[PATCH v5 42/46] backlight: lp8788: switch to the atomic PWM API
From: Boris Brezillon <hidden>
Date: 2016-03-30 20:06:12
Also in:
dri-devel, intel-gfx, linux-arm-kernel, linux-clk, linux-input, linux-leds, linux-pwm, linux-rockchip, linux-samsung-soc, lkml
Subsystem:
backlight class/subsystem, framebuffer layer, the rest · Maintainers:
Lee Jones, Daniel Thompson, Jingoo Han, Helge Deller, Linus Torvalds
pwm_config/enable/disable() have been deprecated and should be replaced by pwm_apply_state(). Signed-off-by: Boris Brezillon <redacted> --- drivers/video/backlight/lp8788_bl.c | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-)
diff --git a/drivers/video/backlight/lp8788_bl.c b/drivers/video/backlight/lp8788_bl.c
index 5d583d7..521c730 100644
--- a/drivers/video/backlight/lp8788_bl.c
+++ b/drivers/video/backlight/lp8788_bl.c@@ -124,16 +124,13 @@ static int lp8788_backlight_configure(struct lp8788_bl *bl) static void lp8788_pwm_ctrl(struct lp8788_bl *bl, int br, int max_br) { - unsigned int period; - unsigned int duty; struct device *dev; + struct pwm_state pstate; struct pwm_device *pwm; if (!bl->pdata) return; - period = bl->pdata->period_ns; - duty = br * period / max_br; dev = bl->lp->dev; /* request PWM device with the consumer name */
@@ -147,11 +144,15 @@ static void lp8788_pwm_ctrl(struct lp8788_bl *bl, int br, int max_br) bl->pwm = pwm; } - pwm_config(bl->pwm, duty, period); - if (duty) - pwm_enable(bl->pwm); + pwm_get_state(bl->pwm, &pstate); + pstate.period = bl->pdata->period_ns; + pstate.duty_cycle = br * pstate.period / max_br; + if (pstate.duty_cycle) + pstate.enabled = true; else - pwm_disable(bl->pwm); + pstate.enabled = false; + + pwm_apply_state(bl->pwm, &pstate); } static int lp8788_bl_update_status(struct backlight_device *bl_dev)
--
2.5.0