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| author | Eugeniu Rosca <[email protected]> | 2020-05-14 22:02:46 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2020-05-15 13:41:13 +0000 |
| commit | 76e1ef1d81a4129d7e2fb8c48c83b166d1c8e040 (patch) | |
| tree | c1ae6dd3db95d4a5a268b8e0fab0bcf8b019c36f /tools/perf/scripts/python | |
| parent | Merge tag 'fixes-for-v5.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/g... (diff) | |
| download | kernel-76e1ef1d81a4129d7e2fb8c48c83b166d1c8e040.tar.gz kernel-76e1ef1d81a4129d7e2fb8c48c83b166d1c8e040.zip | |
usb: core: hub: limit HUB_QUIRK_DISABLE_AUTOSUSPEND to USB5534B
On Tue, May 12, 2020 at 09:36:07PM +0800, Kai-Heng Feng wrote [1]:
> This patch prevents my Raven Ridge xHCI from getting runtime suspend.
The problem described in v5.6 commit 1208f9e1d758c9 ("USB: hub: Fix the
broken detection of USB3 device in SMSC hub") applies solely to the
USB5534B hub [2] present on the Kingfisher Infotainment Carrier Board,
manufactured by Shimafuji Electric Inc [3].
Despite that, the aforementioned commit applied the quirk to _all_ hubs
carrying vendor ID 0x424 (i.e. SMSC), of which there are more [4] than
initially expected. Consequently, the quirk is now enabled on platforms
carrying SMSC/Microchip hub models which potentially don't exhibit the
original issue.
To avoid reports like [1], further limit the quirk's scope to
USB5534B [2], by employing both Vendor and Product ID checks.
Tested on H3ULCB + Kingfisher rev. M05.
[1] https://lore.kernel.org/linux-renesas-soc/[email protected]/
[2] https://www.microchip.com/wwwproducts/en/USB5534B
[3] http://www.shimafuji.co.jp/wp/wp-content/uploads/2018/08/SBEV-RCAR-KF-M06Board_HWSpecificationEN_Rev130.pdf
[4] https://devicehunt.com/search/type/usb/vendor/0424/device/any
Fixes: 1208f9e1d758c9 ("USB: hub: Fix the broken detection of USB3 device in SMSC hub")
Cc: [email protected] # v4.14+
Cc: Alan Stern <[email protected]>
Cc: Hardik Gajjar <[email protected]>
Cc: [email protected]
Cc: [email protected]
Reported-by: Kai-Heng Feng <[email protected]>
Signed-off-by: Eugeniu Rosca <[email protected]>
Tested-by: Kai-Heng Feng <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions
