ASoC: sta350: Add codec driver

The TI STA350 is an integrated 2.1-channel power amplifier that is
controllable over I2C. This patch adds an ASoC driver for it.

At a glance, this chip is very similar to the STA320 for which a driver
already exists. In details, however, the register maps contain subtle
differences which made a whole new driver easier to write and maintain.

[daniel@zonque.org: cleanups, DT property rework, rebased on asoc-next]
Signed-off-by: Sven Brandau <brandau@gmx.de>
Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 52 insertions, 0 deletions

diff --git a/include/sound/sta350.h b/include/sound/sta350.h
new file mode 100644
index 000000000000..3a3298106b22
--- /dev/null
+++ b/include/sound/sta350.h
@@ -0,0 +1,52 @@
+/*
+ * Platform data for ST STA350 ASoC codec driver.
+ *
+ * Copyright: 2014 Raumfeld GmbH
+ * Author: Sven Brandau <info@brandau.biz>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+#ifndef __LINUX_SND__STA350_H
+#define __LINUX_SND__STA350_H
+
+#define STA350_OCFG_2CH         0
+#define STA350_OCFG_2_1CH       1
+#define STA350_OCFG_1CH         3
+
+#define STA350_OM_CH1           0
+#define STA350_OM_CH2           1
+#define STA350_OM_CH3           2
+
+#define STA350_THERMAL_ADJUSTMENT_ENABLE        1
+#define STA350_THERMAL_RECOVERY_ENABLE          2
+#define STA350_FAULT_DETECT_RECOVERY_BYPASS     1
+
+#define STA350_FFX_PM_DROP_COMP                 0
+#define STA350_FFX_PM_TAPERED_COMP              1
+#define STA350_FFX_PM_FULL_POWER                2
+#define STA350_FFX_PM_VARIABLE_DROP_COMP        3
+
+
+struct sta350_platform_data {
+        u8 output_conf;
+        u8 ch1_output_mapping;
+        u8 ch2_output_mapping;
+        u8 ch3_output_mapping;
+        u8 ffx_power_output_mode;
+        u8 drop_compensation_ns;
+        unsigned int thermal_warning_recovery:1;
+        unsigned int thermal_warning_adjustment:1;
+        unsigned int fault_detect_recovery:1;
+        unsigned int oc_warning_adjustment:1;
+        unsigned int max_power_use_mpcc:1;
+        unsigned int max_power_correction:1;
+        unsigned int am_reduction_mode:1;
+        unsigned int odd_pwm_speed_mode:1;
+        unsigned int distortion_compensation:1;
+        unsigned int invalid_input_detect_mute:1;
+};
+
+#endif /* __LINUX_SND__STA350_H */