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| /openbmc/linux/drivers/phy/broadcom/ |
| H A D | phy-brcm-usb-init-synopsys.c | diff 96173874d6b8a346c0c1b2aa098ccc78f4b7d435 Thu Oct 24 16:35:40 CDT 2024 Justin Chen <justin.chen@broadcom.com> phy: usb: Toggle the PHY power during init
commit 0a92ea87bdd6f77ca4e17fe19649882cf5209edd upstream.
When bringing up the PHY, it might be in a bad state if left powered.
One case is we lose the PLL lock if the PLL is gated while the PHY
is powered. Toggle the PHY power so we can start from a known state.
Fixes: 4e5b9c9a73b3 ("phy: usb: Add support for new Synopsys USB controller on the 7216")
Signed-off-by: Justin Chen <justin.chen@broadcom.com>
Acked-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://lore.kernel.org/r/20241024213540.1059412-1-justin.chen@broadcom.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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