From: Wayne Chang Date: Tue, 31 Jan 2023 17:57:45 +0000 (+0000) Subject: usb: typec: ucsi_ccg: Add OF support X-Git-Tag: v6.6.17~5457^2~73 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6d9e0669099f59473799f529b3c19a55fa164c92;p=platform%2Fkernel%2Flinux-rpi.git usb: typec: ucsi_ccg: Add OF support 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 Co-developed-by: Jon Hunter Signed-off-by: Jon Hunter Reviewed-by: Heikki Krogerus Link: https://lore.kernel.org/r/20230131175748.256423-4-jonathanh@nvidia.com Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/usb/typec/ucsi/ucsi_ccg.c b/drivers/usb/typec/ucsi/ucsi_ccg.c index 46441f1..e0ed465b 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 +1358,15 @@ 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); + 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 +1433,12 @@ 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 +1493,7 @@ 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,