linux-kernel - Re: [PATCH v2 1/1] usb: typec: ucsi

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Date:   Mon, 3 Oct 2022 11:55:27 +0300
From:   Heikki Krogerus <heikki.krogerus@...ux.intel.com>
To:     Wayne Chang <waynec@...dia.com>
Cc:     gregkh@...uxfoundation.org, Sanket.Goswami@....com,
        singhanc@...dia.com, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/1] usb: typec: ucsi_ccg: Add OF support

On Wed, Sep 28, 2022 at 11:47:32PM +0800, Wayne Chang wrote:
> The change enables the device tree infrastructure support on Cypress
> cypd4226.

So does this patch depend on that other patch where you introduce
the quirk that disables alt modes based on the firmware version
(Disable UCSI ALT support on Tegra)?

thanks,

> Signed-off-by: Wayne Chang <waynec@...dia.com>
> ---
> V1 -> V2: updated the change with dev_fwnode instead of device node
>  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 5c0bf48be766..7e034d765a0e 100644
> --- a/drivers/usb/typec/ucsi/ucsi_ccg.c
> +++ b/drivers/usb/typec/ucsi/ucsi_ccg.c
> @@ -631,7 +631,7 @@ 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;
>  
>  	return request_threaded_irq(uc->irq, NULL, ccg_irq_handler, flags, dev_name(uc->dev), uc);
> @@ -1417,6 +1417,12 @@ static int ucsi_ccg_remove(struct i2c_client *client)
>  	return 0;
>  }
>  
> +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},
>  	{}
> @@ -1471,6 +1477,7 @@ 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,
> -- 
> 2.25.1

-- 
heikki