From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boris Brezillon Subject: [PATCH v5 14/46] pwm: keep PWM state in sync with hardware state Date: Wed, 30 Mar 2016 22:03:37 +0200 Message-ID: <1459368249-13241-15-git-send-email-boris.brezillon@free-electrons.com> References: <1459368249-13241-1-git-send-email-boris.brezillon@free-electrons.com> Reply-To: boris.brezillon-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@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: <1459368249-13241-1-git-send-email-boris.brezillon-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org> List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , To: 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 linu List-Id: linux-leds@vger.kernel.org Before the introduction of pwm_args, the core and some drivers were resetting the PWM period and polarity states to the reference values (those provided through the DT, a PWM lookup table or hardcoded in the driver). Now that all PWM users are correctly using pwm_args to configure their PWM device, we can safely remove some pwm_set_period/polarity() calls. Signed-off-by: Boris Brezillon --- drivers/pwm/core.c | 5 ----- drivers/pwm/pwm-clps711x.c | 1 - drivers/pwm/pwm-pxa.c | 1 - 3 files changed, 7 deletions(-) diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index cd55d61..6433059 100644 --- a/drivers/pwm/core.c +++ b/drivers/pwm/core.c @@ -147,13 +147,11 @@ of_pwm_xlate_with_flags(struct pwm_chip *pc, const struct of_phandle_args *args) return pwm; pwm->args.period = args->args[1]; - pwm_set_period(pwm, pwm->args.period); if (args->args[2] & PWM_POLARITY_INVERTED) pwm->args.polarity = PWM_POLARITY_INVERSED; else pwm->args.polarity = PWM_POLARITY_NORMAL; - pwm_set_polarity(pwm, pwm->args.polarity); return pwm; } @@ -175,7 +173,6 @@ of_pwm_simple_xlate(struct pwm_chip *pc, const struct of_phandle_args *args) return pwm; pwm->args.period = args->args[1]; - pwm_set_period(pwm, pwm->args.period); return pwm; } @@ -745,8 +742,6 @@ struct pwm_device *pwm_get(struct device *dev, const char *con_id) pwm->args.period = chosen->period; pwm->args.polarity = chosen->polarity; - pwm_set_period(pwm, chosen->period); - pwm_set_polarity(pwm, chosen->polarity); out: mutex_unlock(&pwm_lookup_lock); diff --git a/drivers/pwm/pwm-clps711x.c b/drivers/pwm/pwm-clps711x.c index 807a48d..7d33542 100644 --- a/drivers/pwm/pwm-clps711x.c +++ b/drivers/pwm/pwm-clps711x.c @@ -61,7 +61,6 @@ static int clps711x_pwm_request(struct pwm_chip *chip, struct pwm_device *pwm) /* Store constant period value */ pwm->args.period = DIV_ROUND_CLOSEST(NSEC_PER_SEC, freq); - pwm_set_period(pwm, pwm->args.period); return 0; } diff --git a/drivers/pwm/pwm-pxa.c b/drivers/pwm/pwm-pxa.c index 3fcc886..58b709f 100644 --- a/drivers/pwm/pwm-pxa.c +++ b/drivers/pwm/pwm-pxa.c @@ -161,7 +161,6 @@ pxa_pwm_of_xlate(struct pwm_chip *pc, const struct of_phandle_args *args) return pwm; pwm->args.period = args->args[0]; - pwm_set_period(pwm, args->args[0]); return pwm; } -- 2.5.0 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755139AbcC3UFA (ORCPT ); Wed, 30 Mar 2016 16:05:00 -0400 Received: from down.free-electrons.com ([37.187.137.238]:45058 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755034AbcC3UEz (ORCPT ); Wed, 30 Mar 2016 16:04:55 -0400 From: Boris Brezillon To: Thierry Reding , linux-pwm@vger.kernel.org Cc: Mike Turquette , Stephen Boyd , linux-clk@vger.kernel.org, Mark Brown , Liam Girdwood , Kamil Debski , lm-sensors@lm-sensors.org, Jean Delvare , Guenter Roeck , Dmitry Torokhov , linux-input@vger.kernel.org, Bryan Wu , Richard Purdie , Jacek Anaszewski , linux-leds@vger.kernel.org, Maxime Ripard , Chen-Yu Tsai , linux-sunxi@googlegroups.com, Joachim Eastwood , Thomas Petazzoni , Heiko Stuebner , linux-rockchip@lists.infradead.org, Jingoo Han , Lee Jones , linux-fbdev@vger.kernel.org, Jean-Christophe Plagniol-Villard , Tomi Valkeinen , Robert Jarzmik , Alexandre Belloni , Kukjin Kim , Krzysztof Kozlowski , linux-samsung-soc@vger.kernel.org, intel-gfx@lists.freedesktop.org, Daniel Vetter , Jani Nikula , Jonathan Corbet , linux-doc@vger.kernel.org, David Airlie , Daniel Vetter , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Hartley Sweeten , Ryan Mallon , Alexander Shiyan , Milo Kim , Boris Brezillon Subject: [PATCH v5 14/46] pwm: keep PWM state in sync with hardware state Date: Wed, 30 Mar 2016 22:03:37 +0200 Message-Id: <1459368249-13241-15-git-send-email-boris.brezillon@free-electrons.