linux-kernel - Re: [PATCH 0/8] i2c: sprd: Modification of UNIOC Platform IIC Driver

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Message-ID: <20230824164456.cgg7dqz7rxarmzf6@intel.intel>
Date:   Thu, 24 Aug 2023 18:44:56 +0200
From:   Andi Shyti <andi.shyti@...nel.org>
To:     Huangzheng Lai <Huangzheng.Lai@...soc.com>
Cc:     Orson Zhai <orsonzhai@...il.com>,
        Baolin Wang <baolin.wang@...ux.alibaba.com>,
        Chunyan Zhang <zhang.lyra@...il.com>,
        linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org,
        huangzheng lai <laihuangzheng@...il.com>,
        Xiongpeng Wu <xiongpeng.wu@...soc.com>
Subject: Re: [PATCH 0/8] i2c: sprd: Modification of UNIOC Platform IIC Driver

Hi Orson,

On Thu, Aug 17, 2023 at 05:45:12PM +0800, Huangzheng Lai wrote:
> Recently, some bugs have been discovered during use, and patch3 
> and patch5-8 are bug fixes. Also, this patchset add new features: 
> patch1 allows IIC to use more frequencies for communication, 
> patch2 allows IIC to use 'reset framework' for reset, and patch4 allows 
> IIC controller to dynamically switch frequencies during use.
> 
> Huangzheng Lai (8):
>   i2c: sprd: Add configurations that support 1Mhz and 3.4Mhz frequencies
>   i2c: sprd: Add I2C driver to use 'reset framework' function
>   i2c: sprd: Use global variables to record IIC ack/nack status instead
>     of local variables
>   i2c: sprd: Add IIC controller driver to support dynamic switching of
>     400K/1M/3.4M frequency
>   i2c: sprd: Configure the enable bit of the IIC controller before each
>     transmission initiation
>   i2c: sprd: Add additional IIC control bit configuration to adapt to
>     the new IP version of the UNISOC platform
>   i2c: sprd: Set I2C_RX_ACK when clear irq
>   i2c: sprd: Increase the waiting time for IIC transmission to avoid
>     system crash issues

there are some changes here that require device knowledge... can
you please take a look here?

Andi