Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / include / linux / spi / at73c213.h

diff --git a/kernel/include/linux/spi/at73c213.h b/kernel/include/linux/spi/at73c213.h
new file mode 100644 (file)
index 0000000..0f20a70
--- /dev/null
+++ b/kernel/include/linux/spi/at73c213.h
@@ -0,0 +1,25 @@
+/*
+ * Board-specific data used to set up AT73c213 audio DAC driver.
+ */
+
+#ifndef __LINUX_SPI_AT73C213_H
+#define __LINUX_SPI_AT73C213_H
+
+/**
+ * at73c213_board_info - how the external DAC is wired to the device.
+ *
+ * @ssc_id: SSC platform_driver id the DAC shall use to stream the audio.
+ * @dac_clk: the external clock used to provide master clock to the DAC.
+ * @shortname: a short discription for the DAC, seen by userspace tools.
+ *
+ * This struct contains the configuration of the hardware connection to the
+ * external DAC. The DAC needs a master clock and a I2S audio stream. It also
+ * provides a name which is used to identify it in userspace tools.
+ */
+struct at73c213_board_info {
+       int             ssc_id;
+       struct clk      *dac_clk;
+       char            shortname[32];
+};
+
+#endif /* __LINUX_SPI_AT73C213_H */