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* Atmel at91sam9x5ek wm8731 audio complex

Required properties:
  - compatible: "atmel,sam9x5-wm8731-audio"
  - atmel,model: The user-visible name of this sound complex.
  - atmel,ssc-controller: The phandle of the SSC controller
  - atmel,audio-codec: The phandle of the WM8731 audio codec
  - atmel,audio-routing: A list of the connections between audio components.
    Each entry is a pair of strings, the first being the connection's sink,
    the second being the connection's source.

Available audio endpoints for the audio-routing table:

Board connectors:
 * Headphone Jack
 * Line In Jack

wm8731 pins:
cf Documentation/devicetree/bindings/sound/wm8731.txt

Example:
sound {
	compatible = "atmel,sam9x5-wm8731-audio";

	atmel,model = "wm8731 @ AT91SAM9X5EK";

	atmel,audio-routing =
		"Headphone Jack", "RHPOUT",
		"Headphone Jack", "LHPOUT",
		"LLINEIN", "Line In Jack",
		"RLINEIN", "Line In Jack";

	atmel,ssc-controller = <&ssc0>;
	atmel,audio-codec = <&wm8731>;
};
EPARE event and this happens before we set up xen_vcpu_id mapping in xen_starting_cpu. Temporary fix the issue by setting direct Linux CPU id <-> Xen vCPU id mapping for all possible CPUs at boot. We don't currently support kexec/kdump on Xen/ARM so these ids always match. In future, we have several ways to solve the issue, e.g.: - Eliminate all hypercalls from CPU_UP_PREPARE, do them from the starting CPU. This can probably be done for both x86 and ARM and, if done, will allow us to get Xen's idea of vCPU id from CPUID/MPIDR on the starting CPU directly, no messing with ACPI/device tree required. - Save vCPU id information from ACPI/device tree on ARM and use it to initialize xen_vcpu_id mapping. This is the same trick we currently do on x86. Reported-by: Julien Grall <julien.grall@arm.com> Tested-by: Wei Chen <Wei.Chen@arm.com> Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Acked-by: Stefano Stabellini <sstabellini@kernel.org> Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Diffstat (limited to 'Documentation')