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On Wed, Jan 02, 2019 at 04:23:15PM +0530, Souptick Joarder wrote:
> On Mon, Dec 24, 2018 at 6:53 PM Souptick Joarder wrote:
> >
> > Convert to use vm_insert_range to map range of kernel memory
> > to user vma.
> >
> > Signed-off-by: Souptick Joarder
> > Reviewed-by: Matthew Wilcox
> > Acked-by:
Having discussed with Matthew offlist, I think we've come to the
following conclusion - there's a number of drivers that buggily
ignore vm_pgoff.
So, what I proposed is:
static int __vm_insert_range(struct vm_struct *vma, struct page *pages,
size_t num, unsigned long
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On Thu, Apr 26, 2018 at 02:09:42AM -0700, Christoph Hellwig wrote:
> synopsis:
>
> drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c:pdevinfo.dma_mask
> = DMA_BIT_MASK(32);
> drivers/gpu/drm/bridge/synopsys/dw-hdmi.c: pdevinfo.dma_mask =
On Wed, Apr 25, 2018 at 11:35:13PM +0200, Daniel Vetter wrote:
> On arm that doesn't work. The iommu api seems like a good fit, except
> the dma-api tends to get in the way a bit (drm/msm apparently has
> similar problems like tegra), and if you need contiguous memory
> dma_alloc_coherent is the on
On Wed, Apr 25, 2018 at 08:33:12AM -0700, Christoph Hellwig wrote:
> On Wed, Apr 25, 2018 at 12:04:29PM +0200, Daniel Vetter wrote:
> > - dma api hides the cache flushing requirements from us. GPUs love
> > non-snooped access, and worse give userspace control over that. We want
> > a strict sep
On Wed, Apr 25, 2018 at 01:54:39AM -0700, Christoph Hellwig wrote:
> [discussion about this patch, which should have been cced to the iommu
> and linux-arm-kernel lists, but wasn't:
> https://www.spinics.net/lists/dri-devel/msg173630.html]
>
> On Wed, Apr 25, 2018 at 09:41
On Tue, Apr 24, 2018 at 11:29:42AM +0200, Hans Verkuil wrote:
> On 04/09/18 14:15, Russell King - ARM Linux wrote:
> > Hi,
> >
> > This patch series adds CEC support to the DRM TDA998x driver. The
> > TDA998x family of devices integrate a TDA9950 CEC at a separate I2
On Fri, Apr 20, 2018 at 05:48:12PM +0200, Hans Verkuil wrote:
> On 04/20/2018 05:31 PM, Russell King - ARM Linux wrote:
> > Hi Hans,
> >
> > Any comments?
>
> I have been traveling and haven't had time to look at this. Next week will
> be busy as well, but I
Makefile | 1 +
> drivers/gpu/drm/i2c/tda9950.c | 509
> ++
> include/linux/platform_data/tda9950.h | 16 ++
> 4 files changed, 531 insertions(+)
> create mode 100644 drivers/gpu/drm/i2c/tda9950.c
> create mode 100644 include/l
+
drivers/gpu/drm/i2c/tda998x_drv.c | 242 --
include/linux/platform_data/tda9950.h | 16 +
6 files changed, 750 insertions(+), 27 deletions(-)
create mode 100644 drivers/gpu/drm/i2c/tda9950.c
create mode 100644 include/linux/platform_data/tda9950.h
v3
n for reviewing these patches is the 'hygiene'
> argument. When a patch refers to hygiene it is concerned with stopping
> speculation on an unconstrained or insufficiently constrained pointer
> value under userspace control. That by itself is not sufficient for
> attack (per cu
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On Sat, Oct 14, 2017 at 12:53:35AM +0200, Pierre-Hugues Husson wrote:
