[PATCH 1/3] ata: add Palmchip BK3710 PATA controller driver

Sergei Shtylyov
2017-03-12T17:53:57Z

On 03/12/2017 08:28 PM, Sergei Shtylyov wrote:

>> +static void pata_bk3710_set_piomode(struct ata_port *ap,
>> + struct ata_device *adev)
>> +{
>> + void __iomem *base = (void __iomem *)ap->ioaddr.bmdma_addr;
>> + struct ata_device *pair = ata_dev_pair(adev);
>> + const struct ata_timing *t = ata_timing_find_mode(adev->pio_mode);
>> + const u16 *id = adev->id;
>> + unsigned int cycle_time;
>> + int is_slave = adev->devno;
>> + const u8 pio = adev->pio_mode - XFER_PIO_0;
>> +
>> + if (id[ATA_ID_FIELD_VALID] & 2) {
>> + if (ata_id_has_iordy(id))
>> + cycle_time = id[ATA_ID_EIDE_PIO_IORDY];
>> + else
>> + cycle_time = id[ATA_ID_EIDE_PIO];
>> +
>> + /* conservative "downgrade" for all pre-ATA2 drives */
>> + if (pio < 3 && cycle_time < t->cycle)
>> + cycle_time = 0; /* use standard timing */
>> + }
>> +
>> + if (!cycle_time)
>> + cycle_time = t->cycle;
>
> This seems like a helper needed by libata in general but OK...

No, the build bot had already reported the problem with 'cycle_time' here,
I just forgot about it.

[...]
>
> Well, no serious issues found, so you can stamp:
>
> Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>

Too early, it seems... :-)

MBR, Sergei