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realtek: pcs: add helpers for even, odd, neighbor SerDes

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Add dedicated helpers to get references to even, odd and neigbor SerDes
if needed. This should replace the various calculations scattered
throughout the code, providing a unified way to work with adjacent
SerDes.

Signed-off-by: Jonas Jelonek <jelonek.jonas@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/21146
Signed-off-by: Robert Marko <robimarko@gmail.com>
(cherry picked from commit 232c1fb14a)
This commit is contained in:
Jonas Jelonek 2025-12-13 10:16:21 +00:00 • committed by Robert Marko
parent 40201e7f73
commit 01cfdb1610
1 changed files with 21 additions and 0 deletions
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21
target/linux/realtek/files-6.12/drivers/net/pcs/pcs-rtl-otto.c
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@ -239,6 +239,27 @@ static int rtpcs_sds_modify(struct rtpcs_ctrl *ctrl, int sds, int page, int regn
mask, set);
}
__maybe_unused
static struct rtpcs_serdes *rtpcs_sds_get_even(struct rtpcs_serdes *sds)
{
u32 even_sds = sds->id & ~1;
return &sds->ctrl->serdes[even_sds];
}
__maybe_unused
static struct rtpcs_serdes *rtpcs_sds_get_odd(struct rtpcs_serdes *sds)
{
u32 odd_sds = sds->id | 1;
return &sds->ctrl->serdes[odd_sds];
}
__maybe_unused
static struct rtpcs_serdes *rtpcs_sds_get_neighbor(struct rtpcs_serdes *sds)
{
u32 nb_sds = sds->id ^ 1;
return &sds->ctrl->serdes[nb_sds];
}
static int rtpcs_regmap_read_bits(struct rtpcs_ctrl *ctrl, int base, int bithigh, int bitlow)
{
int offset = base + (bitlow / 32) * 4;