On Thu, 25 Jun 2015, Vaibhav Hiremath wrote: > Add DT support to the 88pm800 driver, along with compatible > field for it's sub-devices (rtc, onkey and regulator) > > Signed-off-by: Chao Xie <chao.xie@xxxxxxxxxxx> > Signed-off-by: Vaibhav Hiremath <vaibhav.hiremath@xxxxxxxxxx> > --- > drivers/mfd/88pm800.c | 23 +++++++++++++++++++++++ > 1 file changed, 23 insertions(+) > > diff --git a/drivers/mfd/88pm800.c b/drivers/mfd/88pm800.c > index 841717a..40fd014 100644 > --- a/drivers/mfd/88pm800.c > +++ b/drivers/mfd/88pm800.c > @@ -27,6 +27,7 @@ > #include <linux/mfd/core.h> > #include <linux/mfd/88pm80x.h> > #include <linux/slab.h> > +#include <linux/of_device.h> > > /* Interrupt Registers */ > #define PM800_INT_STATUS1 (0x05) > @@ -121,6 +122,11 @@ static const struct i2c_device_id pm80x_id_table[] = { > }; > MODULE_DEVICE_TABLE(i2c, pm80x_id_table); > > +static const struct of_device_id pm80x_of_match_table[] = { > + { .compatible = "marvell,88pm800", }, > + {}, > +}; > + > static struct resource rtc_resources[] = { > { > .name = "88pm80x-rtc", > @@ -133,6 +139,7 @@ static struct resource rtc_resources[] = { > static struct mfd_cell rtc_devs[] = { > { > .name = "88pm80x-rtc", > + .of_compatible = "marvell,88pm80x-rtc", > .num_resources = ARRAY_SIZE(rtc_resources), > .resources = &rtc_resources[0], > .id = -1, > @@ -151,6 +158,7 @@ static struct resource onkey_resources[] = { > static const struct mfd_cell onkey_devs[] = { > { > .name = "88pm80x-onkey", > + .of_compatible = "marvell,88pm80x-onkey", > .num_resources = 1, > .resources = &onkey_resources[0], > .id = -1, > @@ -160,6 +168,7 @@ static const struct mfd_cell onkey_devs[] = { > static const struct mfd_cell regulator_devs[] = { > { > .name = "88pm80x-regulator", > + .of_compatible = "marvell,88pm80x-regulator", > .id = -1, > }, > }; > @@ -544,8 +553,21 @@ static int pm800_probe(struct i2c_client *client, > int ret = 0; > struct pm80x_chip *chip; > struct pm80x_platform_data *pdata = dev_get_platdata(&client->dev); > + struct device_node *np = client->dev.of_node; > struct pm80x_subchip *subchip; > > + if (!pdata && !np) { > + dev_err(&client->dev, > + "pm80x requires platform data or of_node\n"); > + return -EINVAL; > + } > + > + if (!pdata) { > + pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL); > + if (!pdata) > + return -ENOMEM; > + } Why have you allocated data for pdata, then done nothing with it? > ret = pm80x_init(client); > if (ret) { > dev_err(&client->dev, "pm800_init fail\n"); > @@ -611,6 +633,7 @@ static struct i2c_driver pm800_driver = { > .name = "88PM800", > .owner = THIS_MODULE, > .pm = &pm80x_pm_ops, > + .of_match_table = pm80x_of_match_table, > }, > .probe = pm800_probe, > .remove = pm800_remove, -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html