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From: Maximilian Luz <luzmaximilian@gmail.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Maximilian Luz <luzmaximilian@gmail.com>,
	Jiri Slaby <jirislaby@kernel.org>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Len Brown <lenb@kernel.org>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-serial@vger.kernel.org, stable@vger.kernel.org,
	Sachi King <nakato@nakato.io>
Subject: [PATCH] serial: 8250_dw: Add device HID for new AMD UART controller
Date: Wed, 12 May 2021 23:04:13 +0200	[thread overview]
Message-ID: <20210512210413.1982933-1-luzmaximilian@gmail.com> (raw)

Add device HID AMDI0022 to the AMD UART controller driver match table
and create a platform device for it. This controller can be found on
Microsoft Surface Laptop 4 devices and seems similar enough that we can
just copy the existing AMDI0020 entries.

Cc: <stable@vger.kernel.org> # 5.10+
Tested-by: Sachi King <nakato@nakato.io>
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
---
 drivers/acpi/acpi_apd.c           | 1 +
 drivers/tty/serial/8250/8250_dw.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/acpi/acpi_apd.c b/drivers/acpi/acpi_apd.c
index 0ec5b3f69112..6e02448d15d9 100644
--- a/drivers/acpi/acpi_apd.c
+++ b/drivers/acpi/acpi_apd.c
@@ -226,6 +226,7 @@ static const struct acpi_device_id acpi_apd_device_ids[] = {
 	{ "AMDI0010", APD_ADDR(wt_i2c_desc) },
 	{ "AMD0020", APD_ADDR(cz_uart_desc) },
 	{ "AMDI0020", APD_ADDR(cz_uart_desc) },
+	{ "AMDI0022", APD_ADDR(cz_uart_desc) },
 	{ "AMD0030", },
 	{ "AMD0040", APD_ADDR(fch_misc_desc)},
 	{ "HYGO0010", APD_ADDR(wt_i2c_desc) },
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
index 9e204f9b799a..a3a0154da567 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -714,6 +714,7 @@ static const struct acpi_device_id dw8250_acpi_match[] = {
 	{ "APMC0D08", 0},
 	{ "AMD0020", 0 },
 	{ "AMDI0020", 0 },
+	{ "AMDI0022", 0 },
 	{ "BRCM2032", 0 },
 	{ "HISI0031", 0 },
 	{ },
-- 
2.31.1


             reply	other threads:[~2021-05-12 21:51 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-12 21:04 Maximilian Luz [this message]
2021-05-13  7:08 ` [PATCH] serial: 8250_dw: Add device HID for new AMD UART controller Andy Shevchenko
2021-05-17 15:01 ` Rafael J. Wysocki
2021-05-17 15:57   ` Greg Kroah-Hartman

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