Re: [PATCH v3 05/13] usb: typec: ucsi_ccg: Add OF support

Heikki Krogerus
2022-11-16T12:54:42Z

On Mon, Nov 14, 2022 at 08:40:45PM +0800, Wayne Chang wrote:
> The change enables the device tree infrastructure support.
>
> Signed-off-by: Wayne Chang <waynec@nvidia.com>
> ---
> V2 -> V3:nothing has changed
> V1 -> V2:nothing has changed
> drivers/usb/typec/ucsi/ucsi_ccg.c | 9 ++++++++-
> 1 file changed, 8 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/usb/typec/ucsi/ucsi_ccg.c b/drivers/usb/typec/ucsi/ucsi_ccg.c
> index 835f1c4372ba..139707a2f3d6 100644
> --- a/drivers/usb/typec/ucsi/ucsi_ccg.c
> +++ b/drivers/usb/typec/ucsi/ucsi_ccg.c
> @@ -643,7 +643,7 @@ static int ccg_request_irq(struct ucsi_ccg *uc)
> {
> unsigned long flags = IRQF_ONESHOT;
>
> - if (!has_acpi_companion(uc->dev))
> + if (!dev_fwnode(uc->dev))
> flags |= IRQF_TRIGGER_HIGH;

Sorry, I had to double check this, and the above does not work after
all. In the function i2c_new_ccgx_ucsi() the device is given a fwnode
(of type software_node).

So that probable has to be changed to:

if (is_software_node(dev_fwnode(uc->dev)))
flags |= IRQF_TRIGGER_HIGH;

> return request_threaded_irq(uc->irq, NULL, ccg_irq_handler, flags, dev_name(uc->dev), uc);
> @@ -1427,6 +1427,12 @@ static void ucsi_ccg_remove(struct i2c_client *client)
> free_irq(uc->irq, uc);
> }
>
> +static const struct of_device_id ucsi_ccg_of_match_table[] = {
> + { .compatible = "cypress,cypd4226", },
> + { /* sentinel */ }
> +};
> +MODULE_DEVICE_TABLE(of, ucsi_ccg_of_match_table);
> +
> static const struct i2c_device_id ucsi_ccg_device_id[] = {
> {"ccgx-ucsi", 0},
> {}
> @@ -1481,6 +1487,7 @@ static struct i2c_driver ucsi_ccg_driver = {
> .pm = &ucsi_ccg_pm,
> .dev_groups = ucsi_ccg_groups,
> .acpi_match_table = amd_i2c_ucsi_match,
> + .of_match_table = ucsi_ccg_of_match_table,
> },
> .probe = ucsi_ccg_probe,
> .remove = ucsi_ccg_remove,

thanks,

--
heikki