mirror of https://gitee.com/openkylin/linux.git
i2c: designware: Move reg-space remapping into a dedicated function
This is a preparation patch before adding a quirk with custom registers map creation required for the Baikal-T1 System I2C support. Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
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@ -108,6 +108,15 @@ static void dw_i2c_plat_pm_cleanup(struct dw_i2c_dev *dev)
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pm_runtime_put_noidle(dev->dev);
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}
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static int dw_i2c_plat_request_regs(struct dw_i2c_dev *dev)
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{
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struct platform_device *pdev = to_platform_device(dev->dev);
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dev->base = devm_platform_ioremap_resource(pdev, 0);
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return PTR_ERR_OR_ZERO(dev->base);
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}
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static int dw_i2c_plat_probe(struct platform_device *pdev)
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{
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struct dw_i2c_platform_data *pdata = dev_get_platdata(&pdev->dev);
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@ -125,15 +134,14 @@ static int dw_i2c_plat_probe(struct platform_device *pdev)
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return -ENOMEM;
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dev->flags = (uintptr_t)device_get_match_data(&pdev->dev);
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dev->base = devm_platform_ioremap_resource(pdev, 0);
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if (IS_ERR(dev->base))
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return PTR_ERR(dev->base);
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dev->dev = &pdev->dev;
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dev->irq = irq;
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platform_set_drvdata(pdev, dev);
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ret = dw_i2c_plat_request_regs(dev);
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if (ret)
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return ret;
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dev->rst = devm_reset_control_get_optional_exclusive(&pdev->dev, NULL);
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if (IS_ERR(dev->rst))
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return PTR_ERR(dev->rst);
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