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Groups > linux.kernel > #1331775
| From | Lee Jones <lee.jones@linaro.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH V1] mfd: da9062: fix missing volatile registers in the core regmap_range volatile lists |
| Date | 2016-02-11 10:20 +0100 |
| Message-ID | <r0VzR-6IR-39@gated-at.bofh.it> (permalink) |
| References | <qXpmP-5sL-35@gated-at.bofh.it> <r0Ghs-4Nm-3@gated-at.bofh.it> <r0Gr7-59L-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Wed, 10 Feb 2016, Opensource [Steve Twiss] wrote: > > On 10 February 2016 16:56, Lee Jones wrote: > > > To: Opensource [Steve Twiss] > > Cc: LINUXKERNEL; David Dajun Chen; Support Opensource > > Subject: Re: [PATCH V1] mfd: da9062: fix missing volatile registers in the core > > regmap_range volatile lists > > > > On Mon, 01 Feb 2016, Steve Twiss wrote: > > > > > From: Steve Twiss <stwiss.opensource@diasemi.com> > > > > > > Add an updated set of registers listed in the core regmap_range volatile > > > ranges defined for the DA9062. > > > > > > These new registers contain bits that cannot be considered under the full > > > control of software. Under various conditions the hardware will set and/or > > > automatically clear bit(s) contained in these registers. > > > > > > When using a cached version of regmap, the volatility of these registers must > > > be identified otherwise the regmap operations may not ensure the registers > > > are explicitly altered. > > > > > > As well as updating the list of volatile registers, this change will fix a > > > corner case discovered in the DA9063 ONKEY which is used by the DA9062 core. > > > > > > In the ONKEY case, the CONTROL_B register is now listed as volatile in the > > > regmap_range because it contains the bit field NONKEY_LOCK. This bit can be > > > altered by hardware, in which case regmap must be notified of its ability > > > to be manpiulated outside of software control. > > > > > > Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com> > > > > Applied, thanks. > > Thanks. > Regards, > Steve No need for thank yous. They're implied. ;) [... and they just account for churn in my already very busy inbox]. -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog
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Re: [PATCH V1] mfd: da9062: fix missing volatile registers in the core regmap_range volatile lists Lee Jones <lee.jones@linaro.org> - 2016-02-10 18:00 +0100
RE: [PATCH V1] mfd: da9062: fix missing volatile registers in the core regmap_range volatile lists "Opensource [Steve Twiss]" <stwiss.opensource@diasemi.com> - 2016-02-10 18:10 +0100
Re: [PATCH V1] mfd: da9062: fix missing volatile registers in the core regmap_range volatile lists Lee Jones <lee.jones@linaro.org> - 2016-02-11 10:20 +0100
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