From ed24157ede901608e00f28b4897398a373e1e926 Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Thu, 27 Aug 2009 07:35:50 +0000 Subject: powerpc/qe: Implement qe_alive_during_sleep() helper function In some CPUs (i.e. MPC8569) QE shuts down completely during sleep, drivers may want to know that to reinitialize registers and buffer descriptors. This patch implements qe_alive_during_sleep() helper function, so far it just checks if MPC8569-compatible power management controller is present, which is a sign that QE turns off during sleep. Signed-off-by: Anton Vorontsov Signed-off-by: David S. Miller --- arch/powerpc/include/asm/qe.h | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/powerpc/include/asm/qe.h') diff --git a/arch/powerpc/include/asm/qe.h b/arch/powerpc/include/asm/qe.h index 157c5ca581c..f388f0ab193 100644 --- a/arch/powerpc/include/asm/qe.h +++ b/arch/powerpc/include/asm/qe.h @@ -154,6 +154,7 @@ int qe_get_snum(void); void qe_put_snum(u8 snum); unsigned int qe_get_num_of_risc(void); unsigned int qe_get_num_of_snums(void); +int qe_alive_during_sleep(void); /* we actually use cpm_muram implementation, define this for convenience */ #define qe_muram_init cpm_muram_init -- cgit v1.2.3