105 lines
3.1 KiB
Diff
105 lines
3.1 KiB
Diff
From 8181870b30687aa9351d919d082bc2b671a9c4cb Mon Sep 17 00:00:00 2001
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From: Andrey Smirnov <andrew.smirnov@gmail.com>
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Date: Sat, 15 Jul 2023 12:58:54 -0700
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Subject: [PATCH 3/6] hwmon: steamdeck-hwmon: Add support for max battery
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level/rate
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Add support for max battery level/charge rate attributes.
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Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
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(cherry picked from commit 50af83e8fd75dc52221edd3fb6fd7a7f70c4d8a4)
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Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
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Signed-off-by: Alexandre Frade <kernel@xanmod.org>
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---
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drivers/hwmon/steamdeck-hwmon.c | 72 ++++++++++++++++++++++++++++++++-
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1 file changed, 71 insertions(+), 1 deletion(-)
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--- a/drivers/hwmon/steamdeck-hwmon.c
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+++ b/drivers/hwmon/steamdeck-hwmon.c
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@@ -180,6 +180,76 @@ static const struct hwmon_chip_info stea
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.info = steamdeck_hwmon_info,
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};
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+
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+static ssize_t
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+steamdeck_hwmon_simple_store(struct device *dev, const char *buf, size_t count,
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+ const char *method,
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+ unsigned long upper_limit)
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+{
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+ struct steamdeck_hwmon *sd = dev_get_drvdata(dev);
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+ unsigned long value;
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+
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+ if (kstrtoul(buf, 10, &value) || value >= upper_limit)
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+ return -EINVAL;
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+
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+ if (ACPI_FAILURE(acpi_execute_simple_method(sd->adev->handle,
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+ (char *)method, value)))
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+ return -EIO;
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+
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+ return count;
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+}
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+
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+static ssize_t
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+steamdeck_hwmon_simple_show(struct device *dev, char *buf,
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+ const char *method)
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+{
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+ struct steamdeck_hwmon *sd = dev_get_drvdata(dev);
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+ unsigned long value;
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+
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+ value = steamdeck_hwmon_get(sd, method);
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+ if (value < 0)
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+ return value;
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+
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+ return sprintf(buf, "%ld\n", value);
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+}
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+
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+#define STEAMDECK_HWMON_ATTR_RW(_name, _set_method, _get_method, \
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+ _upper_limit) \
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+ static ssize_t _name##_show(struct device *dev, \
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+ struct device_attribute *attr, \
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+ char *buf) \
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+ { \
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+ return steamdeck_hwmon_simple_show(dev, buf, \
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+ _get_method); \
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+ } \
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+ static ssize_t _name##_store(struct device *dev, \
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+ struct device_attribute *attr, \
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+ const char *buf, size_t count) \
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+ { \
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+ return steamdeck_hwmon_simple_store(dev, buf, count, \
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+ _set_method, \
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+ _upper_limit); \
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+ } \
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+ static DEVICE_ATTR_RW(_name)
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+
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+STEAMDECK_HWMON_ATTR_RW(max_battery_charge_level, "FCBL", "SFBL", 101);
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+STEAMDECK_HWMON_ATTR_RW(max_battery_charge_rate, "CHGR", "GCHR", 101);
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+
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+static struct attribute *steamdeck_hwmon_attributes[] = {
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+ &dev_attr_max_battery_charge_level.attr,
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+ &dev_attr_max_battery_charge_rate.attr,
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+ NULL
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+};
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+
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+static const struct attribute_group steamdeck_hwmon_group = {
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+ .attrs = steamdeck_hwmon_attributes,
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+};
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+
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+static const struct attribute_group *steamdeck_hwmon_groups[] = {
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+ &steamdeck_hwmon_group,
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+ NULL
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+};
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+
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static int steamdeck_hwmon_probe(struct platform_device *pdev)
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{
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struct device *dev = &pdev->dev;
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@@ -195,7 +265,7 @@ static int steamdeck_hwmon_probe(struct
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"steamdeck_hwmon",
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sd,
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&steamdeck_hwmon_chip_info,
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- NULL);
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+ steamdeck_hwmon_groups);
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if (IS_ERR(hwmon)) {
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dev_err(dev, "Failed to register HWMON device");
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return PTR_ERR(hwmon);
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