drm/i915: Use 64-bit division macro

Guru Das Srinagesh · thierryreding · commit 899c537c25f9 · 2020-06-16T11:16:07.000+02:00
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 &lt;gurus@codeaurora.org&gt;
Reviewed-by: Jani Nikula &lt;jani.nikula@intel.com&gt;
Acked-by: Jani Nikula &lt;jani.nikula@intel.com&gt;
Signed-off-by: Thierry Reding &lt;thierry.reding@gmail.com&gt;
diff --git 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);

Original file line number	Diff line number	Diff line change
`@@ -1929,7 +1929,7 @@ static int pwm_setup_backlight(struct intel_connector *connector,`
`1929`	`1929`	`return retval;`
`1930`	`1930`	`}`
`1931`	`1931`
`1932`		`- level = DIV_ROUND_UP(pwm_get_duty_cycle(panel->backlight.pwm) * 100,`
	`1932`	`+ level = DIV_ROUND_UP_ULL(pwm_get_duty_cycle(panel->backlight.pwm) * 100,`
`1933`	`1933`	`CRC_PMIC_PWM_PERIOD_NS);`
`1934`	`1934`	`panel->backlight.level =`
`1935`	`1935`	`intel_panel_compute_brightness(connector, level);`