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staging: sm750fb: replace roundedDiv with DIV_ROUND_CLOSEST 

Replace local implementation of rounded division (roundedDiv macro) with
the in-kernel implementation (DIV_ROUND_CLOSEST macro) in ddk750_chip.c

Signed-off-by: Moshe Green <mgmoshes@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
hifive-unleashed-5.1
Moshe Green 2016-10-02 14:04:46 +03:00 committed by Greg Kroah-Hartman
parent 35e4d8ca05
commit 42f8f2184b
1 changed files with 2 additions and 4 deletions
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6
drivers/staging/sm750fb/ddk750_chip.c
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@ -6,8 +6,6 @@
#include "ddk750_chip.h"
#include "ddk750_power.h"
/* n / d + 1 / 2 = (2n + d) / 2d */
#define roundedDiv(num, denom) ((2 * (num) + (denom)) / (2 * (denom)))
#define MHz(x) ((x) * 1000000)
logical_chip_type_t sm750_get_chip_type(void)
@ -102,7 +100,7 @@ static void setMemoryClock(unsigned int frequency)
frequency = MHz(336);
/* Calculate the divisor */
divisor = roundedDiv(get_mxclk_freq(), frequency);
divisor = DIV_ROUND_CLOSEST(get_mxclk_freq(), frequency);
/* Set the corresponding divisor in the register. */
reg = PEEK32(CURRENT_GATE) & ~CURRENT_GATE_M2XCLK_MASK;
@ -152,7 +150,7 @@ static void setMasterClock(unsigned int frequency)
frequency = MHz(190);
/* Calculate the divisor */
divisor = roundedDiv(get_mxclk_freq(), frequency);
divisor = DIV_ROUND_CLOSEST(get_mxclk_freq(), frequency);
/* Set the corresponding divisor in the register. */
reg = PEEK32(CURRENT_GATE) & ~CURRENT_GATE_MCLK_MASK;