linux-kernel - [PATCH] powerpc/corenet: use the mixed mode of MPIC when enabling CPU hotplug

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Message-ID: <1437623745-21259-1-git-send-email-chenhui.zhao@freescale.com>
Date:	Thu, 23 Jul 2015 11:55:45 +0800
From:	Chenhui Zhao <chenhui.zhao@...escale.com>
To:	<linuxppc-dev@...ts.ozlabs.org>, <scottwood@...escale.com>
CC:	<linux-kernel@...r.kernel.org>, <Jason.Jin@...escale.com>
Subject: [PATCH] powerpc/corenet: use the mixed mode of MPIC when enabling CPU hotplug

Core reset may cause issue if using the proxy mode of MPIC.
Use the mixed mode of MPIC if enabling CPU hotplug.

Signed-off-by: Chenhui Zhao <chenhui.zhao@...escale.com>
---
 arch/powerpc/platforms/85xx/corenet_generic.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/powerpc/platforms/85xx/corenet_generic.c b/arch/powerpc/platforms/85xx/corenet_generic.c
index bd839dc..0119224 100644
--- a/arch/powerpc/platforms/85xx/corenet_generic.c
+++ b/arch/powerpc/platforms/85xx/corenet_generic.c
@@ -212,7 +212,15 @@ define_machine(corenet_generic) {
 	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
 	.pcibios_fixup_phb      = fsl_pcibios_fixup_phb,
 #endif
+/*
+ * Core reset may cause issue if using the proxy mode of MPIC.
+ * So, use the mixed mode of MPIC if enabling CPU hotplug.
+ */
+#ifdef CONFIG_HOTPLUG_CPU
+	.get_irq		= mpic_get_irq,
+#else
 	.get_irq		= mpic_get_coreint_irq,
+#endif
 	.restart		= fsl_rstcr_restart,
 	.calibrate_decr		= generic_calibrate_decr,
 	.progress		= udbg_progress,
-- 
1.9.1

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