kernel: add support MeigLink SLM828 modem

[openwrt/openwrt.git] / target / linux / generic / hack-5.15 / 795-backport-phylink_pcs-helpers.patch

diff --git a/target/linux/generic/hack-5.15/795-backport-phylink_pcs-helpers.patch b/target/linux/generic/hack-5.15/795-backport-phylink_pcs-helpers.patch
index 2ccdc905a5c71e0b3b197eb712c9f60421ed683b..33c5c271212a3dc20aa60f22ef1a56e382f7e75e 100644 (file)
--- a/target/linux/generic/hack-5.15/795-backport-phylink_pcs-helpers.patch
+++ b/target/linux/generic/hack-5.15/795-backport-phylink_pcs-helpers.patch
@@ -1,6 +1,23 @@
+From 027586ae8ecacff49757ed854c020f35d24a599c Mon Sep 17 00:00:00 2001
+From: Daniel Golle <daniel@makrotopia.org>
+Date: Sat, 11 Mar 2023 03:44:41 +0000
+Subject: [PATCH] generic: backport some phylink helper functions
+
+It isn't feasible to literally backport all upstream phylink_pcs changes
+down to Linux 5.15: It's just too many patches, and many downstream
+drivers and hacks are likely to break. We are too close to branching off
+to risk this, and it's also just too much work.
+Instead just add helper functions used by modern PCS drivers while keeping
+the original functions instact as well. While this may add a kilobyte or
+two of extra kernel size, it has the advantage that we get the best of both
+worlds: None of the existing codepaths are touched, but yet we have the
+option to backport singular improvements to Ethernet drivers where needed.
+
+Signed-off-by: Daniel Golle <daniel@makrotopia.org>
+
 --- a/include/linux/phylink.h
 +++ b/include/linux/phylink.h
-@@ -584,10 +584,37 @@ int phylink_speed_up(struct phylink *pl)
+@@ -600,10 +600,37 @@ int phylink_speed_up(struct phylink *pl)
  #define phylink_test(bm, mode)        __phylink_do_bit(test_bit, bm, mode)
  
  void phylink_set_port_modes(unsigned long *bits);
@@ -40,7 +57,7 @@
                                          const unsigned long *advertising);
 --- a/drivers/net/phy/phylink.c
 +++ b/drivers/net/phy/phylink.c
-@@ -885,7 +885,6 @@ static int phylink_change_inband_advert(
+@@ -931,7 +931,6 @@ static int phylink_change_inband_advert(
  
        return 0;
  }
@@ -48,7 +65,7 @@
  static void phylink_mac_pcs_get_state(struct phylink *pl,
                                      struct phylink_link_state *state)
  {
-@@ -2966,6 +2965,52 @@ void phylink_mii_c22_pcs_get_state(struc
+@@ -3014,6 +3013,52 @@ void phylink_mii_c22_pcs_get_state(struc
  EXPORT_SYMBOL_GPL(phylink_mii_c22_pcs_get_state);
  
  /**
@@ -101,7 +118,7 @@
   * phylink_mii_c22_pcs_set_advertisement() - configure the clause 37 PCS
   *    advertisement
   * @pcs: a pointer to a &struct mdio_device.
-@@ -3037,6 +3082,46 @@ int phylink_mii_c22_pcs_set_advertisemen
+@@ -3085,6 +3130,46 @@ int phylink_mii_c22_pcs_set_advertisemen
  EXPORT_SYMBOL_GPL(phylink_mii_c22_pcs_set_advertisement);
  
  /**