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From: Rosen Penev <rosenp@gmail.com>
To: linux-gpio@vger.kernel.org
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Nicholas Piggin <npiggin@gmail.com>,
	"Christophe Leroy (CS GROUP)" <chleroy@kernel.org>,
	Linus Walleij <linusw@kernel.org>,
	Bartosz Golaszewski <brgl@kernel.org>,
	linuxppc-dev@lists.ozlabs.org (open list:LINUX FOR POWERPC
	(32-BIT AND 64-BIT)), linux-kernel@vger.kernel.org (open list)
Subject: [PATCHv2 2/8] gpio: ppc44x: update all 4xx to 44x
Date: Mon,  3 Aug 2026 15:35:33 -0700	[thread overview]
Message-ID: <20260803223539.86303-3-rosenp@gmail.com> (raw)
In-Reply-To: <20260803223539.86303-1-rosenp@gmail.com>

The kernel lost support for 4xx platforms and now only supports 44x.
Since this driver is being moved to drivers/gpio/ , take the opportunity
to modernize the name.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
---
 drivers/gpio/gpio-ppc44x.c | 68 +++++++++++++++++++-------------------
 1 file changed, 34 insertions(+), 34 deletions(-)

diff --git a/drivers/gpio/gpio-ppc44x.c b/drivers/gpio/gpio-ppc44x.c
index 4413a94cf7a6..9b874ff8b124 100644
--- a/drivers/gpio/gpio-ppc44x.c
+++ b/drivers/gpio/gpio-ppc44x.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
- * PPC4xx gpio driver
+ * PPC44x gpio driver
  *
  * Copyright (c) 2008 Harris Corporation
  * Copyright (c) 2008 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
@@ -23,7 +23,7 @@
 #define GPIO_MASK2(gpio)	(0xc0000000 >> ((gpio) * 2))
 
 /* Physical GPIO register layout */
-struct ppc4xx_gpio {
+struct ppc44x_gpio {
 	__be32 or;
 	__be32 tcr;
 	__be32 osrl;
@@ -44,7 +44,7 @@ struct ppc4xx_gpio {
 	__be32 isr3h;
 };
 
-struct ppc4xx_gpio_chip {
+struct ppc44x_gpio_chip {
 	struct gpio_chip gc;
 	void __iomem *regs;
 	spinlock_t lock;
@@ -56,19 +56,19 @@ struct ppc4xx_gpio_chip {
  * There are a maximum of 32 gpios in each gpio controller.
  */
 
-static int ppc4xx_gpio_get(struct gpio_chip *gc, unsigned int gpio)
+static int ppc44x_gpio_get(struct gpio_chip *gc, unsigned int gpio)
 {
-	struct ppc4xx_gpio_chip *chip = gpiochip_get_data(gc);
-	struct ppc4xx_gpio __iomem *regs = chip->regs;
+	struct ppc44x_gpio_chip *chip = gpiochip_get_data(gc);
+	struct ppc44x_gpio __iomem *regs = chip->regs;
 
 	return !!(in_be32(&regs->ir) & GPIO_MASK(gpio));
 }
 
 static inline void
-__ppc4xx_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
+__ppc44x_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
 {
-	struct ppc4xx_gpio_chip *chip = gpiochip_get_data(gc);
-	struct ppc4xx_gpio __iomem *regs = chip->regs;
+	struct ppc44x_gpio_chip *chip = gpiochip_get_data(gc);
+	struct ppc44x_gpio __iomem *regs = chip->regs;
 
 	if (val)
 		setbits32(&regs->or, GPIO_MASK(gpio));
@@ -76,14 +76,14 @@ __ppc4xx_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
 		clrbits32(&regs->or, GPIO_MASK(gpio));
 }
 
-static int ppc4xx_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
+static int ppc44x_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
 {
-	struct ppc4xx_gpio_chip *chip = gpiochip_get_data(gc);
+	struct ppc44x_gpio_chip *chip = gpiochip_get_data(gc);
 	unsigned long flags;
 
 	spin_lock_irqsave(&chip->lock, flags);
 
-	__ppc4xx_gpio_set(gc, gpio, val);
+	__ppc44x_gpio_set(gc, gpio, val);
 
 	spin_unlock_irqrestore(&chip->lock, flags);
 
@@ -92,10 +92,10 @@ static int ppc4xx_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
 	return 0;
 }
 
-static int ppc4xx_gpio_dir_in(struct gpio_chip *gc, unsigned int gpio)
+static int ppc44x_gpio_dir_in(struct gpio_chip *gc, unsigned int gpio)
 {
-	struct ppc4xx_gpio_chip *chip = gpiochip_get_data(gc);
-	struct ppc4xx_gpio __iomem *regs = chip->regs;
+	struct ppc44x_gpio_chip *chip = gpiochip_get_data(gc);
+	struct ppc44x_gpio __iomem *regs = chip->regs;
 	unsigned long flags;
 
 	spin_lock_irqsave(&chip->lock, flags);
@@ -121,16 +121,16 @@ static int ppc4xx_gpio_dir_in(struct gpio_chip *gc, unsigned int gpio)
 }
 
 static int
-ppc4xx_gpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
+ppc44x_gpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
 {
-	struct ppc4xx_gpio_chip *chip = gpiochip_get_data(gc);
-	struct ppc4xx_gpio __iomem *regs = chip->regs;
+	struct ppc44x_gpio_chip *chip = gpiochip_get_data(gc);
+	struct ppc44x_gpio __iomem *regs = chip->regs;
 	unsigned long flags;
 
 	spin_lock_irqsave(&chip->lock, flags);
 
