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From: Florian Fainelli <f.fainelli@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: "Florian Fainelli" <f.fainelli@gmail.com>,
	"Thierry Reding" <thierry.reding@gmail.com>,
	"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
	"Ray Jui" <rjui@broadcom.com>,
	"Scott Branden" <sbranden@broadcom.com>,
	"maintainer:BROADCOM BCM281XX/BCM11XXX/BCM216XX ARM ARCHITE..."
	<bcm-kernel-feedback-list@broadcom.com>,
	"Nicolas Saenz Julienne" <nsaenzjulienne@suse.de>,
	"Bart Tanghe" <bart.tanghe@thomasmore.be>,
	"Stephen Warren" <swarren@wwwdotorg.org>,
	"open list:PWM SUBSYSTEM" <linux-pwm@vger.kernel.org>,
	"moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE"
	<linux-rpi-kernel@lists.infradead.org>,
	"moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE"
	<linux-arm-kernel@lists.infradead.org>
Subject: [PATCH] pwm: bcm2835: Dynamically allocate base
Date: Mon,  3 Feb 2020 13:35:35 -0800	[thread overview]
Message-ID: <20200203213536.32226-1-f.fainelli@gmail.com> (raw)

The newer 2711 and 7211 chips have two PWM controllers and failure to
dynamically allocate the PWM base would prevent the second PWM
controller instance being probed for succeeding with an -EEXIST error
from alloc_pwms().

Fixes: e5a06dc5ac1f ("pwm: Add BCM2835 PWM driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 drivers/pwm/pwm-bcm2835.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pwm/pwm-bcm2835.c b/drivers/pwm/pwm-bcm2835.c
index 91e24f01b54e..d78f86f8e462 100644
--- a/drivers/pwm/pwm-bcm2835.c
+++ b/drivers/pwm/pwm-bcm2835.c
@@ -166,6 +166,7 @@ static int bcm2835_pwm_probe(struct platform_device *pdev)
 
 	pc->chip.dev = &pdev->dev;
 	pc->chip.ops = &bcm2835_pwm_ops;
+	pc->chip.base = -1;
 	pc->chip.npwm = 2;
 	pc->chip.of_xlate = of_pwm_xlate_with_flags;
 	pc->chip.of_pwm_n_cells = 3;
-- 
2.17.1

WARNING: multiple messages have this Message-ID (diff)
From: Florian Fainelli <f.fainelli@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: "moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE"
	<linux-arm-kernel@lists.infradead.org>,
	"open list:PWM SUBSYSTEM" <linux-pwm@vger.kernel.org>,
	"Florian Fainelli" <f.fainelli@gmail.com>,
	"Bart Tanghe" <bart.tanghe@thomasmore.be>,
	"Scott Branden" <sbranden@broadcom.com>,
	"Stephen Warren" <swarren@wwwdotorg.org>,
	"Ray Jui" <rjui@broadcom.com>,
	"Thierry Reding" <thierry.reding@gmail.com>,
	"maintainer:BROADCOM BCM281XX/BCM11XXX/BCM216XX ARM ARCHITE..."
	<bcm-kernel-feedback-list@broadcom.com>,
	"moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE"
	<linux-rpi-kernel@lists.infradead.org>,
	"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
	"Nicolas Saenz Julienne" <nsaenzjulienne@suse.de>
Subject: [PATCH] pwm: bcm2835: Dynamically allocate base
Date: Mon,  3 Feb 2020 13:35:35 -0800	[thread overview]
Message-ID: <20200203213536.32226-1-f.fainelli@gmail.com> (raw)

The newer 2711 and 7211 chips have two PWM controllers and failure to
dynamically allocate the PWM base would prevent the second PWM
controller instance being probed for succeeding with an -EEXIST error
from alloc_pwms().

