On 19/08/2019 05:39, Vignesh Raghavendra wrote:
Hi,
On 16/08/19 3:50 PM, John Garry wrote:
On 06/08/2019 17:40, Schrempf Frieder wrote:
[...]
Hi,
Could someone kindly advise on the following:
Hi Vignesh,
I am looking at ACPI support only for an mtd spi nor driver we're
targeting for mainline support.
If its a new driver, please add it under drivers/spi implementing SPI
MEM framework.
There are few drivers under drivers/spi that can be used as example.
(Search for "spi_mem_ops"
Ok, fine. I note that in doing this I would still be using the spi nor
framework indirectly through the m25p80 driver.
So for the host, I could use a proprietary HID in the DSDT for matching
in the kernel driver.
About the child spi flash devices, is the recommendation to just use
PRP0001 HID and "jedec,spi-nor" compatible?
I am not quite familiar with ACPI systems, but child flash device should
use "jedec,spi-nor" as compatible.
Right, so to use SPI MEM framework, it looks like I will have to use
PRP0001 and "jedec,spi-nor" as compatible.
My reluctance in using PRP0001 and compatible "jedec,spi-nor" is how
other OS can understand this.
All the best,
John
Regards
Vignesh
thanks,
John