> @@ -2382,6 +2383,18 @@ __dw_hdmi_probe(struct platform_device *pdev,
> goto err_isfr;
> }
>
> + hdmi->cec_clk = devm_clk_get(hdmi->dev, "cec");
> + if (IS_ERR(hdmi->cec_clk)) {
> + hdmi
On Tue, Oct 17, 2017 at 03:26:19PM +0200, Krzysztof Hałasa wrote:
> Fabio Estevam writes:
>
> >> --- a/drivers/staging/media/imx/imx-media-csi.c
> >> +++ b/drivers/staging/media/imx/imx-media-csi.c
> >> @@ -340,7 +340,7 @@ static int csi_idmac_setup_channel(struct csi_priv
> >> *priv)
> >>
On Thu, Oct 12, 2017 at 12:06:33AM +0100, Russell King - ARM Linux wrote:
> Now, if you mean "known" to be equivalent with "recognised by
> imx-media" then, as I've pointed out several times already, that
> statement is FALSE. I'm not sure how many times
On Wed, Oct 11, 2017 at 03:14:26PM -0700, Steve Longerbeam wrote:
>
>
> On 10/11/2017 02:49 PM, Russell King - ARM Linux wrote:
> >On Tue, Oct 03, 2017 at 12:09:13PM -0700, Steve Longerbeam wrote:
> >>imx_media_link_notify() should not return error if the source subdevi
On Tue, Oct 03, 2017 at 12:09:13PM -0700, Steve Longerbeam wrote:
> imx_media_link_notify() should not return error if the source subdevice
> is not recognized by imx-media, that isn't an error. If the subdev has
> controls they will be inherited starting from a known subdev.
What does "a known su
On Mon, Oct 02, 2017 at 05:59:30PM -0700, Steve Longerbeam wrote:
>
>
> On 10/01/2017 04:36 PM, Russell King - ARM Linux wrote:
> >On Sun, Oct 01, 2017 at 01:16:53PM -0700, Steve Longerbeam wrote:
> >>Right, imx_media_add_vdev_to_pa() has followed a link to an
> >&g
Oh, I forgot to metion this patch depends on another patch here, part of
> the fwnode parsing patchset:
>
> http://www.spinics.net/lists/linux-media/msg122689.html>
Any chance of sending me that patch so I can test this patch? I'd
rather not manually de-html-ise the above pa
On Sun, Oct 01, 2017 at 01:16:53PM -0700, Steve Longerbeam wrote:
> Right, imx_media_add_vdev_to_pa() has followed a link to an
> entity that imx is not aware of.
>
> The only effect of this patch (besides allowing the driver to load
> with smiapp cameras), is that no controls from the unknown ent
On Thu, Jul 13, 2017 at 01:13:28PM +0200, Marek Szyprowski wrote:
> Hi Christoph,
>
> On 2017-07-05 19:33, Christoph Hellwig wrote:
> >On Mon, Jul 03, 2017 at 11:27:32AM +0200, Marek Szyprowski wrote:
> >>The main question here if we want to merge incomplete solution or not. As
> >>for now, there
On Wed, Apr 26, 2017 at 06:43:54PM +0300, Ivaylo Dimitrov wrote:
> >+static int get_luminosity_bayer10(uint16_t *buf, const struct v4l2_format
> >*fmt)
> >+{
> >+long long avg_lum = 0;
> >+int x, y;
> >+
> >+buf += fmt->fmt.pix.height * fmt->fmt.pix.bytesperline / 4 +
> >+
On Sun, Apr 16, 2017 at 07:10:21PM -0600, Shuah Khan wrote:
> On 04/14/2017 03:46 AM, Russell King - ARM Linux wrote:
> > On Fri, Apr 14, 2017 at 09:56:07AM +0200, Marek Szyprowski wrote:
> >>>> This would be however quite large task, especially taking into account
> &g
On Fri, Apr 14, 2017 at 09:56:07AM +0200, Marek Szyprowski wrote:
> >>This would be however quite large task, especially taking into account
> >>all current users of DMA-buf framework...
