From: Vasily Khoruzhick <anarsoul-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Maxime Ripard <maxime.ripard-LDxbnhwyfcJBDgjK7y7TUQ@public.gmane.org>
Cc: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
David Airlie <airlied-cv59FeDIM0c@public.gmane.org>,
Daniel Vetter <daniel-/w4YWyX8dFk@public.gmane.org>,
Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
Thierry Reding
<thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Chen-Yu Tsai <wens-jdAy2FN1RRM@public.gmane.org>,
Archit Taneja <architt-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>,
Andrzej Hajda <a.hajda-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>,
Laurent Pinchart
<Laurent.pinchart-ryLnwIuWjnjg/C1BVhZhaw@public.gmane.org>,
Icenowy Zheng <icenowy-h8G6r0blFSE@public.gmane.org>,
Sean Paul <seanpaul-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>,
dri-devel
<dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>,
devicetree <devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
arm-linux
<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>,
linux-sunxi <linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
Subject: Re: [PATCH v3 06/11] drm/sun4i: rgb: Add DT property to disable strict clock rate check
Date: Wed, 20 Feb 2019 22:39:51 -0800 [thread overview]
Message-ID: <CA+E=qVdP8Ocds2Ojv5PzvwowGKb-od21bRgAtC==Z8CNfYszQw@mail.gmail.com> (raw)
In-Reply-To: <20190220103347.74wqu2btdti2myi7@flea>
On Wed, Feb 20, 2019 at 2:33 AM Maxime Ripard <maxime.ripard-LDxbnhwyfcJBDgjK7y7TUQ@public.gmane.org> wrote:
>
> On Tue, Feb 19, 2019 at 07:44:56AM -0800, Vasily Khoruzhick wrote:
> > On Tue, Feb 19, 2019 at 12:56 AM Maxime Ripard
> > Maxime, thanks for your patch but it doesn't work for me. Pinebook
> > needs 1% tolerance. Having it as a module parameter means that no
> > distro will be able to boot on Pinebook out of the box.
>
> I don't really know what to tell you, the VESA spec defines everywhere
> that tolerance, and if we're not able to provide that, then we're not
> compliant and I don't want us to not be compliant just because one
> panel needed to be a bit more flexible, and especially since what
> could work on one panel might fail on another one.
>
> If you want alternate solutions, then please answer to:
> http://lists.infradead.org/pipermail/linux-arm-kernel/2019-February/630441.html
>
> or provide the EDID blob.
Uh, I spoke to early, my bad. I made a mistake when I calculated rate
deviation for 768p last time - I took 73MHz as dotclock, but actual
requested rate 72.3 MHz and it gets 72.296296 MHz, so it's within 0.5%
tolerance. 1080p pinebook needs 138.5 MHz and gets 138.461538 MHz -
also within 0.5%.
However your patch has an issue, I'll respond to your previous email.
> Maxime
>
> --
> Maxime Ripard, Bootlin
> Embedded Linux and Kernel engineering
> https://bootlin.com
WARNING: multiple messages have this Message-ID (diff)
From: Vasily Khoruzhick <anarsoul@gmail.com>
To: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
Rob Herring <robh@kernel.org>,
Archit Taneja <architt@codeaurora.org>,
devicetree <devicetree@vger.kernel.org>,
David Airlie <airlied@linux.ie>,
linux-sunxi <linux-sunxi@googlegroups.com>,
dri-devel <dri-devel@lists.freedesktop.org>,
Andrzej Hajda <a.hajda@samsung.com>, Chen-Yu Tsai <wens@csie.org>,
Thierry Reding <thierry.reding@gmail.com>,
Sean Paul <seanpaul@chromium.org>,
Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
Daniel Vetter <daniel@ffwll.ch>,
arm-linux <linux-arm-kernel@lists.infradead.org>,
Icenowy Zheng <icenowy@aosc.io>
Subject: Re: [PATCH v3 06/11] drm/sun4i: rgb: Add DT property to disable strict clock rate check
Date: Wed, 20 Feb 2019 22:39:51 -0800 [thread overview]
Message-ID: <CA+E=qVdP8Ocds2Ojv5PzvwowGKb-od21bRgAtC==Z8CNfYszQw@mail.gmail.com> (raw)
In-Reply-To: <20190220103347.74wqu2btdti2myi7@flea>
On Wed, Feb 20, 2019 at 2:33 AM Maxime Ripard <maxime.ripard@bootlin.com> wrote:
>
> On Tue, Feb 19, 2019 at 07:44:56AM -0800, Vasily Khoruzhick wrote:
> > On Tue, Feb 19, 2019 at 12:56 AM Maxime Ripard
> > Maxime, thanks for your patch but it doesn't work for me. Pinebook
> > needs 1% tolerance. Having it as a module parameter means that no
> > distro will be able to boot on Pinebook out of the box.
