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- From 20684f46eb962173b57ba2d70f9f2e028c95c4c9 Mon Sep 17 00:00:00 2001
- From: Jonathan Bell <[email protected]>
- Date: Wed, 24 Jan 2024 16:28:19 +0000
- Subject: [PATCH 0853/1085] drivers: usb: dwc3: add FS/LS bus instance parkmode
- disable bit
- There are three parkmode disable bits, one for each bus instance type.
- Add FS/LS and parse the quirk out of DT. Also update the slightly
- mangled quirk descriptions.
- Signed-off-by: Jonathan Bell <[email protected]>
- ---
- drivers/usb/dwc3/core.c | 5 +++++
- drivers/usb/dwc3/core.h | 12 ++++++++----
- 2 files changed, 13 insertions(+), 4 deletions(-)
- --- a/drivers/usb/dwc3/core.c
- +++ b/drivers/usb/dwc3/core.c
- @@ -1372,6 +1372,9 @@ static int dwc3_core_init(struct dwc3 *d
- if (dwc->parkmode_disable_hs_quirk)
- reg |= DWC3_GUCTL1_PARKMODE_DISABLE_HS;
-
- + if (dwc->parkmode_disable_fsls_quirk)
- + reg |= DWC3_GUCTL1_PARKMODE_DISABLE_FSLS;
- +
- if (DWC3_VER_IS_WITHIN(DWC3, 290A, ANY) &&
- (dwc->maximum_speed == USB_SPEED_HIGH ||
- dwc->maximum_speed == USB_SPEED_FULL))
- @@ -1670,6 +1673,8 @@ static void dwc3_get_properties(struct d
- "snps,parkmode-disable-ss-quirk");
- dwc->parkmode_disable_hs_quirk = device_property_read_bool(dev,
- "snps,parkmode-disable-hs-quirk");
- + dwc->parkmode_disable_fsls_quirk = device_property_read_bool(dev,
- + "snps,parkmode-disable-fsls-quirk");
- dwc->gfladj_refclk_lpm_sel = device_property_read_bool(dev,
- "snps,gfladj-refclk-lpm-sel-quirk");
-
- --- a/drivers/usb/dwc3/core.h
- +++ b/drivers/usb/dwc3/core.h
- @@ -271,6 +271,7 @@
- #define DWC3_GUCTL1_DEV_L1_EXIT_BY_HW BIT(24)
- #define DWC3_GUCTL1_PARKMODE_DISABLE_SS BIT(17)
- #define DWC3_GUCTL1_PARKMODE_DISABLE_HS BIT(16)
- +#define DWC3_GUCTL1_PARKMODE_DISABLE_FSLS BIT(15)
- #define DWC3_GUCTL1_RESUME_OPMODE_HS_HOST BIT(10)
-
- /* Global Status Register */
- @@ -1121,10 +1122,12 @@ struct dwc3_scratchpad_array {
- * generation after resume from suspend.
- * @ulpi_ext_vbus_drv: Set to confiure the upli chip to drives CPEN pin
- * VBUS with an external supply.
- - * @parkmode_disable_ss_quirk: set if we need to disable all SuperSpeed
- - * instances in park mode.
- - * @parkmode_disable_hs_quirk: set if we need to disable all HishSpeed
- - * instances in park mode.
- + * @parkmode_disable_ss_quirk: If set, disable park mode feature for all
- + * Superspeed instances.
- + * @parkmode_disable_hs_quirk: If set, disable park mode feature for all
- + * Highspeed instances.
- + * @parkmode_disable_fsls_quirk: If set, disable park mode feature for all
- + * Full/Lowspeed instances.
- * @tx_de_emphasis_quirk: set if we enable Tx de-emphasis quirk
- * @tx_de_emphasis: Tx de-emphasis value
- * 0 - -6dB de-emphasis
- @@ -1351,6 +1354,7 @@ struct dwc3 {
- unsigned ulpi_ext_vbus_drv:1;
- unsigned parkmode_disable_ss_quirk:1;
- unsigned parkmode_disable_hs_quirk:1;
- + unsigned parkmode_disable_fsls_quirk:1;
- unsigned gfladj_refclk_lpm_sel:1;
-
- unsigned tx_de_emphasis_quirk:1;
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