From: Suravee Suthikulanit <suravee.suthikulpanit@amd.com>
To: Wolfram Sang <wsa@the-dreams.de>
Cc: mika.westerberg@linux.intel.com, jarkko.nikula@linux.intel.com,
andriy.shevchenko@linux.intel.com, lho@apm.com, Ken.Xue@amd.com,
linux-i2c@vger.kernel.org, linux-acpi@vger.kernel.org,
linux-kernel@vger.kernel.org, "Hurwitz,
Sherry" <sherry.hurwitz@amd.com>,
Tom Lendacky <thomas.lendacky@amd.com>
Subject: Re: [PATCH v4] i2c: designware: Do not require clock when SSCN and FFCN are provided
Date: Wed, 13 Jan 2016 16:46:41 -0600 [thread overview]
Message-ID: <5696D3D1.2010509@amd.com> (raw)
In-Reply-To: <20160110083812.GE1526@katana>
On 1/10/2016 2:38 AM, Wolfram Sang wrote:
> On Mon, Jan 04, 2016 at 09:17:35AM -0600, Suravee Suthikulpanit wrote:
>> The current driver uses input clock source frequency to calculate
>> values for [SS|FS]_[HC|LC] registers. However, when booting ACPI, we do not
>> currently have a good way to provide the frequency information.
>> Instead, we can leverage the SSCN and FFCN ACPI methods, which can be used
>> to directly provide these values. So, the clock information should
>> no longer be required during probing.
>>
>> However, since clk can be invalid, additional checks must be done where
>> we are making use of it.
>>
>> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
>> Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
>> Tested-by: Loc Ho <lho@apm.com>
>
> Applied to for-next, thanks! Also thanks to all reviewers and testers.
>
Thank you,
Suravee
prev parent reply other threads:[~2016-01-13 22:46 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-04 15:17 [PATCH v4] i2c: designware: Do not require clock when SSCN and FFCN are provided Suravee Suthikulpanit
2016-01-04 16:15 ` Wolfram Sang
2016-01-05 19:58 ` Loc Ho
2016-01-07 0:31 ` Loc Ho
2016-01-07 5:05 ` Suravee Suthikulpanit
2016-01-10 8:38 ` Wolfram Sang
2016-01-13 22:46 ` Suravee Suthikulanit [this message]
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