treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

Based on 2 normalized pattern(s):

this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation

this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation #

extracted by the scancode license scanner the SPDX license identifier

GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

ASoC: rl6437a: use __be32 for a __be32 buf

The buf in rl6347a_hw_read is __be32.

Cc: Oder Chiou <oder_chiou@realtek.com>
Signed-off-by: Bard liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: rl6347a: Use dev_err for I2C communication error prints

It's difficult to guess from bunch of "ret=-121" errors what driver and
device actually caused them. Since struct i2c_client has the dev pointer
use that for dev_err() with meaningful error message.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: rl6347a: Use dev_err for I2C communication error prints

It's difficult to guess from bunch of "ret=-121" errors what driver and
device actually caused them. Since struct i2c_client has the dev pointer
use that for dev_err() with meaningful error message.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: rl6347a: Clean up unneeded inclusion of header files

Also move the include of sound/hda_verbs.h to rl6347a.h because it is used
in rl6347a.h.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: rt286: Add RL6347A class device shared support for RT286

The patch separates the IO function from the rt286. It is prepared to share
for new chips that support the same IO function.

Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>