linux-kernel - [PATCH 4.8 84/92] pinctrl: iproc: Fix iProc and NSP GPIO support

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Date:   Thu, 17 Nov 2016 11:32:57 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Ray Jui <ray.jui@...adcom.com>,
        Eric Anholt <eric@...olt.net>,
        Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH 4.8 84/92] pinctrl: iproc: Fix iProc and NSP GPIO support

4.8-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ray Jui <ray.jui@...adcom.com>

commit 091c531b09c151c2d712a8f347009ca3698a2467 upstream.

Since commit 44a7185c2ae6 ("of/platform: Add common method to populate
default bus"), ARM64 platform devices are populated at the
arch_initcall_sync level; as a result, the platform_driver_probe calls
in both the iProc and NSP GPIO drivers fail with -ENODEV since by that
time the platform device was not yet registered.

Replace platform_driver_probe with platform_driver_register, that allow
the device to be register later

Fixes: 44a7185c2ae6 ("of/platform: Add common method to populate default bus")
Signed-off-by: Ray Jui <ray.jui@...adcom.com>
Tested-by: Eric Anholt <eric@...olt.net>
Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/pinctrl/bcm/pinctrl-iproc-gpio.c |    2 +-
 drivers/pinctrl/bcm/pinctrl-nsp-gpio.c   |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/pinctrl/bcm/pinctrl-iproc-gpio.c
+++ b/drivers/pinctrl/bcm/pinctrl-iproc-gpio.c
@@ -844,6 +844,6 @@ static struct platform_driver iproc_gpio
 
 static int __init iproc_gpio_init(void)
 {
-	return platform_driver_probe(&iproc_gpio_driver, iproc_gpio_probe);
+	return platform_driver_register(&iproc_gpio_driver);
 }
 arch_initcall_sync(iproc_gpio_init);
--- a/drivers/pinctrl/bcm/pinctrl-nsp-gpio.c
+++ b/drivers/pinctrl/bcm/pinctrl-nsp-gpio.c
@@ -741,6 +741,6 @@ static struct platform_driver nsp_gpio_d
 
 static int __init nsp_gpio_init(void)
 {
-	return platform_driver_probe(&nsp_gpio_driver, nsp_gpio_probe);
+	return platform_driver_register(&nsp_gpio_driver);
 }
 arch_initcall_sync(nsp_gpio_init);