From mboxrd@z Thu Jan 1 00:00:00 1970 From: Krzysztof Kozlowski Subject: Re: [PATCH v4 05/24] misc: max77693-haptic: use pwm_get_xxx() helpers where appropriate Date: Mon, 16 Nov 2015 22:10:40 +0900 Message-ID: <5649D5D0.6080204@samsung.com> References: <1447664207-24370-1-git-send-email-boris.brezillon@free-electrons.com> <1447664207-24370-6-git-send-email-boris.brezillon@free-electrons.com> Reply-To: k.kozlowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Return-path: Sender: linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org In-Reply-To: <1447664207-24370-6-git-send-email-boris.brezillon-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org> List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , To: Boris Brezillon , Thierry Reding , linux-pwm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: Mike Turquette , Stephen Boyd , linux-clk-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Mark Brown , Liam Girdwood , Kamil Debski , lm-sensors-GZX6beZjE8VD60Wz+7aTrA@public.gmane.org, Jean Delvare , Guenter Roeck , Dmitry Torokhov , linux-input-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Bryan Wu , Richard Purdie , Jacek Anaszewski , linux-leds-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Maxime Ripard , Chen-Yu Tsai , linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org, Joachim Eastwood , Thomas Petazzoni , Heiko Stuebner , linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, Jingoo Han , Lee Jones , linux-fbdev@vg List-Id: linux-input@vger.kernel.org W dniu 16.11.2015 o 17:56, Boris Brezillon pisze: > Use pwm_get_xxx() helpers instead of directly accessing the pwm->xxx field. > Doing that will ease adaptation of the PWM framework to support atomic > update. > > Signed-off-by: Boris Brezillon > --- > Patch generated with the following coccinelle script: > > --->8--- > virtual patch > > @@ > struct pwm_device *p; > expression e; > @@ > ( > -(p)->polarity = e; > +pwm_set_polarity((p), e); > | > -(p)->polarity > +pwm_get_polarity((p)) > | > -(p)->period = e; > +pwm_set_period((p), e); > | > -(p)->period > +pwm_get_period((p)) > | > -(p)->duty_cycle = e; > +pwm_set_duty_cycle((p), e); > | > -(p)->duty_cycle > +pwm_get_duty_cycle((p)) > ) > --->8--- > --- > drivers/input/misc/max77693-haptic.c | 7 ++++--- > 1 file changed, 4 insertions(+), 3 deletions(-) > > diff --git a/drivers/input/misc/max77693-haptic.c b/drivers/input/misc/max77693-haptic.c > index 6d96bff..a038fb3 100644 > --- a/drivers/input/misc/max77693-haptic.c > +++ b/drivers/input/misc/max77693-haptic.c > @@ -70,10 +70,11 @@ struct max77693_haptic { > > static int max77693_haptic_set_duty_cycle(struct max77693_haptic *haptic) > { > - int delta = (haptic->pwm_dev->period + haptic->pwm_duty) / 2; > + int delta = (pwm_get_period((haptic->pwm_dev)) + haptic->pwm_duty) / 2; Double parentheses over argument are not needed so just: pwm_get_period(haptic->pwm_dev) + ... Beside that patch looks good, so with removing parentheses here and below: Reviewed-by: Krzysztof Kozlowski Best regards, Krzysztof > int error; > > - error = pwm_config(haptic->pwm_dev, delta, haptic->pwm_dev->period); > + error = pwm_config(haptic->pwm_dev, delta, > + pwm_get_period((haptic->pwm_dev))); > if (error) { > dev_err(haptic->dev, "failed to configure pwm: %d\n", error); > return error; > @@ -245,7 +246,7 @@ static int max77693_haptic_play_effect(struct input_dev *dev, void *data, > * The formula to convert magnitude to pwm_duty as follows: > * - pwm_duty = (magnitude * pwm_period) / MAX_MAGNITUDE(0xFFFF) > */ > - period_mag_multi = (u64)haptic->pwm_dev->period * haptic->magnitude; > + period_mag_multi = (u64)pwm_get_period((haptic->pwm_dev)) * haptic->magnitude; > haptic->pwm_duty = (unsigned int)(period_mag_multi >> > MAX_MAGNITUDE_SHIFT); > >