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Date: Wed, 7 Dec 2022 10:40:13 -0700 From: Mark Hasemeyer <markhas@...omium.org> To: LKML <linux-kernel@...r.kernel.org> Cc: Raul Rangel <rrangel@...omium.org>, Bhanu Prakash Maiya <bhanumaiya@...omium.org>, Mark Hasemeyer <markhas@...omium.org>, Benson Leung <bleung@...omium.org>, Guenter Roeck <groeck@...omium.org>, Tzung-Bi Shih <tzungbi@...nel.org>, chrome-platform@...ts.linux.dev Subject: [PATCH v10 3/3] platform/chrome: cros_ec_uart: Add DT enumeration support From: Bhanu Prakash Maiya <bhanumaiya@...omium.org> Existing firmware uses the "PRP0001" _HID and an associated compatible string to enumerate the cros_ec_uart. Add DT enumeration support for already shipped firmware. Signed-off-by: Bhanu Prakash Maiya <bhanumaiya@...omium.org> Co-developed-by: Mark Hasemeyer <markhas@...omium.org> Signed-off-by: Mark Hasemeyer <markhas@...omium.org> --- Changes in v10: - No change Changes in v9: - Rebase onto for-next - Update authorship Changes in v8: - No change Changes in v7: - Move PRP0001 enumeration support to its own commit drivers/platform/chrome/cros_ec_uart.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/platform/chrome/cros_ec_uart.c b/drivers/platform/chrome/cros_ec_uart.c index 873aee4172bfd..70e337717508a 100644 --- a/drivers/platform/chrome/cros_ec_uart.c +++ b/drivers/platform/chrome/cros_ec_uart.c @@ -11,6 +11,7 @@ #include <linux/init.h> #include <linux/kernel.h> #include <linux/module.h> +#include <linux/of.h> #include <linux/platform_data/cros_ec_proto.h> #include <linux/serdev.h> #include <linux/slab.h> @@ -332,6 +333,12 @@ static int __maybe_unused cros_ec_uart_resume(struct device *dev) static SIMPLE_DEV_PM_OPS(cros_ec_uart_pm_ops, cros_ec_uart_suspend, cros_ec_uart_resume); +static const struct of_device_id cros_ec_uart_of_match[] = { + { .compatible = "google,cros-ec-uart" }, + {} +}; +MODULE_DEVICE_TABLE(of, cros_ec_uart_of_match); + #ifdef CONFIG_ACPI static const struct acpi_device_id cros_ec_uart_acpi_id[] = { { "GOOG0019", 0 } @@ -344,6 +351,7 @@ static struct serdev_device_driver cros_ec_uart_driver = { .driver = { .name = "cros-ec-uart", .acpi_match_table = ACPI_PTR(cros_ec_uart_acpi_id), + .of_match_table = cros_ec_uart_of_match, .pm = &cros_ec_uart_pm_ops, }, .probe = cros_ec_uart_probe, -- 2.39.0.rc1.256.g54fd8350bd-goog
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