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| author | Rajat Jain <rajatja@google.com> | 2017-10-03 20:19:21 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2017-11-21 13:29:15 +0100 |
| commit | 847989e548ee76f06fd51b61c1fb887d1e86a239 (patch) | |
| tree | 3f520ca9ede18f7eefd127b2e642c8eae3810d70 /drivers/hid/i2c-hid/i2c-hid.c | |
| parent | Merge branch 'for-linus' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/gi... (diff) | |
| download | linux-847989e548ee76f06fd51b61c1fb887d1e86a239.tar.xz linux-847989e548ee76f06fd51b61c1fb887d1e86a239.zip | |
HID: i2c-hid: Allow ACPI systems to specify "post-power-on-delay-ms"
The property "post-power-on-delay-ms" allows a platform to specify
the delay needed after power-on, but only via device trees currently.
Use device_property_* instead of of_* reads to allow ACPI systems to
also provide the same information. This is useful for Wacom hardware
on ACPI systems.
Signed-off-by: Rajat Jain <rajatja@google.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/i2c-hid/i2c-hid.c')
| -rw-r--r-- | drivers/hid/i2c-hid/i2c-hid.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c index e054ee43c1e2..7230243b94d3 100644 --- a/drivers/hid/i2c-hid/i2c-hid.c +++ b/drivers/hid/i2c-hid/i2c-hid.c @@ -934,11 +934,6 @@ static int i2c_hid_of_probe(struct i2c_client *client, } pdata->hid_descriptor_address = val; - ret = of_property_read_u32(dev->of_node, "post-power-on-delay-ms", - &val); - if (!ret) - pdata->post_power_delay_ms = val; - return 0; } @@ -955,6 +950,16 @@ static inline int i2c_hid_of_probe(struct i2c_client *client, } #endif +static void i2c_hid_fwnode_probe(struct i2c_client *client, + struct i2c_hid_platform_data *pdata) +{ + u32 val; + + if (!device_property_read_u32(&client->dev, "post-power-on-delay-ms", + &val)) + pdata->post_power_delay_ms = val; +} + static int i2c_hid_probe(struct i2c_client *client, const struct i2c_device_id *dev_id) { @@ -998,6 +1003,9 @@ static int i2c_hid_probe(struct i2c_client *client, ihid->pdata = *platform_data; } + /* Parse platform agnostic common properties from ACPI / device tree */ + i2c_hid_fwnode_probe(client, &ihid->pdata); + ihid->pdata.supply = devm_regulator_get(&client->dev, "vdd"); if (IS_ERR(ihid->pdata.supply)) { ret = PTR_ERR(ihid->pdata.supply); |