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From: Jianqun Xu <jay.xu@rock-chips.com>
To: linus.walleij@linaro.org, heiko@sntech.de, brgl@bgdev.pl,
	andriy.shevchenko@linux.intel.com
Cc: robert.moore@intel.com, robh@kernel.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org,
	lenb@kernel.org, rafael@kernel.org,
	Hans de Goede <hdegoede@redhat.com>
Subject: [PATCH 01/20] ACPI: utils: Add acpi_dev_uid_to_integer() helper to get _UID as integer
Date: Tue, 20 Sep 2022 18:30:49 +0800	[thread overview]
Message-ID: <20220920103108.23074-2-jay.xu@rock-chips.com> (raw)
In-Reply-To: <20220920103108.23074-1-jay.xu@rock-chips.com>

From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

Some users interpret _UID only as integer and for them it's easier to
have an integer representation of _UID. Add respective helper for that.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
---
 drivers/acpi/utils.c    | 24 ++++++++++++++++++++++++
 include/acpi/acpi_bus.h |  1 +
 include/linux/acpi.h    |  5 +++++
 3 files changed, 30 insertions(+)

diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c
index 5a7b8065e77f..febf9b8da3a0 100644
--- a/drivers/acpi/utils.c
+++ b/drivers/acpi/utils.c
@@ -793,6 +793,30 @@ bool acpi_dev_hid_uid_match(struct acpi_device *adev,
 }
 EXPORT_SYMBOL(acpi_dev_hid_uid_match);
 
+/**
+ * acpi_dev_uid_to_integer - treat ACPI device _UID as integer
+ * @adev: ACPI device to get _UID from
+ * @integer: output buffer for integer
+ *
+ * Considers _UID as integer and converts it to @integer.
+ *
+ * Returns 0 on success, or negative error code otherwise.
+ */
+int acpi_dev_uid_to_integer(struct acpi_device *adev, u64 *integer)
+{
+	const char *uid;
+
+	if (!adev)
+		return -ENODEV;
+
+	uid = acpi_device_uid(adev);
+	if (!uid)
+		return -ENODATA;
+
+	return kstrtou64(uid, 0, integer);
+}
+EXPORT_SYMBOL(acpi_dev_uid_to_integer);
+
 /**
  * acpi_dev_found - Detect presence of a given ACPI device in the namespace.
  * @hid: Hardware ID of the device.
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index e7d27373ff71..bd0db916f330 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -733,6 +733,7 @@ static inline bool acpi_device_can_poweroff(struct acpi_device *adev)
 }
 
 bool acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2);
+int acpi_dev_uid_to_integer(struct acpi_device *adev, u64 *integer);
 
 void acpi_dev_clear_dependencies(struct acpi_device *supplier);
 bool acpi_dev_ready_for_enumeration(const struct acpi_device *device);
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 6f64b2f3dc54..9434db02cb60 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -798,6 +798,11 @@ acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *u
 	return false;
 }
 
+static inline int acpi_dev_uid_to_integer(struct acpi_device *adev, u64 *integer)
+{
+	return -ENODEV;
+}
+
 static inline struct acpi_device *
 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv)
 {
-- 
2.25.1


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  reply	other threads:[~2022-09-20 10:31 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-20 10:30 [PATCH 00/20] Rockchip pinctrl/GPIO support ACPI Jianqun Xu
2022-09-20 10:30 ` Jianqun Xu [this message]
2022-09-20 10:30 ` [PATCH 02/20] pinctrl/rockchip: populate GPIO platform early Jianqun Xu
2022-09-20 10:30 ` [PATCH 03/20] pinctrl/rockchip: use fwnode instead of of_node Jianqun Xu
2022-09-20 10:30 ` [PATCH 04/20] pinctrl/rockchip: switch to use device_get_match_data Jianqun Xu
2022-10-04  7:13   ` Linus Walleij
2022-09-20 10:30 ` [PATCH 05/20] pinctrl/rockchip: of_populate_platform for gpio only for of node Jianqun Xu
2022-09-20 10:30 ` [PATCH 06/20] pinctrl/rockchip: parse dt only if the fwnode is " Jianqun Xu
2022-09-20 10:30 ` [PATCH 07/20] pinctrl/rockchip: print a message if driver probed successfully Jianqun Xu
2022-09-20 10:30 ` [PATCH 08/20] gpiolib: make gpiochip_find_by_name to be common function Jianqun Xu
2022-09-20 10:30 ` [PATCH 09/20] gpio/rockchip: drop 'bank->name' from the driver Jianqun Xu
2022-09-20 10:30 ` [PATCH 10/20] gpio/rockchip: revert deferred output settings on probe Jianqun Xu
2022-09-20 10:30 ` [PATCH 11/20] gpio/rockchip: add of_node for gpiochip Jianqun Xu
2022-10-04  7:14   ` Linus Walleij
2022-10-04  8:30     ` Andy Shevchenko
2022-10-04  9:06       ` Linus Walleij
2022-10-08  6:19         ` jay.xu
2022-10-08 18:21           ` Andy Shevchenko
2022-09-20 10:31 ` [PATCH 12/20] gpio/rockchip: add return check for clock rate set Jianqun Xu
2022-09-30  9:17   ` Bartosz Golaszewski
2022-09-30  9:28     ` Bartosz Golaszewski
2022-09-20 10:31 ` [PATCH 13/20] gpio/rockchip: disable and put clocks when remove Jianqun Xu
2022-09-30  9:23   ` Bartosz Golaszewski
2022-09-20 10:31 ` [PATCH 14/20] gpio/rockchip: switch to use irq_domain_create_linear Jianqun Xu
2022-09-20 10:31 ` [PATCH 15/20] gpio/rockchip: disable and put clocks when gpiolib register failed Jianqun Xu
2022-10-04  7:16   ` Linus Walleij
2022-10-04  7:16     ` Linus Walleij
2022-09-20 10:31 ` [PATCH 16/20] gpio/rockchip: try to get gpio id from uid when ACPI enabled Jianqun Xu
2022-09-20 10:31 ` [PATCH 17/20] gpio/rockchip: print device with fwnode name when probe successful Jianqun Xu
2022-09-30  9:21   ` Bartosz Golaszewski
2022-09-20 10:31 ` [PATCH 18/20] gpio/rockchip: make use of device property Jianqun Xu
2022-09-20 10:31 ` [PATCH 19/20] gpio/rockchip: make GPIO module work well under ACPI enabled Jianqun Xu
2022-09-20 10:31 ` [PATCH 20/20] pinctrl/rockchip: find existed gpiochip by gpio label Jianqun Xu

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