[PATCH] ARM: at91: clock: Add missing include of asm/io.h

[Alexander Dahl]

In one inline function in this header `readl()` is used, but the
declaration was not found, so buildman gave this warning:

    w+include/asm/arch/clk.h: In function 'get_h32mxdiv':
    w+include/asm/arch/clk.h:65:16: warning: implicit declaration of function 'readl' [-Wimplicit-function-declaration]

Fixes: 927b901b47a6 ("ARM: atmel: add sama5d4ek board support")
Signed-off-by: Alexander Dahl <ada at thorsis.com>
---

Notes:
    based on next

 arch/arm/mach-at91/include/mach/clk.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-at91/include/mach/clk.h b/arch/arm/mach-at91/include/mach/clk.h
index c1d92739e47..09b8f0586c6 100644
--- a/arch/arm/mach-at91/include/mach/clk.h
+++ b/arch/arm/mach-at91/include/mach/clk.h
@@ -11,6 +11,7 @@
 #include <asm/arch/hardware.h>
 #include <asm/arch/at91_pmc.h>
 #include <asm/global_data.h>
+#include <asm/io.h>
 
 #define GCK_CSS_SLOW_CLK	0
 #define GCK_CSS_MAIN_CLK	1

base-commit: 3a0b829efc35227b1079a444f00e0729502197ad
-- 
2.39.5