kernels: add linux-libre-aarch64

Some System On a Chip (SOC) have 64bit ARM CPUs that are also
capable of running arm 32bit applications.

Since:
- Parabola doesn't have an aarch64 package repository yet
- The devicetree of devices using such System On a Chip
  are not compiled when using the armv7 defconfig
- Drivers or other platform support code for such hardware
  might also not be compiled in with the armv7 defconfig
- This approach has already been tested with the linux-libre-x86_64
  kenrel

It's then a good idea to add support for such devices by adding
an arrch64 kernel as the maintenance and work is minimal.

The downside is that the external kernel modules that are either
compiled against the kernel or using DKMS will not work by default.

It's however still possible to compile them by hand by using
ARCH= and CROSS_COMPILE= as it is done for this kernel, so it
should be relatively easy to add support for the non-dkms modules.

As for DKMS, someone would need to look into it to understand how
to pass it the make flags (ARCH= and CROSS_COMPILE=) that are
required to automatically build modules.

Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>

1 files changed, 35 insertions, 0 deletions

diff --git a/kernels/linux-libre-arm64/0013-pinctrl-sunrisepoint-Add-missing-Interrupt-Status-re.patch b/kernels/linux-libre-arm64/0013-pinctrl-sunrisepoint-Add-missing-Interrupt-Status-re.patch
new file mode 100644
index 000000000..ca540525b
--- /dev/null
+++ b/kernels/linux-libre-arm64/0013-pinctrl-sunrisepoint-Add-missing-Interrupt-Status-re.patch
@@ -0,0 +1,35 @@
+From adb810e1819b859aec1f8eb4c5611bc6ebe82137 Mon Sep 17 00:00:00 2001
+From: Boyan Ding <boyan.j.ding@gmail.com>
+Date: Wed, 1 Jan 2020 11:44:49 -0800
+Subject: [PATCH 13/13] pinctrl: sunrisepoint: Add missing Interrupt Status
+ register offset
+
+Commit 179e5a6114cc ("pinctrl: intel: Remove default Interrupt Status
+offset") removes default interrupt status offset of GPIO controllers,
+with previous commits explicitly providing the previously default
+offsets. However, the is_offset value in SPTH_COMMUNITY is missing,
+preventing related irq from being properly detected and handled.
+
+Fixes: f702e0b93cdb ("pinctrl: sunrisepoint: Provide Interrupt Status register offset")
+Link: https://bugzilla.kernel.org/show_bug.cgi?id=205745
+Cc: stable@vger.kernel.org
+Signed-off-by: Boyan Ding <boyan.j.ding@gmail.com>
+---
+ drivers/pinctrl/intel/pinctrl-sunrisepoint.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/drivers/pinctrl/intel/pinctrl-sunrisepoint.c b/drivers/pinctrl/intel/pinctrl-sunrisepoint.c
+index 44d7f50bbc82..d936e7aa74c4 100644
+--- a/drivers/pinctrl/intel/pinctrl-sunrisepoint.c
++++ b/drivers/pinctrl/intel/pinctrl-sunrisepoint.c
+@@ -49,6 +49,7 @@
+ 		.padown_offset = SPT_PAD_OWN,		\
+ 		.padcfglock_offset = SPT_PADCFGLOCK,	\
+ 		.hostown_offset = SPT_HOSTSW_OWN,	\
++		.is_offset = SPT_GPI_IS,		\
+ 		.ie_offset = SPT_GPI_IE,		\
+ 		.pin_base = (s),			\
+ 		.npins = ((e) - (s) + 1),		\
+-- 
+2.24.1
+