driver/i2c/max98927: add i2c driver for Maxim 98927 codec

Maxim 98927 kernel driver requires entries in the ACPI SSDT table,
add a SSDT generator as part of this driver.

BUG=chrome-os-partner:62051
BRANCH=None
TEST=After boot, dump and verify that the generated SSDT ACPI table has the
required entries.

Change-Id: Ic2d4d8449288bc00d085852220b2e1e7a208e9ef
Signed-off-by: Naresh G Solanki <naresh.solanki@intel.com>
Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Signed-off-by: M Naveen <naveen.m@intel.com>
Signed-off-by: Dylan Reid <dgreid@chromium.org>
Reviewed-on: https://review.coreboot.org/18211
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>

1 files changed, 30 insertions, 0 deletions

diff --git a/src/drivers/i2c/max98927/chip.h b/src/drivers/i2c/max98927/chip.h
new file mode 100644
index 0000000000..c7101bc01f
--- /dev/null
+++ b/src/drivers/i2c/max98927/chip.h
@@ -0,0 +1,30 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2017 Intel Corp.
+ *
+ * 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; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+/*
+ * Maxim MAX98927 audio codec devicetree bindings
+ */
+struct drivers_i2c_max98927_config {
+	/* I2C Bus Frequency in Hertz (default 400kHz) */
+	unsigned int bus_speed;
+	/* Set ‘1’ if I2S channel size is not 32bit. */
+	bool interleave_mode;
+	/* Identifier for chips */
+	unsigned int uid;
+	/* Device Description */
+	const char *desc;
+	/* ACPI Device Name */
+	const char *name;
+};