Re: [PATCH 08/21] spi: s3c64xx: move error check up to avoid rechecking

[Tudor Ambarus]

On 1/24/24 09:21, André Draszik wrote:
> Hi Tudor,
> 

Hi!

> On Tue, 2024-01-23 at 15:34 +0000, Tudor Ambarus wrote:
>> @@ -538,13 +538,8 @@ static int s3c64xx_wait_for_dma(struct s3c64xx_spi_driver_data *sdd,
>>  			cpu_relax();
>>  			status = readl(regs + S3C64XX_SPI_STATUS);
>>  		}
>> -
>>  	}
>>  
>> -	/* If timed out while checking rx/tx status return error */
>> -	if (!val)
>> -		return -EIO;
>> -
> 
> This change behaviour of this function. The loop just above adjusts val and it is used to
> determine if there was a timeout or not:
> 
> 	if (val && !xfer->rx_buf) {
> 		val = msecs_to_loops(10);
> 		status = readl(regs + S3C64XX_SPI_STATUS);
> 		while ((TX_FIFO_LVL(status, sdd)
> 			|| !S3C64XX_SPI_ST_TX_DONE(status, sdd))
> 		       && --val) {
> 			cpu_relax();
> 			status = readl(regs + S3C64XX_SPI_STATUS);
> 		}
>
Oh, yes, the timeout in this block. You're right, I'll drop the patch.
Thanks!

ta