> >Yeah it will be a large task.
>
> Maybe once scatterlist are switched to pfns, changing dmabuf internal
> me
On Thu, Apr 06, 2017 at 05:01:52PM +0200, Philipp Zabel wrote:
> On Thu, 2017-04-06 at 15:05 +0100, Russell King - ARM Linux wrote:
> > On Thu, Apr 06, 2017 at 03:55:29PM +0200, Philipp Zabel wrote:
> > > +
> > > + /* Retain current field setting as default */
> &g
On Thu, Apr 06, 2017 at 04:20:21PM +0200, Hans Verkuil wrote:
> On 04/06/2017 03:55 PM, Philipp Zabel wrote:
> > If the the field order is set to ANY in set_fmt, choose the currently
> > set field order. If the colorspace is set to DEFAULT, choose the current
> > colorspace. If any of xfer_func, y
On Thu, Apr 06, 2017 at 03:55:29PM +0200, Philipp Zabel wrote:
> +
> + /* Retain current field setting as default */
> + if (sdformat->format.field == V4L2_FIELD_ANY)
> + sdformat->format.field = fmt->field;
> +
> + /* Retain current colorspace setting as default */
> +
On Wed, Apr 05, 2017 at 10:02:42AM -0600, Shuah Khan wrote:
> When coherent DMA memory without struct page is shared, importer
> fails to find the page and runs into kernel page fault when it
> tries to dmabuf_ops_attach/map_sg/map_page the invalid page found
> in the sg_table. Please see www.spini
On Tue, Apr 04, 2017 at 05:44:05PM -0700, Steve Longerbeam wrote:
>
>
> On 04/04/2017 05:40 PM, Steve Longerbeam wrote:
> >
> >
> >On 04/04/2017 04:10 PM, Russell King - ARM Linux wrote:
> >>On Thu, Mar 30, 2017 at 07:25:49PM +0200, Philipp Zabel wrote:
&g
On Thu, Mar 30, 2017 at 07:25:49PM +0200, Philipp Zabel wrote:
> The TVP5150 DT bindings specify a single output port (port 0) that
> corresponds to the video output pad (pad 1, DEMOD_PAD_VID_OUT).
>
> Signed-off-by: Philipp Zabel
> ---
> I'm trying to get this to work with a TVP5150 analog TV de
On Tue, Apr 04, 2017 at 05:10:05PM +0100, Lee Jones wrote:
> @@ -237,7 +241,6 @@ struct cec_adapter *cec_allocate_adapter(const struct
> cec_adap_ops *ops,
> if (!(caps & CEC_CAP_RC))
> return adap;
>
> -#if IS_REACHABLE(CONFIG_RC_CORE)
> /* Prepare the RC input device
On Tue, Apr 04, 2017 at 04:19:39PM +0100, Lee Jones wrote:
> On Tue, 04 Apr 2017, Hans Verkuil wrote:
>
> > On 04/04/2017 04:43 PM, Lee Jones wrote:
> > > If a user specifies the use of RC as a capability, they should
> > > really be enabling RC Core code. If they do not we WARN() them
> > > of t
On Mon, Apr 03, 2017 at 09:07:43AM -0500, Rob Herring wrote:
> On Tue, Mar 28, 2017 at 05:35:52PM -0700, Steve Longerbeam wrote:
> > I assume if there's another binding doc in progress, it means
> > someone is working on another Synopsys DW CSI-2 subdevice driver.
