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Subject[PATCH] net: phy: adin: add signal mean square error registers to phy-stats
Date
When the link is up on the ADIN1300/ADIN1200, the signal quality on each
pair is indicated in the mean square error register for each pair (MSE_A,
MSE_B, MSE_C, and MSE_D registers, Address 0x8402 to Address 0x8405,
Bits[7:0]).

These values can be useful for some industrial applications.

This change implements support for these registers using the PHY
statistics mechanism.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
---
drivers/net/phy/adin.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/net/phy/adin.c b/drivers/net/phy/adin.c
index 55a0b91816e2..e4441bba98c3 100644
--- a/drivers/net/phy/adin.c
+++ b/drivers/net/phy/adin.c
@@ -184,6 +184,7 @@ struct adin_hw_stat {
const char *string;
u16 reg1;
u16 reg2;
+ bool do_not_accumulate;
};

static const struct adin_hw_stat adin_hw_stats[] = {
@@ -197,6 +198,10 @@ static const struct adin_hw_stat adin_hw_stats[] = {
{ "odd_preamble_packet_count", 0x9412 },
{ "dribble_bits_frames_count", 0x9413 },
{ "false_carrier_events_count", 0x9414 },
+ { "signal_mean_square_error_a", 0x8402, 0, true },
+ { "signal_mean_square_error_b", 0x8403, 0, true },
+ { "signal_mean_square_error_c", 0x8404, 0, true },
+ { "signal_mean_square_error_d", 0x8405, 0, true },
};

/**
@@ -757,7 +762,10 @@ static u64 adin_get_stat(struct phy_device *phydev, int i)
val = (ret & 0xffff);
}

- priv->stats[i] += val;
+ if (stat->do_not_accumulate)
+ priv->stats[i] = val;
+ else
+ priv->stats[i] += val;

return priv->stats[i];
}
--
2.27.0
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