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From: Lars-Peter Clausen <lars@metafoo.de>
To: Ben Dooks <ben-linux@fluff.org>, Kukjin Kim <kgene.kim@samsung.com>
Cc: linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	Lars-Peter Clausen <lars@metafoo.de>
Subject: [PATCH 08/09] ARM: s3c2440: gta02: Request usb pullup pin before using it
Date: Mon,  7 Feb 2011 02:52:00 +0100	[thread overview]
Message-ID: <1297043521-21903-8-git-send-email-lars@metafoo.de> (raw)
In-Reply-To: <1297043521-21903-1-git-send-email-lars@metafoo.de>

Request the gpio pin used to control the usb pullup before using it to avoid a
runtime warning about an auto-requested gpio.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
---
 arch/arm/mach-s3c2440/mach-gta02.c |   17 +++++++++++++++--
 1 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-s3c2440/mach-gta02.c b/arch/arm/mach-s3c2440/mach-gta02.c
index 1396639..94456fa 100644
--- a/arch/arm/mach-s3c2440/mach-gta02.c
+++ b/arch/arm/mach-s3c2440/mach-gta02.c
@@ -451,11 +451,11 @@ static void gta02_udc_command(enum s3c2410_udc_cmd_e cmd)
 	switch (cmd) {
 	case S3C2410_UDC_P_ENABLE:
 		pr_debug("%s S3C2410_UDC_P_ENABLE\n", __func__);
-		gpio_direction_output(GTA02_GPIO_USB_PULLUP, 1);
+		gpio_set_value(GTA02_GPIO_USB_PULLUP, 1);
 		break;
 	case S3C2410_UDC_P_DISABLE:
 		pr_debug("%s S3C2410_UDC_P_DISABLE\n", __func__);
-		gpio_direction_output(GTA02_GPIO_USB_PULLUP, 0);
+		gpio_set_value(GTA02_GPIO_USB_PULLUP, 0);
 		break;
 	case S3C2410_UDC_P_RESET:
 		pr_debug("%s S3C2410_UDC_P_RESET\n", __func__);
@@ -572,11 +572,24 @@ static void gta02_poweroff(void)
 	pcf50633_reg_set_bit_mask(gta02_pcf, PCF50633_REG_OOCSHDWN, 1, 1);
 }
 
+static void gta02_request_gpios(void)
+{
+	int ret;
+	ret = gpio_request_one(GTA02_GPIO_USB_PULLUP, GPIOF_OUT_INIT_LOW,
+				"USB pullup");
+	if (ret) {
+		printk(KERN_ERR "Failed to request USB pullup gpio pin: %d\n",
+			ret);
+	}
+}
+
 static void __init gta02_machine_init(void)
 {
 	/* Set the panic callback to turn AUX LED on or off. */
 	panic_blink = gta02_panic_blink;
 
+	gta02_request_gpios();
+
 	s3c_pm_init();
 
 #ifdef CONFIG_CHARGER_PCF50633
-- 
1.7.2.3


  parent reply	other threads:[~2011-02-07  1:51 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-07  1:51 [PATCH 01/09] ARM: s3c2442: gta02: Fix usage gpio bank j pin definitions Lars-Peter Clausen
2011-02-07  1:51 ` [PATCH 02/09] ARM: s3c2440: gta02: Register PCM device Lars-Peter Clausen
2011-02-28  6:38   ` Kukjin Kim
2011-02-07  1:51 ` [PATCH 03/09] ARM: s3c2440: gta02: Add button support Lars-Peter Clausen
2011-02-28  6:37   ` Kukjin Kim
2011-02-07  1:51 ` [PATCH 04/09] ARM: s3c2440: gta02: Select missing S3C_DEV_USB_HOST Lars-Peter Clausen
2011-02-28  6:31   ` Kukjin Kim
2011-02-07  1:51 ` [PATCH 05/09] ARM: s3c2440: gta02: Fix regulator valid_modes_ops Lars-Peter Clausen
2011-02-28  6:48   ` Kukjin Kim
2011-02-07  1:51 ` [PATCH 06/09] ARM: s3c2440: gta02: Remove state_mem constraints for the pcf50633 regulators Lars-Peter Clausen
2011-02-28  6:26   ` Kukjin Kim
2011-02-28 10:28     ` Lars-Peter Clausen
2011-02-28 10:58       ` Kukjin Kim
2011-02-07  1:51 ` [PATCH 07/09] ARM: s3c2440: gta02: Call regulator_has_full_constraints Lars-Peter Clausen
2011-02-07 11:58   ` Mark Brown
2011-02-08  2:55   ` [PATCH v2 " Lars-Peter Clausen
2011-02-28  6:47     ` Kukjin Kim
2011-02-07  1:52 ` Lars-Peter Clausen [this message]
2011-02-28  6:16   ` [PATCH 08/09] ARM: s3c2440: gta02: Request usb pullup pin before using it Kukjin Kim
2011-02-28 10:25     ` Lars-Peter Clausen
2011-02-28 10:44       ` Kukjin Kim
2011-02-28 10:58         ` Lars-Peter Clausen
2011-03-07  6:42           ` Kukjin Kim
2011-03-07  7:00             ` Lars-Peter Clausen
2011-02-07  1:52 ` [PATCH 09/09] ARM: s3c2440: gta02: Add touchscreen support Lars-Peter Clausen
2011-02-28  6:04   ` Kukjin Kim
2011-02-28 10:44     ` Lars-Peter Clausen
2011-02-28 10:57       ` Kukjin Kim
2011-02-28 11:17   ` [PATCH v2 " Lars-Peter Clausen
2011-02-28 11:56     ` Kukjin Kim
2011-02-18 10:41 ` [PATCH 01/09] ARM: s3c2442: gta02: Fix usage gpio bank j pin definitions Lars-Peter Clausen
2011-02-21  9:58   ` Kukjin Kim
2011-02-28  6:41 ` Kukjin Kim
2011-02-28 10:46   ` Lars-Peter Clausen
2011-02-28 10:49     ` Kukjin Kim

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