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From: <Claudiu.Beznea@microchip.com>
To: <thierry.reding@gmail.com>, <corbet@lwn.net>,
	<Nicolas.Ferre@microchip.com>, <alexandre.belloni@bootlin.com>,
	<Ludovic.Desroches@microchip.com>, <robh@kernel.org>
Cc: <linux-pwm@vger.kernel.org>, <linux-doc@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<Claudiu.Beznea@microchip.com>
Subject: [PATCH v6 4/6] pwm: add push-pull mode support
Date: Mon, 17 Dec 2018 14:03:26 +0000	[thread overview]
Message-ID: <1545055368-23338-5-git-send-email-claudiu.beznea@microchip.com> (raw)
In-Reply-To: <1545055368-23338-1-git-send-email-claudiu.beznea@microchip.com>

From: Claudiu Beznea <claudiu.beznea@microchip.com>

Add push-pull mode support. In push-pull mode the channels' outputs have
same polarities and the edges are complementary delayed for one period.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
---
 drivers/pwm/core.c  | 3 +++
 include/linux/pwm.h | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index eb444ee8d486..f182d1eb564e 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -328,6 +328,9 @@ const char *pwm_get_mode_name(unsigned long modebit)
 	if (modebit == PWM_MODE_BIT(COMPLEMENTARY))
 		return "complementary";
 
+	if (modebit == PWM_MODE_BIT(PUSH_PULL))
+		return "push-pull";
+
 	return "normal";
 }
 
diff --git a/include/linux/pwm.h b/include/linux/pwm.h
index abe189d891af..cce29733d44e 100644
--- a/include/linux/pwm.h
+++ b/include/linux/pwm.h
@@ -32,11 +32,14 @@ enum pwm_polarity {
  * PWM modes capabilities
  * @PWM_MODE_NORMAL: PWM has one output
  * @PWM_MODE_COMPLEMENTARY: PWM has 2 outputs with opposite polarities
+ * @PWM_MODE_PUSH_PULL: PWM has 2 outputs with same polarities and the edges
+ * are complementary delayed for one period
  * @PWM_MODE_CNT: PWM modes count
  */
 enum pwm_mode {
 	PWM_MODE_NORMAL,
 	PWM_MODE_COMPLEMENTARY,
+	PWM_MODE_PUSH_PULL,
 	PWM_MODE_CNT,
 };
 
-- 
2.7.4


WARNING: multiple messages have this Message-ID (diff)
From: <Claudiu.Beznea@microchip.com>
To: thierry.reding@gmail.com, corbet@lwn.net,
	Nicolas.Ferre@microchip.com, alexandre.belloni@bootlin.com,
	Ludovic.Desroches@microchip.com, robh@kernel.org
Cc: linux-pwm@vger.kernel.org, linux-doc@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	Claudiu.Beznea@microchip.com
Subject: [PATCH v6 4/6] pwm: add push-pull mode support
Date: Mon, 17 Dec 2018 14:03:26 +0000	[thread overview]
Message-ID: <1545055368-23338-5-git-send-email-claudiu.beznea@microchip.com> (raw)
In-Reply-To: <1545055368-23338-1-git-send-email-claudiu.beznea@microchip.com>

From: Claudiu Beznea <claudiu.beznea@microchip.com>

Add push-pull mode support. In push-pull mode the channels' outputs have
same polarities and the edges are complementary delayed for one period.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
---
 drivers/pwm/core.c  | 3 +++
 include/linux/pwm.h | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index eb444ee8d486..f182d1eb564e 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -328,6 +328,9 @@ const char *pwm_get_mode_name(unsigned long modebit)
 	if (modebit == PWM_MODE_BIT(COMPLEMENTARY))
 		return "complementary";
 
+	if (modebit == PWM_MODE_BIT(PUSH_PULL))
+		return "push-pull";
+
 	return "normal";
 }
 
diff --git a/include/linux/pwm.h b/include/linux/pwm.h
index abe189d891af..cce29733d44e 100644
--- a/include/linux/pwm.h
+++ b/include/linux/pwm.h
@@ -32,11 +32,14 @@ enum pwm_polarity {
  * PWM modes capabilities
  * @PWM_MODE_NORMAL: PWM has one output
  * @PWM_MODE_COMPLEMENTARY: PWM has 2 outputs with opposite polarities
+ * @PWM_MODE_PUSH_PULL: PWM has 2 outputs with same polarities and the edges
+ * are complementary delayed for one period
  * @PWM_MODE_CNT: PWM modes count
  */
 enum pwm_mode {
 	PWM_MODE_NORMAL,
 	PWM_MODE_COMPLEMENTARY,
+	PWM_MODE_PUSH_PULL,
 	PWM_MODE_CNT,
 };
 
-- 
2.7.4

WARNING: multiple messages have this Message-ID (diff)
From: <Claudiu.Beznea@microchip.com>
To: <thierry.reding@gmail.com>, <corbet@lwn.net>,
	<Nicolas.Ferre@microchip.com>, <alexandre.belloni@bootlin.com>,
	<Ludovic.Desroches@microchip.com>, <robh@kernel.org>
Cc: linux-pwm@vger.kernel.org, Claudiu.Beznea@microchip.com,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org
Subject: [PATCH v6 4/6] pwm: add push-pull mode support
Date: Mon, 17 Dec 2018 14:03:26 +0000	[thread overview]
Message-ID: <1545055368-23338-5-git-send-email-claudiu.beznea@microchip.com> (raw)
In-Reply-To: <1545055368-23338-1-git-send-email-claudiu.beznea@microchip.com>

From: Claudiu Beznea <claudiu.beznea@microchip.com>

Add push-pull mode support. In push-pull mode the channels' outputs have
same polarities and the edges are complementary delayed for one period.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
---
 drivers/pwm/core.c  | 3 +++
 include/linux/pwm.h | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index eb444ee8d486..f182d1eb564e 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -328,6 +328,9 @@ const char *pwm_get_mode_name(unsigned long modebit)
 	if (modebit == PWM_MODE_BIT(COMPLEMENTARY))
 		return "complementary";
 
+	if (modebit == PWM_MODE_BIT(PUSH_PULL))
+		return "push-pull";
+
 	return "normal";
 }
 
diff --git a/include/linux/pwm.h b/include/linux/pwm.h
index abe189d891af..cce29733d44e 100644
--- a/include/linux/pwm.h
+++ b/include/linux/pwm.h
@@ -32,11 +32,14 @@ enum pwm_polarity {
  * PWM modes capabilities
  * @PWM_MODE_NORMAL: PWM has one output
  * @PWM_MODE_COMPLEMENTARY: PWM has 2 outputs with opposite polarities
+ * @PWM_MODE_PUSH_PULL: PWM has 2 outputs with same polarities and the edges
+ * are complementary delayed for one period
  * @PWM_MODE_CNT: PWM modes count
  */
 enum pwm_mode {
 	PWM_MODE_NORMAL,
 	PWM_MODE_COMPLEMENTARY,
+	PWM_MODE_PUSH_PULL,
 	PWM_MODE_CNT,
 };
 
-- 
2.7.4


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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2018-12-17 14:03 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-12-17 14:03 [PATCH v6 0/9] extend PWM framework to support PWM modes Claudiu.Beznea
2018-12-17 14:03 ` Claudiu.Beznea
2018-12-17 14:03 ` Claudiu.Beznea
2018-12-17 14:03 ` [PATCH v6 1/6] pwm: extend PWM framework with " Claudiu.Beznea
2018-12-17 14:03   ` Claudiu.Beznea
2018-12-17 14:03   ` Claudiu.Beznea
2018-12-23 15:29   ` kbuild test robot
2018-12-23 15:29     ` kbuild test robot
2018-12-17 14:03 ` [PATCH v6 2/6] pwm: add " Claudiu.Beznea
2018-12-17 14:03   ` Claudiu.Beznea
2018-12-17 14:03   ` Claudiu.Beznea
2018-12-17 14:03 ` [PATCH v6 3/6] pwm: atmel: add pwm capabilities Claudiu.Beznea
2018-12-17 14:03   ` Claudiu.Beznea
2018-12-17 14:03   ` Claudiu.Beznea
2018-12-17 14:03 ` Claudiu.Beznea [this message]
2018-12-17 14:03   ` [PATCH v6 4/6] pwm: add push-pull mode support Claudiu.Beznea
2018-12-17 14:03   ` Claudiu.Beznea
2018-12-17 14:03 ` [PATCH v6 5/6] pwm: add documentation for pwm push-pull mode Claudiu.Beznea
2018-12-17 14:03   ` Claudiu.Beznea
2018-12-17 14:03   ` Claudiu.Beznea
2018-12-17 14:03 ` [PATCH v6 6/6] pwm: atmel: add push-pull mode support Claudiu.Beznea
2018-12-17 14:03   ` Claudiu.Beznea
2018-12-17 14:03   ` Claudiu.Beznea
2018-12-17 14:06 ` [PATCH v6 0/9] extend PWM framework to support PWM modes Claudiu.Beznea
2018-12-17 14:06   ` Claudiu.Beznea
2018-12-17 14:06   ` Claudiu.Beznea

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