diff options
| author | Minas Harutyunyan <Minas.Harutyunyan@synopsys.com> | 2024-03-13 12:20:03 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-03-26 12:44:53 +0300 |
| commit | 4483ef3c1685290251f7caf18377f793e0901460 (patch) | |
| tree | 37c1534da6bba7bd90ff1d6d6cdb3d2510c28c0d /drivers/usb/dwc2/core_intr.c | |
| parent | 535a88dc7d61b740bba4fdbe2b0b5a517d8d1820 (diff) | |
| download | linux-4483ef3c1685290251f7caf18377f793e0901460.tar.xz | |
usb: dwc2: Add hibernation updates for ULPI PHY
Added programmming of ULPI_LATCH_EN_DURING_HIB_ENTRY bit in GPWRDN
register when using ULPI PHY during entry/exit to/from hibernation.
This bit set to 1 during entering to hibernation if ULPI PHY used.
On exiting from hibernation this bit reset to 0.
Applicable for both host and device modes.
Signed-off-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Link: https://lore.kernel.org/r/e024cb39a7177ec201c873df25ca6365f2e55947.1708948356.git.Minas.Harutyunyan@synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/dwc2/core_intr.c')
| -rw-r--r-- | drivers/usb/dwc2/core_intr.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/usb/dwc2/core_intr.c b/drivers/usb/dwc2/core_intr.c index bb6bb771375a..aee779898c06 100644 --- a/drivers/usb/dwc2/core_intr.c +++ b/drivers/usb/dwc2/core_intr.c @@ -705,6 +705,11 @@ static inline void dwc_handle_gpwrdn_disc_det(struct dwc2_hsotg *hsotg, gpwrdn_tmp &= ~GPWRDN_PMUINTSEL; dwc2_writel(hsotg, gpwrdn_tmp, GPWRDN); + /* Reset ULPI latch */ + gpwrdn = dwc2_readl(hsotg, GPWRDN); + gpwrdn &= ~GPWRDN_ULPI_LATCH_EN_DURING_HIB_ENTRY; + dwc2_writel(hsotg, gpwrdn, GPWRDN); + /* De-assert Wakeup Logic */ gpwrdn_tmp = dwc2_readl(hsotg, GPWRDN); gpwrdn_tmp &= ~GPWRDN_PMUACTV; |