linux-kernel - omap3isp: is capture mode working? what hardware? was Re: v4l2-fwnode: status, plans for merge, any branch to merge against?

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Message-ID: <20170712203105.GA26734@amd>
Date:   Wed, 12 Jul 2017 22:31:05 +0200
From:   Pavel Machek <pavel@....cz>
To:     Sakari Ailus <sakari.ailus@....fi>
Cc:     Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        mchehab@...nel.org, kernel list <linux-kernel@...r.kernel.org>,
        ivo.g.dimitrov.75@...il.com, sre@...nel.org, pali.rohar@...il.com,
        linux-media@...r.kernel.org
Subject: omap3isp: is capture mode working? what hardware? was Re:
 v4l2-fwnode: status, plans for merge, any branch to merge against?

Hi!

> What I've done is just rebased the ccp2 branch. In other words, the patches
> in that branch are no more ready than they were.
> 
> To get these merged we should ideally
> 
> 1) Make sure there will be no regressions,

I grepped dts trees a bit... where is omap3isp currently used?
Anything besides N9 and N950?

Does the capture mode currently work for you?

Because as far as I can tell, formatter is disabled, so video is in
wrong format for the userspace.

So something like patch below is needed; (of course after adjusting
the comment etc.)

Thanks,
								Pavel

commit eb81524b8b44bbff2518b272cb3de304157bd3ba
Author: Pavel <pavel@....cz>
Date:   Mon Feb 13 21:26:51 2017 +0100

    omap3isp: fix VP2SDR bit so capture (not preview) works
    
    This is neccessary for capture (not preview) to work properly on
    N900. Why is unknown.

diff --git a/drivers/media/platform/omap3isp/ispccdc.c b/drivers/media/platform/omap3isp/ispccdc.c
index 7207558..2fb755f 100644
--- a/drivers/media/platform/omap3isp/ispccdc.c
+++ b/drivers/media/platform/omap3isp/ispccdc.c
@@ -1186,7 +1186,8 @@ static void ccdc_configure(struct isp_ccdc_device *ccdc)
 	/* Use the raw, unprocessed data when writing to memory. The H3A and
 	 * histogram modules are still fed with lens shading corrected data.
 	 */
-	syn_mode &= ~ISPCCDC_SYN_MODE_VP2SDR;
+//	syn_mode &= ~ISPCCDC_SYN_MODE_VP2SDR;
+	syn_mode |= ISPCCDC_SYN_MODE_VP2SDR;
 
 	if (ccdc->output & CCDC_OUTPUT_MEMORY)
 		syn_mode |= ISPCCDC_SYN_MODE_WEN;

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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