diff options
| author | Piyush Mehta <piyush.mehta@xilinx.com> | 2022-08-22 11:10:51 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-08-31 09:07:52 +0200 |
| commit | 66d1c8021e1d9c97101d58fa09c33c002d96747a (patch) | |
| tree | b581ba435464344857cd2ff852d58c676edd5bc2 /drivers/usb/chipidea/otg_fsm.c | |
| parent | 6b91a8e3412a13a8cb1ec610c702db96301c0da0 (diff) | |
usb: chipidea: Add support for VBUS control with PHY
Some platforms make use of VBUS control over PHY which means controller
driver has to access PHY registers to turn on/off VBUS line.This patch
adds support for such platforms in chipidea.
Flag 'CI_HDRC_PHY_VBUS_CONTROL' added to support VBus control feature.
Acked-by: Peter Chen <peter.chen@kernel.org>
Signed-off-by: Piyush Mehta <piyush.mehta@xilinx.com>
Signed-off-by: Piyush Mehta <piyush.mehta@amd.com>
Link: https://lore.kernel.org/r/20220822054051.2941282-1-piyush.mehta@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/chipidea/otg_fsm.c')
| -rw-r--r-- | drivers/usb/chipidea/otg_fsm.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/usb/chipidea/otg_fsm.c b/drivers/usb/chipidea/otg_fsm.c index 61b157b9c662..ada78daba6df 100644 --- a/drivers/usb/chipidea/otg_fsm.c +++ b/drivers/usb/chipidea/otg_fsm.c @@ -471,6 +471,10 @@ static void ci_otg_drv_vbus(struct otg_fsm *fsm, int on) return; } } + + if (ci->platdata->flags & CI_HDRC_PHY_VBUS_CONTROL) + usb_phy_vbus_on(ci->usb_phy); + /* Disable data pulse irq */ hw_write_otgsc(ci, OTGSC_DPIE, 0); @@ -480,6 +484,9 @@ static void ci_otg_drv_vbus(struct otg_fsm *fsm, int on) if (ci->platdata->reg_vbus) regulator_disable(ci->platdata->reg_vbus); + if (ci->platdata->flags & CI_HDRC_PHY_VBUS_CONTROL) + usb_phy_vbus_off(ci->usb_phy); + fsm->a_bus_drop = 1; fsm->a_bus_req = 0; } |