linux-kernel - Re: [PATCH v6 2/2] i2c: i2c-qcom-geni: Add Block event interrupt support

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Message-ID: <756681dd-1db0-4f22-ad51-52714cc9ea05@quicinc.com>
Date: Fri, 9 May 2025 11:46:44 +0530
From: Jyothi Kumar Seerapu <quic_jseerapu@...cinc.com>
To: ALOK TIWARI <alok.a.tiwari@...cle.com>, Vinod Koul <vkoul@...nel.org>,
        Mukesh Kumar Savaliya <quic_msavaliy@...cinc.com>,
        Viken Dadhaniya
	<quic_vdadhani@...cinc.com>,
        Andi Shyti <andi.shyti@...nel.org>,
        Sumit Semwal
	<sumit.semwal@...aro.org>,
        Christian König
	<christian.koenig@....com>
CC: <linux-arm-msm@...r.kernel.org>, <dmaengine@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-i2c@...r.kernel.org>,
        <linux-media@...r.kernel.org>, <dri-devel@...ts.freedesktop.org>,
        <linaro-mm-sig@...ts.linaro.org>, <quic_vtanuku@...cinc.com>
Subject: Re: [PATCH v6 2/2] i2c: i2c-qcom-geni: Add Block event interrupt
 support



On 5/7/2025 7:51 AM, ALOK TIWARI wrote:
> 
> 
> On 06-05-2025 16:48, Jyothi Kumar Seerapu wrote:
>> +/**
>> + * struct geni_i2c_dev - I2C Geni device specific structure
>> + *
>> + * @se: geni serial engine
>> + * @tx_wm: Tx watermark level
>> + * @irq: i2c serial engine interrupt
>> + * @err: specifies error codes in i2c transfer failures
>> + * @adap: i2c geni adapter
>> + * @done: completion variable
>> + * @cur: pointer to the i2c_msg mentioning current i2c message in use
>> + * @cur_wr: variable used for i2c write opertions
> 
> typo opertions -> operations
Sure, thanks will correct it.
> 
>> + * @cur_rd: variable used for i2c read operations
>> + * @lock: spinlock variable used for synchronization
>> + * @core_clk: pointer to clk
>> + * @clk_freq_out: contains the i2c clock frequency
>> + * @clk_fld: pointer to geni_i2c_clk_fld
>> + * @suspended: flag used for system supend status
> 
> typo supend -> suspend
sure, will correct it.
> 
>> + * @dma_buf: virtual address of the buffer
>> + * @xfer_len: holds length for the dma operation
>> + * @dma_addr: dma address of the buffer
>> + * @tx_c: Tx dma channel
>> + * @rx_c: Rx dma channel
>> + * @gpi_mode: GPI DMA mode of operation
>> + * @abort_done: true for marking i2c abort transfer
>> + * @is_tx_multi_desc_xfer: true for i2c multi transfer support
>> + * @num_msgs: number of i2c messages in a transfer
>> + * @tx_irq_cnt: flag used for tx irq count in i2c multi transfer
>> + * @i2c_multi_desc_config: used for multi transfer support
>> + */
>>   struct geni_i2c_dev {
>>       struct geni_se se;
>>       u32 tx_wm;
>> @@ -100,6 +156,10 @@ struct geni_i2c_dev {
>>       struct dma_chan *rx_c;
>>       bool gpi_mode;
>>       bool abort_done;
>> +    bool is_tx_multi_desc_xfer;
>> +    u32 num_msgs;
>> +    u32 tx_irq_cnt;
>> +    struct geni_i2c_gpi_multi_desc_xfer i2c_multi_desc_config;
>>   };
> 
> 
> Thanks,
> Alok