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authorMark Brown <broonie@opensource.wolfsonmicro.com>2012-05-17 13:04:57 +0400
committerMike Turquette <mturquette@linaro.org>2012-07-12 02:36:44 +0400
commitf05259a6ffa40097b5565f25c3fcf833a9d3ecf5 (patch)
tree7e690ed1971a4db7191f807ef8adde5ef324e7c7 /drivers/clk/Kconfig
parentdc4cd941c900fda27f0146ab615122426229de73 (diff)
downloadlinux-f05259a6ffa40097b5565f25c3fcf833a9d3ecf5.tar.xz
clk: wm831x: Add initial WM831x clock driver
The WM831x and WM832x series of PMICs contain a flexible clocking subsystem intended to provide always on and system core clocks. It features: - A 32.768kHz crystal oscillator which can optionally be used to pass through an externally generated clock. - A FLL which can be clocked from either the 32.768kHz oscillator or the CLKIN pin. - A CLKOUT pin which can bring out either the oscillator or the FLL output. - The 32.768kHz clock can also optionally be brought out on the GPIO pins of the device. This driver fully supports the 32.768kHz oscillator and CLKOUT. The FLL is supported only in AUTO mode, the full flexibility of the FLL cannot currently be used. Due to a lack of access to systems where the core SoC has been converted to use the generic clock API this driver has been compile tested only. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
Diffstat (limited to 'drivers/clk/Kconfig')
-rw-r--r--drivers/clk/Kconfig7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index 4864407e3fc4..3f99b9099658 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -34,4 +34,11 @@ config COMMON_CLK_DEBUG
clk_flags, clk_prepare_count, clk_enable_count &
clk_notifier_count.
+config COMMON_CLK_WM831X
+ tristate "Clock driver for WM831x/2x PMICs"
+ depends on MFD_WM831X
+ ---help---
+ Supports the clocking subsystem of the WM831x/2x series of
+ PMICs from Wolfson Microlectronics.
+
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