kernel-fxtec-pro1x/arch/blackfin/mach-bf538/include/mach/pll.h
David Howells 3b139cdb37 Blackfin: Rename IRQ flags handling functions
Rename h/w IRQ flags handling functions to be in line with what is expected for
the irq renaming patch.  This renames local_*_hw() to hard_local_*() using the
following perl command:

	perl -pi -e 's/local_irq_(restore|enable|disable)_hw/hard_local_irq_\1/ or s/local_irq_save_hw([_a-z]*)[(]flags[)]/flags = hard_local_irq_save\1()/' `find arch/blackfin/ -name "*.[ch]"`

and then fixing up asm/irqflags.h manually.

Additionally, arch/hard_local_save_flags() and arch/hard_local_irq_save() both
return the flags rather than passing it through the argument list.

Signed-off-by: David Howells <dhowells@redhat.com>
2010-10-07 14:08:52 +01:00

63 lines
1.4 KiB
C

/*
* Copyright 2008-2009 Analog Devices Inc.
*
* Licensed under the GPL-2 or later.
*/
#ifndef _MACH_PLL_H
#define _MACH_PLL_H
#include <asm/blackfin.h>
#include <asm/irqflags.h>
/* Writing to PLL_CTL initiates a PLL relock sequence. */
static __inline__ void bfin_write_PLL_CTL(unsigned int val)
{
unsigned long flags, iwr0, iwr1;
if (val == bfin_read_PLL_CTL())
return;
flags = hard_local_irq_save();
/* Enable the PLL Wakeup bit in SIC IWR */
iwr0 = bfin_read32(SIC_IWR0);
iwr1 = bfin_read32(SIC_IWR1);
/* Only allow PPL Wakeup) */
bfin_write32(SIC_IWR0, IWR_ENABLE(0));
bfin_write32(SIC_IWR1, 0);
bfin_write16(PLL_CTL, val);
SSYNC();
asm("IDLE;");
bfin_write32(SIC_IWR0, iwr0);
bfin_write32(SIC_IWR1, iwr1);
hard_local_irq_restore(flags);
}
/* Writing to VR_CTL initiates a PLL relock sequence. */
static __inline__ void bfin_write_VR_CTL(unsigned int val)
{
unsigned long flags, iwr0, iwr1;
if (val == bfin_read_VR_CTL())
return;
flags = hard_local_irq_save();
/* Enable the PLL Wakeup bit in SIC IWR */
iwr0 = bfin_read32(SIC_IWR0);
iwr1 = bfin_read32(SIC_IWR1);
/* Only allow PPL Wakeup) */
bfin_write32(SIC_IWR0, IWR_ENABLE(0));
bfin_write32(SIC_IWR1, 0);
bfin_write16(VR_CTL, val);
SSYNC();
asm("IDLE;");
bfin_write32(SIC_IWR0, iwr0);
bfin_write32(SIC_IWR1, iwr1);
hard_local_irq_restore(flags);
}
#endif /* _MACH_PLL_H */