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From: Stephen Warren <swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
To: Venu Byravarasu <vbyravarasu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
Cc: gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org,
	balbi-l0cyMroinI0@public.gmane.org,
	stern-nwvwT67g6+6dFdvTe/nMLpVzexx5G7lz@public.gmane.org,
	linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH v2 2/7] ARM: tegra: update device trees for USB binding rework
Date: Wed, 03 Apr 2013 13:33:19 -0600	[thread overview]
Message-ID: <515C83FF.10004@wwwdotorg.org> (raw)
In-Reply-To: <1364978502-22887-3-git-send-email-vbyravarasu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>

On 04/03/2013 02:41 AM, Venu Byravarasu wrote:
> This patch updates all Tegra board files so that they contain all the
> properties required by the updated USB DT binding. Note that this patch
> only adds the new properties and does not yet remove the old properties,
> in order to maintain bisectability. The old properties will be removed
> once the driver has been updated to assume the new bindings.

> diff --git a/arch/arm/boot/dts/tegra20-colibri-512.dtsi b/arch/arm/boot/dts/tegra20-colibri-512.dtsi
> index cb73e62..af5a7ae 100644
> --- a/arch/arm/boot/dts/tegra20-colibri-512.dtsi
> +++ b/arch/arm/boot/dts/tegra20-colibri-512.dtsi
> @@ -443,6 +443,10 @@
>  		nvidia,phy-reset-gpio = <&gpio 169 0>; /* gpio PV1 */

Another problem here: The code pulses this GPIO low to reset the PHY, so
in other words, the GPIO is active low.

Can you please prepare a separate patch to fix this; you need to change
all existing instances from:

nvidia,phy-reset-gpio = <&gpio 169 0>; /* gpio PV1 */

to:

nvidia,phy-reset-gpio = <&gpio 169 1>; /* gpio PV1, active low */

Insert that new patch before this patch in the series, and then fix this
patch so that any new copies of that property have the correct content
from the start.

Note: I pointed out this problem in my review of V1, but V2 didn't
include a fix for it:-(

  parent reply	other threads:[~2013-04-03 19:33 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-04-03  8:41 [PATCH v2 0/7] Tegra USB PHY driver series Venu Byravarasu
2013-04-03  8:41 ` [PATCH v2 1/7] ARM: tegra: finalize USB EHCI and PHY bindings Venu Byravarasu
     [not found]   ` <1364978502-22887-2-git-send-email-vbyravarasu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-04-03 19:07     ` Stephen Warren
2013-04-04 12:21       ` Venu Byravarasu
     [not found] ` <1364978502-22887-1-git-send-email-vbyravarasu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-04-03  8:41   ` [PATCH v2 2/7] ARM: tegra: update device trees for USB binding rework Venu Byravarasu
2013-04-03 19:16     ` Stephen Warren
     [not found]       ` <515C8024.30204-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2013-04-04 13:01         ` Venu Byravarasu
     [not found]           ` <D958900912E20642BCBC71664EFECE3E6E50BE48AE-QZ+emBqkIFBDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2013-04-04 18:01             ` Stephen Warren
     [not found]     ` <1364978502-22887-3-git-send-email-vbyravarasu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-04-03 19:33       ` Stephen Warren [this message]
2013-04-03  8:41   ` [PATCH v2 4/7] usb: phy: tegra: Return correct error value provided by clk_get_sys Venu Byravarasu
2013-04-03  8:41 ` [PATCH v2 3/7] usb: phy: tegra: Get PHY mode using DT Venu Byravarasu
2013-04-03  8:41 ` [PATCH v2 5/7] usb: phy: tegra: get ULPI reset GPIO info " Venu Byravarasu
2013-04-03  8:41 ` [PATCH v2 6/7] usb: phy: tegra: Add error handling & clean up Venu Byravarasu
2013-04-03 19:35   ` Stephen Warren
     [not found]     ` <515C8484.507-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2013-04-04 12:29       ` Venu Byravarasu
2013-04-03  8:41 ` [PATCH v2 7/7] usb: phy: registering Tegra USB PHY as platform driver Venu Byravarasu

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