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Re: [PATCH v4] i2c: designware: Do not require clock when SSCN and FFCN are provided

From Wolfram Sang <wsa@the-dreams.de>
Newsgroups linux.kernel
Subject Re: [PATCH v4] i2c: designware: Do not require clock when SSCN and FFCN are provided
Date 2016-01-10 09:40 +0100
Message-ID <qPjHz-1Ju-5@gated-at.bofh.it> (permalink)
References <qNf5p-59c-49@gated-at.bofh.it>
Organization linux.* mail to news gateway

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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.

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Thread

[PATCH v4] i2c: designware: Do not require clock when SSCN and FFCN are provided Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> - 2016-01-04 16:20 +0100
  Re: [PATCH v4] i2c: designware: Do not require clock when SSCN and  FFCN are provided Wolfram Sang <wsa@the-dreams.de> - 2016-01-04 17:20 +0100
    Re: [PATCH v4] i2c: designware: Do not require clock when SSCN and  FFCN are provided Loc Ho <lho@apm.com> - 2016-01-05 21:00 +0100
    Re: [PATCH v4] i2c: designware: Do not require clock when SSCN and  FFCN are provided Loc Ho <lho@apm.com> - 2016-01-07 01:40 +0100
  Re: [PATCH v4] i2c: designware: Do not require clock when SSCN and  FFCN are provided Wolfram Sang <wsa@the-dreams.de> - 2016-01-10 09:40 +0100
    Re: [PATCH v4] i2c: designware: Do not require clock when SSCN and  FFCN are provided Suravee Suthikulanit <suravee.suthikulpanit@amd.com> - 2016-01-13 23:50 +0100

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