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atomisp: fix __udiv warning 

Certain combinations of compiler and compiler options product an imx.o that
calls compiler helpers for a u64 divide. Use the do_div() call instead.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
hifive-unleashed-5.1
Alan Cox 2017-03-06 11:48:30 +00:00 committed by Greg Kroah-Hartman
parent 34ff6c2fe3
commit 91b0faa50c
1 changed files with 4 additions and 3 deletions
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7
drivers/staging/media/atomisp/i2c/imx/imx.c
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@ -819,13 +819,14 @@ static int imx_get_intg_factor(struct i2c_client *client,
if (dev->sensor_id == IMX132_ID || dev->sensor_id == IMX208_ID)
vt_pix_clk_freq_mhz = ext_clk_freq_hz / div;
else if (dev->sensor_id == IMX227_ID)
else if (dev->sensor_id == IMX227_ID) {
/* according to IMX227 datasheet:
* vt_pix_freq_mhz = * num_of_vt_lanes(4) * ivt_pix_clk_freq_mhz
*/
vt_pix_clk_freq_mhz =
(u64)4 * ext_clk_freq_hz * pll_multiplier / div;
else
(u64)4 * ext_clk_freq_hz * pll_multiplier;
do_div(vt_pix_clk_freq_mhz, div);
} else
vt_pix_clk_freq_mhz = 2 * ext_clk_freq_hz / div;
vt_pix_clk_freq_mhz *= pll_multiplier;