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

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Message-ID: <20230817094520.21286-1-Huangzheng.Lai@unisoc.com>
Date:   Thu, 17 Aug 2023 17:45:12 +0800
From:   Huangzheng Lai <Huangzheng.Lai@...soc.com>
To:     Andi Shyti <andi.shyti@...nel.org>
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>,
        Huangzheng Lai <Huangzheng.Lai@...soc.com>,
        Xiongpeng Wu <xiongpeng.wu@...soc.com>
Subject: [PATCH 0/8] i2c: sprd: Modification of UNIOC Platform IIC Driver

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

 drivers/i2c/busses/i2c-sprd.c | 70 +++++++++++++++++++++++++++--------
 1 file changed, 55 insertions(+), 15 deletions(-)

-- 
2.17.1