From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hans de Goede Subject: Re: [linux-sunxi] Re: [PATCH] ARM: dts: sun4i: Add dts file for the pov protab2-ips9 tablet Date: Mon, 7 Sep 2015 11:30:03 +0200 Message-ID: <55ED591B.7050705@redhat.com> References: <1441441319-10658-1-git-send-email-hdegoede@redhat.com> <20150906163023.GR31584@lukather> <55ED3739.609@redhat.com> <1441612142.14422.34.camel@plaes.org> <55ED4F8F.6080502@redhat.com> <1441617262.21530.4.camel@plaes.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1441617262.21530.4.camel-q/aMd4JkU83YtjvyW6yDsg@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Priit Laes , Maxime Ripard Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, devicetree , linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org List-Id: devicetree@vger.kernel.org Hi, On 07-09-15 11:14, Priit Laes wrote: > On Mon, 2015-09-07 at 10:49 +0200, Hans de Goede wrote: >> Hi, >> >> On 07-09-15 09:49, Priit Laes wrote: >>> On Mon, 2015-09-07 at 09:05 +0200, Hans de Goede wrote: >>>> Hi, >>>> >>>> On 06-09-15 18:30, Maxime Ripard wrote: >>>>> On Sat, Sep 05, 2015 at 10:21:59AM +0200, Hans de Goede wrote: >>>>>> The Point of View protab2-ips9 is a tablet with a 9" ips >>>>>> 1024x768 >>>>>> lcd screen, >>>>>> microsd slot, headphones, mini hdmi, mini usb b and power >>>>>> barrel >>>>>> connectors. >>>>>> >>>>>> It uses a rtl8188cus usb wifi chip and a RDA 5875Y bluetooth >>>>>> chip >>>>>> attached >>>>>> to uart2. It has a bma250 accelerometer attached to i2c1 addr >>>>>> 0x18. >>>>>> >>> >>> [...] >>>>> >>>>> What is connected on i2c1 ? Just the camera sensor? or it has >>>>> some >>>>> other devices there? >>>> >>>> The bma250 accelerometer sits there, and the kernel already has a >>>> driver >>>> for it. That driver needs to have devicetree binding support >>>> added, >>>> and >>>> then we should be able to use the accelerometer. >>> >>> bma250 already has devicetree support. It is used in Gemei G9 >>> tablet >>> (sun4i-gemei-g9.dts). >> >> Yes I've seen that, but does it actually work? I've not tried but I >> do not see any compatible string in the actual bma250 code in the >> kernel, >> so I believe that this part of the sun4i-gemei-g9.dts file does not >> work ? > > It worked (even without IRQs) when I submitted the patch. Driver itself > is under iio/accel/bma180.c That is really weird, because: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/iio/accel/bma180.c Does not have an of_match_table ... ?? Regards, Hans -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html