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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>
This commit is contained in:
Daniel Golle 2025-08-30 03:33:00 +01:00 committed by Jakub Kicinski
parent cb477c3051
commit 7a1eaef0a7
2 changed files with 19 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/net/dsa/lantiq/lantiq_gswip.c
View File

@ -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 = {

3
drivers/net/dsa/lantiq/lantiq_gswip.h
View File

@ -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 {