On Mon, Oct 8, 2012 at 7:04 AM, Gaëtan Carlier <gcembed@xxxxxxxxx> wrote:
>
> This patch does not apply on linux-next-20121008. I suppose that linux-media
> development branch is needed. How can I put linux-media branch on top of
Ok, I have just rebased it against linux-next-20121008. See below.
It allows ov2640 to probe correctly. However, it does not work with
Gstreamer anymore (Friday's linux-next allowed to get the Gstreamer
pipeline to work).
$ gst-launch v4l2src ! fbdevsink
Setting pipeline to PAUSED ...mx2-camera mx2-camera.0: Camera driver
attached to camera 0
mx2-camera mx2-camera.0: Camera driver detached from camera 0
ERROR: Pipeline doesn't want to pause.
ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Failed
to query norm on device '/dev/video0'.
Additional debug info:
v4l2_calls.c(213): gst_v4l2_fill_lists ():
/GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
Failed to get attributes for norm 0 on devide '/dev/video0'. (61 - No
data available)
Setting pipeline to NULL ...
Freeing pipeline ...
Does anyone have any ideas?
Thanks,
Fabio Estevam
---
drivers/media/platform/soc_camera/mx2_camera.c | 47 +++++++++++++++++-------
1 file changed, 34 insertions(+), 13 deletions(-)
diff --git a/drivers/media/platform/soc_camera/mx2_camera.c
b/drivers/media/platform/soc_camera/mx2_camera.c
index 403d7f1..9f8c5f0 100644
--- a/drivers/media/platform/soc_camera/mx2_camera.c
+++ b/drivers/media/platform/soc_camera/mx2_camera.c
@@ -272,7 +272,8 @@ struct mx2_camera_dev {
struct device *dev;
struct soc_camera_host soc_host;
struct soc_camera_device *icd;
- struct clk *clk_csi, *clk_emma_ahb, *clk_emma_ipg;
+ struct clk *clk_emma_ahb, *clk_emma_ipg;
+ struct clk *clk_csi_ahb, *clk_csi_per;
void __iomem *base_csi, *base_emma;
@@ -432,7 +433,8 @@ static void mx2_camera_deactivate(struct
mx2_camera_dev *pcdev)
{
unsigned long flags;
- clk_disable_unprepare(pcdev->clk_csi);
+ clk_disable_unprepare(pcdev->clk_csi_ahb);
+ clk_disable_unprepare(pcdev->clk_csi_per);
writel(0, pcdev->base_csi + CSICR1);
if (cpu_is_mx27()) {
writel(0, pcdev->base_emma + PRP_CNTL);
@@ -460,7 +462,11 @@ static int mx2_camera_add_device(struct
soc_camera_device *icd)
if (pcdev->icd)
return -EBUSY;
- ret = clk_prepare_enable(pcdev->clk_csi);
+ ret = clk_prepare_enable(pcdev->clk_csi_ahb);
+ if (ret < 0)
+ return ret;
+
+ ret = clk_prepare_enable(pcdev->clk_csi_per);
if (ret < 0)
return ret;
@@ -1725,11 +1731,18 @@ static int __devinit mx2_camera_probe(struct
platform_device *pdev)
goto exit;
}
- pcdev->clk_csi = devm_clk_get(&pdev->dev, "ahb");
- if (IS_ERR(pcdev->clk_csi)) {
- dev_err(&pdev->dev, "Could not get csi clock\n");
- err = PTR_ERR(pcdev->clk_csi);
- goto exit;
+ pcdev->clk_csi_ahb = devm_clk_get(&pdev->dev, "ahb");
+ if (IS_ERR(pcdev->clk_csi_ahb)) {
+ dev_err(&pdev->dev, "Could not get csi ahb clock\n");
+ err = PTR_ERR(pcdev->clk_csi_ahb);
+ goto exit;
+ }
+
+ pcdev->clk_csi_per = devm_clk_get(&pdev->dev, "per");
+ if (IS_ERR(pcdev->clk_csi_per)) {
+ dev_err(&pdev->dev, "Could not get csi per clock\n");
+ err = PTR_ERR(pcdev->clk_csi_per);
+ goto exit_csi_ahb;
}
pcdev->pdata = pdev->dev.platform_data;
@@ -1738,14 +1751,15 @@ static int __devinit mx2_camera_probe(struct
platform_device *pdev)
pcdev->platform_flags = pcdev->pdata->flags;
- rate = clk_round_rate(pcdev->clk_csi, pcdev->pdata->clk * 2);
+ rate = clk_round_rate(pcdev->clk_csi_per,
+ pcdev->pdata->clk * 2);
if (rate <= 0) {
err = -ENODEV;
- goto exit;
+ goto exit_csi_per;
}
- err = clk_set_rate(pcdev->clk_csi, rate);
+ err = clk_set_rate(pcdev->clk_csi_per, rate);
if (err < 0)
- goto exit;
+ goto exit_csi_per;
}
INIT_LIST_HEAD(&pcdev->capture);
@@ -1801,7 +1815,7 @@ static int __devinit mx2_camera_probe(struct
platform_device *pdev)
goto exit_free_emma;
dev_info(&pdev->dev, "MX2 Camera (CSI) driver probed, clock frequency: %ld\n",
- clk_get_rate(pcdev->clk_csi));
+ clk_get_rate(pcdev->clk_csi_per));
return 0;
@@ -1812,6 +1826,10 @@ eallocctx:
clk_disable_unprepare(pcdev->clk_emma_ipg);
clk_disable_unprepare(pcdev->clk_emma_ahb);
}
+exit_csi_per:
+ clk_disable_unprepare(pcdev->clk_csi_per);
+exit_csi_ahb:
+ clk_disable_unprepare(pcdev->clk_csi_ahb);
exit:
return err;
}
@@ -1831,6 +1849,9 @@ static int __devexit mx2_camera_remove(struct
platform_device *pdev)
clk_disable_unprepare(pcdev->clk_emma_ahb);
}
+ clk_disable_unprepare(pcdev->clk_csi_per);
+ clk_disable_unprepare(pcdev->clk_csi_ahb);
+
dev_info(&pdev->dev, "MX2 Camera driver unloaded\n");
return 0;
--
1.7.9.5
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