[PATCH 1/3] powerpc: ipic: Fix mcp status helper functions

From: esben . haabendal
Date: Tue Jan 06 2015 - 06:27:17 EST


From: Esben Haabendal <eha@xxxxxxxx>

Read and write the SERSR (System Error Status Register) instead of the
SERMR (System Error Mask Register), to actually get and clear the status
bits.

Signed-off-by: Esben Haabendal <eha@xxxxxxxx>
---
arch/powerpc/sysdev/ipic.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/sysdev/ipic.c b/arch/powerpc/sysdev/ipic.c
index b287337..2e41a73 100644
--- a/arch/powerpc/sysdev/ipic.c
+++ b/arch/powerpc/sysdev/ipic.c
@@ -843,12 +843,12 @@ void ipic_disable_mcp(enum ipic_mcp_irq mcp_irq)

u32 ipic_get_mcp_status(void)
{
- return ipic_read(primary_ipic->regs, IPIC_SERMR);
+ return ipic_read(primary_ipic->regs, IPIC_SERSR);
}

void ipic_clear_mcp_status(u32 mask)
{
- ipic_write(primary_ipic->regs, IPIC_SERMR, mask);
+ ipic_write(primary_ipic->regs, IPIC_SERSR, mask);
}

/* Return an interrupt vector or NO_IRQ if no interrupt is pending. */
--
2.1.4

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