pwm-pca9685: enable ACPI device found on Galileo Gen2

There is a chip connected to i2c bus on Intel Galileo Gen2 board. Enable it via
ACPI ID INT3492.

Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

diff --git a/drivers/pwm/Kconfig b/drivers/pwm/Kconfig
index 0cfaf6b3aa03c9d4b10a2ff50715a8bc77b151bb..2f4641a0e88bc3da19e28c3a8e3f432c14f504a9 100644 (file)
--- a/drivers/pwm/Kconfig
+++ b/drivers/pwm/Kconfig
@@ -272,7 +272,7 @@ config PWM_MXS
 
 config PWM_PCA9685
        tristate "NXP PCA9685 PWM driver"
-       depends on OF && I2C
+       depends on I2C
        select REGMAP_I2C
        help
          Generic PWM framework driver for NXP PCA9685 LED controller.

diff --git a/drivers/pwm/pwm-pca9685.c b/drivers/pwm/pwm-pca9685.c
index 70448a6079b02ede68edf1b2242a5e7b049fb207..117fccf7934a73a3c4098d809ff72bb9bef8006a 100644 (file)
--- a/drivers/pwm/pwm-pca9685.c
+++ b/drivers/pwm/pwm-pca9685.c
@@ -19,9 +19,11 @@
  * this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <linux/acpi.h>
 #include <linux/i2c.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/property.h>
 #include <linux/pwm.h>
 #include <linux/regmap.h>
 #include <linux/slab.h>
@@ -297,7 +299,6 @@ static const struct regmap_config pca9685_regmap_i2c_config = {
 static int pca9685_pwm_probe(struct i2c_client *client,
                                const struct i2c_device_id *id)
 {
-       struct device_node *np = client->dev.of_node;
        struct pca9685 *pca;
        int ret;
        int mode2;
@@ -320,12 +321,12 @@ static int pca9685_pwm_probe(struct i2c_client *client,
 
        regmap_read(pca->regmap, PCA9685_MODE2, &mode2);
 
-       if (of_property_read_bool(np, "invert"))
+       if (device_property_read_bool(&client->dev, "invert"))
                mode2 |= MODE2_INVRT;
        else
                mode2 &= ~MODE2_INVRT;
 
-       if (of_property_read_bool(np, "open-drain"))
+       if (device_property_read_bool(&client->dev, "open-drain"))
                mode2 &= ~MODE2_OUTDRV;
        else
                mode2 |= MODE2_OUTDRV;
@@ -363,16 +364,27 @@ static const struct i2c_device_id pca9685_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, pca9685_id);
 
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id pca9685_acpi_ids[] = {
+       { "INT3492", 0 },
+       { /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(acpi, pca9685_acpi_ids);
+#endif
+
+#ifdef CONFIG_OF
 static const struct of_device_id pca9685_dt_ids[] = {
        { .compatible = "nxp,pca9685-pwm", },
        { /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, pca9685_dt_ids);
+#endif
 
 static struct i2c_driver pca9685_i2c_driver = {
        .driver = {
                .name = "pca9685-pwm",
-               .of_match_table = pca9685_dt_ids,
+               .acpi_match_table = ACPI_PTR(pca9685_acpi_ids),
+               .of_match_table = of_match_ptr(pca9685_dt_ids),
        },
        .probe = pca9685_pwm_probe,
        .remove = pca9685_pwm_remove,