Re: [PATCH v12 09/11] backlight: pwm_bl: Use 64-bit division function
From: Lee Jones <hidden>
Date: 2020-04-16 09:43:29
Also in:
dri-devel, linux-pwm, lkml
On Wed, 08 Apr 2020, Guru Das Srinagesh wrote:
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. Cc: Lee Jones <redacted> Cc: Daniel Thompson <redacted> Cc: Jingoo Han <jingoohan1@gmail.com> Cc: Bartlomiej Zolnierkiewicz <redacted> Cc: linux-pwm@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: linux-fbdev@vger.kernel.org Signed-off-by: Guru Das Srinagesh <redacted> Reviewed-by: Daniel Thompson <redacted> --- drivers/video/backlight/pwm_bl.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
I see that this is part of a large set, but the remainder of the patches have been hidden from me. Does this mean I can apply this patch on its own?
quoted hunk ↗ jump to hunk
diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c index efb4efc..3e5dbcf 100644 --- a/drivers/video/backlight/pwm_bl.c +++ b/drivers/video/backlight/pwm_bl.c@@ -625,7 +625,8 @@ 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;
-- Lee Jones [李琼斯] Linaro Services Technical Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog