From: Claudiu Beznea <claudiu.beznea@microchip.com>
To: <thierry.reding@gmail.com>, <shc_work@mail.ru>,
<robh+dt@kernel.org>, <mark.rutland@arm.com>, <corbet@lwn.net>,
<nicolas.ferre@microchip.com>,
<alexandre.belloni@free-electrons.com>
Cc: <linux-pwm@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
Claudiu Beznea <claudiu.beznea@microchip.com>
Subject: [PATCH v5 7/9] pwm: add push-pull mode support
Date: Tue, 22 May 2018 15:07:11 +0300 [thread overview]
Message-ID: <1526990833-30707-8-git-send-email-claudiu.beznea@microchip.com> (raw)
In-Reply-To: <1526990833-30707-1-git-send-email-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 | 1 +
include/linux/pwm.h | 3 +++
2 files changed, 4 insertions(+)
diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index 59a9df9120de..5fde2e685ca7 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -348,6 +348,7 @@ const char *pwm_mode_desc(struct pwm_device *pwm, unsigned long mode)
"invalid",
"normal",
"complementary",
+ "push-pull",
};
if (!pwm_mode_valid(pwm, mode))
diff --git a/include/linux/pwm.h b/include/linux/pwm.h
index a4ce4ad7edf0..eb170e2ab431 100644
--- a/include/linux/pwm.h
+++ b/include/linux/pwm.h
@@ -29,11 +29,14 @@ enum pwm_polarity {
* PWM modes capabilities
* @PWMC_MODE_NORMAL_BIT: PWM has one output
* @PWMC_MODE_COMPLEMENTARY_BIT: PWM has 2 outputs with opposite polarities
+ * @PWMC_MODE_PUSH_PULL_BIT: PWM has 2 outputs with same polarities and the
+ * edges are complementary delayed for one period
* @PWMC_MODE_CNT: PWM modes count
*/
enum {
PWMC_MODE_NORMAL_BIT,
PWMC_MODE_COMPLEMENTARY_BIT,
+ PWMC_MODE_PUSH_PULL_BIT,
PWMC_MODE_CNT,
};
--
2.7.4
next prev parent reply other threads:[~2018-05-22 12:08 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-22 12:07 [PATCH v5 0/9] extend PWM framework to support PWM modes Claudiu Beznea
2018-05-22 12:07 ` [PATCH v5 1/9] pwm: extend PWM framework with " Claudiu Beznea
2018-05-22 12:07 ` [PATCH v5 2/9] pwm: clps711x: populate PWM mode in of_xlate function Claudiu Beznea
2018-05-22 12:07 ` [PATCH v5 3/9] pwm: cros-ec: " Claudiu Beznea
2018-05-22 12:07 ` [PATCH v5 4/9] pwm: pxa: " Claudiu Beznea
2018-05-22 12:07 ` [PATCH v5 5/9] pwm: add PWM modes Claudiu Beznea
2018-05-22 12:07 ` [PATCH v5 6/9] pwm: atmel: add pwm capabilities Claudiu Beznea
2018-05-22 12:07 ` Claudiu Beznea [this message]
2018-05-22 12:07 ` [PATCH v5 8/9] pwm: add documentation for pwm push-pull mode Claudiu Beznea
2018-05-22 12:07 ` [PATCH v5 9/9] pwm: atmel: add push-pull mode support Claudiu Beznea
2018-07-18 7:07 ` [PATCH v5 0/9] extend PWM framework to support PWM modes Claudiu Beznea
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