Release 4.7 drivers/clk/st/clkgen.h

/************************************************************************
File  : Clock H/w specific Information

Author: Pankaj Dev <pankaj.dev@st.com>

Copyright (C) 2014 STMicroelectronics
************************************************************************/

#ifndef __CLKGEN_INFO_H

#define __CLKGEN_INFO_H

extern spinlock_t clkgen_a9_lock;


struct clkgen_field {
	
unsigned int offset;
	
unsigned int mask;
	
unsigned int shift;
};



static inline unsigned long clkgen_read(void __iomem	*base,
					  struct clkgen_field *field)
{
	return (readl(base + field->offset) >> field->shift) & field->mask;
}


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static inline void clkgen_write(void __iomem *base, struct clkgen_field *field,
				  unsigned long val)
{
	writel((readl(base + field->offset) &
	       ~(field->mask << field->shift)) | (val << field->shift),
	       base + field->offset);

	return;
}

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#define CLKGEN_FIELD(_offset, _mask, _shift) {               \
                                .offset = _offset,      \
                                .mask   = _mask,        \
                                .shift  = _shift,       \
                                }


#define CLKGEN_READ(pll, field) clkgen_read(pll->regs_base, \
                &pll->data->field)


#define CLKGEN_WRITE(pll, field, val) clkgen_write(pll->regs_base, \
                &pll->data->field, val)

#endif /*__CLKGEN_INFO_H*/

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Directory: drivers/clk/st

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