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From: Mark Brown <broonie-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
To: John Bonesio <bones-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org>
Cc: linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
	glikely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org,
	olofj-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org,
	swarren-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org
Subject: Re: [RFC 2/2] ARM:Tegra: Device Tree Support: Initialize audio card gpio's from the device tree.
Date: Sat, 28 May 2011 09:24:47 +0800	[thread overview]
Message-ID: <20110528012427.GB5971@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <20110527205721.21000.78599.stgit@riker>

On Fri, May 27, 2011 at 01:57:26PM -0700, John Bonesio wrote:

>  	harmony_audio: audio_card {
>  		compatible = "nvidia,harmony-audio";
> +
> +		gpios = <&codec 226 0>, /* spkr_en, gpio wm8903 #2 */
> +			<&gpio 178 0>, /* hp_det, gpio PW2 */
> +			<&gpio 184 0>, /* int_mic_en, gpio PX0 */
> +			<&gpio 185 0>; /* ext_mic_en, gpio PX1 */
> +

This is a step back from the usability of the existing platform data -
the platform data uses a series of individually named GPIOs while this
uses an array of GPIO numbers with magic indexes.  The fact that you
need comments explaining what the functions of the array elements are
is a bit of a red flag here.

WARNING: multiple messages have this Message-ID (diff)
From: broonie@opensource.wolfsonmicro.com (Mark Brown)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC 2/2] ARM:Tegra: Device Tree Support: Initialize audio card gpio's from the device tree.
Date: Sat, 28 May 2011 09:24:47 +0800	[thread overview]
Message-ID: <20110528012427.GB5971@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <20110527205721.21000.78599.stgit@riker>

On Fri, May 27, 2011 at 01:57:26PM -0700, John Bonesio wrote:

>  	harmony_audio: audio_card {
>  		compatible = "nvidia,harmony-audio";
> +
> +		gpios = <&codec 226 0>, /* spkr_en, gpio wm8903 #2 */
> +			<&gpio 178 0>, /* hp_det, gpio PW2 */
> +			<&gpio 184 0>, /* int_mic_en, gpio PX0 */
> +			<&gpio 185 0>; /* ext_mic_en, gpio PX1 */
> +

This is a step back from the usability of the existing platform data -
the platform data uses a series of individually named GPIOs while this
uses an array of GPIO numbers with magic indexes.  The fact that you
need comments explaining what the functions of the array elements are
is a bit of a red flag here.

  parent reply	other threads:[~2011-05-28  1:24 UTC|newest]

