struct videomode mode;
+ struct regulator_bulk_data supplies[7];
+
u8 data_lanes;
bool is_power_on;
};
static int lt8912_hard_power_on(struct lt8912 *lt)
{
+ int ret;
+
+ ret = regulator_bulk_enable(ARRAY_SIZE(lt->supplies), lt->supplies);
+ if (ret)
+ return ret;
+
gpiod_set_value_cansleep(lt->gp_reset, 0);
msleep(20);
{
gpiod_set_value_cansleep(lt->gp_reset, 1);
msleep(20);
+
+ regulator_bulk_disable(ARRAY_SIZE(lt->supplies), lt->supplies);
+
lt->is_power_on = false;
}
.get_edid = lt8912_bridge_get_edid,
};
+static int lt8912_bridge_resume(struct device *dev)
+{
+ struct lt8912 *lt = dev_get_drvdata(dev);
+ int ret;
+
+ ret = lt8912_hard_power_on(lt);
+ if (ret)
+ return ret;
+
+ ret = lt8912_soft_power_on(lt);
+ if (ret)
+ return ret;
+
+ return lt8912_video_on(lt);
+}
+
+static int lt8912_bridge_suspend(struct device *dev)
+{
+ struct lt8912 *lt = dev_get_drvdata(dev);
+
+ lt8912_hard_power_off(lt);
+
+ return 0;
+}
+
+static DEFINE_SIMPLE_DEV_PM_OPS(lt8912_bridge_pm_ops, lt8912_bridge_suspend, lt8912_bridge_resume);
+
+static int lt8912_get_regulators(struct lt8912 *lt)
+{
+ unsigned int i;
+ const char * const supply_names[] = {
+ "vdd", "vccmipirx", "vccsysclk", "vcclvdstx",
+ "vcchdmitx", "vcclvdspll", "vcchdmipll"
+ };
+
+ for (i = 0; i < ARRAY_SIZE(lt->supplies); i++)
+ lt->supplies[i].supply = supply_names[i];
+
+ return devm_regulator_bulk_get(lt->dev, ARRAY_SIZE(lt->supplies),
+ lt->supplies);
+}
+
static int lt8912_parse_dt(struct lt8912 *lt)
{
struct gpio_desc *gp_reset;
goto err_free_host_node;
}
+ ret = lt8912_get_regulators(lt);
+ if (ret)
+ goto err_free_host_node;
+
of_node_put(port_node);
return 0;
.driver = {
.name = "lt8912",
.of_match_table = lt8912_dt_match,
+ .pm = pm_sleep_ptr(<8912_bridge_pm_ops),
},
.probe = lt8912_probe,
.remove = lt8912_remove,