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1459368249-13241-1-git-send-email-boris.brezillon@free-electrons.com> References: <1459368249-13241-1-git-send-email-boris.brezillon@free-electrons.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Before the introduction of pwm_args, the core and some drivers were resetting the PWM period and polarity states to the reference values (those provided through the DT, a PWM lookup table or hardcoded in the driver). Now that all PWM users are correctly using pwm_args to configure their PWM device, we can safely remove some pwm_set_period/polarity() calls. Signed-off-by: Boris Brezillon --- drivers/pwm/core.c | 5 ----- drivers/pwm/pwm-clps711x.c | 1 - drivers/pwm/pwm-pxa.c | 1 - 3 files changed, 7 deletions(-) diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index cd55d61..6433059 100644 --- a/drivers/pwm/core.c +++ b/drivers/pwm/core.c @@ -147,13 +147,11 @@ of_pwm_xlate_with_flags(struct pwm_chip *pc, const struct of_phandle_args *args) return pwm; pwm->args.period = args->args[1]; - pwm_set_period(pwm, pwm->args.period); if (args->args[2] & PWM_POLARITY_INVERTED) pwm->args.polarity = PWM_POLARITY_INVERSED; else pwm->args.polarity = PWM_POLARITY_NORMAL; - pwm_set_polarity(pwm, pwm->args.polarity); return pwm; } @@ -175,7 +173,6 @@ of_pwm_simple_xlate(struct pwm_chip *pc, const struct of_phandle_args *args) return pwm; pwm->args.period = args->args[1]; - pwm_set_period(pwm, pwm->args.period); return pwm; } @@ -745,8 +742,6 @@ struct pwm_device *pwm_get(struct device *dev, const char *con_id) pwm->args.period = chosen->period; pwm->args.polarity = chosen->polarity; - pwm_set_period(pwm, chosen->period); - pwm_set_polarity(pwm, chosen->polarity); out: mutex_unlock(&pwm_lookup_lock); diff --git a/drivers/pwm/pwm-clps711x.c b/drivers/pwm/pwm-clps711x.c index 807a48d..7d33542 100644 --- a/drivers/pwm/pwm-clps711x.c +++ b/drivers/pwm/pwm-clps711x.c @@ -61,7 +61,6 @@ static int clps711x_pwm_request(struct pwm_chip *chip, struct pwm_device *pwm) /* Store constant period value */ pwm->args.period = DIV_ROUND_CLOSEST(NSEC_PER_SEC, freq); - pwm_set_period(pwm, pwm->args.period); return 0; } diff --git a/drivers/pwm/pwm-pxa.c b/drivers/pwm/pwm-pxa.c index 3fcc886..58b709f 100644 --- a/drivers/pwm/pwm-pxa.c +++ b/drivers/pwm/pwm-pxa.c @@ -161,7 +161,6 @@ pxa_pwm_of_xlate(struct pwm_chip *pc, const struct of_phandle_args *args) return pwm; pwm->args.period = args->args[0]; - pwm_set_period(pwm, args->args[0]); return pwm; } -- 2.5.0 From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boris Brezillon Date: Wed, 30 Mar 2016 20:03:37 +0000 Subject: [PATCH v5 14/46] pwm: keep PWM state in sync with hardware state Message-Id: <1459368249-13241-15-git-send-email-boris.brezillon@free-electrons.com> List-Id: References: <1459368249-13241-1-git-send-email-boris.brezillon@free-electrons.com> In-Reply-To: <1459368249-13241-1-git-send-email-boris.brezillon-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: 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 Before the introduction of pwm_args, the core and some drivers were resetting the PWM period and polarity states to the reference values (those provided through the DT, a PWM lookup table or hardcoded in the driver). Now that all PWM users are correctly using pwm_args to configure their PWM device, we can safely remove some pwm_set_period/polarity() calls. Signed-off-by: Boris Brezillon --- drivers/pwm/core.c | 5 ----- drivers/pwm/pwm-clps711x.c | 1 - drivers/pwm/pwm-pxa.c | 1 - 3 files changed, 7 deletions(-) diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index cd55d61..6433059 100644 --- a/drivers/pwm/core.c +++ b/drivers/pwm/core.c @@ -147,13 +147,11 @@ of_pwm_xlate_with_flags(struct pwm_chip *pc, const struct of_phandle_args *args) return pwm; pwm->args.period = args->args[1]; - pwm_set_period(pwm, pwm->args.period); if (args->args[2] & PWM_POLARITY_INVERTED) pwm->args.polarity = PWM_POLARITY_INVERSED; else pwm->args.polarity = PWM_POLARITY_NORMAL; - pwm_set_polarity(pwm, pwm->args.polarity); return pwm; } @@ -175,7 +173,6 @@ of_pwm_simple_xlate(struct pwm_chip *pc, const struct of_phandle_args *args) return pwm; pwm->args.period = args->args[1]; - pwm_set_period(pwm, pwm->args.period); return pwm; } @@ -745,8 +742,6 @@ struct pwm_device *pwm_get(struct device *dev, const char *con_id) pwm->args.period = chosen->period; pwm->args.polarity = chosen->polarity; - pwm_set_period(pwm, chosen->period); - pwm_set_polarity(pwm, chosen->polarity); out: mutex_unlock(&pwm_lookup_lock); diff --git a/drivers/pwm/pwm-clps711x.c b/drivers/pwm/pwm-clps711x.c index 807a48d..7d33542 100644 --- a/drivers/pwm/pwm-clps711x.c +++ b/drivers/pwm/pwm-clps711x.c @@ -61,7 +61,6 @@ static int clps711x_pwm_request(struct pwm_chip *chip, struct pwm_device *pwm) /* Store constant period value */ pwm->args.period = DIV_ROUND_CLOSEST(NSEC_PER_SEC, freq); - pwm_set_period(pwm, pwm->args.period); return 0; } diff --git a/drivers/pwm/pwm-pxa.c b/drivers/pwm/pwm-pxa.c index 3fcc886..58b709f 100644 --- a/drivers/pwm/pwm-pxa.c +++ b/drivers/pwm/pwm-pxa.c @@ -161,7 +161,6 @@ pxa_pwm_of_xlate(struct pwm_chip *pc, const struct of_phandle_args *args) return pwm; pwm->args.period = args->args[0]; - pwm_set_period(pwm, args->args[0]); return pwm; } -- 2.5.0 From mboxrd@z Thu Jan 1 00:00:00 1970 From: boris.brezillon@free-electrons.com (Boris Brezillon) Date: Wed, 30 Mar 2016 22:03:37 +0200 Subject: [PATCH v5 14/46] pwm: keep PWM state in sync with hardware state In-Reply-To: <1459368249-13241-1-git-send-email-boris.brezillon@free-electrons.com> References: <1459368249-13241-1-git-send-email-boris.brezillon@free-electrons.com> Message-ID: <1459368249-13241-15-git-send-email-boris.brezillon@free-electrons.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Before the introduction of pwm_args, the core and some drivers were resetting the PWM period and polarity states to the reference values (those provided through the DT, a PWM lookup table or hardcoded in the driver). Now that all PWM users are correctly using pwm_args to configure their PWM device, we can safely remove some pwm_set_period/polarity() calls. Signed-off-by: Boris Brezillon --- drivers/pwm/core.c | 5 ----- drivers/pwm/pwm-clps711x.c | 1 - drivers/pwm/pwm-pxa.c | 1 - 3 files changed, 7 deletions(-) diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index cd55d61..6433059 100644 --- a/drivers/pwm/core.c +++ b/drivers/pwm/core.c @@ -147,13 +147,11 @@ of_pwm_xlate_with_flags(struct pwm_chip *pc, const struct of_phandle_args *args) return pwm; pwm->args.period = args->args[1]; - pwm_set_period(pwm, pwm->args.period); if (args->args[2] & PWM_POLARITY_INVERTED) pwm->args.polarity = PWM_POLARITY_INVERSED; else pwm->args.polarity = PWM_POLARITY_NORMAL; - pwm_set_polarity(pwm, pwm->args.polarity); return pwm; } @@ -175,7 +173,6 @@ of_pwm_simple_xlate(struct pwm_chip *pc, const struct of_phandle_args *args) return pwm; pwm->args.period = args->args[1]; - pwm_set_period(pwm, pwm->args.period); return pwm; } @@ -745,8 +742,6 @@ struct pwm_device *pwm_get(struct device *dev, const char *con_id) pwm->args.period = chosen->period; pwm->args.polarity = chosen->polarity; - pwm_set_period(pwm, chosen->period); - pwm_set_polarity(pwm, chosen->polarity); out: mutex_unlock(&pwm_lookup_lock); diff --git a/drivers/pwm/pwm-clps711x.c b/drivers/pwm/pwm-clps711x.c index 807a48d..7d33542 100644 --- a/drivers/pwm/pwm-clps711x.c +++ b/drivers/pwm/pwm-clps711x.c @@ -61,7 +61,6 @@ static int clps711x_pwm_request(struct pwm_chip *chip, struct pwm_device *pwm) /* Store constant period value */ pwm->args.period = DIV_ROUND_CLOSEST(NSEC_PER_SEC, freq); - pwm_set_period(pwm, pwm->args.period); return 0; } diff --git a/drivers/pwm/pwm-pxa.c b/drivers/pwm/pwm-pxa.c index 3fcc886..58b709f 100644 --- a/drivers/pwm/pwm-pxa.c +++ b/drivers/pwm/pwm-pxa.c @@ -161,7 +161,6 @@ pxa_pwm_of_xlate(struct pwm_chip *pc, const struct of_phandle_args *args) return pwm; pwm->args.period = args->args[0]; - pwm_set_period(pwm, args->args[0]); return pwm; } -- 2.5.0