net: dsa: mt7530: replace mt7530_read with regmap_read

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Replace all mt7530_read() calls with direct regmap_read() calls and
remove the wrapper function. The wrapper returned 0 on failed reads;
preserve that behaviour by zeroing the read-back buffer at the start of
mt7530_regmap_read(), so callers that do not check the return code keep
seeing a deterministic value. The WARN_ON_ONCE error logging is dropped.

Most callsites follow the val = mt7530_read(priv, reg) pattern and are
converted mechanically using the following semantic patch:

@@
expression priv, reg;
identifier val;
@@
-val = mt7530_read(priv, reg);
+regmap_read(priv->regmap, reg, &val);

Remaining inline uses are converted by hand.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/a1dc338ae368554ec6faa974df7ba6f3660ae12b.1788190568.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

...

This commit is contained in:

Daniel Golle 2026-08-31 16:38:35 +01:00 • committed by Jakub Kicinski

parent f6692ee8de

commit 10d9d8328e

2 changed files with 60 additions and 56 deletions

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3

drivers/net/dsa/mt7530-mdio.c

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119

drivers/net/dsa/mt7530.c

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