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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2015-10-07 13:18:49 +0300
committerThierry Reding <thierry.reding@gmail.com>2015-11-06 16:14:19 +0300
commit912b8439041317a0562609ad892eeab9ba2f0cb2 (patch)
tree3ca0fed84b0cf057a38bc22bf786439886346c4f /drivers/pwm
parent7e3b7dc76c41f9042a7079eb07d071f744bbd87a (diff)
downloadlinux-912b8439041317a0562609ad892eeab9ba2f0cb2.tar.xz
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>
Diffstat (limited to 'drivers/pwm')
-rw-r--r--drivers/pwm/Kconfig2
-rw-r--r--drivers/pwm/pwm-pca9685.c20
2 files changed, 17 insertions, 5 deletions
diff --git a/drivers/pwm/Kconfig b/drivers/pwm/Kconfig
index 0cfaf6b3aa03..2f4641a0e88b 100644
--- 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 70448a6079b0..117fccf7934a 100644
--- 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,