>
> Yes. see http://patchwork.ozl
On Mon, Apr 03, 2017 at 09:11:35AM -0500, Rob Herring wrote:
> On Wed, Mar 29, 2017 at 09:39:05AM +0100, Russell King - ARM Linux wrote:
> > On Tue, Mar 28, 2017 at 07:21:34PM -0500, Rob Herring wrote:
> > > On Mon, Mar 27, 2017 at 7:40 PM, Steve Longerbeam
> > >
On Sat, Apr 01, 2017 at 11:22:03AM +0200, Hans Verkuil wrote:
> On 31/03/17 22:46, Russell King - ARM Linux wrote:
> > On Fri, Mar 31, 2017 at 02:20:27PM +0200, Hans Verkuil wrote:
> >> +struct cec_notifier *cec_notifier_get(struct device *dev)
> >> +{
>
On Fri, Mar 31, 2017 at 02:20:27PM +0200, Hans Verkuil wrote:
> +struct cec_notifier *cec_notifier_get(struct device *dev)
> +{
> + struct cec_notifier *n;
> +
> + mutex_lock(&cec_notifiers_lock);
> + list_for_each_entry(n, &cec_notifiers, head) {
> + if (n->dev == dev) {
>
On Fri, Mar 31, 2017 at 03:39:20PM +0100, Russell King - ARM Linux wrote:
> On Fri, Mar 31, 2017 at 02:20:26PM +0200, Hans Verkuil wrote:
> > Comments are welcome. I'd like to get this in for the 4.12 kernel as
> > this is a missing piece needed to integrate CEC drivers.
&g
On Fri, Mar 31, 2017 at 02:20:26PM +0200, Hans Verkuil wrote:
> Comments are welcome. I'd like to get this in for the 4.12 kernel as
> this is a missing piece needed to integrate CEC drivers.
First two patches seem fine, and work with dw-hdmi.
I'll hold dw-hdmi off until after 4.11 - I currently
On Wed, Mar 29, 2017 at 04:15:36PM +0200, Hans Verkuil wrote:
> + cec_notifier_set_phys_addr(hdata->notifier,
> +cec_get_edid_phys_addr(edid));
This pattern causes problems - can we have the notifier taking the EDID
please, and stubs in cec-notifier.h to stub th
On Thu, Mar 30, 2017 at 09:12:29AM -0700, Steve Longerbeam wrote:
>
>
> On 03/30/2017 04:02 AM, Russell King - ARM Linux wrote:
> >This fails at step 1. The removal of the frame interval support now
> >means my setup script fails when trying to set the frame inte
This fails at step 1. The removal of the frame interval support now
means my setup script fails when trying to set the frame interval on
the camera:
Enumerating pads and links
Setting up format SRGGB8_1X8 816x616 on pad imx219 0-0010/0
Format set: SRGGB8_1X8 816x616
Setting up frame interval 1/25
On Tue, Mar 28, 2017 at 07:21:34PM -0500, Rob Herring wrote:
> On Mon, Mar 27, 2017 at 7:40 PM, Steve Longerbeam
> wrote:
> > Add bindings documentation for the i.MX media driver.
> >
> > Signed-off-by: Steve Longerbeam
> > ---
> > Documentation/devicetree/bindings/media/imx.txt | 74
> > +
On Tue, Mar 21, 2017 at 11:59:02AM +0100, Hans Verkuil wrote:
> Ah, good to hear that -s works with MC. I was not sure about that.
> Thanks for the feedback!
Not soo good on iMX6:
$ v4l2-compliance -d /dev/video10 -s --expbuf-device=/dev/video0
...
