struct mdio_gpio_info {
struct mdiobb_ctrl ctrl;
int mdc, mdio;
+ int mdc_active_low, mdio_active_low;
};
static void *mdio_gpio_of_get_data(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
struct mdio_gpio_platform_data *pdata;
+ enum of_gpio_flags flags;
int ret;
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
return NULL;
- ret = of_get_gpio(np, 0);
+ ret = of_get_gpio_flags(np, 0, &flags);
if (ret < 0)
return NULL;
pdata->mdc = ret;
+ pdata->mdc_active_low = flags & OF_GPIO_ACTIVE_LOW;
- ret = of_get_gpio(np, 1);
+ ret = of_get_gpio_flags(np, 1, &flags);
if (ret < 0)
return NULL;
pdata->mdio = ret;
+ pdata->mdio_active_low = flags & OF_GPIO_ACTIVE_LOW;
return pdata;
}
container_of(ctrl, struct mdio_gpio_info, ctrl);
if (dir)
- gpio_direction_output(bitbang->mdio, 1);
+ gpio_direction_output(bitbang->mdio,
+ 1 ^ bitbang->mdio_active_low);
else
gpio_direction_input(bitbang->mdio);
}
struct mdio_gpio_info *bitbang =
container_of(ctrl, struct mdio_gpio_info, ctrl);
- return gpio_get_value(bitbang->mdio);
+ return gpio_get_value(bitbang->mdio) ^ bitbang->mdio_active_low;
}
static void mdio_set(struct mdiobb_ctrl *ctrl, int what)
struct mdio_gpio_info *bitbang =
container_of(ctrl, struct mdio_gpio_info, ctrl);
- gpio_set_value(bitbang->mdio, what);
+ gpio_set_value(bitbang->mdio, what ^ bitbang->mdio_active_low);
}
static void mdc_set(struct mdiobb_ctrl *ctrl, int what)
struct mdio_gpio_info *bitbang =
container_of(ctrl, struct mdio_gpio_info, ctrl);
- gpio_set_value(bitbang->mdc, what);
+ gpio_set_value(bitbang->mdc, what ^ bitbang->mdc_active_low);
}
static struct mdiobb_ops mdio_gpio_ops = {
bitbang->ctrl.ops = &mdio_gpio_ops;
bitbang->ctrl.reset = pdata->reset;
bitbang->mdc = pdata->mdc;
+ bitbang->mdc_active_low = pdata->mdc_active_low;
bitbang->mdio = pdata->mdio;
+ bitbang->mdio_active_low = pdata->mdio_active_low;
new_bus = alloc_mdio_bitbang(&bitbang->ctrl);
if (!new_bus)