Messages in this thread | | | Date | Wed, 21 Jan 2015 13:02:04 +0000 | From | Lee Jones <> | Subject | Re: [PATCH v3 08/13] mtd: st_spi_fsm: Update the JEDEC probe to handle extended READIDs |
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On Mon, 12 Jan 2015, Brian Norris wrote:
> On Mon, Dec 15, 2014 at 11:59:15AM +0000, Lee Jones wrote: > > The previous code was based on 3-byte JEDEC IDs, with a possible 2-byte > > extension. However, devices are now emerging that return 6 or more bytes of > > READID data and the additional bytes are required to differentiate between > > variants or generations of similar devices. > > > > This patch refactors the device table and JEDEC probe code to handle arbitrary > > length READIDs, with the standard JEDEC definition now becoming a special case. > > Functionally, there should be no change in behaviour. A subsequent patch will > > update the table with extended READIDs where applicable. > > BTW, how's that promise going, where you work on adapting this driver to > the spi-nor framework? We've already done some of this same work there.
I have pushed this point within ST and someone has agreed to do the work. Last I heard it relied on these patches, but I'll ask again.
> > +#define RDID(...) __VA_ARGS__ /* Dummy macro to protect array argument. */ > > What? What needs "protected"?
You're asking me questions I can't answer I'm afraid and Angus has now left the building. I guess he thinks __VA_ARGS__ will prevent some kind of overflow?
-- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog
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