On 19 August 2013 13:48, Vikas Sajjan <vikas.sajjan@xxxxxxxxxx> wrote: > Hi Kukjin, > > On 19 August 2013 00:10, Kukjin Kim <kgene.kim@xxxxxxxxxxx> wrote: >> On 08/15/13 17:59, Tomasz Figa wrote: >>> >>> Hi Tushar, >>> >> [...] >> >> >>>>> + status = "okay"; >>>>> >>>>> }; >>>> >>>> >>>> Sometime back we had a discussion on this, the decision was to enable >>>> it in respective boards. >>> >>> >>> This is not entirely true. >>> >>> According to ePAPR, chapter 2.3.4, the status property has a well defined >>> meaning and it should be set to "disabled" when "the device is not >>> presently operational, but it might become operational in the future (for >>> example, something is not plugged in, or switched off)". >>> Ok. >> So in my understanding, you mean using "okay" is wrong and only "disabled" >> is used? and in board dt file? Already there are too many "okay"... >> >> >>> This means that unless setup of the device is missing something (e.g. >>> board-specific properties, like regulators or pin config) or there is a >>> valid technical reason for disabling the device by default (e.g. it needs >>> certain SoC pins to be properly connected to something), then such device >>> should be "okay", because it is operational. >>> >>>> Also if we are going ahead with this, we would need to remove the >>>> corresponding status statements from board files. >>> >>> >>> Yes, this is true. >>> >> According to above, probably we should add "disabled" in board dt file? >> > > what Tushar meant was, since we made the status as "okay" in > exynos5250.dtsi itself, its better to remove the "okay" from the board > DTS files of exynos5250 ( exynos5250-snow.dts and > exynos5250-arndale.dts). Am I right Tushar? > Yeah. Since we are going ahead with enabling the RTC node in exynos5250.dtsi, I thought it would be good to remove the RTC nodes from subsequent board files. > >> If I'm wrong, correct me. >> >> (+ dt ml) >> >> Anyway, I'm not sure how to use 'okay' and 'disabled' for status... >> >> I think, every hardware information should be defined in SoC dt file and >> maybe some of them could be set disabled or okay in each board dt file... >> >> Any suggestions? >> >> Thanks, >> Kukjin > > > > -- > Thanks and Regards > Vikas Sajjan -- Tushar Behera -- 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
