From: Mark Hasemeyer <markhas@chromium.org>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Raul Rangel <rrangel@chromium.org>,
Mark Hasemeyer <markhas@chromium.org>,
Bhanu Prakash Maiya <bhanumaiya@chromium.org>,
Benson Leung <bleung@chromium.org>,
Enric Balletbo i Serra <enric.balletbo@collabora.com>,
Guenter Roeck <groeck@chromium.org>,
chrome-platform@lists.linux.dev
Subject: [PATCH v7 3/3] platform/chrome: cros_ec_uart: Add DT enumeration support
Date: Thu, 17 Nov 2022 11:48:48 -0700 [thread overview]
Message-ID: <20221117114818.v7.3.Ie23c217d69ff25d7354db942613f143bbc8ef891@changeid> (raw)
In-Reply-To: <20221117114818.v7.1.If7926fcbad397bc6990dd725690229bed403948c@changeid>
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@chromium.org>
Signed-off-by: Mark Hasemeyer <markhas@chromium.org>
---
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 b5f72f0104985..d44efb78bc881 100644
--- a/drivers/platform/chrome/cros_ec_uart.c
+++ b/drivers/platform/chrome/cros_ec_uart.c
@@ -11,6 +11,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/acpi.h>
+#include <linux/of.h>
#include <linux/platform_data/cros_ec_commands.h>
#include <linux/platform_data/cros_ec_proto.h>
#include <linux/serdev.h>
@@ -392,6 +393,12 @@ 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 },
@@ -405,6 +412,7 @@ 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,
--
2.38.1.584.g0f3c55d4c2-goog
next prev parent reply other threads:[~2022-11-17 18:49 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-17 18:48 [PATCH v7 1/3] platform/chrome: cros_ec_uart: Add cros-ec-uart transport layer Mark Hasemeyer
2022-11-17 18:48 ` [PATCH v7 2/3] dt-bindings: mfd: Add DT compatible string "google,cros_ec_uart" Mark Hasemeyer
2022-11-18 5:44 ` Tzung-Bi Shih
2022-11-18 8:59 ` Lee Jones
2022-11-18 9:19 ` Tzung-Bi Shih
2022-11-18 12:47 ` Krzysztof Kozlowski
2022-11-18 12:42 ` Guenter Roeck
2022-11-18 14:28 ` Lee Jones
2022-11-18 12:49 ` Krzysztof Kozlowski
2022-11-17 18:48 ` Mark Hasemeyer [this message]
2022-11-18 5:44 ` [PATCH v7 3/3] platform/chrome: cros_ec_uart: Add DT enumeration support Tzung-Bi Shih
2022-11-29 18:13 ` Mark Hasemeyer
2022-11-30 7:09 ` Tzung-Bi Shih
2022-11-30 16:52 ` Raul Rangel
2022-12-01 3:07 ` Tzung-Bi Shih
2022-11-18 5:43 ` [PATCH v7 1/3] platform/chrome: cros_ec_uart: Add cros-ec-uart transport layer Tzung-Bi Shih
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