From: Andy Shevchenko andriy.shevchenko@linux.intel.com
[ Upstream commit 67d33aecd030226f0a577eb683aaa6853ecf8f91 ]
Keeping the IRQ chip definition static shares it with multiple instances of the GPIO chip in the system. This is bad and now we get this warning from GPIO library:
"detected irqchip that is shared with multiple gpiochips: please fix the driver."
Hence, move the IRQ chip definition from being driver static into the struct intel_pinctrl. So a unique IRQ chip is used for each GPIO chip instance.
This patch is heavily based on the attachment to the bug by Christoph Marz.
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=202543 Fixes: 6e08d6bbebeb ("pinctrl: Add Intel Cherryview/Braswell pin controller support") Depends-on: 83b9dc11312f ("pinctrl: cherryview: Associate IRQ descriptors to irqdomain") Signed-off-by: Andy Shevchenko andriy.shevchenko@linux.intel.com Signed-off-by: Mika Westerberg mika.westerberg@linux.intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/pinctrl/intel/pinctrl-cherryview.c | 24 +++++++++++----------- 1 file changed, 12 insertions(+), 12 deletions(-)
diff --git a/drivers/pinctrl/intel/pinctrl-cherryview.c b/drivers/pinctrl/intel/pinctrl-cherryview.c index 9eab508395814..f16baf9b86962 100644 --- a/drivers/pinctrl/intel/pinctrl-cherryview.c +++ b/drivers/pinctrl/intel/pinctrl-cherryview.c @@ -157,6 +157,7 @@ struct chv_pin_context { * @pctldesc: Pin controller description * @pctldev: Pointer to the pin controller device * @chip: GPIO chip in this pin controller + * @irqchip: IRQ chip in this pin controller * @regs: MMIO registers * @intr_lines: Stores mapping between 16 HW interrupt wires and GPIO * offset (in GPIO number space) @@ -170,6 +171,7 @@ struct chv_pinctrl { struct pinctrl_desc pctldesc; struct pinctrl_dev *pctldev; struct gpio_chip chip; + struct irq_chip irqchip; void __iomem *regs; unsigned intr_lines[16]; const struct chv_community *community; @@ -1477,16 +1479,6 @@ static int chv_gpio_irq_type(struct irq_data *d, unsigned type) return 0; }
-static struct irq_chip chv_gpio_irqchip = { - .name = "chv-gpio", - .irq_startup = chv_gpio_irq_startup, - .irq_ack = chv_gpio_irq_ack, - .irq_mask = chv_gpio_irq_mask, - .irq_unmask = chv_gpio_irq_unmask, - .irq_set_type = chv_gpio_irq_type, - .flags = IRQCHIP_SKIP_SET_WAKE, -}; - static void chv_gpio_irq_handler(struct irq_desc *desc) { struct gpio_chip *gc = irq_desc_get_handler_data(desc); @@ -1626,7 +1618,15 @@ static int chv_gpio_probe(struct chv_pinctrl *pctrl, int irq) } }
- ret = gpiochip_irqchip_add(chip, &chv_gpio_irqchip, 0, + pctrl->irqchip.name = "chv-gpio"; + pctrl->irqchip.irq_startup = chv_gpio_irq_startup; + pctrl->irqchip.irq_ack = chv_gpio_irq_ack; + pctrl->irqchip.irq_mask = chv_gpio_irq_mask; + pctrl->irqchip.irq_unmask = chv_gpio_irq_unmask; + pctrl->irqchip.irq_set_type = chv_gpio_irq_type; + pctrl->irqchip.flags = IRQCHIP_SKIP_SET_WAKE; + + ret = gpiochip_irqchip_add(chip, &pctrl->irqchip, 0, handle_bad_irq, IRQ_TYPE_NONE); if (ret) { dev_err(pctrl->dev, "failed to add IRQ chip\n"); @@ -1643,7 +1643,7 @@ static int chv_gpio_probe(struct chv_pinctrl *pctrl, int irq) } }
- gpiochip_set_chained_irqchip(chip, &chv_gpio_irqchip, irq, + gpiochip_set_chained_irqchip(chip, &pctrl->irqchip, irq, chv_gpio_irq_handler); return 0; }