From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Yicong Yang <yangyicong@hisilicon.com>
Cc: wsa@kernel.org, linux-i2c@vger.kernel.org, digetx@gmail.com,
treding@nvidia.com, jarkko.nikula@linux.intel.com,
rmk+kernel@armlinux.org.uk, song.bao.hua@hisilicon.com,
john.garry@huawei.com, prime.zeng@huawei.com,
linuxarm@huawei.com
Subject: Re: [PATCH v3 2/3] i2c: add support for HiSilicon I2C controller
Date: Mon, 22 Mar 2021 19:04:45 +0200 [thread overview]
Message-ID: <YFjOLTpe7fYvE9C1@smile.fi.intel.com> (raw)
In-Reply-To: <1616411413-7177-3-git-send-email-yangyicong@hisilicon.com>
On Mon, Mar 22, 2021 at 07:10:12PM +0800, Yicong Yang wrote:
> Add HiSilicon I2C controller driver for the Kunpeng SoC. It provides
> the access to the i2c busses, which connects to the eeprom, rtc, etc.
>
> The driver works with IRQ mode, and supports basic I2C features and 10bit
> address. The DMA is not supported.
...
> +static const char *hisi_i2c_speed_string(u32 bus_freq_hz)
> +{
> + switch (bus_freq_hz) {
> + case I2C_MAX_STANDARD_MODE_FREQ:
> + return "100K";
> + case I2C_MAX_FAST_MODE_FREQ:
> + return "400K";
> + case I2C_MAX_HIGH_SPEED_MODE_FREQ:
> + return "3.4M";
> + default:
> + return "unknown";
> + }
> +}
Just realized that if you print the name of the mode (and maybe frequency
value) then it can be moved to generic I²C code and other will benefit out of
this (DesignWare is the first in my mind).
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2021-03-22 17:06 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-22 11:10 [PATCH v3 0/3] Add support for HiSilicon I2C controller Yicong Yang
2021-03-22 11:10 ` [PATCH v3 1/3] i2c: core: add managed function for adding i2c adapters Yicong Yang
2021-03-22 16:35 ` Andy Shevchenko
2021-03-24 8:26 ` Yicong Yang
2021-03-24 11:05 ` Andy Shevchenko
2021-03-22 16:45 ` Dmitry Osipenko
2021-03-24 8:29 ` Yicong Yang
2021-03-24 11:06 ` Andy Shevchenko
2021-03-22 11:10 ` [PATCH v3 2/3] i2c: add support for HiSilicon I2C controller Yicong Yang
2021-03-22 15:21 ` Dmitry Osipenko
2021-03-24 9:30 ` Yicong Yang
2021-03-24 12:26 ` Dmitry Osipenko
2021-03-22 16:59 ` Andy Shevchenko
2021-03-24 10:07 ` Yicong Yang
2021-03-24 11:15 ` Andy Shevchenko
2021-03-22 17:04 ` Andy Shevchenko [this message]
2021-03-24 10:21 ` Yicong Yang
2021-03-24 11:16 ` Andy Shevchenko
2021-03-22 11:10 ` [PATCH v3 3/3] MAINTAINERS: Add maintainer for HiSilicon I2C driver Yicong Yang
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