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| author | Justin Chen <justin.chen@broadcom.com> | 2023-06-15 23:06:16 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2023-06-21 15:13:27 +0300 |
| commit | 5095d045a96235687199015ca94a03c00d68234f (patch) | |
| tree | ab10e67707dc28b7655bd731ac180fe98e2051a8 /drivers/phy/broadcom/phy-brcm-usb-init.c | |
| parent | c0c2fcb1325d0d4f3b322b5ee49385f8eca2560d (diff) | |
| download | linux-5095d045a96235687199015ca94a03c00d68234f.tar.xz | |
phy: usb: Turn off phy when port is in suspend
The COMMONONN bit turns off the PHY when the host controller puts it
into suspend state. This can happen during the following...
- Nothing is connected to the port
- The host controller goes into low power mode whatever due to auto
suspend or system suspend.
With COMMONONN we also must unset U2_FREECLK_EXISTS since the UTMI
clock is fed by the PHY.
With these changes we see a power savings of ~12mW when port is in
suspend.
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Justin Chen <justin.chen@broadcom.com>
Link: https://lore.kernel.org/r/1686859578-45242-2-git-send-email-justin.chen@broadcom.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/phy/broadcom/phy-brcm-usb-init.c')
0 files changed, 0 insertions, 0 deletions