realtek: pcs: add SerDes probe hook

Add a per-SerDes probe hook to rtpcs_config, called once for each SerDes
during driver probe. This provides a place for variant-specific, one-time
per-SerDes initialization that doesn't fit into the existing controller-
level init hook — such as allocating per-lane regmap fields or assigning
per-SerDes metadata.

Add stub implementations for all variants for now. They will be used by
all variants in a subsequent comment. For RTL839x, reuse the existing
rtl839x_sds_init hook and move its call out of the global init.

Signed-off-by: Jonas Jelonek <jelonek.jonas@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/22941
Signed-off-by: Robert Marko <robimarko@gmail.com>

diff --git a/target/linux/realtek/files-6.18/drivers/net/pcs/pcs-rtl-otto.c b/target/linux/realtek/files-6.18/drivers/net/pcs/pcs-rtl-otto.c
index 3bfe8a47d7c7e1d48364890bd9aa8f4b8ea170ac..02cd0b70f3471a850b460b51c8b7163e7c8d84ba 100644 (file)
--- a/target/linux/realtek/files-6.18/drivers/net/pcs/pcs-rtl-otto.c
+++ b/target/linux/realtek/files-6.18/drivers/net/pcs/pcs-rtl-otto.c
@@ -244,6 +244,7 @@ struct rtpcs_config {
        const struct rtpcs_sds_ops *sds_ops;
        const struct rtpcs_sds_regs *sds_regs;
        int (*init)(struct rtpcs_ctrl *ctrl);
+       int (*sds_probe)(struct rtpcs_serdes *sds);
        int (*setup_serdes)(struct rtpcs_serdes *sds, enum rtpcs_sds_mode hw_mode);
 };
 
@@ -835,6 +836,11 @@ static int rtpcs_838x_sds_patch(struct rtpcs_serdes *sds,
        return 0;
 }
 
+static int rtpcs_838x_sds_probe(struct rtpcs_serdes *sds)
+{
+       return 0;
+}
+
 static int rtpcs_838x_init(struct rtpcs_ctrl *ctrl)
 {
        dev_dbg(ctrl->dev, "Init RTL838X PCS\n");
@@ -967,7 +973,7 @@ static int rtpcs_839x_sds_set_mode(struct rtpcs_serdes *sds,
                                 mode_val << shift);
 }
 
-static void rtpcs_839x_sds_init(struct rtpcs_serdes *sds)
+static int rtpcs_839x_sds_probe(struct rtpcs_serdes *sds)
 {
        bool is_even = sds->id % 2 == 0;
 
@@ -1084,9 +1090,6 @@ static void rtpcs_839x_sds_init(struct rtpcs_serdes *sds)
 
 static int rtpcs_839x_init(struct rtpcs_ctrl *ctrl)
 {
-       for (int sds_id = 0; sds_id < ctrl->cfg->serdes_count; sds_id++)
-               rtpcs_839x_sds_init(&ctrl->serdes[sds_id]);
-
        for (int sds_id = 0; sds_id < ctrl->cfg->serdes_count; sds_id++)
                rtpcs_839x_sds_reset(&ctrl->serdes[sds_id]);
 
@@ -3031,6 +3034,11 @@ skip_cali:
        return 0;
 }
 
+static int rtpcs_930x_sds_probe(struct rtpcs_serdes *sds)
+{
+       return 0;
+}
+
 /* RTL931X */
 
 /*
@@ -3920,6 +3928,11 @@ static int rtpcs_931x_init_mac_groups(struct rtpcs_ctrl *ctrl)
        return 0;
 }
 
+static int rtpcs_931x_sds_probe(struct rtpcs_serdes *sds)
+{
+       return 0;
+}
+
 static int rtpcs_931x_init(struct rtpcs_ctrl *ctrl)
 {
        int ret;
@@ -4175,6 +4188,10 @@ static int rtpcs_probe(struct platform_device *pdev)
                sds->id = i;
                sds->ops = ctrl->cfg->sds_ops;
                sds->regs = ctrl->cfg->sds_regs;
+
+               ret = ctrl->cfg->sds_probe(sds);
+               if (ret)
+                       return ret;
        }
 
        for_each_child_of_node(dev->of_node, child) {
@@ -4238,6 +4255,7 @@ static const struct rtpcs_config rtpcs_838x_cfg = {
        .sds_ops                = &rtpcs_838x_sds_ops,
        .sds_regs               = &rtpcs_838x_sds_regs,
        .init                   = rtpcs_838x_init,
+       .sds_probe              = rtpcs_838x_sds_probe,
        .setup_serdes           = rtpcs_838x_setup_serdes,
 };
 
@@ -4273,6 +4291,7 @@ static const struct rtpcs_config rtpcs_839x_cfg = {
        .sds_ops                = &rtpcs_839x_sds_ops,
        .sds_regs               = &rtpcs_839x_sds_regs,
        .init                   = rtpcs_839x_init,
+       .sds_probe              = rtpcs_839x_sds_probe,
        .setup_serdes           = rtpcs_839x_setup_serdes,
 };
 
@@ -4313,6 +4332,7 @@ static const struct rtpcs_config rtpcs_930x_cfg = {
        .sds_ops                = &rtpcs_930x_sds_ops,
        .sds_regs               = &rtpcs_930x_sds_regs,
        .init                   = rtpcs_93xx_init,
+       .sds_probe              = rtpcs_930x_sds_probe,
        .setup_serdes           = rtpcs_930x_setup_serdes,
 };
 
@@ -4352,6 +4372,7 @@ static const struct rtpcs_config rtpcs_931x_cfg = {
        .sds_ops                = &rtpcs_931x_sds_ops,
        .sds_regs               = &rtpcs_931x_sds_regs,
        .init                   = rtpcs_931x_init,
+       .sds_probe              = rtpcs_931x_sds_probe,
        .setup_serdes           = rtpcs_931x_setup_serdes,
 };