On Wed, 15 Mar 2017 09:35:29 -0400 Tom Rini <tr...@konsulko.com> wrote:
> On Wed, Mar 15, 2017 at 11:07:34AM +0100, Lukasz Majewski wrote: > > On Tue, 14 Mar 2017 09:22:02 -0400 > > Tom Rini <tr...@konsulko.com> wrote: > > > > > On Fri, Mar 10, 2017 at 11:40:27PM +0100, Lukasz Majewski wrote: > > > > > > > This patch adds code, which comply with TPS65903X errata > > > > pseudocode described in SLIA087 - "Guide to Using the GPADC in > > > > TPS65903x and TPS6591x Devices". > > > > > > > > It is enabled by proper Kconfig option, when TI's palmas PMIC > > > > support is added. > > > > > > > > The TI's e2e thread with test procedure description: > > > > https://e2e.ti.com/support/power_management/pmu/f/200/p/579649/2130910#2130910 > > > > > > > > Signed-off-by: Lukasz Majewski <lu...@denx.de> > > > > > > I assume you have hardware that also uses this, so please submit > > > with it as it's not clear to me when the errata function you add > > > should be called. > > > > I'm working on AM57xx based system, which will utilize this. > > > > I wanted to share it early, since it might take some time to make > > the "devel" code suitable for ML. > > > > Nonetheless, other TI boards can use those fixes if they use this > > type of PMIC (TPS65903x) despite the lack of my board in ML. > > So, the am57xx EVMs, the dra7xx EVMs and the am57xx compulab SoM? Yes, if they use this PMIC > I > assume you have at least one of the TI EVMs, can you enable it there > and show how it would be used? I had one of them. Now I do have only my custom board(s). > Is there a case where we would not > want to be enabling this errata? This errata is about GPACD - General Purpose Analog Digital Converter in PMIC. It is not critical for system booting, but can save some high-level user's stress when enabled. For example - he/she will not have to do "dummy" read to have correct ADC values in the user space Linux program after booting. > Thanks! > I've added it to int board_late_init(void) { .... ret = tps65903x_errata(); if (ret) return ret; .... } Best regards, Lukasz Majewski -- DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de
pgpnHdRNd6Oxi.pgp
Description: OpenPGP digital signature
_______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
