From facbf472244876049df61ea0b9577fac9722b08d Mon Sep 17 00:00:00 2001
From: Maxim Polyakov <max.senia.poliak@gmail.com>
Date: Sun, 27 Oct 2019 15:07:00 +0300
Subject: superio/nuvoton/nct6791d: use SuperIO ACPI generator

Adds SuperIO SSDT ACPI generator[1] support.
It has been tested on Asrock H110M DVS motherboard [2].

[1] https://review.coreboot.org/c/coreboot/+/33033
[2] https://review.coreboot.org/c/coreboot/+/36381

Change-Id: Idad66546168bbd26f0a4241deb66e5bfd83367af
Signed-off-by: Maxim Polyakov <max.senia.poliak@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36379
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
---
 src/superio/nuvoton/nct6791d/Makefile.inc |  2 ++
 src/superio/nuvoton/nct6791d/superio.c    | 30 ++++++++++++++++++++++++++++--
 2 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/src/superio/nuvoton/nct6791d/Makefile.inc b/src/superio/nuvoton/nct6791d/Makefile.inc
index db5c620646..a1299a4830 100644
--- a/src/superio/nuvoton/nct6791d/Makefile.inc
+++ b/src/superio/nuvoton/nct6791d/Makefile.inc
@@ -14,3 +14,5 @@
 ##
 
 ramstage-$(CONFIG_SUPERIO_NUVOTON_NCT6791D) += superio.c
+ramstage-$(CONFIG_SUPERIO_NUVOTON_NCT6791D) += ../../common/ssdt.c
+ramstage-$(CONFIG_SUPERIO_NUVOTON_NCT6791D) += ../../common/generic.c
diff --git a/src/superio/nuvoton/nct6791d/superio.c b/src/superio/nuvoton/nct6791d/superio.c
index 23d5a6f824..08f0bfa3a6 100644
--- a/src/superio/nuvoton/nct6791d/superio.c
+++ b/src/superio/nuvoton/nct6791d/superio.c
@@ -22,10 +22,10 @@
 #include <device/pnp.h>
 #include <pc80/keyboard.h>
 #include <superio/conf_mode.h>
-
+#include <superio/common/ssdt.h>
+#include <arch/acpi.h>
 #include "nct6791d.h"
 
-
 static void nct6791d_init(struct device *dev)
 {
 	if (!dev->enabled)
@@ -38,6 +38,27 @@ static void nct6791d_init(struct device *dev)
 	}
 }
 
+#if CONFIG(HAVE_ACPI_TABLES)
+/* Provide ACPI HIDs for generic Super I/O SSDT */
+static const char *nct6791d_acpi_hid(const struct device *dev)
+{
+	if ((dev->path.type != DEVICE_PATH_PNP) ||
+		(dev->path.pnp.port == 0) ||
+		((dev->path.pnp.device & 0xff) > NCT6791D_DS))
+		return NULL;
+
+	switch (dev->path.pnp.device & 0xff) {
+	case NCT6791D_SP1: /* falltrough */
+	case NCT6791D_SP2:
+		return ACPI_HID_COM;
+	case NCT6791D_KBC:
+		return ACPI_HID_KEYBOARD;
+	default:
+		return ACPI_HID_PNP;
+	}
+}
+#endif
+
 static struct device_operations ops = {
 	.read_resources   = pnp_read_resources,
 	.set_resources    = pnp_set_resources,
@@ -45,6 +66,11 @@ static struct device_operations ops = {
 	.enable           = pnp_alt_enable,
 	.init             = nct6791d_init,
 	.ops_pnp_mode     = &pnp_conf_mode_8787_aa,
+#if CONFIG(HAVE_ACPI_TABLES)
+	.acpi_fill_ssdt_generator = superio_common_fill_ssdt_generator,
+	.acpi_name = superio_common_ldn_acpi_name,
+	.acpi_hid = nct6791d_acpi_hid,
+#endif
 };
 
 static struct pnp_info pnp_dev_info[] = {
-- 
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