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?
> +};
> +
> +&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?
> + >;
> +};
> diff --git a/arch/arm/boot/dts/omap5-uevm.dts b/arch/arm/boot/dts/omap5-uevm.dts
> index 60b3fbb..a51e605 100644
> --- a/arch/arm/boot/dts/omap5-uevm.dts
> +++ b/arch/arm/boot/dts/omap5-uevm.dts
> @@ -51,3 +51,13 @@
> <&gpio9 1 GPIO_ACTIVE_HIGH>, /* TCA6424A P00, LS OE */
> <&gpio7 1 GPIO_ACTIVE_HIGH>; /* GPIO 193, HPD */
> };
> +
> +&twl6040 {
> + ti,audpwron-gpio = <&gpio5 13 GPIO_ACTIVE_HIGH>; /* gpio line 141 */
> +};
> +
> +&twl6040_pins {
> + pinctrl-single,pins = <
> + OMAP5_IOPAD(0x1be, PIN_OUTPUT | MUX_MODE6) /* mcspi1_somi.gpio5_141 */
> + >;
> +};
>
--
Péter
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