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media: i2c: max9286: Print power-up GMSL link configuration
The power-up GMSL link configuration is controlled by the HIM and BWS pins, whose state is reflected in register 0x1c. Print the detected power-up config in a debug message to help debugging. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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1 changed files with 13 additions and 10 deletions
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@ -1156,6 +1156,7 @@ static int max9286_setup(struct max9286_priv *priv)
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(2 << 6) | (1 << 4) | (0 << 2) | (3 << 0), /* 210x */
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(3 << 6) | (2 << 4) | (1 << 2) | (0 << 0), /* 3210 */
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};
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int cfg;
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/*
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* Set the I2C bus speed.
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@ -1177,21 +1178,23 @@ static int max9286_setup(struct max9286_priv *priv)
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max9286_set_video_format(priv, &max9286_default_format);
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max9286_set_fsync_period(priv);
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cfg = max9286_read(priv, 0x1c);
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if (cfg < 0)
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return cfg;
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dev_dbg(&priv->client->dev, "power-up config: %s immunity, %u-bit bus\n",
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cfg & MAX9286_HIGHIMM(0) ? "high" : "legacy",
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cfg & MAX9286_BWS ? 32 : cfg & MAX9286_HIBW ? 27 : 24);
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if (priv->bus_width) {
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int val;
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val = max9286_read(priv, 0x1c);
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if (val < 0)
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return val;
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val &= ~(MAX9286_HIBW | MAX9286_BWS);
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cfg &= ~(MAX9286_HIBW | MAX9286_BWS);
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if (priv->bus_width == 27)
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val |= MAX9286_HIBW;
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cfg |= MAX9286_HIBW;
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else if (priv->bus_width == 32)
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val |= MAX9286_BWS;
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cfg |= MAX9286_BWS;
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max9286_write(priv, 0x1c, val);
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max9286_write(priv, 0x1c, cfg);
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}
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/*
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