mfd: add DB5500 PRCMU driver

This adds the DB5500 PRCMU driver. Right now this one is pretty
restricted in functionality, exposing a simple interface to send
I2C messages.

Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

2 files changed, 4 insertions, 0 deletions

diff --git a/arch/arm/mach-ux500/Kconfig b/arch/arm/mach-ux500/Kconfig
index 8071d2746f70..365c4c35faa7 100644
--- a/arch/arm/mach-ux500/Kconfig
+++ b/arch/arm/mach-ux500/Kconfig
@@ -12,6 +12,7 @@ menu "Ux500 SoC"
 
 config UX500_SOC_DB5500
         bool "DB5500"
+        select MFD_DB5500_PRCMU
 
 config UX500_SOC_DB8500
         bool "DB8500"
diff --git a/arch/arm/mach-ux500/cpu.c b/arch/arm/mach-ux500/cpu.c
index 11360f734cec..1da23bb87c16 100644
--- a/arch/arm/mach-ux500/cpu.c
+++ b/arch/arm/mach-ux500/cpu.c
@@ -9,6 +9,7 @@
 #include <linux/io.h>
 #include <linux/clk.h>
 #include <linux/mfd/db8500-prcmu.h>
+#include <linux/mfd/db5500-prcmu.h>
 
 #include <asm/cacheflush.h>
 #include <asm/hardware/cache-l2x0.h>
@@ -49,6 +50,8 @@ void __init ux500_init_irq(void)
          * Init clocks here so that they are available for system timer
          * initialization.
          */
+        if (cpu_is_u5500())
+                db5500_prcmu_early_init();
         if (cpu_is_u8500())
                 prcmu_early_init();
         clk_init();