[PATCH 1/6] MIPS/malta: simplify plat_setup_iocoherency

[Christoph Hellwig]

Merge plat_enable_iocoherency into plat_setup_iocoherency to simplify
the code a bit.

Signed-off-by: Christoph Hellwig <h...@lst.de>
---
 arch/mips/mti-malta/malta-setup.c | 17 ++++++-----------
 1 file changed, 6 insertions(+), 11 deletions(-)

diff --git a/arch/mips/mti-malta/malta-setup.c 
b/arch/mips/mti-malta/malta-setup.c
index e1fb8b5349447e..f3fec5a5a07c76 100644
--- a/arch/mips/mti-malta/malta-setup.c
+++ b/arch/mips/mti-malta/malta-setup.c
@@ -90,7 +90,7 @@ static void __init fd_activate(void)
 }
 #endif
 
-static int __init plat_enable_iocoherency(void)
+static void __init plat_setup_iocoherency(void)
 {
        int supported = 0;
        u32 cfg;
@@ -118,19 +118,13 @@ static int __init plat_enable_iocoherency(void)
                /* Nothing special needs to be done to enable coherency */
                pr_info("CMP IOCU detected\n");
                cfg = __raw_readl((u32 *)CKSEG1ADDR(ROCIT_CONFIG_GEN0));
-               if (!(cfg & ROCIT_CONFIG_GEN0_PCI_IOCU)) {
+               if (cfg & ROCIT_CONFIG_GEN0_PCI_IOCU)
+                       supported = 1;
+               else
                        pr_crit("IOCU OPERATION DISABLED BY SWITCH - DEFAULTING 
TO SW IO COHERENCY\n");
-                       return 0;
-               }
-               supported = 1;
        }
-       hw_coherentio = supported;
-       return supported;
-}
 
-static void __init plat_setup_iocoherency(void)
-{
-       if (plat_enable_iocoherency()) {
+       if (supported)
                if (coherentio == IO_COHERENCE_DISABLED)
                        pr_info("Hardware DMA cache coherency disabled\n");
                else
@@ -141,6 +135,7 @@ static void __init plat_setup_iocoherency(void)
                else
                        pr_info("Software DMA cache coherency enabled\n");
        }
+       hw_coherentio = supported;
 }
 
 static void __init pci_clock_check(void)
-- 
2.29.2