linux-kernel - Re: [PATCH 6/6] i2c: designware: Add Baikal-T1 SoC I2C controller support

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Message-ID: <20200325182101.k47u4cjnbv6knsag@ubsrv2.baikal.int>
Date:   Wed, 25 Mar 2020 21:21:01 +0300
From:   Sergey Semin <Sergey.Semin@...kalelectronics.ru>
To:     Wolfram Sang <wsa@...-dreams.de>
CC:     Jarkko Nikula <jarkko.nikula@...ux.intel.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Alexey Malahov <Alexey.Malahov@...kalelectronics.ru>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Paul Burton <paulburton@...nel.org>,
        Ralf Baechle <ralf@...ux-mips.org>,
        <linux-i2c@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 6/6] i2c: designware: Add Baikal-T1 SoC I2C controller
 support

On Sat, Mar 21, 2020 at 07:33:49PM +0100, Wolfram Sang wrote:
> On Fri, Mar 06, 2020 at 04:19:58PM +0300, Sergey.Semin@...kalelectronics.ru wrote:
> > From: Serge Semin <Sergey.Semin@...kalelectronics.ru>
> > 
> > A third I2C controller embedded into the Baikal-T1 SoC is also fully
> > based on the DW APB I2C core, but its registers are indirectly
> > accessible via "command/data in/data out" trio. There is no difference
> > other than that. So in order to have that controller supported by the
> > common DW APB I2C driver we only need to introduce a new flag
> > ACCESS_INDIRECT and use the access-registers to reach the I2C controller
> > normal registers space in the dw_readl/dw_writel methods. Currently this
> > flag is only enabled for the controllers with "be,bt1-i2c" compatible
> > string.
> > 
> > Signed-off-by: Serge Semin <Sergey.Semin@...kalelectronics.ru>
> > Signed-off-by: Alexey Malahov <Alexey.Malahov@...kalelectronics.ru>
> 
> Patches 2,3, and 6 have comments which should be addressed. Patches 4+5
> can be dropped when sending next version.
> 

Great! Thanks. I'll have respond on the requests very soon.

Regards,
-Sergey