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i2c: bcm2835: Avoid clk stretch quirk for BCM2711
The I2C block on the BCM2711 isn't affected by the clk stretching bug. So there is no need to apply the corresponding quirk. Signed-off-by: Stefan Wahren <wahrenst@gmx.net> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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1 changed files with 5 additions and 3 deletions
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@ -12,6 +12,7 @@
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#include <linux/interrupt.h>
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#include <linux/io.h>
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#include <linux/module.h>
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#include <linux/of_device.h>
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#include <linux/platform_device.h>
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#include <linux/slab.h>
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@ -389,7 +390,7 @@ static const struct i2c_algorithm bcm2835_i2c_algo = {
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};
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/*
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* This HW was reported to have problems with clock stretching:
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* The BCM2835 was reported to have problems with clock stretching:
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* http://www.advamation.com/knowhow/raspberrypi/rpi-i2c-bug.html
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* https://www.raspberrypi.org/forums/viewtopic.php?p=146272
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*/
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@ -475,7 +476,7 @@ static int bcm2835_i2c_probe(struct platform_device *pdev)
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adap->algo = &bcm2835_i2c_algo;
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adap->dev.parent = &pdev->dev;
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adap->dev.of_node = pdev->dev.of_node;
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adap->quirks = &bcm2835_i2c_quirks;
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adap->quirks = of_device_get_match_data(&pdev->dev);
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bcm2835_i2c_writel(i2c_dev, BCM2835_I2C_C, 0);
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@ -501,7 +502,8 @@ static int bcm2835_i2c_remove(struct platform_device *pdev)
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}
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static const struct of_device_id bcm2835_i2c_of_match[] = {
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{ .compatible = "brcm,bcm2835-i2c" },
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{ .compatible = "brcm,bcm2711-i2c" },
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{ .compatible = "brcm,bcm2835-i2c", .data = &bcm2835_i2c_quirks },
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{},
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};
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MODULE_DEVICE_TABLE(of, bcm2835_i2c_of_match);
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