Re: [PATCH 08/11] platform/x86: intel_cht_int33fe: Provide software nodes for the devices

Andy Shevchenko
2019-04-08T16:09:15Z

On Wed, Apr 3, 2019 at 7:46 PM Heikki Krogerus
<heikki.krogerus@linux.intel.com> wrote:
>
> Software nodes provide two features that we will need later.
> 1) Software nodes can have references to other software nodes.
> 2) Software nodes can exist before a device entry is created.

> #include <linux/platform_device.h>
> #include <linux/regulator/consumer.h>
> #include <linux/slab.h>
> +#include <linux/pci.h>

I understand your attitude to ordering here, but we already have it
ordered, why not to keep it that way?

> -static struct i2c_client *cht_int33fe_find_max17047(void)
> -{
> - struct i2c_client *max17047 = NULL;
> -
> - i2c_for_each_dev(&max17047, cht_int33fe_check_for_max17047);
> - return max17047;
> -}

This sounds like a cleanup patch before actual change.
And I'm not sure, do we need to remove this function?

> +static int
> +cht_int33fe_max17047(struct device *dev, struct cht_int33fe_data *data)
> +{
> + struct fwnode_handle *fwnode = data->node[INT33FE_NODE_MAX17047];
> + struct i2c_client *max17047 = NULL;
> + struct i2c_board_info board_info;
> + int ret;
> +
> + i2c_for_each_dev(&max17047, cht_int33fe_check_for_max17047);
> + if (max17047) {
> + /* Pre-existing i2c-client for the max17047, add device-props */
> + max17047->dev.fwnode->secondary = fwnode;
> + /* And re-probe to get the new device-props applied. */
> + ret = device_reprobe(&max17047->dev);
> + if (ret)
> + dev_warn(dev, "Reprobing max17047 error: %d\n", ret);
> + return 0;
> + }
> +
> + memset(&board_info, 0, sizeof(board_info));
> + strlcpy(board_info.type, "max17047", I2C_NAME_SIZE);
> + board_info.dev_name = "max17047";
> + board_info.fwnode = fwnode;
> + data->max17047 = i2c_acpi_new_device(dev, 1, &board_info);
> + if (IS_ERR(data->max17047))
> + return PTR_ERR(data->max17047);
> +
> + return 0;
> +}

This looks like a split from the original code with some changes.
Perhaps, split patch first.

> /* Work around BIOS bug, see comment on cht_int33fe_find_max17047 */

After this patch, the comment here become outdated, care to fix?

> + ret = cht_int33fe_max17047(dev, data);

Seems like the verb is missed in the name of the function.

> + if (ret)
> + goto out_remove_nodes;

--
With Best Regards,
Andy Shevchenko