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Subject[PATCH v2 5/6] misc: atmel-ssc: get LRCLK pin selection from DT
Store LRCLK pin selection for use by ASoC DAI driver.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>

---
v2: split from ASoC implementation

---
drivers/misc/atmel-ssc.c | 9 +++++++++
include/linux/atmel-ssc.h | 2 ++
2 files changed, 11 insertions(+)

diff --git a/drivers/misc/atmel-ssc.c b/drivers/misc/atmel-ssc.c
index ab4144ea1f11..1322e29bc37a 100644
--- a/drivers/misc/atmel-ssc.c
+++ b/drivers/misc/atmel-ssc.c
@@ -210,6 +210,15 @@ static int ssc_probe(struct platform_device *pdev)
struct device_node *np = pdev->dev.of_node;
ssc->clk_from_rk_pin =
of_property_read_bool(np, "atmel,clk-from-rk-pin");
+ ssc->lrclk_from_tf_pin =
+ of_property_read_bool(np, "atmel,lrclk-from-tf-pin");
+ ssc->lrclk_from_rf_pin =
+ of_property_read_bool(np, "atmel,lrclk-from-rf-pin");
+
+ if (ssc->lrclk_from_tf_pin && ssc->lrclk_from_rf_pin) {
+ dev_err(&pdev->dev, "both LRCLK from RK/TK options found in DT node");
+ return -EINVAL;
+ }
}

regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
diff --git a/include/linux/atmel-ssc.h b/include/linux/atmel-ssc.h
index 6091d2abc1eb..fbe1c2ffaa81 100644
--- a/include/linux/atmel-ssc.h
+++ b/include/linux/atmel-ssc.h
@@ -21,6 +21,8 @@ struct ssc_device {
int user;
int irq;
bool clk_from_rk_pin;
+ bool lrclk_from_tf_pin;
+ bool lrclk_from_rf_pin;
bool sound_dai;
};

--
2.20.1
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