powerpc/ipic: drop unused functions

ipic_set_highest_priority(), ipic_enable_mcp() and ipic_disable_mcp()
are unused. This patch drops them.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/include/asm/ipic.h

@@ -69,10 +69,7 @@ enum ipic_mcp_irq {
 	IPIC_MCP_MU   = 7,
 };
 
-extern void ipic_set_highest_priority(unsigned int irq);
 extern void ipic_set_default_priority(void);
-extern void ipic_enable_mcp(enum ipic_mcp_irq mcp_irq);
-extern void ipic_disable_mcp(enum ipic_mcp_irq mcp_irq);
 extern u32 ipic_get_mcp_status(void);
 extern void ipic_clear_mcp_status(u32 mask);
 

arch/powerpc/sysdev/ipic.c

@@ -771,21 +771,6 @@ struct ipic * __init ipic_init(struct device_node *node, unsigned int flags)
 	return ipic;
 }
 
-void ipic_set_highest_priority(unsigned int virq)
-{
-	struct ipic *ipic = ipic_from_irq(virq);
-	unsigned int src = virq_to_hw(virq);
-	u32 temp;
-
-	temp = ipic_read(ipic->regs, IPIC_SICFR);
-
-	/* clear and set HPI */
-	temp &= 0x7f000000;
-	temp |= (src & 0x7f) << 24;
-
-	ipic_write(ipic->regs, IPIC_SICFR, temp);
-}
-
 void ipic_set_default_priority(void)
 {
 	ipic_write(primary_ipic->regs, IPIC_SIPRR_A, IPIC_PRIORITY_DEFAULT);
@@ -796,26 +781,6 @@ void ipic_set_default_priority(void)
 	ipic_write(primary_ipic->regs, IPIC_SMPRR_B, IPIC_PRIORITY_DEFAULT);
 }
 
-void ipic_enable_mcp(enum ipic_mcp_irq mcp_irq)
-{
-	struct ipic *ipic = primary_ipic;
-	u32 temp;
-
-	temp = ipic_read(ipic->regs, IPIC_SERMR);
-	temp |= (1 << (31 - mcp_irq));
-	ipic_write(ipic->regs, IPIC_SERMR, temp);
-}
-
-void ipic_disable_mcp(enum ipic_mcp_irq mcp_irq)
-{
-	struct ipic *ipic = primary_ipic;
-	u32 temp;
-
-	temp = ipic_read(ipic->regs, IPIC_SERMR);
-	temp &= (1 << (31 - mcp_irq));
-	ipic_write(ipic->regs, IPIC_SERMR, temp);
-}
-
 u32 ipic_get_mcp_status(void)
 {
 	return primary_ipic ? ipic_read(primary_ipic->regs, IPIC_SERSR) : 0;