Re: [PATCH V7 3/6] usb: typec: ucsi_ccg: Add OF support

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On 24/01/2023 11:50, Heikki Krogerus wrote:

...

Hi,

On Tue, Jan 24, 2023 at 11:43:15AM +0000, Jon Hunter wrote:
From: Wayne Chang <waynec@xxxxxxxxxx>

Add device-tree support for the Cypress CCG UCSI driver. The device-tree
binding for the Cypress CCG device uses the standard device-tree
'firmware-name' string property to indicate the firmware build that is
used.

The NVIDIA GPU I2C driver has been updated to use an ACPI string
property that is also named 'firmware-build' and given that this was the
only users of the 'ccgx,firmware-build' property, we can now remove
support for this legacy property.

Signed-off-by: Wayne Chang <waynec@xxxxxxxxxx>
Co-developed-by: Jon Hunter <jonathanh@xxxxxxxxxx>
Signed-off-by: Jon Hunter <jonathanh@xxxxxxxxxx>

You missed one nitpick in v6 - check below. But that's minor, so if
there's nothing else:

Reviewed-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>

---
V6 -> V7: removed 'ccgx,firmware-build' property
V5 -> V6: fixed compilation
V4 -> V5: add support for 'firmware-name'
V1 -> V4: nothing has changed

  drivers/usb/typec/ucsi/ucsi_ccg.c | 23 +++++++++++++++++++----
  1 file changed, 19 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/typec/ucsi/ucsi_ccg.c b/drivers/usb/typec/ucsi/ucsi_ccg.c
index 46441f1477f2..8f5ad2094f26 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;
return request_threaded_irq(uc->irq, NULL, ccg_irq_handler, flags, dev_name(uc->dev), uc);
@@ -1342,6 +1342,7 @@ static int ucsi_ccg_probe(struct i2c_client *client)
  {
  	struct device *dev = &client->dev;
  	struct ucsi_ccg *uc;
+	const char *fw_name;
  	int status;
uc = devm_kzalloc(dev, sizeof(*uc), GFP_KERNEL);
@@ -1357,9 +1358,16 @@ static int ucsi_ccg_probe(struct i2c_client *client)
  	INIT_WORK(&uc->pm_work, ccg_pm_workaround_work);
/* Only fail FW flashing when FW build information is not provided */
-	status = device_property_read_u16(dev, "ccgx,firmware-build",
-					  &uc->fw_build);
-	if (status)
+	status = device_property_read_string(dev, "firmware-name",
+					     &fw_name);

One line is enough:

	status = device_property_read_string(dev, "firmware-name", &fw_name);

Ah sorry yes I forgot this!

Jon

--
nvpublic



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