diff options
| author | Amelie Delaunay <amelie.delaunay@foss.st.com> | 2021-01-05 10:48:54 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-01-12 12:54:42 +0100 |
| commit | f228cb27c56163dcb55dfb62e176a08f45020faf (patch) | |
| tree | a03116cba14b527cc8bd81be4818aa276ff5b35f | |
| parent | 2979ee7a91127a2d6fddd4e98d450ee782115772 (diff) | |
usb: dwc2: enable FS/LS PHY clock select on STM32MP15 FS OTG
When the core is in FS host mode, using the FS transceiver, and a Low-Speed
device is connected, transceiver clock is 6Mhz.
So, to support Low-Speed devices, enable support of FS/LS Low Power mode,
so that the PHY supplies a 6 MHz clock during Low-Speed mode.
Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
Link: https://lore.kernel.org/r/20210105094855.30763-3-amelie.delaunay@foss.st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/dwc2/params.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c index 0df693319f0a..9e5dd7f3f2f6 100644 --- a/drivers/usb/dwc2/params.c +++ b/drivers/usb/dwc2/params.c @@ -179,6 +179,8 @@ static void dwc2_set_stm32mp15_fsotg_params(struct dwc2_hsotg *hsotg) p->activate_stm_id_vb_detection = true; p->ahbcfg = GAHBCFG_HBSTLEN_INCR16 << GAHBCFG_HBSTLEN_SHIFT; p->power_down = DWC2_POWER_DOWN_PARAM_NONE; + p->host_support_fs_ls_low_power = true; + p->host_ls_low_power_phy_clk = true; } static void dwc2_set_stm32mp15_hsotg_params(struct dwc2_hsotg *hsotg) |