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Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe

From Mika Westerberg <mika.westerberg@linux.intel.com>
Newsgroups linux.kernel
Subject Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe
Date 2016-09-09 11:00 +0200
Message-ID <sfpPc-D1-3@gated-at.bofh.it> (permalink)
References (5 earlier) <sf4B3-4xM-3@gated-at.bofh.it> <sf4KK-4Bb-51@gated-at.bofh.it> <sfan8-87F-13@gated-at.bofh.it> <sfnu1-7P4-1@gated-at.bofh.it> <sfpma-tM-25@gated-at.bofh.it>
Organization Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo

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On Fri, Sep 09, 2016 at 04:23:58PM +0800, Phidias Chiang wrote:
> On Fri, Sep 09, 2016 at 09:18:34AM +0300, Mika Westerberg wrote:
> > On Fri, Sep 09, 2016 at 12:28:43AM +0800, Phidias Chiang wrote:
> > 
> > Hmm, how can that happen? The patch removes clearing of INTMASK and only
> > other place where it is cleared temporarily is on resume. Can you add
> > dev_info() calls like:
> > 
> > 	/* Clear all interrupts */
> > 	chv_writel(0xffff, pctrl->regs + CHV_INTSTAT);
> > 	dev_info(pctrl->dev, "INTMASK0: 0x%08x\n", readl(pctrl->regs + CHV_INTMASK));
> > 
> > 	...
> > 
> > 	gpiochip_set_chained_irqchip(chip, &chv_gpio_irqchip, irq,
> > 				     chv_gpio_irq_handler);
> > 	dev_info(pctrl->dev, "INTMASK1: 0x%08x\n", readl(pctrl->regs + CHV_INTMASK));
> > 	return 0;
> > 
> > It should print the same values both time.
> > 
> > Also which interrupt does not work and can you send me output of
> > /proc/interrupts?
> 
> Output in dmesg:
> [    2.054475] cherryview-pinctrl INT33FF:00: INTMASK0: 0x00000006
> [    2.055247] cherryview-pinctrl INT33FF:00: INTMASK1: 0x00000000
> [    2.055375] cherryview-pinctrl INT33FF:01: INTMASK0: 0x00004000
> [    2.056931] cherryview-pinctrl INT33FF:01: INTMASK1: 0x00000000
> [    2.057036] cherryview-pinctrl INT33FF:02: INTMASK0: 0x00000000
> [    2.057367] cherryview-pinctrl INT33FF:02: INTMASK1: 0x00000000
> [    2.057489] cherryview-pinctrl INT33FF:03: INTMASK0: 0x00000000
> [    2.058337] cherryview-pinctrl INT33FF:03: INTMASK1: 0x00000000
> 
> So it's somehow got cleared in the process after.

Only other place where we touch INTMASK register is
chv_gpio_irq_mask_unmask(). Can you add some debug there to find out the
caller?

> And the following link is the complete /proc/interrupts:
> http://pastebin.com/qwamyKZb

Looks quite normal.

> THe interrupt doesn't work is 9, when I made it work it responsed to
> pressing hotkeys.

9 is the SCI interrupt used by ACPI which explains.

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Thread

Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Phidias Chiang <phidias.chiang@canonical.com> - 2016-09-08 12:20 +0200
  Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Mika Westerberg <mika.westerberg@linux.intel.com> - 2016-09-08 12:30 +0200
    Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Phidias Chiang <phidias.chiang@canonical.com> - 2016-09-08 18:30 +0200
      Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Mika Westerberg <mika.westerberg@linux.intel.com> - 2016-09-09 08:30 +0200
        Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Phidias Chiang <phidias.chiang@canonical.com> - 2016-09-09 10:30 +0200
          Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Mika Westerberg <mika.westerberg@linux.intel.com> - 2016-09-09 11:00 +0200
            Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Mika Westerberg <mika.westerberg@linux.intel.com> - 2016-09-11 10:10 +0200
              Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Phidias Chiang <phidias.chiang@canonical.com> - 2016-09-12 09:00 +0200
                Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Mika Westerberg <mika.westerberg@linux.intel.com> - 2016-09-12 11:10 +0200
                Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Phidias Chiang <phidias.chiang@canonical.com> - 2016-09-12 15:10 +0200
                Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Mika Westerberg <mika.westerberg@linux.intel.com> - 2016-09-12 15:30 +0200
                Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Linus Walleij <linus.walleij@linaro.org> - 2016-09-13 11:20 +0200
                Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Mika Westerberg <mika.westerberg@linux.intel.com> - 2016-09-13 11:40 +0200
                Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Linus Walleij <linus.walleij@linaro.org> - 2016-09-13 14:30 +0200
                Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Mika Westerberg <mika.westerberg@linux.intel.com> - 2016-09-13 15:00 +0200
                Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Linus Walleij <linus.walleij@linaro.org> - 2016-09-13 23:00 +0200
                Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Mika Westerberg <mika.westerberg@linux.intel.com> - 2016-09-14 10:30 +0200
                Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Linus Walleij <linus.walleij@linaro.org> - 2016-09-14 14:50 +0200
                Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Mika Westerberg <mika.westerberg@linux.intel.com> - 2016-09-14 17:20 +0200
                Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Linus Walleij <linus.walleij@linaro.org> - 2016-09-15 14:50 +0200
                Re: [PATCH] pinctrl: cherryview: Do not mask all interrupts on probe Mika Westerberg <mika.westerberg@linux.intel.com> - 2016-09-15 17:50 +0200
                [PATCH 2/2] pinctrl: cherryview: Do not add all southwest and north GPIOs to IRQ domain Mika Westerberg <mika.westerberg@linux.intel.com> - 2016-09-15 18:00 +0200
                [PATCH 1/2] gpiolib: Add possibility to mask which GPIOs are added to IRQ domain Mika Westerberg <mika.westerberg@linux.intel.com> - 2016-09-15 18:00 +0200
                Re: [PATCH 1/2] gpiolib: Add possibility to mask which GPIOs are  added to IRQ domain Marc Zyngier <marc.zyngier@arm.com> - 2016-09-15 18:10 +0200
                Re: [PATCH 1/2] gpiolib: Add possibility to mask which GPIOs are  added to IRQ domain Mika Westerberg <mika.westerberg@linux.intel.com> - 2016-09-15 20:20 +0200
                Re: [PATCH 1/2] gpiolib: Add possibility to mask which GPIOs are  added to IRQ domain Thomas Gleixner <tglx@linutronix.de> - 2016-09-15 21:00 +0200
                Re: [PATCH 1/2] gpiolib: Add possibility to mask which GPIOs are  added to IRQ domain Linus Walleij <linus.walleij@linaro.org> - 2016-09-18 13:20 +0200

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