Thread overview: 92+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-27 20:56 [RFC 0/2] ARM: Tegra: Device Tree: Audio John Bonesio
2011-05-27 20:56 ` John Bonesio
2011-05-27 20:57 ` [RFC 1/2] ARM:Tegra: Device Tree Support: Initialize the audio card from the device tree John Bonesio
2011-05-27 21:05   ` Grant Likely
2011-05-27 21:05     ` Grant Likely
2011-05-28  1:28   ` Mark Brown
2011-05-28  1:28     ` Mark Brown
2011-06-01  7:07   ` Barry Song
2011-06-01  7:07     ` Barry Song
     [not found]     ` <BANLkTi=NMjBjWVv_o3PocejhgGr8TdG+1Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-06-01 16:47       ` Grant Likely
2011-06-01 16:47         ` Grant Likely
     [not found]         ` <BANLkTi=PtEhxxmZo2DqvmySCmnEd3LbezQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-06-02  9:07           ` Barry Song
2011-06-02  9:07             ` Barry Song
     [not found]             ` <BANLkTikWpiY_o27OF-Jxvq7iPeWzrAYOsQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-06-02 16:04               ` Grant Likely
2011-06-02 16:04                 ` Grant Likely
     [not found]                 ` <20110602160445.GA8373-e0URQFbLeQY2iJbIjFUEsiwD8/FfD2ys@public.gmane.org>
2011-06-02 16:21                   ` Barry Song
2011-06-02 16:21                     ` Barry Song
     [not found]                     ` <BANLkTikGp_O-Wd3nMhbV+-RLeXZoWeB6eQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-06-02 21:43                       ` Russell King - ARM Linux
2011-06-02 21:43                         ` Russell King - ARM Linux
     [not found]                         ` <20110602214322.GC10532-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2011-06-03  2:32                           ` Barry Song
2011-06-03  2:32                             ` Barry Song
     [not found]                             ` <BANLkTikiaA3CCRAXkB=x56wtt8nNF9dqxA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-06-03  6:20                               ` Russell King - ARM Linux
2011-06-03  6:20                                 ` Russell King - ARM Linux
2011-06-02 21:36                   ` Russell King - ARM Linux
2011-06-02 21:36                     ` Russell King - ARM Linux
     [not found]                     ` <20110602213656.GB10532-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2011-06-03  1:19                       ` Barry Song
2011-06-03  1:19                         ` Barry Song
     [not found]                         ` <BANLkTimavC-6oMhAHHsBJ2_Em7aXi7eyNQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-06-07  3:44                           ` Barry Song
2011-06-07  3:44                             ` Barry Song
2011-06-14 15:42                       ` Grant Likely
2011-06-14 15:42                         ` Grant Likely
2011-05-27 20:57 ` [RFC 2/2] ARM:Tegra: Device Tree Support: Initialize audio card gpio's " John Bonesio
2011-05-27 21:06   ` Grant Likely
2011-05-27 21:06     ` Grant Likely
2011-05-28  1:24   ` Mark Brown [this message]
2011-05-28  1:24     ` Mark Brown
     [not found]     ` <20110528012427.GB5971-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
2011-05-30  3:11       ` Olof Johansson
2011-05-30  3:11         ` Olof Johansson
     [not found]         ` <BANLkTinKLcYmStvBEGDcN84BapJXe5Y5bg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-05-30  3:38           ` Mark Brown
2011-05-30  3:38             ` Mark Brown
     [not found]             ` <20110530033826.GE4130-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
2011-05-30  6:11               ` Grant Likely
2011-05-30  6:11                 ` Grant Likely
     [not found]                 ` <20110530061155.GC23517-e0URQFbLeQY2iJbIjFUEsiwD8/FfD2ys@public.gmane.org>
2011-05-30  6:18                   ` Mitch Bradley
2011-05-30  6:18                     ` Mitch Bradley
     [not found]                     ` <4DE336A1.5040509-D5eQfiDGL7eakBO8gow8eQ@public.gmane.org>
2011-05-30  6:22                       ` Grant Likely
2011-05-30  6:22                         ` Grant Likely
2011-05-30  7:01                       ` Mark Brown
2011-05-30  7:01                         ` Mark Brown
     [not found]                         ` <20110530070138.GA5036-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
2011-05-30 16:22                           ` Grant Likely
2011-05-30 16:22                             ` Grant Likely
2011-05-30 18:54                           ` Segher Boessenkool
2011-05-30 18:54                             ` Segher Boessenkool
     [not found]                             ` <8d2515b13c817cc956b185d043bcef00-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
2011-05-30 19:20                               ` Grant Likely
2011-05-30 19:20                                 ` Grant Likely
     [not found]                                 ` <BANLkTi=hkScxYpt449CQCky+bLU3UvkC_A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-05-30 20:53                                   ` Mitch Bradley
2011-05-30 20:53                                     ` Mitch Bradley
     [not found]                                     ` <4DE403C5.7060003-D5eQfiDGL7eakBO8gow8eQ@public.gmane.org>
2011-05-31 17:55                                       ` Stephen Warren
2011-05-31 17:55                                         ` Stephen Warren
     [not found]                                         ` <74CDBE0F657A3D45AFBB94109FB122FF0498E1C22D-C7FfzLzN0UxDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2011-05-31 18:42                                           ` Mitch Bradley
2011-05-31 18:42                                             ` Mitch Bradley
     [not found]                                             ` <4DE536AD.5080200-D5eQfiDGL7eakBO8gow8eQ@public.gmane.org>
2011-06-01 15:59                                               ` Stephen Warren
2011-06-01 15:59                                                 ` Stephen Warren
     [not found]                                                 ` <74CDBE0F657A3D45AFBB94109FB122FF0498E1C3F5-C7FfzLzN0UxDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2011-06-01 16:18                                                   ` Mark Brown
2011-06-01 16:18                                                     ` Mark Brown
     [not found]                                                     ` <20110601161856.GB15583-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
2011-06-02 15:40                                                       ` Grant Likely
2011-06-02 15:40                                                         ` Grant Likely
2011-06-01 21:32                                                   ` Mitch Bradley
2011-06-01 21:32                                                     ` Mitch Bradley
     [not found]                                                     ` <4DE6AFF7.3040905-D5eQfiDGL7eakBO8gow8eQ@public.gmane.org>
2011-06-03 21:24                                                       ` Stephen Warren
2011-06-03 21:24                                                         ` Stephen Warren
     [not found]                                                         ` <74CDBE0F657A3D45AFBB94109FB122FF0498E1C870-C7FfzLzN0UxDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2011-06-04  0:25                                                           ` Mitch Bradley
2011-06-04  0:25                                                             ` Mitch Bradley
2011-06-02 14:59                                           ` Grant Likely
2011-06-02 14:59                                             ` Grant Likely
2011-06-02 15:40                                       ` Grant Likely
2011-06-02 15:40                                         ` Grant Likely
2011-06-28 21:39                                   ` Grant Likely
2011-06-28 21:39                                     ` Grant Likely
2011-05-30 23:27                           ` Benjamin Herrenschmidt
2011-05-30 23:27                             ` Benjamin Herrenschmidt
2011-05-30 23:49                             ` Olof Johansson
2011-05-30 23:49                               ` Olof Johansson
     [not found]                               ` <20110530234909.GA3411-O5ziIzlqnXUVNXGz7ipsyg@public.gmane.org>
2011-05-31  0:58                                 ` Segher Boessenkool
2011-05-31  0:58                                   ` Segher Boessenkool
2011-05-31 10:24                                 ` Mark Brown
2011-05-31 10:24                                   ` Mark Brown
2011-05-30  7:10                   ` Mark Brown
2011-05-30  7:10                     ` Mark Brown
2011-05-30 23:26                   ` Benjamin Herrenschmidt
2011-05-30 23:26                     ` Benjamin Herrenschmidt
2011-05-31 10:03                     ` Mark Brown
2011-05-31 10:03                       ` Mark Brown

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