ASoC: L3 bus: Add default gpio ops

This adds aptional GPIO bit-bang based callback implementations
for setting CLK, DATA and MODE L3 bus lines.  It is added here
to avoid possible duplicate implementations across users of
the bus.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 12 insertions, 3 deletions

diff --git a/include/sound/l3.h b/include/sound/l3.h
index 423a08f0f1b0..1471da22adad 100644
--- a/include/sound/l3.h
+++ b/include/sound/l3.h
@@ -2,9 +2,15 @@
 #define _L3_H_ 1
 
 struct l3_pins {
-        void (*setdat)(int);
-        void (*setclk)(int);
-        void (*setmode)(int);
+        void (*setdat)(struct l3_pins *, int);
+        void (*setclk)(struct l3_pins *, int);
+        void (*setmode)(struct l3_pins *, int);
+
+        int gpio_data;
+        int gpio_clk;
+        int gpio_mode;
+        int use_gpios;
+
         int data_hold;
         int data_setup;
         int clock_high;
@@ -13,6 +19,9 @@ struct l3_pins {
         int mode_setup;
 };
 
+struct device;
+
 int l3_write(struct l3_pins *adap, u8 addr, u8 *data, int len);
+int l3_set_gpio_ops(struct device *dev, struct l3_pins *adap);
 
 #endif