net: dsa: lantiq_gswip: support model-specific mac_select_pcs()

Call mac_select_pcs() function if provided in struct gswip_hwinfo.
The MaxLinear GSW1xx series got one port wired to a SerDes PCS and
PHY which can do 1000Base-X, 2500Base-X and SGMII. Support for the
SerDes port will be provided using phylink_pcs, so provide a
convenient way for mac_select_pcs() to differ based on the hardware
model.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Hauke Mehrtens <hauke@hauke-m.de>
Link: https://patch.msgid.link/7668666aa51e43e7f2a6cbcf36eb5a0a3020998f.1756520811.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/dsa/lantiq/lantiq_gswip.c b/drivers/net/dsa/lantiq/lantiq_gswip.c
index 67919c3935e463b7d2967d945fb2020a8371b8a9..acb6996356e9efe21f96f6bd44ff2cfcc18b1377 100644 (file)
--- a/drivers/net/dsa/lantiq/lantiq_gswip.c
+++ b/drivers/net/dsa/lantiq/lantiq_gswip.c
@@ -1592,10 +1592,23 @@ static int gswip_get_sset_count(struct dsa_switch *ds, int port, int sset)
        return ARRAY_SIZE(gswip_rmon_cnt);
 }
 
+static struct phylink_pcs *gswip_phylink_mac_select_pcs(struct phylink_config *config,
+                                                       phy_interface_t interface)
+{
+       struct dsa_port *dp = dsa_phylink_to_port(config);
+       struct gswip_priv *priv = dp->ds->priv;
+
+       if (priv->hw_info->mac_select_pcs)
+               return priv->hw_info->mac_select_pcs(config, interface);
+
+       return NULL;
+}
+
 static const struct phylink_mac_ops gswip_phylink_mac_ops = {
-       .mac_config     = gswip_phylink_mac_config,
-       .mac_link_down  = gswip_phylink_mac_link_down,
-       .mac_link_up    = gswip_phylink_mac_link_up,
+       .mac_config             = gswip_phylink_mac_config,
+       .mac_link_down          = gswip_phylink_mac_link_down,
+       .mac_link_up            = gswip_phylink_mac_link_up,
+       .mac_select_pcs         = gswip_phylink_mac_select_pcs,
 };
 
 static const struct dsa_switch_ops gswip_switch_ops = {

diff --git a/drivers/net/dsa/lantiq/lantiq_gswip.h b/drivers/net/dsa/lantiq/lantiq_gswip.h
index 620c2d560cbe18732fe6dc5ed4b6480d71083f18..19bbe6fddf045ac908af95a56ff863ff23aa6520 100644 (file)
--- a/drivers/net/dsa/lantiq/lantiq_gswip.h
+++ b/drivers/net/dsa/lantiq/lantiq_gswip.h
@@ -4,6 +4,7 @@
 
 #include <linux/clk.h>
 #include <linux/mutex.h>
+#include <linux/phylink.h>
 #include <linux/platform_device.h>
 #include <linux/regmap.h>
 #include <linux/reset.h>
@@ -237,6 +238,8 @@ struct gswip_hw_info {
        enum dsa_tag_protocol tag_protocol;
        void (*phylink_get_caps)(struct dsa_switch *ds, int port,
                                 struct phylink_config *config);
+       struct phylink_pcs *(*mac_select_pcs)(struct phylink_config *config,
+                                             phy_interface_t interface);
 };
 
 struct gswip_gphy_fw {