Input ioctls:
test VIDIOC_G/S_TUNER/ENUM
On Mon, Mar 20, 2017 at 06:23:24PM +0100, Philipp Zabel wrote:
> @@ -1173,15 +1196,8 @@ static void csi_try_fmt(struct csi_priv *priv,
> incc = imx_media_find_mbus_format(infmt->code,
> CS_SEL_ANY, true);
>
> - if (sdformat
On Mon, Mar 20, 2017 at 06:23:24PM +0100, Philipp Zabel wrote:
> --8<--
> >From 2830aebc404bdfc9d7fc1ec94e5282d0b668e8f6 Mon Sep 17 00:00:00 2001
> From: Philipp Zabel
> Date: Mon, 20 Mar 2017 17:10:21 +0100
> Subject: [PATCH] media: imx: csi: add sink selection rectangles
>
> Mov
On Mon, Mar 20, 2017 at 06:40:21PM +0100, Philipp Zabel wrote:
> On Mon, 2017-03-20 at 14:17 +, Russell King - ARM Linux wrote:
> > I have tripped over a bug in media-ctl when specifying both a crop and
> > compose rectangle - the --help output suggests that "," shoul
On Mon, Mar 20, 2017 at 02:17:05PM +, Russell King - ARM Linux wrote:
> On Mon, Mar 20, 2017 at 03:00:51PM +0100, Philipp Zabel wrote:
> > On Mon, 2017-03-20 at 12:08 +, Russell King - ARM Linux wrote:
> > > The same document says:
> > >
> > > Scaling
On Mon, Mar 20, 2017 at 05:29:07PM +0100, Philipp Zabel wrote:
> According to the documentation [1], you are doing the right thing:
>
> The struct v4l2_subdev_frame_interval pad references a non-existing
> pad, or the pad doesn’t support frame intervals.
>
> But v4l2_subdev_call returns -
On Mon, Mar 20, 2017 at 12:39:38PM -0300, Mauro Carvalho Chehab wrote:
> Em Mon, 20 Mar 2017 14:24:25 +0100
> Hans Verkuil escreveu:
> > I don't think this control inheritance patch will magically prevent you
> > from needed a plugin.
>
> Yeah, it is not just control inheritance. The driver needs
On Mon, Mar 20, 2017 at 02:20:16PM +0100, Philipp Zabel wrote:
> To set and read colorimetry information:
> https://patchwork.linuxtv.org/patch/39350/
Thanks, I've applied all four of your patches, but there's a side effect
from that. Old media-ctl (modified by me):
- entity 53: imx219 0-0010 (2
On Mon, Mar 20, 2017 at 02:26:16PM +, Russell King - ARM Linux wrote:
> On Mon, Jan 02, 2017 at 03:19:04PM +0100, Hans Verkuil wrote:
> > From: Hans Verkuil
> >
> > Add support for video hotplug detect and EDID/ELD notifiers, which is used
> > to convey inform
On Mon, Jan 02, 2017 at 03:19:04PM +0100, Hans Verkuil wrote:
> From: Hans Verkuil
>
> Add support for video hotplug detect and EDID/ELD notifiers, which is used
> to convey information from video drivers to their CEC and audio counterparts.
>
> Based on an earlier version from Russell King:
>
On Mon, Mar 20, 2017 at 03:00:51PM +0100, Philipp Zabel wrote:
> On Mon, 2017-03-20 at 12:08 +, Russell King - ARM Linux wrote:
> > The same document says:
> >
> > Scaling support is optional. When supported by a subdev, the crop
> > rectangle on the subdev&
On Mon, Mar 20, 2017 at 02:57:03PM +0100, Hans Verkuil wrote:
> On 03/20/2017 02:29 PM, Russell King - ARM Linux wrote:
> > It's what I have - remember, not everyone is happy to constantly replace
> > their distro packages with random new stuff.
>
> This is a
On Mon, Mar 20, 2017 at 02:01:58PM +0100, Hans Verkuil wrote:
> On 03/19/2017 06:54 PM, Steve Longerbeam wrote:
> >
> >
> > On 03/19/2017 03:38 AM, Russell King - ARM Linux wrote:
> >> What did you do with:
> >>
> >> ioctl(3, VIDIOC_REQBUFS, {count
On Mon, Mar 20, 2017 at 12:55:26PM +0100, Philipp Zabel wrote:
> The above paragraph suggests we skip any rectangles that are not
> supported. In our case that would be 3. and 4., since the CSI can't
> compose into a larger frame. I hadn't realised that the crop selection
> currently happens on the
On Mon, Mar 20, 2017 at 10:23:30AM +0100, Philippe De Muyter wrote:
> So existing gstreamer applications using /dev/video* to control framerate,
> and even gain and exposure won't work anymore :( ?
