From mboxrd@z Thu Jan 1 00:00:00 1970 From: maxime.ripard@free-electrons.com (Maxime Ripard) Date: Mon, 13 Apr 2015 17:59:06 +0200 Subject: [PATCH] ARM: dts: sun7i: Add Goodix GT911 nodes for Wexler TAB7200 In-Reply-To: <20150411193614.83013f345aaa1123ef55ecbf@gmail.com> References: <1427789897-4085-1-git-send-email-mamlinav@gmail.com> <20150331144338.GG23664@lukather> <20150331223120.10199bf9e3fb41b16f879eca@gmail.com> <20150402185008.GC14618@lukather> <20150411193614.83013f345aaa1123ef55ecbf@gmail.com> Message-ID: <20150413155906.GH29832@lukather> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Sat, Apr 11, 2015 at 07:36:14PM +0300, Aleksei Mamlin wrote: > On Thu, 2 Apr 2015 20:50:08 +0200 > Maxime Ripard wrote: > > > On Tue, Mar 31, 2015 at 10:31:20PM +0300, Aleksei Mamlin wrote: > > > > > + compatible = "goodix,gt911"; > > > > > + reg = <0x5d>; > > > > > + interrupt-parent = <&pio>; > > > > > + interrupts = <21 IRQ_TYPE_NONE>; /* EINT21 (PH21) */ > > > > > > > > Unfortunately, IRQ_TYPE_NONE is not a valid value for the GIC > > > > bindings. > > > > > > > > > > Hmm. Which value I must use in this case? IRQ type is set by the > > > touchscreen controller driver, so I think that value must be 0. > > > > Whatever the hardware is using. Presumably the same value than the > > driver sets. > > > > > > > > > > You're also not adding a pinctrl group for that pin? > > > > > > No, because it works fine with this DT nodes. It seems that I should > > > first configure pin to work in interrupt mode. Correct? > > > > You don't have to, since the pio driver will already take care of > > muxing it to the right function, but that will prevent any driver to > > call pinctrl_request on the same pin. > > It is still necessary? > I see that you have accepted Hans de Goede's patches: http://www.spinics.net/lists/arm-kernel/msg411142.html No, it's fine. Maxime -- Maxime Ripard, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 819 bytes Desc: Digital signature URL: