Re: [PATCH v2] gpio: tegra186: Add ACPI support
From: Akhil R <akhilrajeev@nvidia.com>
Date: 2021-06-30 17:47:32
Also in:
linux-tegra, lkml
quoted
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What about doing likegpio->secure = devm_platform_ioremap_resource_byname(pdev, "security");quoted
if (IS_ERR(gpio->secure)) gpio->secure = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(gpio->secure)) return PTR_ERR(gpio->secure); and similar for gpio->base?Wouldn't this cause a redundant check if it had already succeeded in getting the resource by name? Also, could it happen that if the device tree is incorrect, then one of the resource is fetched by name and other by the index, which I guess, would mess things up. Just my random thoughts, not sure if it is valid enough.quoted
Wouldn't the following be enough? - gpio->intc.name = pdev->dev.of_node->name; + gpio->intc.name = devm_kasprintf(&pdev->dev, "%pfw", dev_fwnode(&pdev->dev)); + if (!gpio->intc.name) +How about this way? I feel it would be right to add the OF functions conditionally.Looks okay, although I have a question here. + if (pdev->dev.of_node) { Do we really need this check at all? If the OF-node is NULL then it doesn't matter if other fields are filled or not, correct? What you need is #ifdef CONFIG_OF_GPIO (IIRC the name correctly).quoted
+ gpio->gpio.of_node = pdev->dev.of_node; + gpio->gpio.of_gpio_n_cells = 2; + gpio->gpio.of_xlate = tegra186_gpio_of_xlate; + } + gpio->intc.name = gpio->soc->name;
Okay. It makes sense. Thanks Andy. I would make the changes and send out an updated patch. -- Best Regards, Akhil