Andrzej/Daniel, please suggest any input on the scenario for temperature control and dsi bridge enable/disable.
On Mon, Feb 11, 2019 at 2:41 PM Vinay Simha B N <simha...@gmail.com> wrote: > dsi2hdmi(adv7511) chip operating temperature range is -10 degC to +85 > degC. We want to enable/disable the bridge only when temperature range is > inbetween these range. > > We have temperature control chip to read the temp, tLow an tHigh can be > set. whenever interrupt(alert) triggers we want to enablel/disable the > bridge. > > Any suggestion what is the better way to handle this scenario? > > regards, > vinaysimha > > On Mon, Feb 11, 2019 at 2:10 PM Daniel Vetter <dan...@ffwll.ch> wrote: > >> On Mon, Feb 11, 2019 at 09:32:54AM +0100, Andrzej Hajda wrote: >> > On 11.02.2019 07:52, Vinay Simha B N wrote: >> > > hi, >> > > >> > > is it possible to control the drm bridge from another driver in irq >> > > handler(enable/disable the bridge)? >> > >> > >> > If you mean 'in irq context' the answer is no, usually enable/disable >> > callbacks can sleep, so cannot be called from atomic context. >> > >> > >> > > >> > > is there a way to control the "dpms force off" and "dpms force on" in >> > > the interrupt handler? >> > >> > >> > Could you elaborate more on both subjects. >> >> Yeah, please explain what you want to use this for. dpms on/off is >> controlled by userspace, the kernel should not change that state behind >> usersapce's back. If this is for some manuel refresh display, then that's >> a bit a different story ofc, but for that you don't want to do a real dpms >> force off/on. >> -Daniel >> > >> > >> > Regards >> > >> > Andrzej >> > >> > >> > > >> > > -- >> > > regards, >> > > vinaysimha >> > > >> > > _______________________________________________ >> > > dri-devel mailing list >> > > dri-devel@lists.freedesktop.org >> > > https://lists.freedesktop.org/mailman/listinfo/dri-devel >> > >> > >> > _______________________________________________ >> > dri-devel mailing list >> > dri-devel@lists.freedesktop.org >> > https://lists.freedesktop.org/mailman/listinfo/dri-devel >> >> -- >> Daniel Vetter >> Software Engineer, Intel Corporation >> http://blog.ffwll.ch >> > > > -- > regards, > vinaysimha > -- regards, vinaysimha
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