From: hkallweit1@gmail.com (Heiner Kallweit)
To: linus-amlogic@lists.infradead.org
Subject: [PATCH v4 03/10] i2c: meson: set clock divider in probe instead of setting it for each transfer
Date: Fri, 24 Mar 2017 07:45:25 +0100 [thread overview]
Message-ID: <de85eb92-d3b0-fdc4-2de0-f2b5f8e3436f@gmail.com> (raw)
In-Reply-To: <20170323203156.jjsiu7hydebzh66l@ninjato>
Am 23.03.2017 um 21:31 schrieb Wolfram Sang:
> On Tue, Mar 14, 2017 at 10:53:29PM +0100, Heiner Kallweit wrote:
>> The bus frequency won't change, therefore we can set the clock divider
>> in probe already and we don't have to set it for each transfer.
>
> This is true for some SoCs, but not for all. So, some proof we can
> really do it like this would be nice in the commit message, e.g. "parent
> clock is fixed anyhow" or something.
>
Here the bus frequency is fixed to what is set in DT. I'll extend
the commit message.
>>
>> Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
prev parent reply other threads:[~2017-03-24 6:45 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-14 21:42 [PATCH v4 00/10] i2c: meson: series with improvements Heiner Kallweit
2017-03-14 21:50 ` [PATCH v4 01/10] i2c: meson: use min instead of min_t where min_t isn't needed Heiner Kallweit
2017-03-14 21:50 ` [PATCH v4 02/10] i2c: meson: remove member irq from struct meson_i2c Heiner Kallweit
2017-03-14 21:51 ` [PATCH v4 04/10] i2c: meson: use i2c core for DT clock-frequency parsing Heiner Kallweit
2017-03-23 20:33 ` Wolfram Sang
2017-03-24 6:47 ` Heiner Kallweit
2017-03-24 10:19 ` Neil Armstrong
2017-03-14 21:51 ` [PATCH v4 05/10] i2c: meson: use full 12 bits for clock divider Heiner Kallweit
2017-03-23 20:34 ` Wolfram Sang
2017-03-24 6:49 ` Heiner Kallweit
2017-03-14 21:51 ` [PATCH v4 06/10] i2c: meson: remove variable count from meson_i2c_xfer Heiner Kallweit
2017-03-14 21:51 ` [PATCH v4 07/10] i2c: meson: improve interrupt handler and detect spurious interrupts Heiner Kallweit
2017-03-14 21:51 ` [PATCH v4 08/10] i2c: meson: don't create separate token chain just for the stop command Heiner Kallweit
2017-03-14 21:51 ` [PATCH v4 09/10] i2c: meson: remove meson_i2c_write_tokens Heiner Kallweit
2017-03-14 21:51 ` [PATCH v4 10/10] i2c: meson: improve and simplify interrupt handler Heiner Kallweit
2017-03-14 21:53 ` [PATCH v4 03/10] i2c: meson: set clock divider in probe instead of setting it for each transfer Heiner Kallweit
2017-03-23 20:31 ` Wolfram Sang
2017-03-24 6:45 ` Heiner Kallweit [this message]
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