* [PATCH v2 1/2] input: adp5589: Add default platform data
@ 2019-10-30 13:46 Alexandru Ardelean
2019-10-30 13:46 ` [PATCH v2 2/2] input: adp5589: Add basic devicetree support Alexandru Ardelean
0 siblings, 1 reply; 2+ messages in thread
From: Alexandru Ardelean @ 2019-10-30 13:46 UTC (permalink / raw)
To: linux-input, linux-kernel; +Cc: dmitry.torokhov, lars, Alexandru Ardelean
From: Lars-Peter Clausen <lars@metafoo.de>
If no platform data is supplied use a dummy platform data that configures
the device in GPIO only mode. This change adds a adp5589_kpad_pdata_get()
helper that returns the default platform-data. This can be later extended
to load configuration from device-trees or ACPI.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
---
Changelog v1 -> v2:
* adjusted patch `input: adp5589: Add default platform data` by
introducting a `adp5589_kpad_pdata_get()` helper, which returns the
platform-data; the previos patch was based on an older version of the
kernel from the ADI kernel-tree; the driver was sync-ed with the upstream
version
drivers/input/keyboard/adp5589-keys.c | 36 +++++++++++++++++++--------
1 file changed, 26 insertions(+), 10 deletions(-)
diff --git a/drivers/input/keyboard/adp5589-keys.c b/drivers/input/keyboard/adp5589-keys.c
index e7d58e7f0257..c6a801bcdf90 100644
--- a/drivers/input/keyboard/adp5589-keys.c
+++ b/drivers/input/keyboard/adp5589-keys.c
@@ -369,6 +369,25 @@ static const struct adp_constants const_adp5585 = {
.reg = adp5585_reg,
};
+static const struct adp5589_gpio_platform_data adp5589_default_gpio_pdata = {
+ .gpio_start = -1,
+};
+
+static const struct adp5589_kpad_platform_data adp5589_default_pdata = {
+ .gpio_data = &adp5589_default_gpio_pdata,
+};
+
+static const struct adp5589_kpad_platform_data *adp5589_kpad_pdata_get(
+ struct device *dev)
+{
+ const struct adp5589_kpad_platform_data *pdata = dev_get_platdata(dev);
+
+ if (!pdata)
+ pdata = &adp5589_default_pdata;
+
+ return pdata;
+}
+
static int adp5589_read(struct i2c_client *client, u8 reg)
{
int ret = i2c_smbus_read_byte_data(client, reg);
@@ -498,7 +517,8 @@ static int adp5589_build_gpiomap(struct adp5589_kpad *kpad,
static int adp5589_gpio_add(struct adp5589_kpad *kpad)
{
struct device *dev = &kpad->client->dev;
- const struct adp5589_kpad_platform_data *pdata = dev_get_platdata(dev);
+ const struct adp5589_kpad_platform_data *pdata =
+ adp5589_kpad_pdata_get(dev);
const struct adp5589_gpio_platform_data *gpio_data = pdata->gpio_data;
int i, error;
@@ -553,7 +573,8 @@ static int adp5589_gpio_add(struct adp5589_kpad *kpad)
static void adp5589_gpio_remove(struct adp5589_kpad *kpad)
{
struct device *dev = &kpad->client->dev;
- const struct adp5589_kpad_platform_data *pdata = dev_get_platdata(dev);
+ const struct adp5589_kpad_platform_data *pdata =
+ adp5589_kpad_pdata_get(dev);
const struct adp5589_gpio_platform_data *gpio_data = pdata->gpio_data;
int error;
@@ -656,7 +677,7 @@ static int adp5589_setup(struct adp5589_kpad *kpad)
{
struct i2c_client *client = kpad->client;
const struct adp5589_kpad_platform_data *pdata =
- dev_get_platdata(&client->dev);
+ adp5589_kpad_pdata_get(&client->dev);
u8 (*reg) (u8) = kpad->var->reg;
unsigned char evt_mode1 = 0, evt_mode2 = 0, evt_mode3 = 0;
unsigned char pull_mask = 0;
@@ -861,7 +882,7 @@ static int adp5589_keypad_add(struct adp5589_kpad *kpad, unsigned int revid)
{
