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Subject[PATCH 1/2] Input: axp20x-pek: add support for AXP221 PEK
Date
The AXP221 has different values for startup time bits from the AXP20X.

This patch introduces a different platform_device_id to the driver and
adds the necessary code to handle the different platform_device_ids.

Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
---
drivers/input/misc/axp20x-pek.c | 62 ++++++++++++++++++++++++++++++++++-------
1 file changed, 52 insertions(+), 10 deletions(-)

diff --git a/drivers/input/misc/axp20x-pek.c b/drivers/input/misc/axp20x-pek.c
index 38c79ebff033..3efa1de51569 100644
--- a/drivers/input/misc/axp20x-pek.c
+++ b/drivers/input/misc/axp20x-pek.c
@@ -32,6 +32,7 @@
struct axp20x_pek {
struct axp20x_dev *axp20x;
struct input_dev *input;
+ struct attribute_group *attribute_group;
int irq_dbr;
int irq_dbf;
};
@@ -41,14 +42,21 @@ struct axp20x_time {
unsigned int idx;
};

-static const struct axp20x_time startup_time[] = {
+static const struct axp20x_time axp20x_startup_time[] = {
{ .time = 128, .idx = 0 },
{ .time = 1000, .idx = 2 },
{ .time = 3000, .idx = 1 },
{ .time = 2000, .idx = 3 },
};

-static const struct axp20x_time shutdown_time[] = {
+static const struct axp20x_time axp221_startup_time[] = {
+ { .time = 128, .idx = 0 },
+ { .time = 1000, .idx = 1 },
+ { .time = 2000, .idx = 2 },
+ { .time = 3000, .idx = 3 },
+};
+
+static const struct axp20x_time axp20x_shutdown_time[] = {
{ .time = 4000, .idx = 0 },
{ .time = 6000, .idx = 1 },
{ .time = 8000, .idx = 2 },
@@ -61,15 +69,20 @@ struct axp20x_pek_ext_attr {
};

static struct axp20x_pek_ext_attr axp20x_pek_startup_ext_attr = {
- .p_time = startup_time,
+ .p_time = axp20x_startup_time,
.mask = AXP20X_PEK_STARTUP_MASK,
};

static struct axp20x_pek_ext_attr axp20x_pek_shutdown_ext_attr = {
- .p_time = shutdown_time,
+ .p_time = axp20x_shutdown_time,
.mask = AXP20X_PEK_SHUTDOWN_MASK,
};

+static struct axp20x_pek_ext_attr axp221_pek_startup_ext_attr = {
+ .p_time = axp221_startup_time,
+ .mask = AXP20X_PEK_STARTUP_MASK,
+};
+
static struct axp20x_pek_ext_attr *get_axp_ext_attr(struct device_attribute *attr)
{
return container_of(attr, struct dev_ext_attribute, attr)->var;
@@ -148,6 +161,11 @@ static struct dev_ext_attribute axp20x_dev_attr_startup = {
.var = &axp20x_pek_startup_ext_attr,
};

+static struct dev_ext_attribute axp221_dev_attr_startup = {
+ .attr = __ATTR(startup, 0644, axp20x_show_ext_attr, axp20x_store_ext_attr),
+ .var = &axp221_pek_startup_ext_attr,
+};
+
static struct dev_ext_attribute axp20x_dev_attr_shutdown = {
.attr = __ATTR(shutdown, 0644, axp20x_show_ext_attr, axp20x_store_ext_attr),
.var = &axp20x_pek_shutdown_ext_attr,
@@ -159,10 +177,20 @@ static struct attribute *axp20x_attributes[] = {
NULL,
};

+static struct attribute *axp221_attributes[] = {
+ &axp221_dev_attr_startup.attr.attr,
+ &axp20x_dev_attr_shutdown.attr.attr,
+ NULL,
+};
+
static const struct attribute_group axp20x_attribute_group = {
.attrs = axp20x_attributes,
};

+static const struct attribute_group axp221_attribute_group = {
+ .attrs = axp221_attributes,
+};
+
static irqreturn_t axp20x_pek_irq(int irq, void *pwr)
{
struct input_dev *idev = pwr;
@@ -184,9 +212,10 @@ static irqreturn_t axp20x_pek_irq(int irq, void *pwr)

static void axp20x_remove_sysfs_group(void *_data)
{
- struct device *dev = _data;
+ struct platform_device *pdev = _data;
+ struct axp20x_pek *axp_pek = platform_get_drvdata(pdev);

- sysfs_remove_group(&dev->kobj, &axp20x_attribute_group);
+ sysfs_remove_group(&pdev->dev.kobj, axp_pek->attribute_group);
}

static int axp20x_pek_probe_input_device(struct axp20x_pek *axp20x_pek,
@@ -313,17 +342,19 @@ static int axp20x_pek_probe(struct platform_device *pdev)
return error;
}

- error = sysfs_create_group(&pdev->dev.kobj, &axp20x_attribute_group);
+ axp20x_pek->attribute_group = (struct attribute_group *)platform_get_device_id(pdev)->driver_data;
+
+ error = sysfs_create_group(&pdev->dev.kobj,
+ axp20x_pek->attribute_group);
if (error) {
dev_err(&pdev->dev, "Failed to create sysfs attributes: %d\n",
error);
return error;
}

- error = devm_add_action(&pdev->dev,
- axp20x_remove_sysfs_group, &pdev->dev);
+ error = devm_add_action(&pdev->dev, axp20x_remove_sysfs_group, pdev);
if (error) {
- axp20x_remove_sysfs_group(&pdev->dev);
+ axp20x_remove_sysfs_group(pdev);
dev_err(&pdev->dev, "Failed to add sysfs cleanup action: %d\n",
error);
return error;
@@ -358,8 +389,19 @@ static const struct dev_pm_ops axp20x_pek_pm_ops = {
#endif
};

+static const struct platform_device_id axp_pek_id_match[] = {
+ {
+ .name = "axp20x-pek",
+ .driver_data = (kernel_ulong_t)&axp20x_attribute_group,
+ }, {
+ .name = "axp221-pek",
+ .driver_data = (kernel_ulong_t)&axp221_attribute_group,
+ },
+};
+
static struct platform_driver axp20x_pek_driver = {
.probe = axp20x_pek_probe,
+ .id_table = axp_pek_id_match,
.driver = {
.name = "axp20x-pek",
.pm = &axp20x_pek_pm_ops,
--
2.11.0
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