OMAP2+: PRM: add register access functions for VC/VP

On OMAP3+, the voltage controller (VC) and voltage processor (VP) are
inside the PRM.  Add some PRM helper functions for register access to
these module registers.

Thanks to Nishanth Menon for finding/fixing a sparse problem.

Cc: Nishanth Menon <nm@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/prm44xx.h b/arch/arm/mach-omap2/prm44xx.h
index b28c87dcbfa1..3d66ccd849d2 100644
--- a/arch/arm/mach-omap2/prm44xx.h
+++ b/arch/arm/mach-omap2/prm44xx.h
@@ -755,6 +755,14 @@ extern u32 omap4_prm_rmw_inst_reg_bits(u32 mask, u32 bits, s16 inst, s16 idx);
 u32 omap4_prm_vp_check_txdone(u8 vp_id);
 void omap4_prm_vp_clear_txdone(u8 vp_id);
 
+/*
+ * OMAP4 access functions for voltage controller (VC) and
+ * voltage proccessor (VP) in the PRM.
+ */
+extern u32 omap4_prm_vcvp_read(u8 offset);
+extern void omap4_prm_vcvp_write(u32 val, u8 offset);
+extern u32 omap4_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset);
+
 # endif
 
 #endif