diff --git a/.SRCINFO b/.SRCINFO
index 9387e69..c122aa5 100644
--- a/.SRCINFO
+++ b/.SRCINFO
@@ -1,8 +1,8 @@
 # Generated by mksrcinfo v8
-# Sat Jan 16 16:46:21 UTC 2016
+# Wed Jan 20 02:11:11 UTC 2016
 pkgbase = linux-vfio
 	pkgver = 4.4
-	pkgrel = 3
+	pkgrel = 4
 	url = http://www.kernel.org/
 	arch = i686
 	arch = x86_64
@@ -19,6 +19,8 @@ pkgbase = linux-vfio
 	source = config.x86_64
 	source = linux.preset
 	source = change-default-console-loglevel.patch
+	source = 0001-sdhci-revert.patch
+	source = tpmdd-devel-v3-base-platform-fix-binding-for-drivers-without-probe-callback.patch
 	source = override_for_missing_acs_capabilities.patch
 	source = i915_317.patch
 	sha256sums = 401d7c8fef594999a460d10c72c5a94e9c2e1022f16795ec51746b0d165418b2
@@ -27,6 +29,8 @@ pkgbase = linux-vfio
 	sha256sums = ddeadf2910deb0803d4d4920c4dc7f07d3fb63bca564073aeb5f6181358f20d7
 	sha256sums = f0d90e756f14533ee67afda280500511a62465b4f76adcc5effa95a40045179c
 	sha256sums = 1256b241cd477b265a3c2d64bdc19ffe3c9bbcee82ea3994c590c2c76e767d99
+	sha256sums = 5313df7cb5b4d005422bd4cd0dae956b2dadba8f3db904275aaf99ac53894375
+	sha256sums = ab57037ecee0a425c612babdff47c831378bca0bff063a1308599989a350226d
 	sha256sums = 975f79348119bfba8dd972a9fbfe6b38484c45bfd228f2f6d48a0c02426ba149
 	sha256sums = b5a8eebbe75e1801b35d2f5197eba6f57123c224e09e97a7eb526f1fa58ac918
 
diff --git a/0001-sdhci-revert.patch b/0001-sdhci-revert.patch
new file mode 100644
index 0000000..5d4afd6
--- /dev/null
+++ b/0001-sdhci-revert.patch
@@ -0,0 +1,25 @@
+index 2cadf08..b48565e 100644
+--- a/drivers/mmc/host/sdhci.c
++++ b/drivers/mmc/host/sdhci.c
+@@ -1895,9 +1895,9 @@ static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode)
+ 		tuning_count = host->tuning_count;
+ 
+ 	/*
+-	 * The Host Controller needs tuning only in case of SDR104 mode
+-	 * and for SDR50 mode when Use Tuning for SDR50 is set in the
+-	 * Capabilities register.
++	 * The Host Controller needs tuning in case of SDR104 and DDR50
++	 * mode, and for SDR50 mode when Use Tuning for SDR50 is set in
++	 * the Capabilities register.
+ 	 * If the Host Controller supports the HS200 mode then the
+ 	 * tuning function has to be executed.
