diff options
| -rw-r--r-- | Documentation/devicetree/bindings/mfd/twl6040.txt | 2 | ||||
| -rw-r--r-- | drivers/mfd/twl6040.c | 10 | ||||
| -rw-r--r-- | include/linux/mfd/twl6040.h | 2 |
3 files changed, 14 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mfd/twl6040.txt b/Documentation/devicetree/bindings/mfd/twl6040.txt index 0f5dd709d752..a41157b5d930 100644 --- a/Documentation/devicetree/bindings/mfd/twl6040.txt +++ b/Documentation/devicetree/bindings/mfd/twl6040.txt @@ -19,6 +19,8 @@ Required properties: Optional properties, nodes: - enable-active-high: To power on the twl6040 during boot. +- clocks: phandle to the clk32k clock provider +- clock-names: Must be "clk32k" Vibra functionality Required properties: diff --git a/drivers/mfd/twl6040.c b/drivers/mfd/twl6040.c index cb37bb8f8e41..574774d7f826 100644 --- a/drivers/mfd/twl6040.c +++ b/drivers/mfd/twl6040.c @@ -291,6 +291,8 @@ int twl6040_power(struct twl6040 *twl6040, int on) if (twl6040->power_count++) goto out; + clk_prepare_enable(twl6040->clk32k); + /* Allow writes to the chip */ regcache_cache_only(twl6040->regmap, false); @@ -346,6 +348,8 @@ int twl6040_power(struct twl6040 *twl6040, int on) twl6040->sysclk = 0; twl6040->mclk = 0; + + clk_disable_unprepare(twl6040->clk32k); } out: @@ -644,6 +648,12 @@ static int twl6040_probe(struct i2c_client *client, i2c_set_clientdata(client, twl6040); + twl6040->clk32k = devm_clk_get(&client->dev, "clk32k"); + if (IS_ERR(twl6040->clk32k)) { + dev_info(&client->dev, "clk32k is not handled\n"); + twl6040->clk32k = NULL; + } + twl6040->supplies[0].supply = "vio"; twl6040->supplies[1].supply = "v2v1"; ret = devm_regulator_bulk_get(&client->dev, TWL6040_NUM_SUPPLIES, diff --git a/include/linux/mfd/twl6040.h b/include/linux/mfd/twl6040.h index a69d16b30c18..8f9fc3d26e6d 100644 --- a/include/linux/mfd/twl6040.h +++ b/include/linux/mfd/twl6040.h @@ -28,6 +28,7 @@ #include <linux/interrupt.h> #include <linux/mfd/core.h> #include <linux/regulator/consumer.h> +#include <linux/clk.h> #define TWL6040_REG_ASICID 0x01 #define TWL6040_REG_ASICREV 0x02 @@ -223,6 +224,7 @@ struct twl6040 { struct regmap *regmap; struct regmap_irq_chip_data *irq_data; struct regulator_bulk_data supplies[2]; /* supplies for vio, v2v1 */ + struct clk *clk32k; struct mutex mutex; struct mutex irq_mutex; struct mfd_cell cells[TWL6040_CELLS]; |