From 20684f46eb962173b57ba2d70f9f2e028c95c4c9 Mon Sep 17 00:00:00 2001 From: Jonathan Bell 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 --- 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 */ @@ -1116,10 +1117,12 @@ 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 @@ -1344,6 +1347,7 @@ 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;