On Monday, July 20, 2015 at 08:45:21 AM, Stefan Wahren wrote: > Hi Marek, Hi! > Am 20.07.2015 um 00:12 schrieb Marek Vasut: > > On Monday, July 20, 2015 at 12:04:58 AM, Stefan Wahren wrote: > >> This patch brings read-only support for the On-Chip OTP cells > >> in the i.MX23 and i.MX28 processor. The driver implements the > >> new NVMEM provider API. > >> > >> Signed-off-by: Stefan Wahren <stefan.wahren@xxxxxxxx> > > > > How come this driver isn't doing any manipulation with the VDDIO > > voltage -- or did I miss that? I seem to remember that the VDDIO > > had to be lowered to 2.8V before the fuses could be programmed > > and restored to 3.3V afterward. See for example recent mainline > > u-boot, drivers/misc/mxs_ocotp.c . > > Why should the driver implement VDDIO manipulation when there is only > read-only support for the OTP bits? There is no ambition to implement > write support. Maybe i should clarify that in the comments. Urm, sorry, I missed that read-only part. I apologize. > Btw i'm on your side that because programming the OTP from userspace is > to dangerous. :) Best regards, Marek Vasut -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
