[PATCH v2 1/1] x86: tangier: acpi: Add GPIO card detection to SDHCI #2

[Andy Shevchenko]

On Intel Tangier the SDHCI #2 provides SD card connection.
Add GPIO card detection for it.

Fixes: 39665beed6f7 ("x86: tangier: Enable ACPI support for Intel Tangier")
BugLink: https://github.com/edison-fw/meta-intel-edison/issues/135
Signed-off-by: Andy Shevchenko <andriy.shevchenko at linux.intel.com>
Acked-by: Bin Meng <bmeng.cn at gmail.com>
---
v2: switched to pull up bias (WA against some PCBs), added tag (Bin)
 .../asm/arch-tangier/acpi/southcluster.asl    | 32 +++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/arch/x86/include/asm/arch-tangier/acpi/southcluster.asl b/arch/x86/include/asm/arch-tangier/acpi/southcluster.asl
index 01077293bb91..e6bbef108a7b 100644
--- a/arch/x86/include/asm/arch-tangier/acpi/southcluster.asl
+++ b/arch/x86/include/asm/arch-tangier/acpi/southcluster.asl
@@ -97,6 +97,38 @@ Device (PCI0)
         }
     }
 
+    Device (SDHB)
+    {
+        Name (_ADR, 0x00010002)
+        Name (_DEP, Package ()
+        {
+            GPIO
+        })
+
+        Name (RBUF, ResourceTemplate()
+        {
+            GpioInt(Edge, ActiveBoth, SharedAndWake, PullUp, 10000,
+                "\\_SB.PCI0.GPIO", 0, ResourceConsumer, , ) { 77 }
+        })
+
+        Method (_CRS, 0, Serialized)
+        {
+            Return (RBUF)
+        }
+
+        Name (_DSD, Package () {
+            ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
+            Package () {
+                Package () { "cd-gpios", Package () { ^SDHB, 0, 0, 0 } },
+            }
+        })
+
+        Method (_STA)
+        {
+            Return (STA_VISIBLE)
+        }
+    }
+
     Device (SDHC)
     {
         Name (_ADR, 0x00010003)
-- 
2.33.0