[PATCH 14/17] mfd: db8500-prcmu: use db8500 legacy services

This patch exposes db8500 legacy services which are
now available to support new baseband.
If different are needed, then services are overloaded.
This allows to reduce duplicate code between projects.

Signed-off-by: Loic Pallardy <redacted>
Acked-by: Linus Walleij <redacted>
---
 drivers/mfd/db8500-prcmu.c | 90 +++++++++++++++++++++++-----------------------
 drivers/mfd/dbx500-prcmu.h | 71 ++++++++++++++++++++++++++++++++++++
 2 files changed, 116 insertions(+), 45 deletions(-)

diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c
index 73c98e5..b39441f 100644
--- a/drivers/mfd/db8500-prcmu.c
+++ b/drivers/mfd/db8500-prcmu.c

@@ -327,12 +327,12 @@ int db8500_prcmu_set_display_clocks(void)
        return 0;
 }
 
-static u32 db8500_prcmu_read(unsigned int reg)
+u32 db8500_prcmu_read(unsigned int reg)
 {
        return readl(_PRCMU_BASE + reg);
 }