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From: Cyril Chemparathy <cyril-l0cyMroinI0@public.gmane.org>
To: Ryan Mallon <ryan-7Wk5F4Od5/oYd5yxfr4S2w@public.gmane.org>
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	<lrg-kDsPt+C1G03kYMGBc/C6ZA@public.gmane.org>
Subject: Re: [PATCH v5 08/12] gpio: add ti-ssp gpio driver
Date: Tue, 16 Nov 2010 14:38:08 -0500	[thread overview]
Message-ID: <4CE2DDA0.1030404@ti.com> (raw)
In-Reply-To: <4CE1B651.1060006-7Wk5F4Od5/oYd5yxfr4S2w@public.gmane.org>

On 11/15/2010 05:38 PM, Ryan Mallon wrote:
> On 11/16/2010 08:12 AM, Cyril Chemparathy wrote:
>> TI's SSP controller pins can be directly read and written to behave like a
>> GPIO.  This patch adds a GPIO driver that exposes such functionality.
>>
>> Signed-off-by: Cyril Chemparathy <cyril-l0cyMroinI0@public.gmane.org>
>> ---
[...]
>> +	spin_lock_init(&gpio->lock);
>> +	platform_set_drvdata(pdev, gpio);
>> +
>> +	gpio->chip.base  = pdata->start;
>> +	gpio->chip.ngpio = 4;
> 
> Is this always four or can the SSP peripheral be configured to have
> varying numbers of gpios. Maybe the number of gpios should be passed via
> platform data?
> 

This can only be 4 (hw defined per-port limit).

I have changed as per your other comments, and will post an update.

Thanks
Cyril.

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  parent reply	other threads:[~2010-11-16 19:38 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-11-15 19:12 [PATCH v5 00/12] tnetv107x ssp drivers Cyril Chemparathy
     [not found] ` <1289848334-8695-1-git-send-email-cyril-l0cyMroinI0@public.gmane.org>
2010-11-15 19:12   ` [PATCH v5 01/12] misc: add driver for sequencer serial port Cyril Chemparathy
     [not found]     ` <1289848334-8695-2-git-send-email-cyril-l0cyMroinI0@public.gmane.org>
2010-11-16  7:10       ` Grant Likely
     [not found]         ` <20101116071047.GE4074-MrY2KI0G/OVr83L8+7iqerDks+cytr/Z@public.gmane.org>
2010-11-16 16:15           ` Cyril Chemparathy
     [not found]             ` <4CE2AE3C.4040805-l0cyMroinI0@public.gmane.org>
2010-11-16 20:35               ` Grant Likely
     [not found]                 ` <AANLkTik76EY8Xh01YP2Tep6k1ETPO+3idmNuk3pVikJG-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-11-16 21:19                   ` Cyril Chemparathy
2010-11-16 22:23                   ` Russell King - ARM Linux
     [not found]                     ` <20101116222340.GF21926-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2010-11-16 23:57                       ` Grant Likely
2010-11-15 19:12   ` [PATCH v5 02/12] davinci: add tnetv107x ssp platform device Cyril Chemparathy
2010-11-15 19:12   ` [PATCH v5 03/12] davinci: add ssp config for tnetv107x evm board Cyril Chemparathy
2010-11-15 19:12   ` [PATCH v5 04/12] spi: add ti-ssp spi master driver Cyril Chemparathy
2010-11-15 21:59     ` Ryan Mallon
     [not found]     ` <1289848334-8695-5-git-send-email-cyril-l0cyMroinI0@public.gmane.org>
2010-11-16  7:22       ` Grant Likely
     [not found]         ` <20101116072225.GF4074-MrY2KI0G/OVr83L8+7iqerDks+cytr/Z@public.gmane.org>
2010-11-16  7:47           ` Grant Likely
2010-11-16 11:34             ` Mark Brown
     [not found]               ` <20101116113409.GH3338-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2010-11-16 20:45                 ` Grant Likely
     [not found]                   ` <20101116204554.GB5016-MrY2KI0G/OVr83L8+7iqerDks+cytr/Z@public.gmane.org>
2010-11-16 22:48                     ` Mark Brown
     [not found]             ` <AANLkTi=utWumLKo9QVWXpkC8WxpgaNJJs+dj=pa2eq-q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-11-17  0:17               ` Cyril Chemparathy
2010-11-17 13:31                 ` Mark Brown
     [not found]                   ` <20101117133136.GA19488-HF5t3jzXg/6ND3a5+9QAFujbO/Zr0HzV@public.gmane.org>
2010-11-17 15:25                     ` David Brownell
     [not found]                       ` <781931.83221.qm-g47maUHHHF+ORdMXk8NaZPu2YVrzzGjVVpNB7YpNyf8@public.gmane.org>
2010-11-17 17:54                         ` Cyril Chemparathy
     [not found]                 ` <4CE31F0E.7050103-l0cyMroinI0@public.gmane.org>
2010-11-17 16:11                   ` Grant Likely
     [not found]                     ` <20101117161130.GC5757-MrY2KI0G/OVr83L8+7iqerDks+cytr/Z@public.gmane.org>
2010-11-17 17:23                       ` Mark Brown
2010-11-17 17:35                       ` Cyril Chemparathy
2010-11-18  5:46                       ` Greg KH
2010-11-25 23:32                         ` Rafael J. Wysocki
2010-11-16 14:19           ` David Brownell
2010-11-15 19:12   ` [PATCH v5 05/12] davinci: add spi devices on tnetv107x evm Cyril Chemparathy
2010-11-15 19:12   ` [PATCH v5 06/12] regulator: add driver for tps6524x regulator Cyril Chemparathy
2010-11-15 19:12   ` [PATCH v5 07/12] davinci: add tnetv107x evm regulators Cyril Chemparathy
2010-11-15 19:12   ` [PATCH v5 08/12] gpio: add ti-ssp gpio driver Cyril Chemparathy
     [not found]     ` <1289848334-8695-9-git-send-email-cyril-l0cyMroinI0@public.gmane.org>
2010-11-15 22:38       ` Ryan Mallon
     [not found]         ` <4CE1B651.1060006-7Wk5F4Od5/oYd5yxfr4S2w@public.gmane.org>
2010-11-16 19:38           ` Cyril Chemparathy [this message]
2010-11-15 19:12   ` [PATCH v5 09/12] davinci: add tnetv107x evm ti-ssp gpio device Cyril Chemparathy
2010-11-15 19:12   ` [PATCH v5 10/12] backlight: add support for tps6116x controller Cyril Chemparathy
2010-11-15 19:12   ` [PATCH v5 11/12] davinci: add tnetv107x evm backlight device Cyril Chemparathy
2010-11-15 19:12   ` [PATCH v5 12/12] davinci: add tnetv107x evm i2c eeprom device Cyril Chemparathy

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