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From: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
To: Amitkumar Karwar <akarwar-eYqpPyKDWXRBDgjK7y7TUQ@public.gmane.org>
Cc: linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Nishant Sarmukadam
	<nishants-eYqpPyKDWXRBDgjK7y7TUQ@public.gmane.org>,
	wnhuang-F7+t8E8rja9Wk0Htik3J/w@public.gmane.org,
	devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Xinming Hu <huxm-eYqpPyKDWXRBDgjK7y7TUQ@public.gmane.org>
Subject: Re: [PATCH v3 2/3] mwifiex: parse chip specific gpio from device tree
Date: Mon, 08 Feb 2016 13:11:03 +0100	[thread overview]
Message-ID: <4072066.xhEHjcRQWo@wuerfel> (raw)
In-Reply-To: <1454926528-17480-2-git-send-email-akarwar-eYqpPyKDWXRBDgjK7y7TUQ@public.gmane.org>

On Monday 08 February 2016 02:15:27 Amitkumar Karwar wrote:
>                 if (adapter->dt_node) {
> +                       if (of_property_read_u32(adapter->dt_node,
> +                                                "mwifiex,chip-gpio",
> +                                                &data) == 0) {
> +                               mwifiex_dbg(adapter, INFO,
> +                                           "chip_gpio = 0x%x\n", data);
> +                               adapter->hs_cfg.gpio = data;
> +                       }
> +
> 

Please use the GPIO DT binding. Reading a number from DT is not a proper
way to get a GPIO number, as you may have more than one GPIO controller
in a system and it is not obvious to which controller this number belongs,
or if you need to specify things like polarity.

	Arnd
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  parent reply	other threads:[~2016-02-08 12:11 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-02-08 10:15 [PATCH v3 1/3] mwifiex: register platform specific driver Amitkumar Karwar
     [not found] ` <1454926528-17480-1-git-send-email-akarwar-eYqpPyKDWXRBDgjK7y7TUQ@public.gmane.org>
2016-02-08 10:15   ` [PATCH v3 2/3] mwifiex: parse chip specific gpio from device tree Amitkumar Karwar
     [not found]     ` <1454926528-17480-2-git-send-email-akarwar-eYqpPyKDWXRBDgjK7y7TUQ@public.gmane.org>
2016-02-08 12:11       ` Arnd Bergmann [this message]
2016-02-08 21:47         ` Rob Herring
2016-02-09 14:03           ` Amitkumar Karwar
     [not found]             ` <1be9cc31466a49d2b6673e09795c9497-uAViF8V/CPOq90oVIqnETxL4W9x8LtSr@public.gmane.org>
2016-02-09 14:19               ` Arnd Bergmann
2016-02-09 14:26                 ` Amitkumar Karwar
2016-02-08 10:15   ` [PATCH v3 3/3] mwifiex: parse host wakeup configuration " Amitkumar Karwar
     [not found]     ` <1454926528-17480-3-git-send-email-akarwar-eYqpPyKDWXRBDgjK7y7TUQ@public.gmane.org>
2016-02-08 12:12       ` Arnd Bergmann
2016-02-09 13:46         ` Amitkumar Karwar
2016-02-08 12:09   ` [PATCH v3 1/3] mwifiex: register platform specific driver Arnd Bergmann
2016-02-09 13:44     ` Amitkumar Karwar
     [not found]       ` <5ef981436ee64f67beef7ca1e2470c69-uAViF8V/CPOq90oVIqnETxL4W9x8LtSr@public.gmane.org>
2016-02-09 14:18         ` Arnd Bergmann
2016-02-09 14:27           ` Amitkumar Karwar
2016-02-08 21:56   ` Rob Herring
2016-02-09 14:00     ` Amitkumar Karwar

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