Fixes: e5a06dc5ac1f ("pwm: Add BCM2835 PWM driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 drivers/pwm/pwm-bcm2835.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pwm/pwm-bcm2835.c b/drivers/pwm/pwm-bcm2835.c
index 91e24f01b54e..d78f86f8e462 100644
--- a/drivers/pwm/pwm-bcm2835.c
+++ b/drivers/pwm/pwm-bcm2835.c
@@ -166,6 +166,7 @@ static int bcm2835_pwm_probe(struct platform_device *pdev)
 
 	pc->chip.dev = &pdev->dev;
 	pc->chip.ops = &bcm2835_pwm_ops;
+	pc->chip.base = -1;
 	pc->chip.npwm = 2;
 	pc->chip.of_xlate = of_pwm_xlate_with_flags;
 	pc->chip.of_pwm_n_cells = 3;
-- 
2.17.1


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

WARNING: multiple messages have this Message-ID (diff)
From: Florian Fainelli <f.fainelli@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: "Florian Fainelli" <f.fainelli@gmail.com>,
	"Thierry Reding" <thierry.reding@gmail.com>,
	"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
	"Ray Jui" <rjui@broadcom.com>,
	"Scott Branden" <sbranden@broadcom.com>,
	bcm-kernel-feedback-list@broadcom.com (maintainer:BROADCOM
	BCM281XX/BCM11XXX/BCM216XX ARM ARCHITE...),
	"Nicolas Saenz Julienne" <nsaenzjulienne@suse.de>,
	"Bart Tanghe" <bart.tanghe@thomasmore.be>,
	"Stephen Warren" <swarren@wwwdotorg.org>,
	linux-pwm@vger.kernel.org (open list:PWM SUBSYSTEM),
	linux-rpi-kernel@lists.infradead.org (moderated list:BROADCOM
	BCM2711/BCM2835 ARM ARCHITECTURE),
	linux-arm-kernel@lists.infradead.org (moderated list:BROADCOM
	BCM2711/BCM2835 ARM ARCHITECTURE)
Subject: [PATCH] pwm: bcm2835: Dynamically allocate base
Date: Mon,  3 Feb 2020 13:35:35 -0800	[thread overview]
Message-ID: <20200203213536.32226-1-f.fainelli@gmail.com> (raw)

The newer 2711 and 7211 chips have two PWM controllers and failure to
dynamically allocate the PWM base would prevent the second PWM
controller instance being probed for succeeding with an -EEXIST error
from alloc_pwms().

Fixes: e5a06dc5ac1f ("pwm: Add BCM2835 PWM driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 drivers/pwm/pwm-bcm2835.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pwm/pwm-bcm2835.c b/drivers/pwm/pwm-bcm2835.c
index 91e24f01b54e..d78f86f8e462 100644
--- a/drivers/pwm/pwm-bcm2835.c
+++ b/drivers/pwm/pwm-bcm2835.c
@@ -166,6 +166,7 @@ static int bcm2835_pwm_probe(struct platform_device *pdev)
 
 	pc->chip.dev = &pdev->dev;
 	pc->chip.ops = &bcm2835_pwm_ops;
+	pc->chip.base = -1;
 	pc->chip.npwm = 2;
 	pc->chip.of_xlate = of_pwm_xlate_with_flags;
 	pc->chip.of_pwm_n_cells = 3;
-- 
2.17.1


             reply	other threads:[~2020-02-03 21:35 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-03 21:35 Florian Fainelli [this message]
2020-02-03 21:35 ` [PATCH] pwm: bcm2835: Dynamically allocate base Florian Fainelli
2020-02-03 21:35 ` Florian Fainelli
2020-02-04  6:46 ` Uwe Kleine-König
2020-02-04  6:46   ` Uwe Kleine-König
2020-02-04  9:17 ` Nicolas Saenz Julienne
2020-02-04  9:17   ` Nicolas Saenz Julienne
2020-02-20 19:14   ` Florian Fainelli
2020-02-20 19:14     ` Florian Fainelli
2020-02-20 21:07     ` Uwe Kleine-König
2020-02-20 21:07       ` Uwe Kleine-König
2020-03-13 17:37       ` Florian Fainelli
2020-03-13 17:37         ` Florian Fainelli

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