| Subject | Re: [PATCH v5 00/39] i.MX Media Driver | From | Steve Longerbeam <> | Date | Sat, 11 Mar 2017 16:30:53 -0800 |
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On 03/10/2017 12:13 PM, Russell King - ARM Linux wrote: > Version 5 gives me no v4l2 controls exposed through the video device > interface. > > Just like with version 4, version 5 is completely useless with IMX219: > > imx6-mipi-csi2: LP-11 timeout, phy_state = 0x00000200 > ipu1_csi0: pipeline start failed with -110 > imx6-mipi-csi2: LP-11 timeout, phy_state = 0x00000200 > ipu1_csi0: pipeline start failed with -110 > imx6-mipi-csi2: LP-11 timeout, phy_state = 0x00000200 > ipu1_csi0: pipeline start failed with -110 >
If it's too difficult to get the imx219 csi-2 transmitter into the LP-11 state on power on, perhaps the csi-2 receiver can be a little more lenient on the transmitter and make the LP-11 timeout a warning instead of error-out.
Can you try the attached change on top of the version 5 patchset?
If that doesn't work then you're just going to have to fix the bug in imx219.
Steve diff --git a/drivers/staging/media/imx/imx6-mipi-csi2.c b/drivers/staging/media/imx/imx6-mipi-csi2.c index d8f931e..720bf4d 100644 --- a/drivers/staging/media/imx/imx6-mipi-csi2.c +++ b/drivers/staging/media/imx/imx6-mipi-csi2.c @@ -224,11 +224,8 @@ static int csi2_dphy_wait_stopstate(struct csi2_dev *csi2) ret = readl_poll_timeout(csi2->base + CSI2_PHY_STATE, reg, (reg & mask) == mask, 0, 500000); - if (ret) { - v4l2_err(&csi2->sd, "LP-11 timeout, phy_state = 0x%08x\n", reg); - return ret; - } - + if (ret) + v4l2_warn(&csi2->sd, "LP-11 timeout, phy_state = 0x%08x\n", reg); return 0; }
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