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Redecorating
44 lines
1.8 KiB
Diff
44 lines
1.8 KiB
Diff
From 64dad24333ddb290f4e2f6c489abe03247030320 Mon Sep 17 00:00:00 2001
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From: Orlando Chamberlain <redecorating@protonmail.com>
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Date: Wed, 24 Nov 2021 09:19:44 +0000
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Subject: [PATCHv2] mfd: intel-lpss-pci: fix clock speed for 38a8 UART
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This device is found in the MacBookPro16,2, and as the MacBookPro16,1 is
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from the same generation of MacBooks and has a UART with bxt_uart_info,
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it was incorrectly assumed that the MacBookPro16,2's UART would have the
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same info.
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This led to the wrong clock speed being used, and the Bluetooth
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controller exposed by the UART receiving and sending random data, which
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was incorrectly assumed to be an issue with the Bluetooth stuff, not an
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error with the UART side of things.
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Changing the info to spt_uart_info changes the clock speed and makes it
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send and receive data correctly.
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Fixes: ddb1ada416fd ("mfd: intel-lpss: Add support for MacBookPro16,2 ICL-N UART")
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Signed-off-by: Orlando Chamberlain <redecorating@protonmail.com>
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Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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---
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v1 -> v2: Remove blank line in tag block, add Reviewed-by.
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drivers/mfd/intel-lpss-pci.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/drivers/mfd/intel-lpss-pci.c b/drivers/mfd/intel-lpss-pci.c
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index a872b4485eac..f70464ce8e3d 100644
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--- a/drivers/mfd/intel-lpss-pci.c
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+++ b/drivers/mfd/intel-lpss-pci.c
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@@ -254,7 +254,7 @@ static const struct pci_device_id intel_lpss_pci_ids[] = {
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{ PCI_VDEVICE(INTEL, 0x34eb), (kernel_ulong_t)&bxt_i2c_info },
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{ PCI_VDEVICE(INTEL, 0x34fb), (kernel_ulong_t)&spt_info },
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/* ICL-N */
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- { PCI_VDEVICE(INTEL, 0x38a8), (kernel_ulong_t)&bxt_uart_info },
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+ { PCI_VDEVICE(INTEL, 0x38a8), (kernel_ulong_t)&spt_uart_info },
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/* TGL-H */
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{ PCI_VDEVICE(INTEL, 0x43a7), (kernel_ulong_t)&bxt_uart_info },
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{ PCI_VDEVICE(INTEL, 0x43a8), (kernel_ulong_t)&bxt_uart_info },
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--
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2.34.0
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