2022-01-25 17:31:18

by Yicong Yang

[permalink] [raw]
Subject: [PATCH 0/2] Add I2C bus recovery support on Kunpeng 920/930

This series adds the I2C bus recovery support on Kunpeng 920/930.
We're using HiSilicon I2C controller on Kunpeng 930 and Designware
I2C controller on Kunpeng 920. For both platform, the SCL/SDA pins
are multiplexed with GPIOs. Both driver use generic GPIO recovery
method and we need to switch the pin mutiplexing before/after the
recovery process. We use ACPI method to help on the pin mux switching
which is also introduced in this series.

Yicong Yang (2):
i2c: hisi: Add generic GPIO bus recovery support
i2c: designware: Add ACPI assisted recovery support

drivers/i2c/busses/i2c-designware-core.h | 2 +
drivers/i2c/busses/i2c-designware-master.c | 84 ++++++++++++++++++++-
drivers/i2c/busses/i2c-designware-platdrv.c | 6 +-
drivers/i2c/busses/i2c-hisi.c | 78 +++++++++++++++++++
4 files changed, 164 insertions(+), 6 deletions(-)

--
2.24.0


2022-02-08 02:11:50

by Yicong Yang

[permalink] [raw]
Subject: Re: [PATCH 0/2] Add I2C bus recovery support on Kunpeng 920/930

a friendly ping ...

Hi Designware maintainers and Wolfram, any comments for this?

thanks.

On 2022/1/25 20:49, Yicong Yang wrote:
> This series adds the I2C bus recovery support on Kunpeng 920/930.
> We're using HiSilicon I2C controller on Kunpeng 930 and Designware
> I2C controller on Kunpeng 920. For both platform, the SCL/SDA pins
> are multiplexed with GPIOs. Both driver use generic GPIO recovery
> method and we need to switch the pin mutiplexing before/after the
> recovery process. We use ACPI method to help on the pin mux switching
> which is also introduced in this series.
>
> Yicong Yang (2):
> i2c: hisi: Add generic GPIO bus recovery support
> i2c: designware: Add ACPI assisted recovery support
>
> drivers/i2c/busses/i2c-designware-core.h | 2 +
> drivers/i2c/busses/i2c-designware-master.c | 84 ++++++++++++++++++++-
> drivers/i2c/busses/i2c-designware-platdrv.c | 6 +-
> drivers/i2c/busses/i2c-hisi.c | 78 +++++++++++++++++++
> 4 files changed, 164 insertions(+), 6 deletions(-)
>

2022-02-08 09:16:41

by Andy Shevchenko

[permalink] [raw]
Subject: Re: [PATCH 0/2] Add I2C bus recovery support on Kunpeng 920/930

On Mon, Feb 07, 2022 at 03:37:17PM +0800, Yicong Yang wrote:
> a friendly ping ...
>
> Hi Designware maintainers and Wolfram, any comments for this?

Answered, sorry for the delay.

--
With Best Regards,
Andy Shevchenko