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[thirdparty/kernel/stable-queue.git] / releases / 4.4.162 / asoc-wm8804-add-acpi-support.patch
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1From foo@baz Tue Oct 16 12:20:44 CEST 2018
2From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
3Date: Wed, 22 Aug 2018 22:49:36 -0500
4Subject: ASoC: wm8804: Add ACPI support
5
6From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
7
8[ Upstream commit 960cdd50ca9fdfeb82c2757107bcb7f93c8d7d41 ]
9
10HID made of either Wolfson/CirrusLogic PCI ID + 8804 identifier.
11
12This helps enumerate the HifiBerry Digi+ HAT boards on the Up2 platform.
13
14The scripts at https://github.com/thesofproject/acpi-scripts can be
15used to add the ACPI initrd overlays.
16
17Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
18Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
19Signed-off-by: Mark Brown <broonie@kernel.org>
20Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
21Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
22---
23 sound/soc/codecs/wm8804-i2c.c | 15 ++++++++++++++-
24 1 file changed, 14 insertions(+), 1 deletion(-)
25
26--- a/sound/soc/codecs/wm8804-i2c.c
27+++ b/sound/soc/codecs/wm8804-i2c.c
28@@ -13,6 +13,7 @@
29 #include <linux/init.h>
30 #include <linux/module.h>
31 #include <linux/i2c.h>
32+#include <linux/acpi.h>
33
34 #include "wm8804.h"
35
36@@ -40,17 +41,29 @@ static const struct i2c_device_id wm8804
37 };
38 MODULE_DEVICE_TABLE(i2c, wm8804_i2c_id);
39
40+#if defined(CONFIG_OF)
41 static const struct of_device_id wm8804_of_match[] = {
42 { .compatible = "wlf,wm8804", },
43 { }
44 };
45 MODULE_DEVICE_TABLE(of, wm8804_of_match);
46+#endif
47+
48+#ifdef CONFIG_ACPI
49+static const struct acpi_device_id wm8804_acpi_match[] = {
50+ { "1AEC8804", 0 }, /* Wolfson PCI ID + part ID */
51+ { "10138804", 0 }, /* Cirrus Logic PCI ID + part ID */
52+ { },
53+};
54+MODULE_DEVICE_TABLE(acpi, wm8804_acpi_match);
55+#endif
56
57 static struct i2c_driver wm8804_i2c_driver = {
58 .driver = {
59 .name = "wm8804",
60 .pm = &wm8804_pm,
61- .of_match_table = wm8804_of_match,
62+ .of_match_table = of_match_ptr(wm8804_of_match),
63+ .acpi_match_table = ACPI_PTR(wm8804_acpi_match),
64 },
65 .probe = wm8804_i2c_probe,
66 .remove = wm8804_i2c_remove,