 	/* First set initial value */
-	__ppc4xx_gpio_set(gc, gpio, val);
+	__ppc44x_gpio_set(gc, gpio, val);
 
 	/* Disable open-drain function */
 	clrbits32(&regs->odr, GPIO_MASK(gpio));
@@ -154,11 +154,11 @@ ppc4xx_gpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
 	return 0;
 }
 
-static int ppc4xx_gpio_probe(struct platform_device *ofdev)
+static int ppc44x_gpio_probe(struct platform_device *ofdev)
 {
 	struct device *dev = &ofdev->dev;
 	struct device_node *np = dev->of_node;
-	struct ppc4xx_gpio_chip *chip;
+	struct ppc44x_gpio_chip *chip;
 	struct gpio_chip *gc;
 
 	chip = devm_kzalloc(dev, sizeof(*chip), GFP_KERNEL);
@@ -172,10 +172,10 @@ static int ppc4xx_gpio_probe(struct platform_device *ofdev)
 	gc->parent = dev;
 	gc->base = -1;
 	gc->ngpio = 32;
-	gc->direction_input = ppc4xx_gpio_dir_in;
-	gc->direction_output = ppc4xx_gpio_dir_out;
-	gc->get = ppc4xx_gpio_get;
-	gc->set = ppc4xx_gpio_set;
+	gc->direction_input = ppc44x_gpio_dir_in;
+	gc->direction_output = ppc44x_gpio_dir_out;
+	gc->get = ppc44x_gpio_get;
+	gc->set = ppc44x_gpio_set;
 
 	gc->label = devm_kasprintf(dev, GFP_KERNEL, "%pOF", np);
 	if (!gc->label)
@@ -188,24 +188,24 @@ static int ppc4xx_gpio_probe(struct platform_device *ofdev)
 	return devm_gpiochip_add_data(dev, gc, chip);
 }
 
-static const struct of_device_id ppc4xx_gpio_match[] = {
+static const struct of_device_id ppc44x_gpio_match[] = {
 	{
 		.compatible = "ibm,ppc4xx-gpio",
 	},
 	{},
 };
-MODULE_DEVICE_TABLE(of, ppc4xx_gpio_match);
+MODULE_DEVICE_TABLE(of, ppc44x_gpio_match);
 
-static struct platform_driver ppc4xx_gpio_driver = {
-	.probe		= ppc4xx_gpio_probe,
+static struct platform_driver ppc44x_gpio_driver = {
+	.probe		= ppc44x_gpio_probe,
 	.driver		= {
-		.name	= "ppc4xx-gpio",
-		.of_match_table	= ppc4xx_gpio_match,
+		.name	= "ppc44x-gpio",
+		.of_match_table	= ppc44x_gpio_match,
 	},
 };
 
-static int __init ppc4xx_gpio_init(void)
+static int __init ppc44x_gpio_init(void)
 {
-	return platform_driver_register(&ppc4xx_gpio_driver);
+	return platform_driver_register(&ppc44x_gpio_driver);
 }
-arch_initcall(ppc4xx_gpio_init);
+arch_initcall(ppc44x_gpio_init);
-- 
2.55.0


  parent reply	other threads:[~2026-08-03 22:35 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-03 22:35 [PATCHv2 0/8] gpio: move ppc4xx driver to drivers/gpio and modernize Rosen Penev
2026-08-03 22:35 ` [PATCHv2 1/8] gpio: move ppc4xx gpio driver from arch/powerpc to drivers/gpio Rosen Penev
2026-08-03 22:35 ` Rosen Penev [this message]
2026-08-03 22:35 ` [PATCHv2 3/8] gpio: ppc44x: Use module platform driver helper for GPIO Rosen Penev
2026-08-03 22:35 ` [PATCHv2 4/8] gpio: ppc44x: Use platform resource helper for GPIO MMIO Rosen Penev
2026-08-03 22:35 ` [PATCHv2 5/8] gpio: ppc44x: Convert GPIO to generic MMIO Rosen Penev
2026-08-03 22:35 ` [PATCHv2 6/8] gpio: ppc44x: drop PPC-specific IO helpers Rosen Penev
2026-08-03 22:35 ` [PATCHv2 7/8] gpio: ppc44x: fix undefined behavior in GPIO_MASK2 macro Rosen Penev
2026-08-03 22:35 ` [PATCHv2 8/8] gpio: ppc44x: use dev_name() for chip label Rosen Penev
2026-08-06 22:15 ` [PATCHv2 0/8] gpio: move ppc4xx driver to drivers/gpio and modernize Linus Walleij
2026-08-07  3:54   ` Madhavan Srinivasan

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