[ARM] 3192/1: Remove gpio_isr_line_clear() API from IXP4xx

Patch from Deepak Saxena

Other than interrupt masking purposes, this API is only used when
configuring interrupt lines and this patch moves that functionality
directly into the ixp4xx_set_irq_type() implementation as board level
PCI code should not need to worry about those details.

Signed-off-by: Deepak Saxena <dsaxena@plexity.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

6 files changed, 3 insertions, 23 deletions

diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c
index f3c687cf007..9f33cb21e7f 100644
--- a/arch/arm/mach-ixp4xx/common.c
+++ b/arch/arm/mach-ixp4xx/common.c
@@ -142,6 +142,8 @@ static int ixp4xx_set_irq_type(unsigned int irq, unsigned int type)
 	*int_reg &= ~(IXP4XX_GPIO_STYLE_CLEAR <<
 	    		(line * IXP4XX_GPIO_STYLE_SIZE));
 
+	*IXP4XX_GPIO_GPISR = (1 << line);
+
 	/* Set the new style */
 	*int_reg |= (int_style << (line * IXP4XX_GPIO_STYLE_SIZE));
 
@@ -169,7 +171,7 @@ static void ixp4xx_irq_ack(unsigned int irq)
 	int line = (irq < 32) ? irq2gpio[irq] : -1;
 
 	if (line >= 0)
-		gpio_line_isr_clear(line);
+		*IXP4XX_GPIO_GPISR = (1 << line);
 }
 
 /*
diff --git a/arch/arm/mach-ixp4xx/coyote-pci.c b/arch/arm/mach-ixp4xx/coyote-pci.c
index 60de8a94cff..e6b7fcd923f 100644
--- a/arch/arm/mach-ixp4xx/coyote-pci.c
+++ b/arch/arm/mach-ixp4xx/coyote-pci.c
@@ -33,9 +33,6 @@ void __init coyote_pci_preinit(void)
 	set_irq_type(IRQ_COYOTE_PCI_SLOT0, IRQT_LOW);
 	set_irq_type(IRQ_COYOTE_PCI_SLOT1, IRQT_LOW);
 
-	gpio_line_isr_clear(COYOTE_PCI_SLOT0_PIN);
-	gpio_line_isr_clear(COYOTE_PCI_SLOT1_PIN);
-
 	ixp4xx_pci_preinit();
 }
 
diff --git a/arch/arm/mach-ixp4xx/ixdp425-pci.c b/arch/arm/mach-ixp4xx/ixdp425-pci.c
index f9a1d3e7d69..da415d5d7f3 100644
--- a/arch/arm/mach-ixp4xx/ixdp425-pci.c
+++ b/arch/arm/mach-ixp4xx/ixdp425-pci.c
@@ -32,11 +32,6 @@ void __init ixdp425_pci_preinit(void)
 	set_irq_type(IRQ_IXDP425_PCI_INTC, IRQT_LOW);
 	set_irq_type(IRQ_IXDP425_PCI_INTD, IRQT_LOW);
 
-	gpio_line_isr_clear(IXDP425_PCI_INTA_PIN);
-	gpio_line_isr_clear(IXDP425_PCI_INTB_PIN);
-	gpio_line_isr_clear(IXDP425_PCI_INTC_PIN);
-	gpio_line_isr_clear(IXDP425_PCI_INTD_PIN);
-
 	ixp4xx_pci_preinit();
 }
 
diff --git a/arch/arm/mach-ixp4xx/ixdpg425-pci.c b/arch/arm/mach-ixp4xx/ixdpg425-pci.c
index fe5e7660de1..526fb6175bc 100644
--- a/arch/arm/mach-ixp4xx/ixdpg425-pci.c
+++ b/arch/arm/mach-ixp4xx/ixdpg425-pci.c
@@ -32,9 +32,6 @@ void __init ixdpg425_pci_preinit(void)
 	set_irq_type(IRQ_IXP4XX_GPIO6, IRQT_LOW);
 	set_irq_type(IRQ_IXP4XX_GPIO7, IRQT_LOW);
 
-	gpio_line_isr_clear(6);
-	gpio_line_isr_clear(7);
-
 	ixp4xx_pci_preinit();
 }
 
diff --git a/arch/arm/mach-ixp4xx/nslu2-pci.c b/arch/arm/mach-ixp4xx/nslu2-pci.c
index a575f2e0b2c..ece860444d5 100644
--- a/arch/arm/mach-ixp4xx/nslu2-pci.c
+++ b/arch/arm/mach-ixp4xx/nslu2-pci.c
@@ -28,14 +28,6 @@ void __init nslu2_pci_preinit(void)
 	set_irq_type(IRQ_NSLU2_PCI_INTB, IRQT_LOW);
 	set_irq_type(IRQ_NSLU2_PCI_INTC, IRQT_LOW);
 
-	gpio_line_isr_clear(NSLU2_PCI_INTA_PIN);
-	gpio_line_isr_clear(NSLU2_PCI_INTB_PIN);
-	gpio_line_isr_clear(NSLU2_PCI_INTC_PIN);
-
-	/* INTD is not configured as GPIO is used
-	 * for the power input button.
-	 */
-
 	ixp4xx_pci_preinit();
 }
 
diff --git a/arch/arm/mach-ixp4xx/nslu2-power.c b/arch/arm/mach-ixp4xx/nslu2-power.c
index 18fbc8c0fb3..b0ad9e901f6 100644
--- a/arch/arm/mach-ixp4xx/nslu2-power.c
+++ b/arch/arm/mach-ixp4xx/nslu2-power.c
@@ -54,9 +54,6 @@ static int __init nslu2_power_init(void)
 	set_irq_type(NSLU2_RB_IRQ, IRQT_LOW);
 	set_irq_type(NSLU2_PB_IRQ, IRQT_HIGH);
 
-	gpio_line_isr_clear(NSLU2_RB_GPIO);
-	gpio_line_isr_clear(NSLU2_PB_GPIO);
-
 	if (request_irq(NSLU2_RB_IRQ, &nslu2_reset_handler,
 		SA_INTERRUPT, "NSLU2 reset button", NULL) < 0) {