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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?HDq6OSPfKg0ykBAtZwfCMCpjSgeLCLbiggW3BduB3/9xwVmlJhY8jjfPjPGE?= =?us-ascii?Q?tfkpfMUcmZ3d62CYTh6WmeiEHov+NYXCsNK333WwGEdxHugBQ0jWJ6WptcDZ?= =?us-ascii?Q?ryUkBYnsIOusLQRy5JcVE48aHBbuNEovk3hN85+5mL/2bctn1T2oq/rhGRCf?= =?us-ascii?Q?3L4+8+0bn1srX5UG6LuqgxEOglEy4xUJp1+swBYtkbVY5l/cFGXWgmd56VQX?= =?us-ascii?Q?zqHyxdEBYvKo5egcWqp1ZzHMlMOF/Mbd5ASNsd+R4iI6ksbkYsofuBZXWZ4t?= =?us-ascii?Q?sxn8y4cEfxWf5CcFz/Za+pqVm72edMivuFXEl7yGJw14/z9PLq6UIJRqD3X8?= =?us-ascii?Q?0jq1BhD92X+M3zKWV84NrSoQdv5drKic7gEBJibxURarPfGJUw6RUTvLOx2N?= =?us-ascii?Q?UdBXIX7lNjrJPuS5BZYiXqI697J+keckYjW4okz8wxrHhKn9bj3j0Nh7bH+W?= =?us-ascii?Q?aI40wjgHCIxQyQa7RCygVf1V8z1aj6DmwDV7wiLow+ZlV1u83KnDOah8zGxB?= =?us-ascii?Q?oH/JMS4DS5VrQ1w1sCfak7Z4bgoPbTPuruU6xEWWZtDMHmp2S+OiYtgT4X8x?= =?us-ascii?Q?XEii09CS8bzRhj/lTLC/1V+vkvjawSQYew0l8BkQrb0qUVOCkvZXvoZziHjB?= =?us-ascii?Q?5dQ8KntQlvJEcpl8+/ZstmpaCU5Vn8h8QdC0d0u6D2s/8+ELi9wtbDAHzaPk?= =?us-ascii?Q?GBPgLJ43jXe32nRfdXkQ6erR3DvqKhnnWx3+5HzFc9LB0RmbMcFAbnvE8OVy?= =?us-ascii?Q?jhNNBlR/yLut4Itx2sg78jQQOQKIDgq4xGnx7TInS6trsG/4T6/kGf2Kfpg2?= =?us-ascii?Q?svYY1yeRZb5F6iRBRQVCh1st2JCmaZY+c/AN0pjlV82/U60PEOgbByjlGuTH?= =?us-ascii?Q?43G1pbvac2cwp91gOHQcUfxnqWhoo0TCHGK7nTss7ZTHdOOl1LjLFoCqo1EI?= =?us-ascii?Q?bimnKR2YLw8lMtZVYuyWhbCGAoT9LVgijx5IWG+JCqNhq3UmGlXUDlroL7iG?= =?us-ascii?Q?u3qsI16JiJeyzkm3Ob6Xz+y7cW+JdaO70a5BmskNSOjJe/jty94mQOoAjg9K?= =?us-ascii?Q?AKfgCoNxmfyJc42+cWRt9lcIgsvjjBI8ETuQhs+7Y4i8JdIQfpAWz8sr7kjw?= =?us-ascii?Q?HKiRnSfMqXGxfmxsK9wf3pt1cmWFVHLH1etNuwbzgYqxnGz2+7uSbNTERLxq?= =?us-ascii?Q?S6MMKgIx29j2GjTnajfF/xZCrsUfaxA6aXobQ8Nxa/2bvYOWZtk6TfbkPPc5?= =?us-ascii?Q?0G3AH1eSQjV7ZfqhX8qFrRrs4EUaGLopyXQtODrGBuS2fmwLvwwtmv3y2+gr?= =?us-ascii?Q?bKwf/ShhZ3MKfdvbuLoCtQguVJNvVRDgJuhXpjSAcIq0GFjo5NxvvcGhiPP/?= =?us-ascii?Q?xtIMNZuCm1bZ0kArYVWDLV96HI6qPOCe45TcBHDgtJN5A2ropPXacea8HsCj?= =?us-ascii?Q?A2wbtXwNmJWmUEqoB/zBW+N5a9PTglv1UnlpCXEgESgF9HwuuO2sS6lI3X0Y?= =?us-ascii?Q?LBtB7va54BxPnlhF/QR+1DCuiWN+djhFqSvF9i6BcRhbH5Ll0E07aX8ULpZA?= =?us-ascii?Q?Tf8gDvLs2Ufu3MPRq92up4EHvU8CAAR182iZl1eaw9QcZVz6/jr9LF1gKLwk?= =?us-ascii?Q?SuBZd4XYtQeFwuVMpNdDI+Y=3D?= X-OriginatorOrg: bp.renesas.com X-MS-Exchange-CrossTenant-Network-Message-Id: 0fb3ed53-a301-45f0-2fdb-08dd8f064fb4 X-MS-Exchange-CrossTenant-AuthSource: TY4PR01MB13945.jpnprd01.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 May 2025 14:32:23.0707 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 53d82571-da19-47e4-9cb4-625a166a4a2a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: IGHbnk0ofzt9R6ZPBI6QSTrcqDq6eAf0CuX5bP6QW139IGsVZhYyLXt5ivdpK3moEuTdhDVuL9JfkFZWFnPm38OwHWuunVtR6xTr2gK17kfnF/O1lFvds71lPaJUanGr X-MS-Exchange-Transport-CrossTenantHeadersStamped: TY4PR01MB14973 +cc linux-renesas-soc On Fri, May 09, 2025 at 04:17:34PM +0200, Tommaso Merciai wrote: > Hi Daniel, > Thanks for your patch. > > On Tue, May 06, 2025 at 01:50:12PM +0100, Daniel Scally wrote: > > From: Daniel Scally > > > > The rzg2l_csi2_calc_mbps() function currently tries to calculate the > > link frequency for a CSI2 bus using the V4L2_CID_PIXEL_RATE control > > of the remote subdevice. Switch the function to v4l2_get_link_freq() > > which correctly targets V4L2_CID_LINK_FREQ before falling back on > > V4L2_CID_PIXEL_RATE if the former is unavailable. > > > > Reviewed-by: Jacopo Mondi > > Reviewed-by: Laurent Pinchart > > Reviewed-by: Lad Prabhakar > > Tested-by: Lad Prabhakar > > Signed-off-by: Daniel Scally > > --- > > Changes in v4: > > > > - Used separate s64 variable as return value for v4l2_get_link_freq() > > and as the mbps variable for do_div() to avoid compilation warnings. > > > > Changes in v3: > > > > - Fixed mbps sign > > > > Changes in v2: > > > > - None > > > > .../platform/renesas/rzg2l-cru/rzg2l-csi2.c | 27 +++++++++---------- > > 1 file changed, 12 insertions(+), 15 deletions(-) > > > > diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c > > index 9243306e2aa9..8870c2cb8104 100644 > > --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c > > +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c > > @@ -282,28 +282,25 @@ static int rzg2l_csi2_calc_mbps(struct rzg2l_csi2 *csi2) > > const struct rzg2l_csi2_format *format; > > const struct v4l2_mbus_framefmt *fmt; > > struct v4l2_subdev_state *state; > > - struct v4l2_ctrl *ctrl; > > u64 mbps; > > - > > - /* Read the pixel rate control from remote. */ > > - ctrl = v4l2_ctrl_find(source->ctrl_handler, V4L2_CID_PIXEL_RATE); > > - if (!ctrl) { > > - dev_err(csi2->dev, "no pixel rate control in subdev %s\n", > > - source->name); > > - return -EINVAL; > > - } > > + s64 ret; > > > > state = v4l2_subdev_lock_and_get_active_state(&csi2->subdev); > > fmt = v4l2_subdev_state_get_format(state, RZG2L_CSI2_SINK); > > format = rzg2l_csi2_code_to_fmt(fmt->code); > > v4l2_subdev_unlock_state(state); > > > > - /* > > - * Calculate hsfreq in Mbps > > - * hsfreq = (pixel_rate * bits_per_sample) / number_of_lanes > > - */ > > - mbps = v4l2_ctrl_g_ctrl_int64(ctrl) * format->bpp; > > - do_div(mbps, csi2->lanes * 1000000); > > + /* Read the link frequency from remote subdevice. */ > > + ret = v4l2_get_link_freq(source->ctrl_handler, format->bpp, > > + csi2->lanes); > > + if (ret < 0) { > > + dev_err(csi2->dev, "can't retrieve link freq from subdev %s\n", > > + source->name); > > + return -EINVAL; > > + } > > + > > + mbps = ret; > > + do_div(mbps, 1000000); > > > > return mbps; > > } > > I tested this series with an imx219 image sensor connected to the CSI-2 > RX IP of RZ/G3E: > > Some notes: > > - pixel_rate = link_freq * 2 * nr_of_lanes / bits_per_sample > - hsfreq = (pixel_rate * bits_per_sample) / number_of_lanes > > Then hsfreq should be: > > - hsfreq = link_freq * 2 > > Please correct me if I'm wrong. > > > After applying this series. I'm getting the following issue testing the > imx219 sensor with SRGGB8_1X8 and SGRBG10_1X10 color format. > > > [ 