Commit 134ada17 authored Jun 02, 2020 by Guru Das Srinagesh Committed by Thierry Reding Jun 17, 2020

backlight: pwm_bl: Use 64-bit division function



Since the PWM framework is switching struct pwm_state.period's datatype
to u64, prepare for this transition by using div_u64 to handle a 64-bit
dividend instead of a straight division operation.

Signed-off-by: Guru Das Srinagesh <gurus@codeaurora.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

parent c7dcccae

drivers/video/backlight/pwm_bl.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -606,7 +606,8 @@ static int pwm_backlight_probe(struct platform_device *pdev)
		pb->scale = data->max_brightness;
		}

		pb->lth_brightness = data->lth_brightness * (state.period / pb->scale);
		pb->lth_brightness = data->lth_brightness * (div_u64(state.period,
		pb->scale));

		props.type = BACKLIGHT_RAW;
		props.max_brightness = data->max_brightness;

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