>
> I don't really know what to tell you, the VESA spec defines everywhere
> that tolerance, and if we're not able to provide that, then we're not
> compliant and I don't want us to not be compliant just because one
> panel needed to be a bit more flexible, and especially since what
> could work on one panel might fail on another one.
>
> If you want alternate solutions, then please answer to:
> http://lists.infradead.org/pipermail/linux-arm-kernel/2019-February/630441.html
>
> or provide the EDID blob.
Uh, I spoke to early, my bad. I made a mistake when I calculated rate
deviation for 768p last time - I took 73MHz as dotclock, but actual
requested rate 72.3 MHz and it gets 72.296296 MHz, so it's within 0.5%
tolerance. 1080p pinebook needs 138.5 MHz and gets 138.461538 MHz -
also within 0.5%.
However your patch has an issue, I'll respond to your previous email.
> Maxime
>
> --
> Maxime Ripard, Bootlin
> Embedded Linux and Kernel engineering
> https://bootlin.com
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2019-02-21 6:39 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-15 5:09 [PATCH v3 00/11] Analogix ANX6345 RGB-(e)DP bridge support Vasily Khoruzhick
2019-02-15 5:09 ` Vasily Khoruzhick
[not found] ` <20190215050957.20755-1-anarsoul-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2019-02-15 5:09 ` [PATCH v3 01/11] drm/bridge: move ANA78xx driver to analogix subdirectory Vasily Khoruzhick
2019-02-15 5:09 ` Vasily Khoruzhick
2019-02-15 5:09 ` [PATCH v3 02/11] drm/bridge: split some definitions of ANX78xx to dedicated headers Vasily Khoruzhick
2019-02-15 5:09 ` Vasily Khoruzhick
2019-02-15 5:09 ` [PATCH v3 03/11] drm/bridge: extract some Analogix I2C DP common code Vasily Khoruzhick
2019-02-15 5:09 ` Vasily Khoruzhick
2019-02-15 5:09 ` [PATCH v3 04/11] dt-bindings: Add ANX6345 DP/eDP transmitter binding Vasily Khoruzhick
2019-02-15 5:09 ` Vasily Khoruzhick
[not found] ` <20190215050957.20755-5-anarsoul-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2019-02-18 18:13 ` Rob Herring
2019-02-18 18:13 ` Rob Herring
2019-02-15 5:09 ` [PATCH v3 05/11] drm/bridge: Add Analogix anx6345 support Vasily Khoruzhick
2019-02-15 5:09 ` Vasily Khoruzhick
[not found] ` <20190215050957.20755-6-anarsoul-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2019-02-15 8:23 ` Priit Laes
2019-02-15 8:23 ` [linux-sunxi] " Priit Laes
[not found] ` <20190215082331.7wq6arctd4hdjcnh-q/aMd4JkU83YtjvyW6yDsg@public.gmane.org>
2019-02-15 19:21 ` Vasily Khoruzhick
2019-02-15 19:21 ` [linux-sunxi] " Vasily Khoruzhick
2019-02-15 9:13 ` Andrzej Hajda
2019-02-15 9:13 ` Andrzej Hajda
[not found] ` <7d71654e-7169-2682-5655-0a9a9ea91c6d-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2019-02-15 19:36 ` Vasily Khoruzhick
2019-02-15 19:36 ` Vasily Khoruzhick
2019-02-26 7:12 ` Andrzej Hajda
2019-02-26 7:12 ` Andrzej Hajda
2019-02-15 5:09 ` [PATCH v3 06/11] drm/sun4i: rgb: Add DT property to disable strict clock rate check Vasily Khoruzhick
