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git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
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>
authored by
Peter Ujfalusi
and committed by
Lee Jones
0133d323
25d94a11
+7
-1
+1
Documentation/devicetree/bindings/mfd/twl6040.txt
+1
Documentation/devicetree/bindings/mfd/twl6040.txt
···
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- interrupt-parent: The parent interrupt controller
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- gpio-controller:
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- #gpio-cells = <1>: twl6040 provides GPO lines.
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+
- #clock-cells = <0>; twl6040 is a provider of pdmclk which is used by McPDM
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- twl6040,audpwron-gpio: Power on GPIO line for the twl6040
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- vio-supply: Regulator for the twl6040 VIO supply
+5
drivers/mfd/twl6040.c
+5
drivers/mfd/twl6040.c
···
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cell->name = "twl6040-gpo";
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children++;
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+
/* PDM clock support */
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cell = &twl6040->cells[children];
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cell->name = "twl6040-pdmclk";
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+
children++;
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+
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/* The chip is powered down so mark regmap to cache only and dirty */
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regcache_cache_only(twl6040->regmap, true);
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regcache_mark_dirty(twl6040->regmap);