CLK: clk-twl6040: Initial clock driver for OMAP4+ McPDM fclk clock

On OMAP4+ platforms the functional clock for the McPDM IP is suplied by
the twl6040 codec (bit clock on the PDM bus).
This common clock driver for twl6040 will register the mcpdm_fclk clock to
be used by the McPDM driver to make sure that the needed clocks are
available when needed.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index bace9e98f75d..3d0b78438521 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -53,4 +53,12 @@ config COMMON_CLK_MAX77686
         ---help---
           This driver supports Maxim 77686 crystal oscillator clock. 
 
+config CLK_TWL6040
+        tristate "External McPDM functional clock from twl6040"
+        depends on TWL6040_CORE
+        ---help---
+          Enable the external functional clock support on OMAP4+ platforms for
+          McPDM. McPDM module is using the external bit clock on the McPDM bus
+          as functional clock.
+
 endmenu