andrew-ct.chen@mediatek.com \
    --cc=hans.verkuil@cisco.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-media@vger.kernel.org \
    --cc=linux-mediatek@lists.infradead.org \
    --cc=mchehab@kernel.org \
    --cc=tiffany.lin@mediatek.com \
    --cc=yunfei.dong@mediatek.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.