947.305876] rzg2l-cru 16000000.video: Invalid MB address 0xe8bf8300 (out of range) > [ 947.305876] rzg2l-cru 16000000.video: Invalid MB address 0xe8bf8300 (out of range) > [ 947.339165] rzg2l-cru 16000000.video: Invalid MB address 0xe8c9e900 (out of range) > [ 947.339165] rzg2l-cru 16000000.video: Invalid MB address 0xe8c9e900 (out of range) > > > I'm suspecting that this could be related to this formula. > Let me know what do you think. > > Thanks in advance! > > Tested using: > > root@smarc-rzg3e:~# media-ctl -p > Media controller API version 6.15.0 > > Media device information > ------------------------ > driver rzg2l_cru > model renesas,r9a09g047-cru > serial > bus info platform:16000000.video > hw revision 0x0 > driver version 6.15.0 > > Device topology > - entity 1: csi-16000400.csi2 (2 pads, 2 links, 0 routes) > type V4L2 subdev subtype Unknown flags 0 > device node name /dev/v4l-subdev0 > pad0: Sink > [stream:0 fmt:SGRBG10_1X10/640x480 field:none] > <- "imx219 0-0010":0 [ENABLED,IMMUTABLE] > pad1: Source > [stream:0 fmt:SGRBG10_1X10/640x480 field:none] > -> "cru-ip-16000000.video":0 [ENABLED,IMMUTABLE] > > - entity 4: cru-ip-16000000.video (2 pads, 2 links, 0 routes) > type V4L2 subdev subtype Unknown flags 0 > device node name /dev/v4l-subdev1 > pad0: Sink > [stream:0 fmt:SGRBG10_1X10/640x480 field:none] > <- "csi-16000400.csi2":1 [ENABLED,IMMUTABLE] > pad1: Source > [stream:0 fmt:SGRBG10_1X10/640x480 field:none] > -> "CRU output":0 [ENABLED,IMMUTABLE] > > - entity 7: imx219 0-0010 (1 pad, 1 link, 0 routes) > type V4L2 subdev subtype Sensor flags 0 > device node name /dev/v4l-subdev2 > pad0: Source > [stream:0 fmt:SGRBG10_1X10/640x480 field:none colorspace:raw xfer:none ycbcr:601 quantization:full-range > crop.bounds:(8,8)/3280x2464 > crop:(1008,760)/1280x960] > -> "csi-16000400.csi2":0 [ENABLED,IMMUTABLE] > > - entity 17: CRU output (1 pad, 1 link) > type Node subtype V4L flags 0 > device node name /dev/video0 > pad0: Sink > <- "cru-ip-16000000.video":1 [ENABLED,IMMUTABLE] > > # IMX219 TESTING SGRBG10_1X10 > v4l2-ctl -c horizontal_flip=1 -d /dev/v4l-subdev2 > > media-ctl -d /dev/media0 --set-v4l2 '"imx219 0-0010":0[fmt:SGRBG10_1X10/640x480]' > media-ctl -d /dev/media0 --set-v4l2 '"csi-16000400.csi2":0[fmt:SGRBG10_1X10/640x480]' > media-ctl -d /dev/media0 --set-v4l2 '"cru-ip-16000000.video":0[fmt:SGRBG10_1X10/640x480]' > > v4l2-ctl -d0 --set-fmt-video pixelformat=CR10,width=640,height=480 > v4l2-ctl -d0 --stream-mmap --stream-count=100 > > > # IMX219 TESTING SRGGB8_1X8 > media-ctl -d /dev/media0 --set-v4l2 '"imx219 0-0010":0[fmt:SRGGB8_1X8/1920x1080]' > media-ctl -d /dev/media0 --set-v4l2 '"csi-16000400.csi2":0[fmt:SRGGB8_1X8/1920x1080]' > media-ctl -d /dev/media0 --set-v4l2 '"cru-ip-16000000.video":0[fmt:SRGGB8_1X8/1920x1080]' > > > v4l2-ctl -d0 --set-fmt-video pixelformat=RGGB,width=1920,height=1080 > v4l2-ctl -d0 --stream-mmap --stream-count=32 > > Thanks & Regards, > Tommaso > > > -- > > 2.34.1 > > >