From mboxrd@z Thu Jan 1 00:00:00 1970 From: boris.brezillon@free-electrons.com (Boris Brezillon) Date: Wed, 1 Jul 2015 10:21:56 +0200 Subject: [RFC PATCH 10/15] pwm: add the PWM initial state retrieval infra In-Reply-To: <1435738921-25027-1-git-send-email-boris.brezillon@free-electrons.com> References: <1435738921-25027-1-git-send-email-boris.brezillon@free-electrons.com> Message-ID: <1435738921-25027-11-git-send-email-boris.brezillon@free-electrons.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Add a ->init_state() function to the pwm_ops struct to let PWM drivers initialize the PWM state attached to a PWM device. Signed-off-by: Boris Brezillon --- drivers/pwm/core.c | 3 +++ include/linux/pwm.h | 2 ++ 2 files changed, 5 insertions(+) diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index 3e830ce..30631f5 100644 --- a/drivers/pwm/core.c +++ b/drivers/pwm/core.c @@ -264,6 +264,9 @@ int pwmchip_add_with_polarity(struct pwm_chip *chip, pwm->hwpwm = i; pwm_set_default_polarity(pwm, polarity); + if (chip->ops->init_state) + chip->ops->init_state(chip, pwm); + radix_tree_insert(&pwm_tree, pwm->pwm, pwm); } diff --git a/include/linux/pwm.h b/include/linux/pwm.h index 0f36a06..b47244a 100644 --- a/include/linux/pwm.h +++ b/include/linux/pwm.h @@ -177,6 +177,8 @@ struct pwm_ops { struct pwm_device *pwm); void (*disable)(struct pwm_chip *chip, struct pwm_device *pwm); + void (*init_state)(struct pwm_chip *chip, + struct pwm_device *pwm); #ifdef CONFIG_DEBUG_FS void (*dbg_show)(struct pwm_chip *chip, struct seq_file *s); -- 1.9.1 From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boris Brezillon Subject: [RFC PATCH 10/15] pwm: add the PWM initial state retrieval infra Date: Wed, 1 Jul 2015 10:21:56 +0200 Message-ID: <1435738921-25027-11-git-send-email-boris.brezillon@free-electrons.com> References: <1435738921-25027-1-git-send-email-boris.brezillon@free-electrons.com> Return-path: Received: from down.free-electrons.com ([37.187.137.238]:34364 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752582AbbGAIW1 (ORCPT ); Wed, 1 Jul 2015 04:22:27 -0400 In-Reply-To: <1435738921-25027-1-git-send-email-boris.brezillon@free-electrons.com> Sender: linux-leds-owner@vger.kernel.org List-Id: linux-leds@vger.kernel.org To: Thierry Reding , linux-pwm@vger.kernel.org Cc: Mark Brown , Liam Girdwood , Bryan Wu , Richard Purdie , Jacek Anaszewski , linux-leds@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Jean-Christophe Plagniol-Villard , Tomi Valkeinen , linux-fbdev@vger.kernel.org, Stephen Warren , Alexandre Courbot , linux-tegra@vger.kernel.org, Maxime Ripard , Jingoo Han , Lee Jones , Doug Anderson , Boris Brezillon Add a ->init_state() function to the pwm_ops struct to let PWM drivers initialize the PWM state attached to a PWM device. Signed-off-by: Boris Brezillon --- drivers/pwm/core.c | 3 +++ include/linux/pwm.h | 2 ++ 2 files changed, 5 insertions(+) diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index 3e830ce..30631f5 100644 --- a/drivers/pwm/core.c +++ b/drivers/pwm/core.c @@ -264,6 +264,9 @@ int pwmchip_add_with_polarity(struct pwm_chip *chip, pwm->hwpwm = i; pwm_set_default_polarity(pwm, polarity); + if (chip->ops->init_state) + chip->ops->init_state(chip, pwm); + radix_tree_insert(&pwm_tree, pwm->pwm, pwm); } diff --git a/include/linux/pwm.h b/include/linux/pwm.h index 0f36a06..b47244a 100644 --- a/include/linux/pwm.h +++ b/include/linux/pwm.h @@ -177,6 +177,8 @@ struct pwm_ops { struct pwm_device *pwm); void (*disable)(struct pwm_chip *chip, struct pwm_device *pwm); + void (*init_state)(struct pwm_chip *chip, + struct pwm_device *pwm); #ifdef CONFIG_DEBUG_FS void (*dbg_show)(struct pwm_chip *chip, struct seq_file *s); -- 1.9.1 From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boris Brezillon Date: Wed, 01 Jul 2015 08:21:56 +0000 Subject: [RFC PATCH 10/15] pwm: add the PWM initial state retrieval infra Message-Id: <1435738921-25027-11-git-send-email-boris.brezillon@free-electrons.com> List-Id: References: <1435738921-25027-1-git-send-email-boris.brezillon@free-electrons.com> In-Reply-To: <1435738921-25027-1-git-send-email-boris.brezillon@free-electrons.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-arm-kernel@lists.infradead.org Add a ->init_state() function to the pwm_ops struct to let PWM drivers initialize the PWM state attached to a PWM device. Signed-off-by: Boris Brezillon --- drivers/pwm/core.c | 3 +++ include/linux/pwm.h | 2 ++ 2 files changed, 5 insertions(+) diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index 3e830ce..30631f5 100644 --- a/drivers/pwm/core.c +++ b/drivers/pwm/core.c @@ -264,6 +264,9 @@ int pwmchip_add_with_polarity(struct pwm_chip *chip, pwm->hwpwm = i; pwm_set_default_polarity(pwm, polarity); + if (chip->ops->init_state) + chip->ops->init_state(chip, pwm); + radix_tree_insert(&pwm_tree, pwm->pwm, pwm); } diff --git a/include/linux/pwm.h b/include/linux/pwm.h index 0f36a06..b47244a 100644 --- a/include/linux/pwm.h +++ b/include/linux/pwm.h @@ -177,6 +177,8 @@ struct pwm_ops { struct pwm_device *pwm); void (*disable)(struct pwm_chip *chip, struct pwm_device *pwm); + void (*init_state)(struct pwm_chip *chip, + struct pwm_device *pwm); #ifdef CONFIG_DEBUG_FS void (*dbg_show)(struct pwm_chip *chip, struct seq_file *s); -- 1.9.1