meta-lxatac-bsp: linux-lxatac: upgrade to 6.8

umpf tag is now: 6.8/customers/lxa/lxatac/20240321-1
The tag includes the following topic branches:

  - v6.8/topic/reproducible-build
  - v6.7/topic/net-ksz-switch
  - v6.8/topic/mmc-fix
  - v6.8/customers/lxa/lxatac

This means we got rid of two topic branches, thanks to Uwe's mainlining
efforts, but gained two new topic branches:

  - v6.7/topic/net-ksz-switch

    Fixes RGMII drive strength configuration on our ethernet switch,
    that we need for EMI reasons.
    This means we were able to drop our previous hack that sets the
    drive strength.

  - v6.8/topic/mmc-fix

    Fixes a regression in the MMC subsystem.

The linux-lxatac.bb has also changed a bit because umpf has started
setting the PV variable series.inc in a way that collided with our previous
definition.

Signed-off-by: Leonard Göhrs <[email protected]>

meta-lxatac-bsp/recipes-kernel/linux/files/patches/0002-lib-build_OID_registry-Don-t-mention-the-full-path-o.patch

@@ -0,0 +1,53 @@
+From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= <[email protected]>
+Date: Wed, 13 Mar 2024 22:19:56 +0100
+Subject: [PATCH] lib/build_OID_registry: Don't mention the full path of the
+ script in output
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This change strips the full path of the script generating
+lib/oid_registry_data.c to just lib/build_OID_registry. The motivation
+for this change is Yocto emitting a build warning
+
+	File /usr/src/debug/linux-lxatac/6.7-r0/lib/oid_registry_data.c in package linux-lxatac-src contains reference to TMPDIR [buildpaths]
+
+So this change brings us one step closer to make the build result
+reproducible independent of the build path.
+
+Forwarded: id:[email protected] (v2)
+Signed-off-by: Uwe Kleine-König <[email protected]>
+---
+ lib/build_OID_registry | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/lib/build_OID_registry b/lib/build_OID_registry
+index d7fc32ea8ac2..56d8bafeb848 100755
+--- a/lib/build_OID_registry
++++ b/lib/build_OID_registry
+@@ -8,6 +8,7 @@
+ #
+
+ use strict;
++use Cwd qw(abs_path);
+
+ my @names = ();
+ my @oids = ();
+@@ -17,6 +18,8 @@ if ($#ARGV != 1) {
+     exit(2);
+ }
+
++my $abs_srctree = abs_path($ENV{'srctree'});
++
+ #
+ # Open the file to read from
+ #
+@@ -35,7 +38,7 @@ close IN_FILE || die;
+ #
+ open C_FILE, ">$ARGV[1]" or die;
+ print C_FILE "/*\n";
+-print C_FILE " * Automatically generated by ", $0, ".  Do not edit\n";
++print C_FILE " * Automatically generated by ", $0 =~ s#^\Q$abs_srctree/\E##r, ".  Do not edit\n";
+ print C_FILE " */\n";
+
+ #

meta-lxatac-bsp/recipes-kernel/linux/files/patches/0003-tty-vt-conmakehash-Don-t-mention-the-full-path-of-th.patch

