* Peter Ujfalusi <peter.ujfalusi@xxxxxx> [160509 01:36]:
> On 05/05/16 21:56, Tony Lindgren wrote:
> > Playing audio works on omap5-uevm, but produces an "Unhandled fault:
> > imprecise external abort (0x1406) at 0x00000000" error on igepv5.
> >
> > Looks like the twl6040 audpwron GPIO pin is different for these
> > boards. Let's fix the issue by configuring the audpwron in the
> > board specific dts file.
> >
> > Cc: Agustí Fontquerni <af@xxxxxxxxxxx>
> > Cc: Eduard Gavin <egavin@xxxxxxxxxxx>
> > Cc: Enric Balletbo i Serra <eballetbo@xxxxxxxxxxx>
> > Cc: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
> > Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx>
> > ---
> > arch/arm/boot/dts/omap5-board-common.dtsi | 3 ++-
> > arch/arm/boot/dts/omap5-igep0050.dts | 10 ++++++++++
> > arch/arm/boot/dts/omap5-uevm.dts | 10 ++++++++++
> > 3 files changed, 22 insertions(+), 1 deletion(-)
> >
> > diff --git a/arch/arm/boot/dts/omap5-board-common.dtsi b/arch/arm/boot/dts/omap5-board-common.dtsi
> > index 2eea26c..23b1d7c 100644
> > --- a/arch/arm/boot/dts/omap5-board-common.dtsi
> > +++ b/arch/arm/boot/dts/omap5-board-common.dtsi
> > @@ -642,7 +642,8 @@
> > pinctrl-0 = <&twl6040_pins>;
> >
> > interrupts = <GIC_SPI 119 IRQ_TYPE_NONE>; /* IRQ_SYS_2N cascaded to gic */
> > - ti,audpwron-gpio = <&gpio5 13 GPIO_ACTIVE_HIGH>; /* gpio line 141 */
> > +
> > + /* audpwron gpio defined in the board specific dts */
> >
> > vio-supply = <&smps7_reg>;
> > v2v1-supply = <&smps9_reg>;
> > diff --git a/arch/arm/boot/dts/omap5-igep0050.dts b/arch/arm/boot/dts/omap5-igep0050.dts
> > index 72ff6a4..673cdfa 100644
> > --- a/arch/arm/boot/dts/omap5-igep0050.dts
> > +++ b/arch/arm/boot/dts/omap5-igep0050.dts
> > @@ -58,3 +58,13 @@
> > <&gpio7 3 0>; /* 195, SDA */
> > };
> >
> > +&twl6040 {
> > + ti,audpwron-gpio = <&gpio5 16 GPIO_ACTIVE_HIGH>; /* gpio line 144 */
>
> BTW: how do you know that gpio144 is used as audpwron GPIO on igepv5?
>From looking at the ISEE git tree. But it would be best for the ISEE guys
to review the patch.
> > +};
> > +
> > +&twl6040_pins {
> > + pinctrl-single,pins = <
> > + OMAP5_IOPAD(0x1c4, PIN_OUTPUT | MUX_MODE6) /* mcspi1_somi.gpio5_144 */
> > + OMAP5_IOPAD(0x1ca, PIN_OUTPUT | MUX_MODE6) /* perslimbus2_clock.gpio5_145 */
>
> What does the gpio145 is used for?
No idea without seeing the schematics, also from ISEE git tree so should
be reviewed.
Regards,
Tony
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