linux-kernel - [PATCH v2 1/1] ARM: orion/gpio: Get rid of unused first parameter in orion_gpio

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Message-Id: <20211214140656.53694-1-andriy.shevchenko@linux.intel.com>
Date:   Tue, 14 Dec 2021 16:06:56 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Andrew Lunn <andrew@...n.ch>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        Gregory Clement <gregory.clement@...tlin.com>,
        Russell King <linux@...linux.org.uk>
Subject: [PATCH v2 1/1] ARM: orion/gpio: Get rid of unused first parameter in orion_gpio_init()

The OF node pointer is always NULL, get rid of unused parameter in
orion_gpio_init(). As a side effect it will allow to switch GPIO
library to the fwnode API, as well as in case of resurrecting it here
it should be fwnode_handle anyways.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
v2: wrapped to 80 limit (Russell)
 arch/arm/mach-dove/irq.c                      | 6 +++---
 arch/arm/mach-mv78xx0/irq.c                   | 3 +--
 arch/arm/mach-orion5x/irq.c                   | 2 +-
 arch/arm/plat-orion/gpio.c                    | 8 ++------
 arch/arm/plat-orion/include/plat/orion-gpio.h | 3 +--
 5 files changed, 8 insertions(+), 14 deletions(-)

diff --git a/arch/arm/mach-dove/irq.c b/arch/arm/mach-dove/irq.c
index 31ccbcee2627..d36f6b8269c2 100644
--- a/arch/arm/mach-dove/irq.c
+++ b/arch/arm/mach-dove/irq.c
@@ -73,12 +73,12 @@ void __init dove_init_irq(void)
 	/*
 	 * Initialize gpiolib for GPIOs 0-71.
 	 */
-	orion_gpio_init(NULL, 0, 32, DOVE_GPIO_LO_VIRT_BASE, 0,
+	orion_gpio_init(0, 32, DOVE_GPIO_LO_VIRT_BASE, 0,
 			IRQ_DOVE_GPIO_START, gpio0_irqs);
 
-	orion_gpio_init(NULL, 32, 32, DOVE_GPIO_HI_VIRT_BASE, 0,
+	orion_gpio_init(32, 32, DOVE_GPIO_HI_VIRT_BASE, 0,
 			IRQ_DOVE_GPIO_START + 32, gpio1_irqs);
 
-	orion_gpio_init(NULL, 64, 8, DOVE_GPIO2_VIRT_BASE, 0,
+	orion_gpio_init(64, 8, DOVE_GPIO2_VIRT_BASE, 0,
 			IRQ_DOVE_GPIO_START + 64, gpio2_irqs);
 }
diff --git a/arch/arm/mach-mv78xx0/irq.c b/arch/arm/mach-mv78xx0/irq.c
index 788569e960e1..0b5f055ca1c3 100644
--- a/arch/arm/mach-mv78xx0/irq.c
+++ b/arch/arm/mach-mv78xx0/irq.c
@@ -67,7 +67,6 @@ void __init mv78xx0_init_irq(void)
 	 * registers for core #1 are at an offset of 0x18 from those of
 	 * core #0.)
 	 */
-	orion_gpio_init(NULL, 0, 32, GPIO_VIRT_BASE,
-			mv78xx0_core_index() ? 0x18 : 0,
+	orion_gpio_init(0, 32, GPIO_VIRT_BASE, mv78xx0_core_index() ? 0x18 : 0,
 			IRQ_MV78XX0_GPIO_START, gpio0_irqs);
 }
diff --git a/arch/arm/mach-orion5x/irq.c b/arch/arm/mach-orion5x/irq.c
index ac4af2283bef..1ae775d02d90 100644
--- a/arch/arm/mach-orion5x/irq.c
+++ b/arch/arm/mach-orion5x/irq.c
@@ -49,6 +49,6 @@ void __init orion5x_init_irq(void)
 	/*
 	 * Initialize gpiolib for GPIOs 0-31.
 	 */
-	orion_gpio_init(NULL, 0, 32, GPIO_VIRT_BASE, 0,
+	orion_gpio_init(0, 32, GPIO_VIRT_BASE, 0,
 			IRQ_ORION5X_GPIO_START, gpio0_irqs);
 }
diff --git a/arch/arm/plat-orion/gpio.c b/arch/arm/plat-orion/gpio.c
index 734f0be4f14a..3ef9ecdd6343 100644
--- a/arch/arm/plat-orion/gpio.c
+++ b/arch/arm/plat-orion/gpio.c
@@ -516,8 +516,7 @@ static void orion_gpio_mask_irq(struct irq_data *d)
 	irq_gc_unlock(gc);
 }
 
-void __init orion_gpio_init(struct device_node *np,
-			    int gpio_base, int ngpio,
+void __init orion_gpio_init(int gpio_base, int ngpio,
 			    void __iomem *base, int mask_offset,
 			    int secondary_irq_base,
 			    int irqs[4])
@@ -545,9 +544,6 @@ void __init orion_gpio_init(struct device_node *np,
 	ochip->chip.base = gpio_base;
 	ochip->chip.ngpio = ngpio;
 	ochip->chip.can_sleep = 0;
-#ifdef CONFIG_OF
-	ochip->chip.of_node = np;
-#endif
 	ochip->chip.dbg_show = orion_gpio_dbg_show;
 
 	spin_lock_init(&ochip->lock);
@@ -605,7 +601,7 @@ void __init orion_gpio_init(struct device_node *np,
 			       IRQ_NOREQUEST, IRQ_LEVEL | IRQ_NOPROBE);
 
 	/* Setup irq domain on top of the generic chip. */
-	ochip->domain = irq_domain_add_legacy(np,
+	ochip->domain = irq_domain_add_legacy(NULL,
 					      ochip->chip.ngpio,
 					      ochip->secondary_irq_base,
 					      ochip->secondary_irq_base,
diff --git a/arch/arm/plat-orion/include/plat/orion-gpio.h b/arch/arm/plat-orion/include/plat/orion-gpio.h
index e856b073a9c8..25a2963e0e0f 100644
--- a/arch/arm/plat-orion/include/plat/orion-gpio.h
+++ b/arch/arm/plat-orion/include/plat/orion-gpio.h
@@ -30,8 +30,7 @@ int orion_gpio_led_blink_set(struct gpio_desc *desc, int state,
 void orion_gpio_set_valid(unsigned pin, int mode);
 
 /* Initialize gpiolib. */
-void __init orion_gpio_init(struct device_node *np,
-			    int gpio_base, int ngpio,
+void __init orion_gpio_init(int gpio_base, int ngpio,
 			    void __iomem *base, int mask_offset,
 			    int secondary_irq_base,
 			    int irq[4]);
-- 
2.33.0