change system file

hc

2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771

 kernel/drivers/net/ethernet/qualcomm/qca_7k.c
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@@ -81,8 +81,8 @@
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 	return ret;
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 }
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-int
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-qcaspi_write_register(struct qcaspi *qca, u16 reg, u16 value)
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+static int
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+__qcaspi_write_register(struct qcaspi *qca, u16 reg, u16 value)
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 {
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 	__be16 tx_data[2];
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 	struct spi_transfer transfer[2];
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@@ -117,3 +117,33 @@
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 	return ret;
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 }
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+
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+int
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+qcaspi_write_register(struct qcaspi *qca, u16 reg, u16 value, int retry)
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+{
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+	int ret, i = 0;
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+	u16 confirmed;
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+
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+	do {
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+		ret = __qcaspi_write_register(qca, reg, value);
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+		if (ret)
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+			return ret;
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+
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+		if (!retry)
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+			return 0;
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+
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+		ret = qcaspi_read_register(qca, reg, &confirmed);
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+		if (ret)
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+			return ret;
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+
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+		ret = confirmed != value;
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+		if (!ret)
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+			return 0;
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+
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+		i++;
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+		qca->stats.write_verify_failed++;
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+
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+	} while (i <= retry);
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+
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+	return ret;
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+}