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From: Shinya Kuribayashi <shinya.kuribayashi.px-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>
To: dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
Cc: linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	ben-linux-elnMNo+KYs3YtjvyW6yDsg@public.gmane.org
Subject: Re: [PATCH 6/9] i2c-designware: move controller config to bus specific portion of driver
Date: Tue, 25 Jan 2011 11:22:33 +0900	[thread overview]
Message-ID: <4D3E33E9.3010306@renesas.com> (raw)
In-Reply-To: <1295033256-30077-7-git-send-email-dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>

On 1/15/2011 4:27 AM, dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote:
> From: Dirk Brandewie <dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> 
> With multiple I2C adapters possible in the system each running at
> (possibly) different speeds we need to move the controller
> configuration bit field to the adapter.

This is also a good first step to support per-bus basis I2C bus-speed
configuration, because current i2c-designware driver is going to
configure all I2C busses with the same speed settings, unfortunately.

> @@ -375,6 +373,7 @@ int i2c_dw_handle_tx_abort(struct dw_i2c_dev *dev)
>  		return -EIO;
>  }
>  
> +
>  /*
>   * Prepare controller for a transaction and call i2c_dw_xfer_msg
>   */

!

> @@ -212,7 +214,6 @@ const struct pci_device_id *id)
>  
>  	i2c_dw_init(dev);
>  
> -
>  	adap = &dev->adapter;
>  	i2c_set_adapdata(adap, dev);
>  	adap->owner = THIS_MODULE;

!

As talked with Dirk-san before, this patch improves a situation at
PCI driver side only, and we need to come up with a way for platform
side in the future!
-- 
Shinya Kuribayashi
Renesas Electronics

  parent reply	other threads:[~2011-01-25  2:22 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-01-14 19:27 [PATCH RFC] Splitting i2c-designware.c to support PCI drivers dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w
     [not found] ` <1295033256-30077-1-git-send-email-dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2011-01-14 19:27   ` [PATCH 1/9] i2c-designware: Add designware PCI config option dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w
2011-01-14 19:27   ` [PATCH 2/9] i2c-designware: Initial split of i2c-designware.c into core and bus specific parts dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w
     [not found]     ` <1295033256-30077-3-git-send-email-dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2011-01-25  1:58       ` Shinya Kuribayashi
     [not found]         ` <4D3E2E3F.1060506-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>
2011-01-25 15:26           ` Dirk Brandewie
2011-01-14 19:27   ` [PATCH 3/9] i2c-designware: retrieve clock frequency based CONFIG_HAVE_CLK dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w
2011-01-14 19:27   ` [PATCH 4/9] i2c-designware: Add support for Designware core behind PCI devices dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w
2011-01-14 19:27   ` [PATCH 5/9] i2c-designware: move i2c functionality bit field to be adapter specific dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w
     [not found]     ` <1295033256-30077-6-git-send-email-dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2011-01-25  2:07       ` Shinya Kuribayashi
2011-01-14 19:27   ` [PATCH 6/9] i2c-designware: move controller config to bus specific portion of driver dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w
     [not found]     ` <1295033256-30077-7-git-send-email-dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2011-01-25  2:22       ` Shinya Kuribayashi [this message]
2011-01-14 19:27   ` [PATCH 7/9] i2c-designware: Allow mixed endianness accesses dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w
     [not found]     ` <1295033256-30077-8-git-send-email-dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2011-01-17 17:19       ` Jean-Hugues Deschenes
     [not found]         ` <2C61B7B7755780449CA3ED217819DA761BC7B3BD-VR+kULHyjlM/vpUtHNqADA@public.gmane.org>
2011-01-25  2:28           ` Shinya Kuribayashi
     [not found]             ` <4D3E3546.80806-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>
2011-01-25 15:30               ` Dirk Brandewie
2011-01-25  2:45       ` Shinya Kuribayashi
2011-01-14 19:27   ` [PATCH 8/9] i2c-designware-pci: Add runtime power management support dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w
     [not found]     ` <1295033256-30077-9-git-send-email-dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2011-01-25  3:00       ` Shinya Kuribayashi
2011-01-14 19:27   ` [PATCH 9/9] i2c-designware: Support multiple cores using same ISR dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w
2011-01-14 20:30   ` [PATCH RFC] Splitting i2c-designware.c to support PCI drivers Jean Delvare
     [not found]     ` <20110114213007.58c8b237-R0o5gVi9kd7kN2dkZ6Wm7A@public.gmane.org>
2011-01-14 21:48       ` Ben Dooks
     [not found]         ` <20110114214839.GC15795-SMNkleLxa3Z6Wcw2j4pizdi2O/JbrIOy@public.gmane.org>
2011-01-17 16:06           ` Dirk Brandewie
     [not found]             ` <4D346909.6030503-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2011-01-18 12:15               ` Jean Delvare

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