struct i2c_client *client = kpad->client;
const struct adp5589_kpad_platform_data *pdata =
- dev_get_platdata(&client->dev);
+ adp5589_kpad_pdata_get(&client->dev);
struct input_dev *input;
unsigned int i;
int error;
@@ -992,7 +1013,7 @@ static int adp5589_probe(struct i2c_client *client,
{
struct adp5589_kpad *kpad;
const struct adp5589_kpad_platform_data *pdata =
- dev_get_platdata(&client->dev);
+ adp5589_kpad_pdata_get(&client->dev);
unsigned int revid;
int error, ret;
@@ -1002,11 +1023,6 @@ static int adp5589_probe(struct i2c_client *client,
return -EIO;
}
- if (!pdata) {
- dev_err(&client->dev, "no platform data?\n");
- return -EINVAL;
- }
-
kpad = kzalloc(sizeof(*kpad), GFP_KERNEL);
if (!kpad)
return -ENOMEM;
--
2.20.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [PATCH v2 2/2] input: adp5589: Add basic devicetree support
2019-10-30 13:46 [PATCH v2 1/2] input: adp5589: Add default platform data Alexandru Ardelean
@ 2019-10-30 13:46 ` Alexandru Ardelean
0 siblings, 0 replies; 2+ messages in thread
From: Alexandru Ardelean @ 2019-10-30 13:46 UTC (permalink / raw)
To: linux-input, linux-kernel; +Cc: dmitry.torokhov, lars, Alexandru Ardelean
From: Lars-Peter Clausen <lars@metafoo.de>
Add very basic devicetree suppport to the adp5589 allowing the device to be
registered from devicetree.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
---
drivers/input/keyboard/adp5589-keys.c | 33 ++++++++++++++++++++++++++-
1 file changed, 32 insertions(+), 1 deletion(-)
diff --git a/drivers/input/keyboard/adp5589-keys.c b/drivers/input/keyboard/adp5589-keys.c
index c6a801bcdf90..e281b827995e 100644
--- a/drivers/input/keyboard/adp5589-keys.c
+++ b/drivers/input/keyboard/adp5589-keys.c
@@ -1008,6 +1008,25 @@ static void adp5589_keypad_remove(struct adp5589_kpad *kpad)
}
}
+static int adp5589_i2c_get_driver_data(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ const struct of_device_id *match;
+
+ if (id)
+ return id->driver_data;
+
+ if (!IS_ENABLED(CONFIG_OF) || !i2c->dev.of_node)
+ return -ENODEV;
+
+ match = of_match_node(i2c->dev.driver->of_match_table,
+ i2c->dev.of_node);
+ if (match)
+ return (int)match->data;
+
+ return -ENODEV;
+}
+
static int adp5589_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@@ -1029,7 +1048,11 @@ static int adp5589_probe(struct i2c_client *client,
kpad->client = client;
- switch (id->driver_data) {
+ ret = adp5589_i2c_get_driver_data(client, id);
+ if (ret < 0)
+ return ret;
+
+ switch (ret) {
case ADP5585_02:
kpad->support_row5 = true;
/* fall through */
@@ -1129,6 +1152,13 @@ static int adp5589_resume(struct device *dev)
static SIMPLE_DEV_PM_OPS(adp5589_dev_pm_ops, adp5589_suspend, adp5589_resume);
+static const struct of_device_id adp5589_of_match[] = {
+ { .compatible = "adi,adp5585", .data = (void *)ADP5585_01 },
+ { .compatible = "adi,adp5585-02", .data = (void *)ADP5585_02 },
+ { .compatible = "adi,adp5589", .data = (void *)ADP5589 },
+ {}
+};
+
static const struct i2c_device_id adp5589_id[] = {
{"adp5589-keys", ADP5589},
{"adp5585-keys", ADP5585_01},
@@ -1142,6 +1172,7 @@ static struct i2c_driver adp5589_driver = {
.driver = {
.name = KBUILD_MODNAME,
.pm = &adp5589_dev_pm_ops,
+ .of_match_table = adp5589_of_match,
},
.probe = adp5589_probe,
.remove = adp5589_remove,
--
2.20.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
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