From: hkallweit1@gmail.com (Heiner Kallweit)
To: linus-amlogic@lists.infradead.org
Subject: [PATCH v4 04/10] i2c: meson: use i2c core for DT clock-frequency parsing
Date: Fri, 24 Mar 2017 07:47:14 +0100 [thread overview]
Message-ID: <6aa0f7c1-1bd0-73eb-e05f-f733125bec8d@gmail.com> (raw)
In-Reply-To: <20170323203309.op7jepa4be2mwkop@ninjato>
Am 23.03.2017 um 21:33 schrieb Wolfram Sang:
>
>> +- i2c-scl-falling-time-ns
>> + Number of nanoseconds the SCL signal takes to fall; t(f) in the I2C
>> + specification.
>> +
>> +- i2c-scl-internal-delay-ns
>> + Number of nanoseconds the IP core additionally needs to setup SCL.
>> +
>> +- i2c-scl-rising-time-ns
>> + Number of nanoseconds the SCL signal takes to rise; t(r) in the I2C
>> + specification.
>> +
>> +- i2c-sda-falling-time-ns
>> + Number of nanoseconds the SDA signal takes to fall; t(f) in the I2C
>> + specification.
>
> Those are not used currently. Can the driver be updated to make use of
> them? Otherwise, we might just skip this section.
>
Adding these properties was outcome of a discussion with Amlogic
maintainers. It's right that they aren't used by the driver and the
chip also provides no means to change the related timings.
So I will remove this part.
next prev parent reply other threads:[~2017-03-24 6:47 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 [this message]
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
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