linux-kernel - [PATCH v2 3/4] irqchip/meson-gpio: add select trigger type callback

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Message-ID: <20220119070809.15563-4-qianggui.song@amlogic.com>
Date:   Wed, 19 Jan 2022 15:08:08 +0800
From:   Qianggui Song <qianggui.song@...ogic.com>
To:     Thomas Gleixner <tglx@...utronix.de>, Marc Zyngier <maz@...nel.org>
CC:     Qianggui Song <qianggui.song@...ogic.com>,
        Kevin Hilman <khilman@...libre.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-amlogic@...ts.infradead.org>
Subject: [PATCH v2 3/4] irqchip/meson-gpio: add select trigger type callback

Due to some chips may use different registers and offset, provide
a set trigger type call back.

Signed-off-by: Qianggui Song <qianggui.song@...ogic.com>
---
 drivers/irqchip/irq-meson-gpio.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/irqchip/irq-meson-gpio.c b/drivers/irqchip/irq-meson-gpio.c
index eefe15e1b3a6..b511f9532adc 100644
--- a/drivers/irqchip/irq-meson-gpio.c
+++ b/drivers/irqchip/irq-meson-gpio.c
@@ -55,6 +55,8 @@ struct irq_ctl_ops {
 	void (*gpio_irq_sel_pin)(struct meson_gpio_irq_controller *ctl,
 				 unsigned int channel, unsigned long hwirq);
 	void (*gpio_irq_init)(struct meson_gpio_irq_controller *ctl);
+	void (*gpio_irq_sel_type)(struct meson_gpio_irq_controller *ctl,
+				  unsigned int idx, u32 val);
 };
 
 struct meson_gpio_irq_params {
@@ -278,6 +280,12 @@ static int meson_gpio_irq_type_setup(struct meson_gpio_irq_controller *ctl,
 	 */
 	type &= IRQ_TYPE_SENSE_MASK;
 
+	/* Some controllers may have different calculation method*/
+	if (params->ops.gpio_irq_sel_type) {
+		params->ops.gpio_irq_sel_type(ctl, idx, type);
+		return 0;
+	}
+
 	/*
 	 * New controller support EDGE_BOTH trigger. This setting takes
 	 * precedence over the other edge/polarity settings
-- 
2.34.1