1 files changed, 90 insertions, 0 deletions

diff --git a/recipes-kernel/linux/linux-hierofalcon/412-2-styx-linux-tracking.git-390adff766de2d7117ec666674d114dfd5b5a911.patch b/recipes-kernel/linux/linux-hierofalcon/412-2-styx-linux-tracking.git-390adff766de2d7117ec666674d114dfd5b5a911.patch
new file mode 100644
index 0000000..20d6b7b
--- /dev/null
+++ b/recipes-kernel/linux/linux-hierofalcon/412-2-styx-linux-tracking.git-390adff766de2d7117ec666674d114dfd5b5a911.patch
@@ -0,0 +1,90 @@
+From c6824811936cbbdb9a13100b23b2f39b307b571f Mon Sep 17 00:00:00 2001
+From: Adrian Calianu <adrian.calianu@enea.com>
+Date: Mon, 10 Aug 2015 17:28:23 +0200
+Subject: [PATCH] Subject: [PATCH] ata: ahci_platform: Add ACPI _CLS matching
+
+Ported from 3.19 kernel:
+
+This patch adds ACPI supports for AHCI platform driver, which uses _CLS
+method to match the device.
+
+The following is an example of ASL structure in DSDT for a SATA controller,
+which contains _CLS package to be matched by the ahci_platform driver:
+
+  Device (AHC0) // AHCI Controller
+  {
+    Name(_HID, "AMDI0600")
+    Name (_CCA, 1)
+    Name (_CLS, Package (3)
+    {
+      0x01, // Base Class: Mass Storage
+      0x06, // Sub-Class: serial ATA
+      0x01, // Interface: AHCI
+    })
+    Name (_CRS, ResourceTemplate ()
+    {
+      Memory32Fixed (ReadWrite, 0xE0300000, 0x00010000)
+      Interrupt (ResourceConsumer, Level, ActiveHigh, Exclusive,,,) { 387 }
+    })
+  }
+
+Also, since ATA driver should not require PCI support for ATA_ACPI,
+this patch removes dependency in the driver/ata/Kconfig.
+
+Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
+
+Signed-off-by: Adrian Calianu <adrian.calianu@enea.com>
+---
+ drivers/ata/Kconfig         | 2 +-
+ drivers/ata/ahci_platform.c | 9 +++++++++
+ 2 files changed, 10 insertions(+), 1 deletion(-)
+
+diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
+index 9dca4b9..7954ea2 100644
+--- a/drivers/ata/Kconfig
++++ b/drivers/ata/Kconfig
+@@ -48,7 +48,7 @@ config ATA_VERBOSE_ERROR
+ 
+ config ATA_ACPI
+        bool "ATA ACPI Support"
+-       depends on ACPI && PCI
++       depends on ACPI
+        default y
+        help
+          This option adds support for ATA-related ACPI objects.
+diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c
+index 78d6ae0..c0c055d 100644
+--- a/drivers/ata/ahci_platform.c
++++ b/drivers/ata/ahci_platform.c
+@@ -20,6 +20,8 @@
+ #include <linux/platform_device.h>
+ #include <linux/libata.h>
+ #include <linux/ahci_platform.h>
++#include <linux/acpi.h>
++#include <linux/pci_ids.h>
+ #include "ahci.h"
+ 
+ #define DRV_NAME "ahci"
+@@ -78,12 +80,19 @@ static const struct of_device_id ahci_of_match[] = {
+ };
+ MODULE_DEVICE_TABLE(of, ahci_of_match);
+ 
++static const struct acpi_device_id ahci_acpi_match[] = {
++       { "", 0, PCI_CLASS_STORAGE_SATA_AHCI },
++          {},
++};
++MODULE_DEVICE_TABLE(acpi, ahci_acpi_match);
++
+ static struct platform_driver ahci_driver = {
+        .probe = ahci_probe,
+        .remove = ata_platform_remove_one,
+        .driver = {
+                .name = DRV_NAME,
+                .of_match_table = ahci_of_match,
++        .acpi_match_table = ahci_acpi_match,
+                .pm = &ahci_pm_ops,
+        },
+ };
+-- 
+1.9.1
+