From: Wolfram Sang <wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org>
To: Boris Brezillon
<boris.brezillon-LDxbnhwyfcJBDgjK7y7TUQ@public.gmane.org>
Cc: Scott Branden <sbranden-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>,
Ray Jui <rjui-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>,
Lee Jones <lee-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
bcm-kernel-feedback-list-dY08KVG/lbpWk0Htik3J/w@public.gmane.org,
linux-rpi-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH] i2c: bcm2835: Set up the rising/falling edge delays
Date: Wed, 21 Feb 2018 09:42:59 +0100 [thread overview]
Message-ID: <20180221084259.o6754bfe4k2hcwhj@ninjato> (raw)
In-Reply-To: <20180208135405.25446-1-boris.brezillon-LDxbnhwyfcJBDgjK7y7TUQ@public.gmane.org>
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On Thu, Feb 08, 2018 at 02:54:05PM +0100, Boris Brezillon wrote:
> From: Eric Anholt <eric-WhKQ6XTQaPysTnJN9+BGXg@public.gmane.org>
>
> We were leaving them in the power on state (or the state the firmware
> had set up for some client, if we were taking over from them). The
> boot state was 30 core clocks, when we actually want to sample some
> time after (to make sure that the new input bit has actually arrived).
>
> Signed-off-by: Eric Anholt <eric-WhKQ6XTQaPysTnJN9+BGXg@public.gmane.org>
> Signed-off-by: Boris Brezillon <boris.brezillon-LDxbnhwyfcJBDgjK7y7TUQ@public.gmane.org>
> Cc: Gerd Hoffmann <kraxel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> ---
> Hello,
>
> I'm reviving this patch that has been posted a while ago by Gerd.
> It fixes EDID retrieval on some (broken?) HDMI displays, but I'm pretty
> sure it will fix other I2C setup.
>
> Note that I also tested the change with a regular I2C device and it
> worked just fine.
Applied to for-current, thanks!
Could you provide a Fixes tag if you think this should go to stable?
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next prev parent reply other threads:[~2018-02-21 8:42 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-08 13:54 [PATCH] i2c: bcm2835: Set up the rising/falling edge delays Boris Brezillon
[not found] ` <20180208135405.25446-1-boris.brezillon-LDxbnhwyfcJBDgjK7y7TUQ@public.gmane.org>
2018-02-21 8:42 ` Wolfram Sang [this message]
2018-02-21 22:03 ` Eric Anholt
[not found] ` <87h8qayp8v.fsf-WhKQ6XTQaPysTnJN9+BGXg@public.gmane.org>
2018-02-22 11:21 ` Wolfram Sang
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