linux-kernel - [PATCH 14/62] Blackfin: do not error if GPIO IRQ is requested already as GPIO

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Date:	Fri,  5 Jun 2009 04:04:23 -0400
From:	Mike Frysinger <vapier@...too.org>
To:	linux-kernel@...r.kernel.org
Cc:	uclinux-dist-devel@...ckfin.uclinux.org,
	Michael Hennerich <michael.hennerich@...log.com>,
	Bryan Wu <cooloney@...nel.org>
Subject: [PATCH 14/62] Blackfin: do not error if GPIO IRQ is requested already as GPIO

From: Michael Hennerich <michael.hennerich@...log.com>

Some drivers expect to be able to request both as GPIO and GPIO IRQ, so
allow that use case.

Signed-off-by: Michael Hennerich <michael.hennerich@...log.com>
Signed-off-by: Bryan Wu <cooloney@...nel.org>
Signed-off-by: Mike Frysinger <vapier@...too.org>
---
 arch/blackfin/kernel/bfin_gpio.c |    9 ---------
 1 files changed, 0 insertions(+), 9 deletions(-)

diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c
index a0678da..32289b3 100644
--- a/arch/blackfin/kernel/bfin_gpio.c
+++ b/arch/blackfin/kernel/bfin_gpio.c
@@ -1021,15 +1021,6 @@ int bfin_gpio_irq_request(unsigned gpio, const char *label)
 
 	local_irq_save_hw(flags);
 
-	if (unlikely(reserved_gpio_irq_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
-		if (system_state == SYSTEM_BOOTING)
-			dump_stack();
-		printk(KERN_ERR
-		       "bfin-gpio: GPIO %d is already reserved as gpio-irq !\n",
-		       gpio);
-		local_irq_restore_hw(flags);
-		return -EBUSY;
-	}
 	if (unlikely(reserved_peri_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
 		if (system_state == SYSTEM_BOOTING)
 			dump_stack();
-- 
1.6.3.1

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