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From: Grant Likely <grant.likely@secretlab.ca>
To: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: linux-kernel@vger.kernel.org,
	David Brownell <dbrownell@users.sourceforge.net>,
	"Steven A. Falco" <sfalco@harris.com>,
	Jean Delvare <khali@linux-fr.org>,
	David Miller <davem@davemloft.net>,
	i2c@lm-sensors.org, linuxppc-dev@ozlabs.org
Subject: Re: [PATCH 3/7] of: fill the archdata for I2C devices
Date: Tue, 21 Oct 2008 22:14:46 -0600	[thread overview]
Message-ID: <20081022041446.GA7176@secretlab.ca> (raw)
In-Reply-To: <20081016171256.GC5515@oksana.dev.rtsoft.ru>

On Thu, Oct 16, 2008 at 09:12:56PM +0400, Anton Vorontsov wrote:
> For I2C devices we just setting the the node pointer in the archdata.
> This is needed so that the other code would know device's node.
> 
> Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>

Looks okay to me.

Acked-by: Grant Likely <grant.likely@secretlab.ca>
> ---
>  drivers/of/of_i2c.c |   11 +++++++++++
>  1 files changed, 11 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/of/of_i2c.c b/drivers/of/of_i2c.c
> index 6a98dc8..f9e18ed 100644
> --- a/drivers/of/of_i2c.c
> +++ b/drivers/of/of_i2c.c
> @@ -24,6 +24,7 @@ void of_register_i2c_devices(struct i2c_adapter *adap,
>  
>  	for_each_child_of_node(adap_node, node) {
>  		struct i2c_board_info info = {};
> +		struct dev_archdata dev_ad = {};
>  		const u32 *addr;
>  		int len;
>  
> @@ -41,6 +42,9 @@ void of_register_i2c_devices(struct i2c_adapter *adap,
>  
>  		info.addr = *addr;
>  
> +		dev_archdata_set_node(&dev_ad, node);
> +		info.archdata = &dev_ad;
> +
>  		request_module(info.type);
>  
>  		result = i2c_new_device(adap, &info);
> @@ -51,6 +55,13 @@ void of_register_i2c_devices(struct i2c_adapter *adap,
>  			irq_dispose_mapping(info.irq);
>  			continue;
>  		}
> +
> +		/*
> +		 * Get the node to not lose the dev_archdata->of_node.
> +		 * Currently there is no way to put it back, as well as no
> +		 * of_unregister_i2c_devices() call.
> +		 */
> +		of_node_get(node);
>  	}
>  }
>  EXPORT_SYMBOL(of_register_i2c_devices);
> -- 
> 1.5.6.3
> 

  reply	other threads:[~2008-10-22  4:14 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-10-16 17:12 [PATCH 0/7 RFC] Handle I2C GPIO controllers with the OF (was: pca9539 I2C gpio expander) Anton Vorontsov
2008-10-16 17:12 ` [PATCH 1/7] powerpc and sparc: introduce dev_archdata node accessors Anton Vorontsov
2008-10-16 22:36   ` David Miller
2008-10-16 23:02     ` Grant Likely
2008-10-16 17:12 ` [PATCH 2/7] i2c: add info->archdata field Anton Vorontsov
2008-10-17  9:21   ` Jean Delvare
2008-10-22  0:27     ` Benjamin Herrenschmidt
2008-10-22  6:50       ` Jean Delvare
2008-10-22  7:37         ` Benjamin Herrenschmidt
2008-10-22 10:08           ` Anton Vorontsov
2008-10-22 11:07             ` Jean Delvare
2008-10-22 12:50               ` Anton Vorontsov
2008-10-16 17:12 ` [PATCH 3/7] of: fill the archdata for I2C devices Anton Vorontsov
2008-10-22  4:14   ` Grant Likely [this message]
2008-10-16 17:12 ` [PATCH 4/7] gpiolib: implement dev_gpiochip_{add,remove} calls Anton Vorontsov
2008-10-17 20:24   ` David Brownell
2008-10-17 21:29     ` Anton Vorontsov
2008-10-20  7:29       ` David Brownell
2008-10-20 15:48         ` Anton Vorontsov
2008-10-22  0:29           ` Benjamin Herrenschmidt
2008-10-22  1:03             ` Anton Vorontsov
2008-10-22  1:42               ` Anton Vorontsov
2008-10-22  2:28                 ` Benjamin Herrenschmidt
2008-10-22  4:20                   ` Grant Likely
2008-10-22  4:22                   ` David Brownell
2008-10-22 10:36                     ` Anton Vorontsov
2008-10-22 10:46                       ` Anton Vorontsov
2008-10-22 18:32                         ` Anton Vorontsov
2008-10-22 21:04                           ` David Brownell
2008-10-22 21:22                             ` Anton Vorontsov
2008-10-22 21:52                               ` David Brownell
2008-10-22 22:29                                 ` Anton Vorontsov
2008-10-23  5:19                                   ` David Brownell
2008-10-23  4:45                             ` Benjamin Herrenschmidt
2008-10-23  6:06                               ` David Brownell
2008-10-23  6:15                           ` David Brownell
2008-10-28 17:45                         ` [PATCH 0/6 RFC] OF-glue devices for I2C/SPI (was: " Anton Vorontsov
2008-10-28 17:46                           ` [PATCH 1/6] of/base: Add new helper of_should_create_pdev() Anton Vorontsov
2008-10-28 17:46                           ` [PATCH 2/6] of/of_i2c: implement of_{,un}register_i2c_device Anton Vorontsov
2008-10-28 17:46                           ` [PATCH 3/6] of/of_i2c: add support for dedicated OF I2C devices Anton Vorontsov
2008-10-28 18:41                             ` David Miller
2008-10-28 17:46                           ` [PATCH 4/6] of/gpio: add support for two-stage registration for the of_gpio_chips Anton Vorontsov
2008-10-28 17:46                           ` [PATCH 5/6] gpio/pca953x: pass gpio_chip pointer to the setup/teardown callbacks Anton Vorontsov
2008-10-28 17:46                           ` [PATCH 6/6] gpio: OpenFirmware bindings for the pca953x Anton Vorontsov
2008-10-28 17:53                           ` [PATCH 0/6 RFC] OF-glue devices for I2C/SPI (was: Re: [PATCH 4/7] gpiolib: implement dev_gpiochip_{add,remove} calls Grant Likely
2008-10-22  2:27               ` Benjamin Herrenschmidt
2008-10-16 17:13 ` [PATCH 5/7] of/gpio: implement of_dev_gpiochip_{add,remove} calls Anton Vorontsov
2008-10-17 20:25   ` David Brownell
2008-10-17 21:13     ` Anton Vorontsov
2008-10-16 17:13 ` [PATCH 6/7] gpio/pca953x: convert to dev_gpiochip_add and make it work with the OF Anton Vorontsov
2008-10-16 17:13 ` [PATCH 7/7] i2c/mcu_mpc8349emitx: convert to the new I2C/OF/GPIO infrastructure Anton Vorontsov
2008-10-17 16:07 ` [PATCH 0/7 RFC] Handle I2C GPIO controllers with the OF (was: pca9539 I2C gpio expander) Steven A. Falco

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