@@ -0,0 +1,63 @@
+From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= <[email protected]>
+Date: Mon, 11 Mar 2024 12:25:09 +0100
+Subject: [PATCH] tty: vt: conmakehash: Don't mention the full path of the
+ input in output
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This change strips $abs_srctree of the input file containing the
+character mapping table in the generated output. The motivation for this
+change is Yocto emitting a build warning
+
+        WARNING: linux-lxatac-6.7-r0 do_package_qa: QA Issue: File /usr/src/debug/linux-lxatac/6.7-r0/drivers/tty/vt/consolemap_deftbl.c in package linux-lxatac-src contains reference to TMPDIR
+
+So this change brings us one step closer to make the build result
+reproducible independent of the build path.
+
+Forwarded: https://lore.kernel.org/lkml/[email protected]
+Signed-off-by: Uwe Kleine-König <[email protected]>
+---
+ drivers/tty/vt/conmakehash.c | 15 +++++++++++++--
+ 1 file changed, 13 insertions(+), 2 deletions(-)
+
+diff --git a/drivers/tty/vt/conmakehash.c b/drivers/tty/vt/conmakehash.c
+index cddd789fe46e..dc2177fec715 100644
+--- a/drivers/tty/vt/conmakehash.c
++++ b/drivers/tty/vt/conmakehash.c
+@@ -76,7 +76,8 @@ static void addpair(int fp, int un)
+ int main(int argc, char *argv[])
+ {
+   FILE *ctbl;
+-  char *tblname;
++  const char *tblname, *rel_tblname;
++  const char *abs_srctree;
+   char buffer[65536];
+   int fontlen;
+   int i, nuni, nent;
+@@ -101,6 +102,16 @@ int main(int argc, char *argv[])
+ 	}
+     }
+
++  abs_srctree = getenv("abs_srctree");
++  if (abs_srctree && !strncmp(abs_srctree, tblname, strlen(abs_srctree)))
++    {
++      rel_tblname = tblname + strlen(abs_srctree);
++      while (*rel_tblname == '/')
++	++rel_tblname;
++    }
++  else
++    rel_tblname = tblname;
++
+   /* For now we assume the default font is always 256 characters. */
+   fontlen = 256;
+
+@@ -253,7 +264,7 @@ int main(int argc, char *argv[])
+ #include <linux/types.h>\n\
+ \n\
+ u8 dfont_unicount[%d] = \n\
+-{\n\t", argv[1], fontlen);
++{\n\t", rel_tblname, fontlen);
+
+   for ( i = 0 ; i < fontlen ; i++ )
+     {

meta-lxatac-bsp/recipes-kernel/linux/files/patches/0101-net-dsa-microchip-make-sure-drive-strength-configura.patch

@@ -0,0 +1,56 @@
+From: Oleksij Rempel <[email protected]>
+Date: Mon, 4 Mar 2024 14:31:47 +0100
+Subject: [PATCH] net: dsa: microchip: make sure drive strength configuration
+ is not lost by soft reset
+
+This driver has two separate reset sequence in different places:
+- gpio/HW reset on start of ksz_switch_register()
+- SW reset on start of ksz_setup()
+
+The second one will overwrite drive strength configuration made in the
+ksz_switch_register().
+
+To fix it, move ksz_parse_drive_strength() from ksz_switch_register() to
+ksz_setup().
+
+Fixes: d67d7247f641 ("net: dsa: microchip: Add drive strength configuration")
+Signed-off-by: Oleksij Rempel <[email protected]>
+---
+ drivers/net/dsa/microchip/ksz_common.c | 10 ++++++----
+ 1 file changed, 6 insertions(+), 4 deletions(-)
+
+diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
+index 245dfb7a7a31..25a49708f484 100644
+--- a/drivers/net/dsa/microchip/ksz_common.c
++++ b/drivers/net/dsa/microchip/ksz_common.c
+@@ -2185,6 +2185,8 @@ static int ksz_pirq_setup(struct ksz_device *dev, u8 p)
+ 	return ksz_irq_common_setup(dev, pirq);
+ }
+
++static int ksz_parse_drive_strength(struct ksz_device *dev);
++
+ static int ksz_setup(struct dsa_switch *ds)
+ {
+ 	struct ksz_device *dev = ds->priv;
+@@ -2206,6 +2208,10 @@ static int ksz_setup(struct dsa_switch *ds)
+ 		return ret;
+ 	}
+
++	ret = ksz_parse_drive_strength(dev);
++	if (ret)
++		return ret;
++
+ 	/* set broadcast storm protection 10% rate */
+ 	regmap_update_bits(ksz_regmap_16(dev), regs[S_BROADCAST_CTRL],
+ 			   BROADCAST_STORM_RATE,
+@@ -4242,10 +4248,6 @@ int ksz_switch_register(struct ksz_device *dev)
+ 	for (port_num = 0; port_num < dev->info->port_cnt; ++port_num)
+ 		dev->ports[port_num].interface = PHY_INTERFACE_MODE_NA;
+ 	if (dev->dev->of_node) {
+-		ret = ksz_parse_drive_strength(dev);
+-		if (ret)
+-			return ret;
+-
+ 		ret = of_get_phy_mode(dev->dev->of_node, &interface);
+ 		if (ret == 0)
+ 			dev->compat_interface = interface;