| Message ID | 20230119121639.226729-4-jonathanh@nvidia.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Add device-tree support for Cypress CYPD4226 | expand |
On Thu, Jan 19, 2023 at 12:16:36PM +0000, Jon Hunter wrote: > From: Wayne Chang <waynec@nvidia.com> > > 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. For ACPI a 16-bit property named 'ccgx,firmware-build' is used and > if this is not found fall back to the 'firmware-name' property. > > Signed-off-by: Wayne Chang <waynec@nvidia.com> > Co-developed-by: Jon Hunter <jonathanh@nvidia.com> > Signed-off-by: Jon Hunter <jonathanh@nvidia.com> > --- > 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, 21 insertions(+), 2 deletions(-) > > diff --git a/drivers/usb/typec/ucsi/ucsi_ccg.c b/drivers/usb/typec/ucsi/ucsi_ccg.c > index 46441f1477f2..661a3988b39d 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); > @@ -1359,7 +1360,18 @@ static int ucsi_ccg_probe(struct i2c_client *client) > /* Only fail FW flashing when FW build information is not provided */ > status = device_property_read_u16(dev, "ccgx,firmware-build", > &uc->fw_build); You don't need this anymore. You already added the new property "firmware-name" to drivers/i2c/busses/i2c-nvidia-gpu.c. > - if (status) > + if (status) { > + status = device_property_read_string(dev, "firmware-name", > + &fw_name); > + if (!status) { > + if (!strcmp(fw_name, "nvidia,jetson-agx-xavier")) > + uc->fw_build = CCG_FW_BUILD_NVIDIA_TEGRA; > + else if (!strcmp(fw_name, "nvidia,gpu")) > + uc->fw_build = CCG_FW_BUILD_NVIDIA; > + } So this will already work also with the build-in properties from i2c-nvidia-gpu.c. > + } > + > + if (!uc->fw_build) > dev_err(uc->dev, "failed to get FW build information\n"); > > /* reset ccg device and initialize ucsi */ > @@ -1426,6 +1438,12 @@ 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}, > {} > @@ -1480,6 +1498,7 @@ 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_new = ucsi_ccg_probe, > .remove = ucsi_ccg_remove, > -- > 2.25.1
On 20/01/2023 09:33, Heikki Krogerus wrote: > On Thu, Jan 19, 2023 at 12:16:36PM +0000, Jon Hunter wrote: >> From: Wayne Chang <waynec@nvidia.com> >> >> 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. For ACPI a 16-bit property named 'ccgx,firmware-build' is used and >> if this is not found fall back to the 'firmware-name' property. >> >> Signed-off-by: Wayne Chang <waynec@nvidia.com> >> Co-developed-by: Jon Hunter <jonathanh@nvidia.com> >> Signed-off-by: Jon Hunter <jonathanh@nvidia.com> >> --- >> 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, 21 insertions(+), 2 deletions(-) >> >> diff --git a/drivers/usb/typec/ucsi/ucsi_ccg.c b/drivers/usb/typec/ucsi/ucsi_ccg.c >> index 46441f1477f2..661a3988b39d 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); >> @@ -1359,7 +1360,18 @@ static int ucsi_ccg_probe(struct i2c_client *client) >> /* Only fail FW flashing when FW build information is not provided */ >> status = device_property_read_u16(dev, "ccgx,firmware-build", >> &uc->fw_build); > > You don't need this anymore. You already added the new property > "firmware-name" to drivers/i2c/busses/i2c-nvidia-gpu.c. I was planning to get rid of this here, but I was not sure if AMD need this. I see now that Sanket has confirmed they don't use this and so will drop it from here. Jon
diff --git a/drivers/usb/typec/ucsi/ucsi_ccg.c b/drivers/usb/typec/ucsi/ucsi_ccg.c index 46441f1477f2..661a3988b39d 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); @@ -1359,7 +1360,18 @@ static int ucsi_ccg_probe(struct i2c_client *client) /* 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) + if (status) { + status = device_property_read_string(dev, "firmware-name", + &fw_name); + if (!status) { + if (!strcmp(fw_name, "nvidia,jetson-agx-xavier")) + uc->fw_build = CCG_FW_BUILD_NVIDIA_TEGRA; + else if (!strcmp(fw_name, "nvidia,gpu")) + uc->fw_build = CCG_FW_BUILD_NVIDIA; + } + } + + if (!uc->fw_build) dev_err(uc->dev, "failed to get FW build information\n"); /* reset ccg device and initialize ucsi */ @@ -1426,6 +1438,12 @@ 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}, {} @@ -1480,6 +1498,7 @@ 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_new = ucsi_ccg_probe, .remove = ucsi_ccg_remove,