linux-kernel - [PATCH v2] gpio/rockchip: Convert to generic_handle_domain

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Message-Id: <20220824010605.14256-1-jeffy.chen@rock-chips.com>
Date:   Wed, 24 Aug 2022 09:06:05 +0800
From:   Jeffy Chen <jeffy.chen@...k-chips.com>
To:     Heiko Stuebner <heiko@...ech.de>
Cc:     Jianqun Xu <jay.xu@...k-chips.com>,
        Jeffy Chen <jeffy.chen@...k-chips.com>,
        linux-rockchip@...ts.infradead.org,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v2] gpio/rockchip: Convert to generic_handle_domain_irq()

Follow commit dbd1c54fc820 ("gpio: Bulk conversion to
generic_handle_domain_irq()").

Signed-off-by: Jeffy Chen <jeffy.chen@...k-chips.com>
---

Changes in v2:
Use for_each_set_bit().

 drivers/gpio/gpio-rockchip.c | 21 +++++----------------
 1 file changed, 5 insertions(+), 16 deletions(-)

diff --git a/drivers/gpio/gpio-rockchip.c b/drivers/gpio/gpio-rockchip.c
index e342a6dc4c6c..03b05a56a66f 100644
--- a/drivers/gpio/gpio-rockchip.c
+++ b/drivers/gpio/gpio-rockchip.c
@@ -324,26 +324,15 @@ static void rockchip_irq_demux(struct irq_desc *desc)
 {
 	struct irq_chip *chip = irq_desc_get_chip(desc);
 	struct rockchip_pin_bank *bank = irq_desc_get_handler_data(desc);
-	u32 pend;
+	unsigned long pending;
+	unsigned int irq;
 
 	dev_dbg(bank->dev, "got irq for bank %s\n", bank->name);
 
 	chained_irq_enter(chip, desc);
 
-	pend = readl_relaxed(bank->reg_base + bank->gpio_regs->int_status);
-
-	while (pend) {
-		unsigned int irq, virq;
-
-		irq = __ffs(pend);
-		pend &= ~BIT(irq);
-		virq = irq_find_mapping(bank->domain, irq);
-
-		if (!virq) {
-			dev_err(bank->dev, "unmapped irq %d\n", irq);
-			continue;
-		}
-
+	pending = readl_relaxed(bank->reg_base + bank->gpio_regs->int_status);
+	for_each_set_bit(irq, &pending, 32) {
 		dev_dbg(bank->dev, "handling irq %d\n", irq);
 
 		/*
@@ -377,7 +366,7 @@ static void rockchip_irq_demux(struct irq_desc *desc)
 			} while ((data & BIT(irq)) != (data_old & BIT(irq)));
 		}
 
-		generic_handle_irq(virq);
+		generic_handle_domain_irq(bank->domain, irq);
 	}
 
 	chained_irq_exit(chip, desc);
-- 
2.20.1