Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 4fad5c47 authored by Hans de Goede's avatar Hans de Goede Committed by Mauro Carvalho Chehab
Browse files

[media] radio-tea5777.c: Get rid of do_div usage 



freq fits easily into 32 bits until it gets shifted, so make it 32 bits,
and cast it to 64 bits before shifting.

[mchehab@redhat.com: also remove asm/div64.h header, as this is not
 needed anymore]
Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent fc488517

drivers/media/radio/radio-tea5777.c

+5 −7
Original line number Diff line number Diff line
@@ -33,7 +33,6 @@ 
#include <media/v4l2-fh.h>

#include <media/v4l2-ioctl.h>

#include <media/v4l2-event.h>

#include <asm/div64.h>

#include "radio-tea5777.h"



MODULE_AUTHOR("Hans de Goede <perex@perex.cz>");
@@ -155,18 +154,17 @@ static u32 tea5777_freq_to_v4l2_freq(struct radio_tea5777 *tea, u32 freq) 


static int radio_tea5777_set_freq(struct radio_tea5777 *tea)

{

	u64 freq;

	u32 freq;

	int res;



	freq = clamp_t(u32, tea->freq,

		       TEA5777_FM_RANGELOW, TEA5777_FM_RANGEHIGH) + 8;

	do_div(freq, 16); /* to kHz */

		       TEA5777_FM_RANGELOW, TEA5777_FM_RANGEHIGH);

	freq = (freq + 8) / 16; /* to kHz */



	freq -= TEA5777_FM_IF;

	do_div(freq, TEA5777_FM_FREQ_STEP);

	freq = (freq - TEA5777_FM_IF) / TEA5777_FM_FREQ_STEP;



	tea->write_reg &= ~(TEA5777_W_FM_PLL_MASK | TEA5777_W_FM_FREF_MASK);

	tea->write_reg |= freq << TEA5777_W_FM_PLL_SHIFT;

	tea->write_reg |= (u64)freq << TEA5777_W_FM_PLL_SHIFT;

	tea->write_reg |= TEA5777_W_FM_FREF_VALUE << TEA5777_W_FM_FREF_SHIFT;



	res = tea->ops->write_reg(tea, tea->write_reg);