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realtek: pcs: introduce per-variant SerDes activate helpers

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Mirror of the previous sds_deactivate commit: add rtpcs_{838x,931x}_sds_activate()
helpers that each wrap the variant-specific "bring the SerDes back to operational"
block-power call at the end of setup_serdes, and replace the inline call.

 - 838x: wraps rtpcs_838x_sds_power(sds, true)
 - 931x: wraps rtpcs_931x_sds_power(sds, true)

RTL839x and RTL930x are intentionally not given an activate helper in this
commit:

 - RTL839x calls rtpcs_839x_sds_reset() at the end of setup_serdes. That is
   a reset pulse whose internals (per-type 10G/5G analog sequences, internal
   REG3 0x7146 -> 0x7106 dance) are not yet fully characterized. Aliasing
   it as _activate would misrepresent the function.
 - RTL930x has no separate activation step: rtpcs_930x_sds_set_mode(sds,
   hw_mode) is what commits the new mode and is intended to be surfaced
   as its own "set mode" phase in a later commit rather than hidden inside
   a variant-specific _activate wrapper.

Both variants will be revisited when their respective phases are clarified.
This commit is a pure refactor, no behavioural change.

Link: https://github.com/openwrt/openwrt/pull/23513
Signed-off-by: Jonas Jelonek <jelonek.jonas@gmail.com>
This commit is contained in:
Jonas Jelonek
2026-04-22 13:44:06 +00:00
parent c484f93a0b
commit c2f129599e
1 changed files with 12 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
target/linux/realtek/files-6.18/drivers/net/pcs/pcs-rtl-otto.c
+12 -2
View File
@@ -826,6 +826,11 @@ static int rtpcs_838x_sds_deactivate(struct rtpcs_serdes *sds)
return rtpcs_838x_sds_power(sds, false);
}
static int rtpcs_838x_sds_activate(struct rtpcs_serdes *sds)
{
return rtpcs_838x_sds_power(sds, true);
}
/*
* RTL838X wrapper: after setting the MAC mode, SerDes 4-5 also need the
* companion INT_MODE_CTRL field written.
@@ -953,7 +958,7 @@ static int rtpcs_838x_setup_serdes(struct rtpcs_serdes *sds,
/* release reset */
rtpcs_sds_write(sds, 0, 3, 0x7106);
rtpcs_838x_sds_power(sds, true);
rtpcs_838x_sds_activate(sds);
/*
* Run a switch queue reset after the first start of a SerDes. This recovers ports that
@@ -3258,6 +3263,11 @@ static int rtpcs_931x_sds_deactivate(struct rtpcs_serdes *sds)
return rtpcs_931x_sds_set_mode(sds, RTPCS_SDS_MODE_OFF);
}
static int rtpcs_931x_sds_activate(struct rtpcs_serdes *sds)
{
return rtpcs_931x_sds_power(sds, true);
}
static void rtpcs_931x_sds_reset(struct rtpcs_serdes *sds)
{
u32 o_mode, f_bit;
@@ -3832,7 +3842,7 @@ static int rtpcs_931x_setup_serdes(struct rtpcs_serdes *sds,
return ret;
}
rtpcs_931x_sds_power(sds, true);
rtpcs_931x_sds_activate(sds);
ret = rtpcs_931x_sds_set_mode(sds, hw_mode);
if (ret < 0)