From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sasha Levin Subject: [PATCH AUTOSEL 4.20 002/117] gpio: pl061: Move irq_chip definition inside struct pl061 Date: Tue, 8 Jan 2019 14:24:30 -0500 Message-ID: <20190108192628.121270-2-sashal@kernel.org> References: <20190108192628.121270-1-sashal@kernel.org> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20190108192628.121270-1-sashal@kernel.org> Sender: linux-kernel-owner@vger.kernel.org To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Manivannan Sadhasivam , Linus Walleij , Sasha Levin , linux-gpio@vger.kernel.org List-Id: linux-gpio@vger.kernel.org From: Manivannan Sadhasivam [ Upstream commit ed8dce4c6f726b7f3c6bf40859b92a9e32f189c1 ] Keeping the irq_chip definition static will make it shared with multiple giochips in the system. This practice is considered to be bad and now we will get the below warning from gpiolib core: "detected irqchip that is shared with multiple gpiochips: please fix the driver." Hence, move the irq_chip definition from static to `struct pl061` for using a unique irq_chip for each gpiochip. Signed-off-by: Manivannan Sadhasivam Signed-off-by: Linus Walleij Signed-off-by: Sasha Levin --- drivers/gpio/gpio-pl061.c | 21 ++++++++++----------- 1 file changed, 10 insertions(+), 11 deletions(-) diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c index 2afd9de84a0d..dc42571e6fdc 100644 --- a/drivers/gpio/gpio-pl061.c +++ b/drivers/gpio/gpio-pl061.c @@ -54,6 +54,7 @@ struct pl061 { void __iomem *base; struct gpio_chip gc; + struct irq_chip irq_chip; int parent_irq; #ifdef CONFIG_PM @@ -281,15 +282,6 @@ static int pl061_irq_set_wake(struct irq_data *d, unsigned int state) return irq_set_irq_wake(pl061->parent_irq, state); } -static struct irq_chip pl061_irqchip = { - .name = "pl061", - .irq_ack = pl061_irq_ack, - .irq_mask = pl061_irq_mask, - .irq_unmask = pl061_irq_unmask, - .irq_set_type = pl061_irq_type, - .irq_set_wake = pl061_irq_set_wake, -}; - static int pl061_probe(struct amba_device *adev, const struct amba_id *id) { struct device *dev = &adev->dev; @@ -328,6 +320,13 @@ static int pl061_probe(struct amba_device *adev, const struct amba_id *id) /* * irq_chip support */ + pl061->irq_chip.name = dev_name(dev); + pl061->irq_chip.irq_ack = pl061_irq_ack; + pl061->irq_chip.irq_mask = pl061_irq_mask; + pl061->irq_chip.irq_unmask = pl061_irq_unmask; + pl061->irq_chip.irq_set_type = pl061_irq_type; + pl061->irq_chip.irq_set_wake = pl061_irq_set_wake; + writeb(0, pl061->base + GPIOIE); /* disable irqs */ irq = adev->irq[0]; if (irq < 0) { @@ -336,14 +335,14 @@ static int pl061_probe(struct amba_device *adev, const struct amba_id *id) } pl061->parent_irq = irq; - ret = gpiochip_irqchip_add(&pl061->gc, &pl061_irqchip, + ret = gpiochip_irqchip_add(&pl061->gc, &pl061->irq_chip, 0, handle_bad_irq, IRQ_TYPE_NONE); if (ret) { dev_info(&adev->dev, "could not add irqchip\n"); return ret; } - gpiochip_set_chained_irqchip(&pl061->gc, &pl061_irqchip, + gpiochip_set_chained_irqchip(&pl061->gc, &pl061->irq_chip, irq, pl061_irq_handler); amba_set_drvdata(adev, pl061); -- 2.19.1