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ec97863cac
If the card type is SD combo(MMC_TYPE_SD_COMBO) and the memory part does not support wider bus(SD_SCR_BUS_WIDTH_4), nothing will be done except return 0. However, we should check whether IO part support wider bus or not. We should use available IO ability if supported. In addition, there's a duplicated check to MMC_CAP_4_BIT_DATA since sdio_enable_wide() will include that check. And we can also save one call site to sdio_enable_wide() after this change. Signed-off-by: Yue Hu <huyue2@yulong.com> Link: https://lore.kernel.org/r/20200608103009.5000-1-zbestahu@gmail.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> |
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| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
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| sound | ||
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| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
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| .gitignore | ||
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| COPYING | ||
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| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
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.