* Grygorii Strashko <grygorii.stras...@ti.com> [130717 04:49]:
> Add dynamic "active"/"idle" pin states for uart3/4 which will be applied
> when uart3/4 state is switched from active to idle and back by Runtime
> PM or during system suspend.
This is good for testing code, but should not be merged because
omap4 has the iopad wake-ups available for uarts. So those can
be always enabled.
> --- a/arch/arm/boot/dts/omap4-sdp.dts
> +++ b/arch/arm/boot/dts/omap4-sdp.dts
> @@ -181,18 +181,40 @@
> pinctrl-single,pins = <
> 0x100 (PIN_INPUT_PULLUP | MUX_MODE0) /*
> uart3_cts_rctx.uart3_cts_rctx */
> 0x102 (PIN_OUTPUT | MUX_MODE0) /*
> uart3_rts_sd.uart3_rts_sd */
> - 0x104 (PIN_INPUT | MUX_MODE0) /*
> uart3_rx_irrx.uart3_rx_irrx */
> 0x106 (PIN_OUTPUT | MUX_MODE0) /*
> uart3_tx_irtx.uart3_tx_irtx */
> >;
> };
This just need to become:
pinctrl-single,pins = <
...
0x104 (WAKEUP_EN | PIN_INPUT_MUX_MODE0) /*
uart3_rx_irrx.uart3_rx_irrx */
...
>;
interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
};
And so on. For am33xx you need to remux things to GPIO for the wake-up
events, so you should maybe test on that instead.
Regards,
Tony
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