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SubjectRe: [PATCH 0/6] staging: BCM2835 MMAL V4L2 camera driver
Em Mon, 20 Mar 2017 08:11:41 -0700
Michael Zoran <mzoran@crowfest.net> escreveu:

> On Mon, 2017-03-20 at 11:58 -0300, Mauro Carvalho Chehab wrote:
> > Em Mon, 20 Mar 2017 04:08:21 -0700
> > Michael Zoran <mzoran@crowfest.net> escreveu:
> >
> > > On Mon, 2017-03-20 at 07:58 -0300, Mauro Carvalho Chehab wrote:
> > > > Em Sun, 19 Mar 2017 22:11:07 -0300
> > > > Mauro Carvalho Chehab <mchehab@s-opensource.com> escreveu:
> > > >   
> > > > > Em Sun, 19 Mar 2017 10:04:28 -0700
> > > > > Michael Zoran <mzoran@crowfest.net> escreveu:
> > > > >   
> > > > > > A working DT that I tried this morning with the current
> > > > > > firmware
> > > > > > is
> > > > > > posted here:
> > > > > > http://lists.infradead.org/pipermail/linux-rpi-kernel/2017-Ma
> > > > > > rch/
> > > > > > 005924
> > > > > > .html
> > > > > >
> > > > > > It even works with minecraft_pi!    
> > > >
> > > >   
> > >
> > > Hi, can you e-mail out your config.txt?  Do you have audio enabled
> > > in
> > > config.txt?
> >
> > yes, I have this:
> >
> > $ cat config.txt |grep -i audio
> > # uncomment to force a HDMI mode rather than DVI. This can make audio
> > work in
> > # Enable audio (loads snd_bcm2835)
> > dtparam=audio=on
> >
> > Full config attached.
> >
> > Thanks,
> > Mauro
> >
>
> Are you using Eric Anholt's HDMI Audio driver that's included in VC4?
> That could well be incompatible with the firmware driver. Or are you
> using a half mode of VC4 for audio and VCHIQ for video?

I'm using vanilla staging Kernel, from Greg's tree:
https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git/commit/?h=staging-next&id=7bc49cb9b9b8bad32536c4b6d1aff1824c1adc6c

Plus the DWC2 fixup I wrote and DT changes you pointed
(see enclosed).

I can disable the audio overlay here, as I don't have anything
connected to audio inputs/outputs.

Regards,
Mauro

---


diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi
index 38e6050035bc..1f42190e8558 100644
--- a/arch/arm/boot/dts/bcm2835-rpi.dtsi
+++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi
@@ -27,6 +27,14 @@
firmware = <&firmware>;
#power-domain-cells = <1>;
};
+
+ vchiq {
+ compatible = "brcm,bcm2835-vchiq";
+ reg = <0x7e00b840 0xf>;
+ interrupts = <0 2>;
+ cache-line-size = <32>;
+ firmware = <&firmware>;
+ };
};
};

diff --git a/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts b/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts
index c309633a1e87..7e8d42904022 100644
--- a/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts
+++ b/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts
@@ -17,6 +17,45 @@
gpios = <&gpio 47 0>;
};
};
+
+
+ soc {
+
+// hvs at 7e400000 {
+// status = "disabled";
+// };
+
+// v3d: v3d at 7ec00000 {
+// status = "disabled";
+// };
+
+ vc4: gpu {
+ status = "disabled";
+ };
+
+ fb: fb {
+ status = "disabled";
+ };
+
+ vchiq: vchiq {
+ compatible = "brcm,bcm2835-vchiq";
+ reg = <0x7e00b840 0xf>;
+ interrupts = <0 2>;
+ cache-line-size = <32>;
+ firmware = <&firmware>;
+ };
+
+ audio: audio {
+ compatible = "brcm,bcm2835-audio";
+ brcm,pwm-channels = <8>;
+ };
+
+ };
+
+ __overrides__ {
+ cache_line_size = <&vchiq>, "cache-line-size:0";
+ };
+
};


Thanks,
Mauro
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