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c7cd630a97
The TMIO mmc cannot detect the card insertion in native_hotplug mode
if the driver is probed without a card inserted.
The reason is obvious; all IRQs are disabled by tmio_mmc_host_probe(),
as follows:
tmio_mmc_disable_mmc_irqs(_host, TMIO_MASK_ALL);
The card event IRQs are first enabled by tmio_mmc_start_command() as
follows:
if (!host->native_hotplug)
irq_mask &= ~(TMIO_STAT_CARD_REMOVE | TMIO_STAT_CARD_INSERT);
tmio_mmc_enable_mmc_irqs(host, irq_mask);
If the driver is probed without a card, tmio_mmc_start_command() is
never called in the first place. So, the card is never detected.
The card event IRQs must be enabled in probe/resume functions.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
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| README | ||
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.