>
> I had hoped to keep compatibility, with added robustness and functionality.
>
> I seems like I'
On Mon, Mar 20, 2017 at 09:55:12AM +0100, Philippe De Muyter wrote:
> Hi Russel,
>
> On Sun, Mar 19, 2017 at 10:49:08AM +, Russell King wrote:
> > Add support for enumerating frame sizes and frame intervals from the
> > first subdev via the V4L2 interfaces.
> >
> > Signed-off-by: Russell King
On Sun, Mar 19, 2017 at 03:21:37PM -0700, Steve Longerbeam wrote:
>
>
> On 03/19/2017 03:49 AM, Russell King wrote:
> >Add support for enumerating frame sizes and frame intervals from the
> >first subdev via the V4L2 interfaces.
> >
> >Signed-off-by: Russell King
> >---
> > drivers/staging/medi
On Sun, Mar 19, 2017 at 11:37:15AM -0700, Steve Longerbeam wrote:
> On 03/19/2017 05:14 AM, Russell King - ARM Linux wrote:
> >Right now, CSI doesn't do that - it only looks at the width, height,
> >code, and field.
>
> Correct, there is currently no propagation of th
On Sun, Mar 19, 2017 at 10:54:22AM -0700, Steve Longerbeam wrote:
>
>
> On 03/19/2017 03:38 AM, Russell King - ARM Linux wrote:
> >On Sat, Mar 18, 2017 at 12:58:27PM -0700, Steve Longerbeam wrote:
> >>Right, imx-media-capture.c (the "standard" v4l2 user interfa
On Thu, Mar 09, 2017 at 08:53:18PM -0800, Steve Longerbeam wrote:
> From: Philipp Zabel
>
> The csi_try_crop call in set_fmt should compare the cropping rectangle
> to the currently set input format, not to the previous input format.
Are we really sure that the cropping support is implemented co
On Sun, Mar 19, 2017 at 05:00:08PM +0200, Vladimir Zapolskiy wrote:
> On 03/19/2017 04:22 PM, Russell King - ARM Linux wrote:
> > On Sun, Mar 19, 2017 at 02:21:10PM +, Russell King - ARM Linux wrote:
> >> There's a good reason why I dumped a full debug log using GST_DEBU
On Sun, Mar 19, 2017 at 10:33:25AM -0400, Nicolas Dufresne wrote:
> Le dimanche 19 mars 2017 à 00:54 +, Russell King - ARM Linux a
> écrit :
> > >
> > > In practice, I have the impression there is a fair reason why
> > > framerate
> > > enumeration is
On Sun, Mar 19, 2017 at 02:21:10PM +, Russell King - ARM Linux wrote:
> There's a good reason why I dumped a full debug log using GST_DEBUG=*:9,
> analysed it for the cause of the failure, and tried several different
> pipelines, including the standard bayer2rgb plugin.
