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authorOrlando Chamberlain <redecorating@protonmail.com>2021-11-24 09:19:44 +0000
committerLee Jones <lee.jones@linaro.org>2021-11-29 13:17:00 +0000
commit9651cf2cb14726c785240e9dc01b274a68e9959e (patch)
tree2cef44394507e25f30037aa4fc56c498e4b27423 /drivers/mfd
parentc9e143084d1a602f829115612e1ec79df3727c8b (diff)
mfd: intel-lpss-pci: Fix clock speed for 38a8 UART
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> Link: https://lore.kernel.org/r/20211124091846.11114-1-redecorating@protonmail.com
Diffstat (limited to 'drivers/mfd')
-rw-r--r--drivers/mfd/intel-lpss-pci.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mfd/intel-lpss-pci.c b/drivers/mfd/intel-lpss-pci.c
index 9700e5acd0cd..a59aa147959b 100644
--- 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_lpss_pci_ids[] = {
{ 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 },