2019-02-15 5:09 ` Vasily Khoruzhick
[not found] ` <20190215050957.20755-7-anarsoul-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2019-02-18 18:26 ` Rob Herring
2019-02-18 18:26 ` Rob Herring
2019-02-18 19:33 ` Vasily Khoruzhick
2019-02-18 19:33 ` Vasily Khoruzhick
[not found] ` <CA+E=qVfDfDvVmKQDeh2e0SA=tm6VpBMpu9MPKUqxFPObxYFXDg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2019-02-19 8:56 ` Maxime Ripard
2019-02-19 8:56 ` Maxime Ripard
2019-02-19 15:44 ` Vasily Khoruzhick
2019-02-19 15:44 ` Vasily Khoruzhick
[not found] ` <CA+E=qVfV8ds-zb0oG1-g8c-ReCSnZjfUjvAHbZf1zBf8H-xUcw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2019-02-20 10:33 ` Maxime Ripard
2019-02-20 10:33 ` Maxime Ripard
2019-02-21 6:39 ` Vasily Khoruzhick [this message]
2019-02-21 6:39 ` Vasily Khoruzhick
2019-02-21 6:41 ` Vasily Khoruzhick
2019-02-21 6:41 ` Vasily Khoruzhick
2019-02-15 5:09 ` [PATCH v3 07/11] arm64: allwinner: a64: add pinmux for RGB666 LCD Vasily Khoruzhick
2019-02-15 5:09 ` Vasily Khoruzhick
2019-02-15 5:09 ` [PATCH v3 08/11] drm/panel: simple: Add BOE HB140WX1-501 panel support Vasily Khoruzhick
2019-02-15 5:09 ` Vasily Khoruzhick
2019-02-16 20:43 ` Sam Ravnborg
2019-02-16 20:43 ` Sam Ravnborg
[not found] ` <20190216204327.GB22791-uyr5N9Q2VtJg9hUCZPvPmw@public.gmane.org>
2019-02-16 20:48 ` Vasily Khoruzhick
2019-02-16 20:48 ` Vasily Khoruzhick
2019-02-16 21:12 ` Sam Ravnborg
2019-02-16 21:12 ` Sam Ravnborg
2019-02-15 5:09 ` [PATCH v3 09/11] dt-bindings: Add Guangdong Neweast Optoelectronics CO. LTD vendor prefix Vasily Khoruzhick
2019-02-15 5:09 ` Vasily Khoruzhick
[not found] ` <20190215050957.20755-10-anarsoul-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2019-02-18 18:27 ` Rob Herring
2019-02-18 18:27 ` Rob Herring
2019-02-15 5:09 ` [PATCH v3 10/11] drm/panel: simple: Add NewEast Optoelectronics CO., LTD WJFH116008A panel support Vasily Khoruzhick
2019-02-15 5:09 ` Vasily Khoruzhick
[not found] ` <20190215050957.20755-11-anarsoul-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2019-02-18 18:33 ` Rob Herring
2019-02-18 18:33 ` Rob Herring
2019-02-18 19:06 ` Vasily Khoruzhick
2019-02-18 19:06 ` Vasily Khoruzhick
[not found] ` <CA+E=qVcdDQJvssZgu23gM_gKvz2G5GAWcmjFBokE_V=WGJ4h6A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2019-02-19 14:54 ` Rob Herring
2019-02-19 14:54 ` Rob Herring
[not found] ` <CAL_Jsq+pyAd_kMMz+yKjqY=asAi1X1XguM58VjfVhPwD-xi-2w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2019-02-19 21:35 ` Vasily Khoruzhick
2019-02-19 21:35 ` Vasily Khoruzhick
[not found] ` <CA+E=qVcmLnr9sL7UjG2PSC0Ji5PhW=xOLQHGvRUG3yMMZW1hnw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2019-02-22 18:37 ` Rob Herring
2019-02-22 18:37 ` Rob Herring
2019-03-07 6:12 ` Vasily Khoruzhick
2019-03-07 6:12 ` Vasily Khoruzhick
2019-02-15 5:09 ` [PATCH v3 11/11] arm64: allwinner: a64: enable LCD-related hardware for Pinebook Vasily Khoruzhick
2019-02-15 5:09 ` Vasily Khoruzhick
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