>
>
On Sun, Mar 19, 2017 at 03:57:56PM +0200, Vladimir Zapolskiy wrote:
> Hi Russell,
>
> On 03/18/2017 10:43 PM, Russell King - ARM Linux wrote:
> > On Sat, Mar 18, 2017 at 12:58:27PM -0700, Steve Longerbeam wrote:
> >> Can you share your gstreamer
On Sat, Mar 18, 2017 at 12:58:27PM -0700, Steve Longerbeam wrote:
> On 03/18/2017 12:22 PM, Russell King - ARM Linux wrote:
> >0:00:01.955927879 20954 0x15ffe90 INFOv4l2
> >gstv4l2object.c:3811:gst_v4l2_object_get_caps: probed caps:
> >video/x-bayer
On Sat, Mar 18, 2017 at 12:58:27PM -0700, Steve Longerbeam wrote:
> Right, imx-media-capture.c (the "standard" v4l2 user interface module)
> is not implementing VIDIOC_ENUM_FRAMESIZES. It should, but it can only
> return the single frame size that the pipeline has configured (the mbus
> format of t
On Sat, Mar 18, 2017 at 08:41:14PM -0400, Nicolas Dufresne wrote:
> Along with the norm fallback, GStreamer could could also consider the
> currently set framerate as returned by VIDIOC_G_PARM. At the same time,
> implementing that enumeration shall be straightforward, and will make a
> large amoun
On Sat, Mar 18, 2017 at 08:41:14PM -0400, Nicolas Dufresne wrote:
> Le samedi 18 mars 2017 à 20:43 +, Russell King - ARM Linux a
> écrit :
> > On Sat, Mar 18, 2017 at 12:58:27PM -0700, Steve Longerbeam wrote:
> > > Can you share your gstreamer pip
On Sat, Mar 18, 2017 at 12:58:27PM -0700, Steve Longerbeam wrote:
> Can you share your gstreamer pipeline? For now, until
> VIDIOC_ENUM_FRAMESIZES is implemented, try a pipeline that
> does not attempt to specify a frame rate. I use the attached
> script for testing, which works for me.
It's nothi
Hi Steve,
I've just been trying to get gstreamer to capture and h264 encode
video from my camera at various frame rates, and what I've discovered
does not look good.
1) when setting frame rates, media-ctl _always_ calls
VIDIOC_SUBDEV_S_FRAME_INTERVAL with pad=0.
2) media-ctl never retrieves t
ecause
people then had to figure out which combination of controls had to be
set to get sound out of their systems.
Now it seems to be much better, where install Linux on a platform, and
you have a working sound system (assuming that the drivers are all there
which is generally the case for x86.)
H
On Fri, Mar 17, 2017 at 01:02:07PM +0100, Philipp Zabel wrote:
> I think most of the simple, fixed pipeline use cases could be handled by
> libv4l2, by allowing to pass a v4l2 subdevice path to v4l2_open. If that
> function internally would set up the media links to the
> nearest /dev/video interfa
On Tue, Mar 14, 2017 at 08:55:36AM +0100, Hans Verkuil wrote:
> We're all very driver-development-driven, and userspace gets very little
> attention in general. So before just throwing in the towel we should take
> a good look at the reasons why there has been little or no development: is
> it beca
On Tue, Mar 14, 2017 at 12:21:31PM -0400, Nicolas Dufresne wrote:
> My main concern here based on what I'm reading, is that this driver is
> not even able to notice immediately that a produced frame was corrupted
> (because it's out of sync). From usability perspective, this is really
> bad. Can't
On Mon, Mar 13, 2017 at 11:03:50PM +0200, Sakari Ailus wrote:
> Hi Steve,
>
> On Mon, Mar 13, 2017 at 11:06:22AM -0700, Steve Longerbeam wrote:
> > I'm kinda in the middle on this topic. I agree with Sakari that
> > frame rate can fluctuate, but that should only be temporary. If
> > the frame rate
On Mon, Mar 13, 2017 at 10:56:46PM +0200, Sakari Ailus wrote:
> Hi Russell,
>
> On Mon, Mar 13, 2017 at 01:27:02PM +, Russell King - ARM Linux wrote:
> > On Mon, Mar 13, 2017 at 03:16:48PM +0200, Sakari Ailus wrote:
> > > The vast majority of existing drivers do no
On Mon, Mar 13, 2017 at 03:16:48PM +0200, Sakari Ailus wrote:
> The vast majority of existing drivers do not implement them nor the user
> space expects having to set them. Making that mandatory would break existing
> user space.
