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| author | Peter Ujfalusi <peter.ujfalusi@ti.com> | 2016-08-31 14:46:21 +0300 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2016-10-04 15:48:05 +0100 |
| commit | 0133d323463ec20131f7fd5a70051bd89db4f7a1 (patch) | |
| tree | 919f9651c5457d77ec6607fc7df686d0be6f7f39 | |
| parent | 25d94a11db6d1e07a8a0914f33456c018049992e (diff) | |
| download | linux-0133d323463ec20131f7fd5a70051bd89db4f7a1.tar.gz linux-0133d323463ec20131f7fd5a70051bd89db4f7a1.tar.bz2 linux-0133d323463ec20131f7fd5a70051bd89db4f7a1.zip | |
mfd: twl6040: Register child device for twl6040-pdmclk
The McPDM in OMAP4/5 is using the pdmclk from twl6040 as functional clock.
The twl6040-pdmclk driver provides a clock which can be used to make sure
that the pdmclk is active when the McPDM is in use.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
| -rw-r--r-- | Documentation/devicetree/bindings/mfd/twl6040.txt | 1 | ||||
| -rw-r--r-- | drivers/mfd/twl6040.c | 5 | ||||
| -rw-r--r-- | include/linux/mfd/twl6040.h | 2 |
3 files changed, 7 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/mfd/twl6040.txt b/Documentation/devicetree/bindings/mfd/twl6040.txt index e6afdfa3543d..9a98ee7c323d 100644 --- a/Documentation/devicetree/bindings/mfd/twl6040.txt +++ b/Documentation/devicetree/bindings/mfd/twl6040.txt @@ -12,6 +12,7 @@ Required properties: - interrupt-parent: The parent interrupt controller - gpio-controller: - #gpio-cells = <1>: twl6040 provides GPO lines. +- #clock-cells = <0>; twl6040 is a provider of pdmclk which is used by McPDM - twl6040,audpwron-gpio: Power on GPIO line for the twl6040 - vio-supply: Regulator for the twl6040 VIO supply diff --git a/drivers/mfd/twl6040.c b/drivers/mfd/twl6040.c index c3ad59ef43dd..d66502d36ba0 100644 --- a/drivers/mfd/twl6040.c +++ b/drivers/mfd/twl6040.c @@ -783,6 +783,11 @@ static int twl6040_probe(struct i2c_client *client, cell->name = "twl6040-gpo"; children++; + /* PDM clock support */ + cell = &twl6040->cells[children]; + cell->name = "twl6040-pdmclk"; + children++; + /* The chip is powered down so mark regmap to cache only and dirty */ regcache_cache_only(twl6040->regmap, true); regcache_mark_dirty(twl6040->regmap); diff --git a/include/linux/mfd/twl6040.h b/include/linux/mfd/twl6040.h index 36795a1be479..a2e88761c09f 100644 --- a/include/linux/mfd/twl6040.h +++ b/include/linux/mfd/twl6040.h @@ -168,7 +168,7 @@ #define TWL6040_VIBROCDET 0x20 #define TWL6040_TSHUTDET 0x40 -#define TWL6040_CELLS 3 +#define TWL6040_CELLS 4 #define TWL6040_REV_ES1_0 0x00 #define TWL6040_REV_ES1_1 0x01 /* Rev ES1.1 and ES1.2 */ |