+ 	 */
+@@ -1917,6 +1917,7 @@ static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode)
+ 		break;
+ 
+ 	case MMC_TIMING_UHS_SDR104:
++	case MMC_TIMING_UHS_DDR50:
+ 		break;
+ 
+ 	case MMC_TIMING_UHS_SDR50:
+generated by cgit v0.11.2 at 2016-01-01 22:11:38 (GMT)
diff --git a/PKGBUILD b/PKGBUILD
index 4172665..3c54c06 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -3,7 +3,7 @@
 pkgbase=linux-vfio
 _srcname=linux-4.4
 pkgver=4.4
-pkgrel=3
+pkgrel=4
 arch=('i686' 'x86_64')
 url="http://www.kernel.org/"
 license=('GPL2')
@@ -18,6 +18,8 @@ source=("https://www.kernel.org/pub/linux/kernel/v4.x/${_srcname}.tar.xz"
         # standard config files for mkinitcpio ramdisk
         'linux.preset'
         'change-default-console-loglevel.patch'
+        '0001-sdhci-revert.patch'
+        'tpmdd-devel-v3-base-platform-fix-binding-for-drivers-without-probe-callback.patch'
         'override_for_missing_acs_capabilities.patch'
         'i915_317.patch')
 sha256sums=('401d7c8fef594999a460d10c72c5a94e9c2e1022f16795ec51746b0d165418b2'
@@ -26,6 +28,8 @@ sha256sums=('401d7c8fef594999a460d10c72c5a94e9c2e1022f16795ec51746b0d165418b2'
             'ddeadf2910deb0803d4d4920c4dc7f07d3fb63bca564073aeb5f6181358f20d7'
             'f0d90e756f14533ee67afda280500511a62465b4f76adcc5effa95a40045179c'
             '1256b241cd477b265a3c2d64bdc19ffe3c9bbcee82ea3994c590c2c76e767d99'
+            '5313df7cb5b4d005422bd4cd0dae956b2dadba8f3db904275aaf99ac53894375'
+            'ab57037ecee0a425c612babdff47c831378bca0bff063a1308599989a350226d'
             '975f79348119bfba8dd972a9fbfe6b38484c45bfd228f2f6d48a0c02426ba149'
             'b5a8eebbe75e1801b35d2f5197eba6f57123c224e09e97a7eb526f1fa58ac918')
 validpgpkeys=(
@@ -44,6 +48,15 @@ prepare() {
   # add latest fixes from stable queue, if needed
   # http://git.kernel.org/?p=linux/kernel/git/stable/stable-queue.git
   
+  # revert http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9faac7b95ea4f9e83b7a914084cc81ef1632fd91
+  # fixes #47778 sdhci broken on some boards
+  # https://bugzilla.kernel.org/show_bug.cgi?id=106541
+  patch -Rp1 -i "${srcdir}/0001-sdhci-revert.patch"
+
+  # fixes #47805 kernel panics on platform modules
+  # https://bugzilla.kernel.org/show_bug.cgi?id=110751
+  patch -Np1 -i "${srcdir}/tpmdd-devel-v3-base-platform-fix-binding-for-drivers-without-probe-callback.patch"
+
   # set DEFAULT_CONSOLE_LOGLEVEL to 4 (same value as the 'quiet' kernel param)
   # remove this when a Kconfig knob is made available by upstream
   # (relevant patch sent upstream: https://lkml.org/lkml/2011/7/26/227)
diff --git a/tpmdd-devel-v3-base-platform-fix-binding-for-drivers-without-probe-callback.patch b/tpmdd-devel-v3-base-platform-fix-binding-for-drivers-without-probe-callback.patch
new file mode 100644
index 0000000..691ab79
--- /dev/null
+++ b/tpmdd-devel-v3-base-platform-fix-binding-for-drivers-without-probe-callback.patch
@@ -0,0 +1,24 @@
+diff --git a/drivers/base/platform.c b/drivers/base/platform.c
+index 1dd6d3b..176b59f 100644
+--- a/drivers/base/platform.c
++++ b/drivers/base/platform.c
+@@ -513,10 +513,15 @@ static int platform_drv_probe(struct device *_dev)
+ 		return ret;
+ 
+ 	ret = dev_pm_domain_attach(_dev, true);
+-	if (ret != -EPROBE_DEFER && drv->probe) {
+-		ret = drv->probe(dev);
+-		if (ret)
+-			dev_pm_domain_detach(_dev, true);
++	if (ret != -EPROBE_DEFER) {
++		if (drv->probe) {
++			ret = drv->probe(dev);
++			if (ret)
++				dev_pm_domain_detach(_dev, true);
++		} else {
++			/* don't fail if just dev_pm_domain_attach failed */
++			ret = 0;
++		}
+ 	}
+ 
+ 	if (drv->prevent_deferred_probe && ret == -EPROBE_DEFER) {