drm/i915: Use 64-bit division macro

Since the PWM framework is switching struct pwm_state.duty_cycle's
datatype to u64, prepare for this transition by using DIV_ROUND_UP_ULL
to handle a 64-bit dividend.

Signed-off-by: Guru Das Srinagesh <gurus@codeaurora.org>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

diff --git a/drivers/gpu/drm/i915/display/intel_panel.c b/drivers/gpu/drm/i915/display/intel_panel.c
index 3c5056dbf60793fda6b64132e1b86eef88901391..31cb285e8b38a9560bd8050cfc9a702111b0ddab 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_panel.c
+++ b/drivers/gpu/drm/i915/display/intel_panel.c
@@ -1929,7 +1929,7 @@ static int pwm_setup_backlight(struct intel_connector *connector,
                return retval;
        }
 
-       level = DIV_ROUND_UP(pwm_get_duty_cycle(panel->backlight.pwm) * 100,
+       level = DIV_ROUND_UP_ULL(pwm_get_duty_cycle(panel->backlight.pwm) * 100,
                             CRC_PMIC_PWM_PERIOD_NS);
        panel->backlight.level =
                intel_panel_compute_brightness(connector, level);