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Subject[RFC PATCH 1/2] ASoC: add support of mclk clock providers in wm8894 driver
Date
Wolfson wm8994 codec bindings exposes MCLK1 and MCLK1 clocks.
This patch adds support of MCLK1 and MCLK2 in mfd driver.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
---
drivers/mfd/wm8994-core.c | 9 +++++++++
include/linux/mfd/wm8994/pdata.h | 6 ++++++
2 files changed, 15 insertions(+)

diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c
index 953d079..f1ff9d8 100644
--- a/drivers/mfd/wm8994-core.c
+++ b/drivers/mfd/wm8994-core.c
@@ -12,6 +12,7 @@
*
*/

+#include <linux/clk.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
@@ -310,6 +311,14 @@ static int wm8994_set_pdata_from_of(struct wm8994 *wm8994)
if (pdata->ldo[1].enable < 0)
pdata->ldo[1].enable = 0;

+ pdata->mclk1 = devm_clk_get(wm8994->dev, "MCLK1");
+ if (IS_ERR(pdata->mclk1))
+ pdata->mclk1 = NULL;
+
+ pdata->mclk2 = devm_clk_get(wm8994->dev, "MCLK2");
+ if (IS_ERR(pdata->mclk2))
+ pdata->mclk2 = NULL;
+
return 0;
}
#else
diff --git a/include/linux/mfd/wm8994/pdata.h b/include/linux/mfd/wm8994/pdata.h
index 90c6052..8037d26 100644
--- a/include/linux/mfd/wm8994/pdata.h
+++ b/include/linux/mfd/wm8994/pdata.h
@@ -233,6 +233,12 @@ struct wm8994_pdata {
* GPIO for the IRQ pin if host only supports edge triggering
*/
int irq_gpio;
+
+ /* MCLK1 clock provider */
+ struct clk *mclk1;
+
+ /* MCLK2 clock provider */
+ struct clk *mclk2;
};

#endif
--
1.9.1
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