From: Jarkko Nikula <jarkko.nikula@linux.intel.com>
To: Wolfram Sang <wsa@the-dreams.de>
Cc: linux-i2c@vger.kernel.org,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Mika Westerberg <mika.westerberg@linux.intel.com>,
Weifeng Voon <weifeng.voon@intel.com>
Subject: Re: [PATCH 3/3] i2c: designware: Find bus speed from ACPI
Date: Tue, 2 Aug 2016 17:03:47 +0300 [thread overview]
Message-ID: <5e268060-7350-c24a-a53f-c4d9e6b07403@linux.intel.com> (raw)
In-Reply-To: <20160714133645.GH4149@tetsubishi>
Hi
On 07/14/2016 04:36 PM, Wolfram Sang wrote:
> On Mon, Jun 06, 2016 at 02:26:23PM +0300, Jarkko Nikula wrote:
>> Fast mode is the default speed of i2c-designware which can be overridden
>> by platform data or by "clock-frequency" device property. Even though
>> the ACPI 5.1 can pass device properties via _DSD method, shipping systems
>> define the connection speed between I2C host and each slave in their
>> I2cSerialBus resources. Which means speed is not defined per bus but per
>> slave.
>>
>> As there is now support in i2c-core to find the bus speed from ACPI use
>> that to set up the bus speed prior registering the I2C adapter.
>>
>> Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
>
> I can't apply this one? Neither on v4.6, v4.7-rc1 or on i2c/for-next?
>
Sorry the delay, I was on vacation.
This one was dependent on Weifeng's fast mode + and high speed set while
the patches 1-2/3 conflicted with Octavian's set I guess.
Weifeng's set appears to apply by resolving a single line. But since we
both need to resend anyway maybe it's easier for you if we post our sets
together after I resolve conflicts in my patches and do some testing?
--
Jarkko
next prev parent reply other threads:[~2016-08-02 14:04 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-06 11:26 [PATCH 0/3] i2c: core/designware: Find bus speed from ACPI Jarkko Nikula
2016-06-06 11:26 ` [PATCH 1/3] i2c: core: Cleanup I2C ACPI namespace Jarkko Nikula
2016-07-14 13:35 ` Wolfram Sang
2016-07-19 4:33 ` Wolfram Sang
2016-06-06 11:26 ` [PATCH 2/3] i2c: core: Add function for finding the bus speed from ACPI Jarkko Nikula
2016-07-14 13:35 ` Wolfram Sang
2016-07-19 4:33 ` Wolfram Sang
2016-06-06 11:26 ` [PATCH 3/3] i2c: designware: Find " Jarkko Nikula
2016-07-14 13:36 ` Wolfram Sang
2016-08-02 14:03 ` Jarkko Nikula [this message]
2016-08-02 14:43 ` Wolfram Sang
2016-06-06 13:24 ` [PATCH 0/3] i2c: core/designware: " Andy Shevchenko
2016-06-06 16:06 ` Mika Westerberg
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