linux-kernel - Re: [PATCH] i2c: designware: Add support for AMD Seattle I2C

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Message-ID: <5689A6B7.7010401@amd.com>
Date:	Sun, 3 Jan 2016 16:54:47 -0600
From:	Suravee Suthikulpanit <Suravee.Suthikulpanit@....com>
To:	Wolfram Sang <wsa@...-dreams.de>
CC:	Mika Westerberg <mika.westerberg@...ux.intel.com>,
	<linux-i2c@...r.kernel.org>, <linux-acpi@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] i2c: designware: Add support for AMD Seattle I2C

Hi Wolfram,

On 01/03/2016 12:45 PM, Wolfram Sang wrote:
> On Wed, Dec 16, 2015 at 06:49:59PM -0600, Suravee Suthikulanit wrote:
>> Mika,
>>
>> On 12/16/2015 8:54 AM, Mika Westerberg wrote:
>>> On Wed, Dec 16, 2015 at 08:29:38AM -0600, Suravee Suthikulpanit wrote:
>>>>>
>>>>>
>>>>> On 12/16/2015 03:16 AM, Mika Westerberg wrote:
>>>>>>> On Tue, Dec 15, 2015 at 08:14:34PM -0600, Suravee Suthikulpanit wrote:
>>>>>>>>> Hi Mika,
>>>>>>>>>
>>>>>>>>> On 12/15/15 15:55, Suravee Suthikulpanit wrote:
>>>>>>>>>>> Add device HID AMDI0510 to match the I2C controlers on AMD Seattle platform
>>>>>>>>>>>
>>>>>>>>>>> Signed-off-by: Suravee Suthikulpanit<Suravee.Suthikulpanit@....com>
>>>>>>>>>>> ---
>>>>>>>>>>>   drivers/i2c/busses/i2c-designware-platdrv.c | 1 +
>>>>>>>>>>>   1 file changed, 1 insertion(+)
>>>>>>>>>>>
>>>>>>>>>>> diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
>>>>>>>>>>> index 57f623b..a027154 100644
>>>>>>>>>>> --- a/drivers/i2c/busses/i2c-designware-platdrv.c
>>>>>>>>>>> +++ b/drivers/i2c/busses/i2c-designware-platdrv.c
>>>>>>>>>>> @@ -117,6 +117,7 @@ static const struct acpi_device_id dw_i2c_acpi_match[] = {
>>>>>>>>>>>   	{ "80860F41", 0 },
>>>>>>>>>>>   	{ "808622C1", 0 },
>>>>>>>>>>>   	{ "AMD0010", 0 },
>>>>>>>>>>> +	{ "AMDI0510", 0 },
>>>>>>>>>>>   	{ }
>>>>>>>>>
>>>>>>>>> Since this driver seems to be used by several SOCs, and we have been adding
>>>>>>>>> the HID from various SOC vendors. Do you think it would be better to assign
>>>>>>>>> a CID so that each SOC vendor can specify in their ACPI DSDT and we can
>>>>>>>>> match them here?
>>>>>>>
>>>>>>> Sure _CID would work here.
>>>>>
>>>>> Do you know if Synopsys has already provided a CID that we can use for this?
>>> No.
>>>
>>>>> If not, who do you think should provide this?
>>> Why can't you make _CID for AMD part only? For Intel we are going to get
>>> new IDs for every major SoC release no matter what.
>>>
>> Actually, after discussed with the team. We have decided to go with the
>> AMDI0510 at this point, and we will reuse this as CID in future SOC if it
>> contains compatible I2C controller.
>
> So, can I take the patch as is?
>

Yes, please pull this as is.

Thank you,
Suravee
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