openwrt/target/linux/bcm27xx/patches-6.6/950-0853-drivers-usb-dwc3-add-FS-LS-bus-instance-parkmode-dis.patch

From 20684f46eb962173b57ba2d70f9f2e028c95c4c9 Mon Sep 17 00:00:00 2001
From: Jonathan Bell <jonathan@raspberrypi.com>
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 <jonathan@raspberrypi.com>
---
 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
@@ -1351,6 +1351,9 @@ 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))
@@ -1649,6 +1652,8 @@ 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 */
@@ -1115,10 +1116,12 @@ 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
@@ -1342,6 +1345,7 @@ 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;