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title: SDHI; implement support for HW busy timeout
team: IO
key: e2c455e0-1210-11ea-8389-b359bc6084c5
status: Active
upstream:
comments:
- "currently we use a tasklet to detect busy timeouts"
- "MMC maintainer says this is OKish, but HW timeout would be much better"
- "this is all for supporting MMC_CAP_ERASE properly"
- "MMC_CAP_ERASE has been removed meanwhile, and we set max_busy_timeout, too"
- "we still should care about handling when data timeouts happen"
- "RFT v1: https://patchwork.kernel.org/project/linux-renesas-soc/list/?series=388391&state=*"
- "RFT v2: https://patchwork.kernel.org/project/linux-renesas-soc/list/?series=388435&state=*"
- "needs some refactoring"
- "refactored v1: https://patchwork.kernel.org/project/linux-renesas-soc/list/?series=391145&state=*"
- "refactored series with max_busy_timeout merged"
- "prototype patches for handling data timeout developed by Shimoda-san and reviewed by Wolfram"
- "WAIT_WHILE_BUSY needs to be enabled on top of 'data timeout' patches"
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