6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Hans de Goede hdegoede@redhat.com
[ Upstream commit 0fb782b5d5c462b2518b3b4fe7d652114c28d613 ]
The Lenovo Yoga Tablet 2 Pro 1380 model is the exception to the rule that devices which use the Crystal Cove PMIC without using ACPI for battery and AC power_supply class support use the USB-phy for charger detection.
Unlike the Lenovo Yoga Tablet 2 830 / 1050 models this model has an extra LC824206XA Micro USB switch which does the charger detection.
Add a DMI quirk to not set the "linux,phy_charger_detect" property on the 1380 model. This quirk matches on the BIOS version to differentiate the 1380 model from the 830 and 1050 models which otherwise have the same DMI strings.
Signed-off-by: Hans de Goede hdegoede@redhat.com Acked-by: Thinh Nguyen Thinh.Nguyen@synopsys.com Link: https://lore.kernel.org/r/20240406140127.17885-1-hdegoede@redhat.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/usb/dwc3/dwc3-pci.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c index 497deed38c0c1..9ef821ca2fc71 100644 --- a/drivers/usb/dwc3/dwc3-pci.c +++ b/drivers/usb/dwc3/dwc3-pci.c @@ -8,6 +8,7 @@ * Sebastian Andrzej Siewior bigeasy@linutronix.de */
+#include <linux/dmi.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/slab.h> @@ -220,6 +221,7 @@ static int dwc3_pci_quirks(struct dwc3_pci *dwc,
if (pdev->device == PCI_DEVICE_ID_INTEL_BYT) { struct gpio_desc *gpio; + const char *bios_ver; int ret;
/* On BYT the FW does not always enable the refclock */ @@ -277,8 +279,12 @@ static int dwc3_pci_quirks(struct dwc3_pci *dwc, * detection. These can be identified by them _not_ * using the standard ACPI battery and ac drivers. */ + bios_ver = dmi_get_system_info(DMI_BIOS_VERSION); if (acpi_dev_present("INT33FD", "1", 2) && - acpi_quirk_skip_acpi_ac_and_battery()) { + acpi_quirk_skip_acpi_ac_and_battery() && + /* Lenovo Yoga Tablet 2 Pro 1380 uses LC824206XA instead */ + !(bios_ver && + strstarts(bios_ver, "BLADE_21.X64.0005.R00.1504101516"))) { dev_info(&pdev->dev, "Using TUSB1211 phy for charger detection\n"); swnode = &dwc3_pci_intel_phy_charger_detect_swnode; }