From: Enrico Scholz <enrico.scholz@xxxxxxxxxxxxxxxxx>
Signed-off-by: Enrico Scholz <enrico.scholz@xxxxxxxxxxxxxxxxx>
Tested-by: Stefan Christ <s.christ@xxxxxxxxx>
Signed-off-by: Christian Hemp <c.hemp@xxxxxxxxx>
---
drivers/mfd/da9063.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 47 insertions(+)
diff --git a/drivers/mfd/da9063.c b/drivers/mfd/da9063.c
index a1c748610a..00a61279f3 100644
--- a/drivers/mfd/da9063.c
+++ b/drivers/mfd/da9063.c
@@ -27,6 +27,8 @@ struct da9063 {
struct restart_handler restart;
struct watchdog wd;
struct i2c_client *client;
+ /* dummy client for accessing bank #1 */
+ struct i2c_client *client1;
struct device_d *dev;
unsigned int timeout;
};
@@ -40,6 +42,9 @@ struct da9063 {
#define DA9063_REG_CONTROL_D 0x11
#define DA9063_REG_CONTROL_F 0x13
+/* bank1: control register I */
+#define DA9063_REG1_CONFIG_I 0x10e
+
/* DA9063_REG_FAULT_LOG (addr=0x05) */
#define DA9063_TWD_ERROR 0x01
#define DA9063_POR 0x02
@@ -52,6 +57,9 @@ struct da9063 {
#define DA9063_WATCHDOG 0x01
#define DA9063_SHUTDOWN 0x02
+/* DA9063_REG_CONTROL_I (addr=0x10e) */
+#define DA9062_WATCHDOG_SD BIT(3)
+
struct da906x_device_data {
int (*init)(struct da9063 *priv);
};
@@ -65,6 +73,8 @@ static int da906x_reg_update(struct da9063 *priv, unsigned int reg,
if (reg < 0x100)
client = priv->client;
+ else if (reg < 0x200)
+ client = priv->client1;
else
/* this should/can not happen because function is usually
* called with a static register number; warn about it
@@ -183,6 +193,30 @@ static void da9063_restart(struct restart_handler *rst)
i2c_write_reg(priv->client, DA9063_REG_CONTROL_F, &val, 1);
}
+static int da9062_device_init(struct da9063 *priv)
+{
+ int ret;
+
+ priv->client1 = i2c_new_dummy(priv->client->adapter,
+ priv->client->addr + 1);
+ if (!priv) {
+ dev_warn(priv->dev, "failed to create bank 1 device\n");
+ /* TODO: return -EINVAL; i2c api does not return more
+ * details */
+ return -EINVAL;
+ }
+
+ /* clear CONFIG_I[WATCHDOG_SD] */
+ ret = da906x_reg_update(priv, DA9063_REG1_CONFIG_I,
+ DA9062_WATCHDOG_SD, DA9062_WATCHDOG_SD);
+
+ return ret;
+}
+
+static struct da906x_device_data const da9062_device_data = {
+ .init = da9062_device_init,
+};
+
static int da9063_probe(struct device_d *dev)
{
struct da9063 *priv = NULL;
@@ -229,13 +263,26 @@ on_error:
static struct platform_device_id da9063_id[] = {
{ "da9063", (uintptr_t)(NULL) },
+ { "da9062", (uintptr_t)(&da9062_device_data) },
{ }
};
+static struct of_device_id const da906x_dt_ids[] = {
+ {
+ .compatible = "dlg,da9063",
+ .data = NULL,
+ }, {
+ .compatible = "dlg,da9062",
+ .data = &da9062_device_data,
+ }, {
+ }
+};
+
static struct driver_d da9063_driver = {
.name = "da9063",
.probe = da9063_probe,
.id_table = da9063_id,
+ .of_compatible = DRV_OF_COMPAT(da906x_dt_ids),
};
static int da9063_init(void)
--
2.16.1
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