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gpio: gpio-mm-lantiq: Use of_property_read_u32
Instead of parsing manually the shadow content, use the much simpler helper of_property_read_u32. Cc: Alexandre Courbot <[email protected]> Cc: Grant Likely <[email protected]> Cc: Rob Herring <[email protected]> Cc: John Crispin <[email protected]> Cc: [email protected] Cc: Mark Rutland <[email protected]> Signed-off-by: Ricardo Ribalda Delgado <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
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1 changed files with 3 additions and 4 deletions
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@ -105,7 +105,7 @@ static void ltq_mm_save_regs(struct of_mm_gpio_chip *mm_gc)
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static int ltq_mm_probe(struct platform_device *pdev)
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{
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struct ltq_mm *chip;
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const __be32 *shadow;
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u32 shadow;
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chip = devm_kzalloc(&pdev->dev, sizeof(*chip), GFP_KERNEL);
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if (!chip)
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@ -117,9 +117,8 @@ static int ltq_mm_probe(struct platform_device *pdev)
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chip->mmchip.save_regs = ltq_mm_save_regs;
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/* store the shadow value if one was passed by the devicetree */
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shadow = of_get_property(pdev->dev.of_node, "lantiq,shadow", NULL);
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if (shadow)
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chip->shadow = be32_to_cpu(*shadow);
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if (!of_property_read_u32(pdev->dev.of_node, "lantiq,shadow", &shadow))
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chip->shadow = shadow;
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return of_mm_gpiochip_add(pdev->dev.of_node, &chip->mmchip);
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}
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