>
> In addition, that does not belong to link validation either: lin
On Mon, Mar 13, 2017 at 08:42:15AM -0300, Mauro Carvalho Chehab wrote:
> I don't have myself any hardware with i.MX6. Yet, I believe that
> a low cost board like SolidRun Hummingboard - with comes with a
> CSI interface compatible with RPi camera modules - will likely
> attract users who need to r
be able to show the controls, because they're not visible at
the v4l2 capture device anymore. They're only visible through the
subdev interfaces, which these generic applications know nothing about.
> If you want to blame anyone for this, blame Nokia who set fire to
> their linux-based
On Mon, Mar 13, 2017 at 11:02:34AM +0100, Hans Verkuil wrote:
> On 03/11/2017 07:14 PM, Steve Longerbeam wrote:
> > The event must be user visible, otherwise the user has no indication
> > the error, and can't correct it by stream restart.
>
> In that case the driver can detect this and call vb2_q
On Mon, Mar 13, 2017 at 08:16:25AM +, Russell King - ARM Linux wrote:
> On Sun, Mar 12, 2017 at 09:26:41PM -0700, Steve Longerbeam wrote:
> > On 03/12/2017 01:22 PM, Russell King - ARM Linux wrote:
> > >What I had was this patch for your v3. I never got to testing your
>
On Sun, Mar 12, 2017 at 09:26:41PM -0700, Steve Longerbeam wrote:
> On 03/12/2017 01:22 PM, Russell King - ARM Linux wrote:
> >What I had was this patch for your v3. I never got to testing your
> >v4 because of the LP-11 problem.
> >
> >In v5, you've changed to p
On Sun, Mar 12, 2017 at 05:59:28PM -0300, Mauro Carvalho Chehab wrote:
> Yet, udev/systemd has some rules that provide an unique name for V4L
> devices at /lib/udev/rules.d/60-persistent-v4l.rules. Basically, it
> runs a small application (v4l_id) with creates a persistent symling
> using rules lik
On Sun, Mar 12, 2017 at 08:40:37PM +, Russell King - ARM Linux wrote:
> On Sun, Mar 12, 2017 at 01:36:32PM -0700, Steve Longerbeam wrote:
> > But hold on, if my logic is correct, then why did the CSI power-off
> > get reached in your case, multiple times? Yes I think
On Sun, Mar 12, 2017 at 01:36:32PM -0700, Steve Longerbeam wrote:
> But hold on, if my logic is correct, then why did the CSI power-off
> get reached in your case, multiple times? Yes I think there is a bug,
> link_notify() is not checking if the link has already been disabled.
> I will fix this. B
On Sun, Mar 12, 2017 at 01:05:06PM -0700, Steve Longerbeam wrote:
>
>
> On 03/12/2017 12:57 PM, Russell King - ARM Linux wrote:
> >On Sat, Mar 11, 2017 at 04:30:53PM -0800, Steve Longerbeam wrote:
> >>If it's too difficult to get the imx219 csi-2 transmitter into th
up failed: -22
ipu1_csi0: pipeline start failed with -22
[ cut here ]----
WARNING: CPU: 0 PID: 1860 at
/home/rmk/git/linux-rmk/drivers/media/v4l2-core/videobuf2-core.c:1340
vb2_start_streaming+0x124/0x1b4 [videobuf2_core]
--
RMK's Patch system: http://www.armlinux.org.u
Another issue.
The "reboot and the /dev/video* devices come up in a completely
different order" problem seems to exist with this version.
The dot graph I supplied previously had "ipu1_csi0 capture" on
/dev/video4. I've just rebooted, and now I find it's on
/dev/video2 instead.
Here's the extrac
On Sun, Mar 12, 2017 at 12:21:45PM -0700, Steve Longerbeam wrote:
> There's actually nothing preventing userland from disabling a link
> multiple times, and imx_media_link_notify() complies, and so
> csi_s_power(OFF) gets called multiple times, and so that WARN_ON()
> in there is silly, I borrowed
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