[PATCH v2 06/13] usb: typec: ucsi_ccg: Add cypress,firmware-build as a well-known regex
From: Wayne Chang <hidden>
Date: 2022-11-11 10:17:15
Also in:
linux-i2c, linux-phy, linux-tegra, linux-usb, lkml
Subsystem:
the rest, usb subsystem, usb typec class · Maintainers:
Linus Torvalds, Greg Kroah-Hartman, Heikki Krogerus
ccgx is refer to the cypress cypd4226 typec controller. add cypress,firmware-build as a well-known regex. 16-bit value is not sufficient for descriptiva names. Using string instead of u16 to make it more descriptive. Signed-off-by: Wayne Chang <redacted> --- V1 -> V2:New change added for adding cypress,firmware-build drivers/usb/typec/ucsi/ucsi_ccg.c | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/drivers/usb/typec/ucsi/ucsi_ccg.c b/drivers/usb/typec/ucsi/ucsi_ccg.c
index 139707a2f3d6..e412a457bbfc 100644
--- a/drivers/usb/typec/ucsi/ucsi_ccg.c
+++ b/drivers/usb/typec/ucsi/ucsi_ccg.c@@ -1343,6 +1343,7 @@ static int ucsi_ccg_probe(struct i2c_client *client, { struct device *dev = &client->dev; struct ucsi_ccg *uc; + const char *of_fw_build; int status; uc = devm_kzalloc(dev, sizeof(*uc), GFP_KERNEL);
@@ -1363,6 +1364,17 @@ static int ucsi_ccg_probe(struct i2c_client *client, if (status) dev_err(uc->dev, "failed to get FW build information\n"); + status = device_property_read_string(dev, "cypress,firmware-build", + &of_fw_build); + if (!status) { + if (!strcmp(of_fw_build, "nvidia,jetson-agx-xavier")) + uc->fw_build = CCG_FW_BUILD_NVIDIA_TEGRA; + else if (!strcmp(of_fw_build, "nvidia,gpu")) + uc->fw_build = CCG_FW_BUILD_NVIDIA; + } else { + dev_err(uc->dev, "failed to get FW build information\n"); + } + /* reset ccg device and initialize ucsi */ status = ucsi_ccg_init(uc); if (status < 0) {
--
2.25.1