Commit f9bce00f authored by Bhanu Prakash Maiya's avatar Bhanu Prakash Maiya Committed by Tzung-Bi Shih
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platform/chrome: cros_ec_uart: Add DT enumeration support 



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: default avatarBhanu Prakash Maiya <bhanumaiya@chromium.org>
Co-developed-by: default avatarMark Hasemeyer <markhas@chromium.org>
Signed-off-by: default avatarMark Hasemeyer <markhas@chromium.org>
Reviewed-by: default avatarPrashant Malani <pmalani@chromium.org>
Signed-off-by: default avatarTzung-Bi Shih <tzungbi@kernel.org>
Link: https://lore.kernel.org/r/20221227123212.v13.3.Ie23c217d69ff25d7354db942613f143bbc8ef891@changeid
parent 04a8bdd1

drivers/platform/chrome/cros_ec_uart.c

+8 −0
Original line number Diff line number Diff line
@@ -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>
@@ -326,6 +327,12 @@ 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 },
@@ -339,6 +346,7 @@ 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,