5.16-stable patches

added patches:
	mfd-intel-lpss-pci-fix-clock-speed-for-38a8-uart.patch

diff --git a/queue-5.16/mfd-intel-lpss-pci-fix-clock-speed-for-38a8-uart.patch b/queue-5.16/mfd-intel-lpss-pci-fix-clock-speed-for-38a8-uart.patch
new file mode 100644 (file)
index 0000000..60f214a
--- /dev/null
+++ b/queue-5.16/mfd-intel-lpss-pci-fix-clock-speed-for-38a8-uart.patch
@@ -0,0 +1,44 @@
+From 9651cf2cb14726c785240e9dc01b274a68e9959e Mon Sep 17 00:00:00 2001
+From: Orlando Chamberlain <redecorating@protonmail.com>
+Date: Wed, 24 Nov 2021 09:19:44 +0000
+Subject: mfd: intel-lpss-pci: Fix clock speed for 38a8 UART
+
+From: Orlando Chamberlain <redecorating@protonmail.com>
+
+commit 9651cf2cb14726c785240e9dc01b274a68e9959e upstream.
+
+This device is found in the MacBookPro16,2, and as the MacBookPro16,1 is
+from the same generation of MacBooks and has a UART with bxt_uart_info,
+it was incorrectly assumed that the MacBookPro16,2's UART would have the
+same info.
+
+This led to the wrong clock speed being used, and the Bluetooth
+controller exposed by the UART receiving and sending random data, which
+was incorrectly assumed to be an issue with the Bluetooth stuff, not an
+error with the UART side of things.
+
+Changing the info to spt_uart_info changes the clock speed and makes it
+send and receive data correctly.
+
+Fixes: ddb1ada416fd ("mfd: intel-lpss: Add support for MacBookPro16,2 ICL-N UART")
+Signed-off-by: Orlando Chamberlain <redecorating@protonmail.com>
+Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+Signed-off-by: Lee Jones <lee.jones@linaro.org>
+Cc: Aditya Garg <gargaditya08@live.com>
+Link: https://lore.kernel.org/r/20211124091846.11114-1-redecorating@protonmail.com
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/mfd/intel-lpss-pci.c |    2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/mfd/intel-lpss-pci.c
++++ b/drivers/mfd/intel-lpss-pci.c
+@@ -254,7 +254,7 @@ static const struct pci_device_id intel_
+       { PCI_VDEVICE(INTEL, 0x34eb), (kernel_ulong_t)&bxt_i2c_info },
+       { PCI_VDEVICE(INTEL, 0x34fb), (kernel_ulong_t)&spt_info },
+       /* ICL-N */
+-      { PCI_VDEVICE(INTEL, 0x38a8), (kernel_ulong_t)&bxt_uart_info },
++      { PCI_VDEVICE(INTEL, 0x38a8), (kernel_ulong_t)&spt_uart_info },
+       /* TGL-H */
+       { PCI_VDEVICE(INTEL, 0x43a7), (kernel_ulong_t)&bxt_uart_info },
+       { PCI_VDEVICE(INTEL, 0x43a8), (kernel_ulong_t)&bxt_uart_info },

diff --git a/queue-5.16/series b/queue-5.16/series
index cca38756f0bbee49f7d39417133e4f0c9f9dc349..b478fbd4440523b60b862733fdcbbe6f0aec087e 100644 (file)
--- a/queue-5.16/series
+++ b/queue-5.16/series
@@ -23,4 +23,5 @@ bluetooth-btbcm-disable-read-tx-power-for-some-macs-with-the-t2-security-chip.pa
 bluetooth-btbcm-disable-read-tx-power-for-macbook-air-8-1-and-8-2.patch
 veth-do-not-record-rx-queue-hint-in-veth_xmit.patch
 mfd-intel-lpss-fix-too-early-pm-enablement-in-the-acpi-probe.patch
+mfd-intel-lpss-pci-fix-clock-speed-for-38a8-uart.patch
 x86-mce-remove-noinstr-annotation-from-mce_setup.patch