linux-kernel - [PATCH 08/10] gpio: mt7621: Switch to dynamic chip name output

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Date:   Wed,  9 Feb 2022 16:26:05 +0000
From:   Marc Zyngier <maz@...nel.org>
To:     linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Grygorii Strashko <grygorii.strashko@...com>,
        Santosh Shilimkar <ssantosh@...nel.org>,
        Kevin Hilman <khilman@...nel.org>,
        Tony Lindgren <tony@...mide.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Vladimir Zapolskiy <vz@...ia.com>,
        Andrew Lunn <andrew@...n.ch>,
        Gregory Clement <gregory.clement@...tlin.com>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        Emil Renner Berthing <kernel@...il.dk>,
        kernel-team@...roid.com
Subject: [PATCH 08/10] gpio: mt7621: Switch to dynamic chip name output

Instead of overloading the name field, use the relevant callback to
output the device name.

Signed-off-by: Marc Zyngier <maz@...nel.org>
---
 drivers/gpio/gpio-mt7621.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-mt7621.c b/drivers/gpio/gpio-mt7621.c
index d8a26e503ca5..14ba4bc141c9 100644
--- a/drivers/gpio/gpio-mt7621.c
+++ b/drivers/gpio/gpio-mt7621.c
@@ -11,6 +11,7 @@
 #include <linux/module.h>
 #include <linux/of_irq.h>
 #include <linux/platform_device.h>
+#include <linux/seq_file.h>
 #include <linux/spinlock.h>
 
 #define MTK_BANK_CNT	3
@@ -188,6 +189,15 @@ mediatek_gpio_irq_type(struct irq_data *d, unsigned int type)
 	return 0;
 }
 
+static void mediatek_irq_print_chip(struct irq_data *d, struct seq_file *p)
+{
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+	struct mtk_gc *rg = to_mediatek_gpio(gc);
+	struct mtk *mtk = container_of(rg - rg->bank, struct mtk, gc_map[0]);
+
+	seq_printf(p, dev_name(mtk->dev));
+}
+
 static int
 mediatek_gpio_xlate(struct gpio_chip *chip,
 		    const struct of_phandle_args *spec, u32 *flags)
@@ -238,11 +248,11 @@ mediatek_gpio_bank_probe(struct device *dev, int bank)
 		return -ENOMEM;
 
 	rg->chip.offset = bank * MTK_BANK_WIDTH;
-	rg->irq_chip.name = dev_name(dev);
 	rg->irq_chip.irq_unmask = mediatek_gpio_irq_unmask;
 	rg->irq_chip.irq_mask = mediatek_gpio_irq_mask;
 	rg->irq_chip.irq_mask_ack = mediatek_gpio_irq_mask;
 	rg->irq_chip.irq_set_type = mediatek_gpio_irq_type;
+	rg->irq_chip.irq_print_chip = mediatek_gpio_irq_print_chip;
 
 	if (mtk->gpio_irq) {
 		struct gpio_irq_chip *girq;
-- 
2.30.2