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authorBrian Masney <masneyb@onstation.org>2019-02-08 03:16:25 +0100
committerLinus Walleij <linus.walleij@linaro.org>2019-02-13 09:24:44 +0100
commitee08e24c2e761e6aa3ef2c03cc2004e11fe111b3 (patch)
tree92cb0d35569fb945f0790d22e578df0fb59988f0 /ipc/mq_sysctl.c
parentmfd: pm8xxx: convert to v2 irq interfaces to support hierarchical IRQ chips (diff)
downloadlinux-ee08e24c2e761e6aa3ef2c03cc2004e11fe111b3.tar.xz
linux-ee08e24c2e761e6aa3ef2c03cc2004e11fe111b3.zip
mfd: pm8xxx: disassociate old virq if hwirq mapping already exists
Check to see if the hwirq is already associated with another virq on this IRQ domain. If so, then disassociate it before associating the hwirq with the new virq. This is a temporary hack that is needed in order to not break git bisect for existing boards. The next patch in this series converts ssbi-gpio to be a hierarchical IRQ chip, then there are several patches to update all of the device tree files, and finally this patch will be reverted within the same patch series. IRQs for ssbi-gpio are all initially setup without an IRQ hierarchy this driver is probed due to the interrupts property in device tree. Once ssbi-gpio is converted to be a hierarchical IRQ chip in the next patch, existing users of gpio[d]_to_irq() will call pmic_gpio_to_irq(), and that will use the new IRQ chip code in ssbi-gpio that sets up the IRQ in an IRQ hierarchy. The hwirq is now associated with two Linux virqs and interrupts will not work as expected. This patch corrects that issue. This change was tested on an APQ8060 DragonBoard. Signed-off-by: Brian Masney <masneyb@onstation.org> Tested-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'ipc/mq_sysctl.c')
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