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mfd: twl6040: Optional clk32k clock handling

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In certain boards the source for the clk32k clock can be gated. In these
boards the clk32k clock can be provided to the driver and it is going to be
enabled/disabled when it is needed.
If the clk32k clock is not provided the driver will assume that it is always
running.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Peter Ujfalusi
2014-04-03 13:54:41 +03:00
committed by Lee Jones
parent 11e38e11af
commit 68bab8662f
3 changed files with 14 additions and 0 deletions
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2
include/linux/mfd/twl6040.h
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@@ -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];