Re: [PATCH AUTOSEL 5.16 06/34] usb: usb251xb: add boost-up property support

On Tue, Feb 15, 2022 at 10:26:29AM -0500, Sasha Levin wrote:

From: Tommaso Merciai tomm.merciai@gmail.com

[ Upstream commit 5c2b9c61ae5d8ad0a196d33b66ce44543be22281 ]

Add support for boost-up register of usb251xb hub. boost-up property control USB electrical drive strength This register can be set:

• Normal mode -> 0x00
• Low -> 0x01
• Medium -> 0x10
• High -> 0x11

(Normal Default)

References:

• http://www.mouser.com/catalog/specsheets/2514.pdf p29

Reviewed-by: Richard Leitner richard.leitner@linux.dev Signed-off-by: Tommaso Merciai tomm.merciai@gmail.com Link: https://lore.kernel.org/r/20220128181713.96856-1-tomm.merciai@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org

---

drivers/usb/misc/usb251xb.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)

This isn't needed in any stable tree, please drop it from all AUTOSEL branches.

thanks,

greg k-h