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Grygorii Strashko
80ac93c274
Now acking of edge irqs happens the following way: - omap_gpio_irq_handler - "isr" = read irq status - omap_clear_gpio_irqbank(bank, isr_saved & ~level_mask); ^ clear edge status, so irq can be accepted - loop while "isr" generic_handle_irq() - handle_edge_irq() - desc->irq_data.chip->irq_ack(&desc->irq_data); - omap_gpio_ack_irq() it might be that at this moment edge IRQ was triggered again and it will be cleared and IRQ will be lost. Use handle_simple_irq and clear edge interrupts early without disabling them in omap_gpio_irq_handler to avoid loosing interrupts. [1] https://marc.info/?l=linux-omap&m=149004465313534&w=2 Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Ladislav Michl <ladis@linux-mips.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.