phy: sparx5-serdes: add skip_cmu_cfg check when configuring lanes

Add a check for skip_cmu_cfg when configuring the serdes lane.  All
individual serdeses are reset upon first configuration. Resetting the
serdes involves reconfiguring it with preset values. The serdesmode is
required to determine the clock-providing CMU, therefore make sure the
serdes is not reconfigured if the serdesmode is not set.

Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Link: https://lore.kernel.org/r/20230417180335.2787494-8-daniel.machon@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Daniel Machon 2023-04-17 20:03:35 +02:00 committed by Vinod Koul
parent 2db7289f59
commit 7a503071e0

View File

@ -1646,6 +1646,10 @@ static int sparx5_sd10g28_apply_params(struct sparx5_serdes_macro *macro,
u32 value, cmu_idx;
int err;
/* Do not configure serdes if CMU is not to be configured too */
if (params->skip_cmu_cfg)
return 0;
cmu_idx = sparx5_serdes_cmu_get(params->cmu_sel, lane_index);
err = sparx5_cmu_cfg(priv, cmu_idx);
if (err)
@ -2111,6 +2115,7 @@ static int sparx5_sd10g28_config(struct sparx5_serdes_macro *macro, bool reset)
.rxinvert = 1,
.txswing = 240,
.reg_rst = reset,
.skip_cmu_cfg = reset,
};
int err;