From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Date: Mon, 4 Nov 2019 17:24:34 +0300
Subject: usb: typec: ucsi: New error codes
Git-commit: e716bb38edb44b6a7dd9b825f57450118b3066ae
Patch-mainline: v5.5-rc1
References: jsc#SLE-13918
Adding new error codes to the driver that were introduced in
UCSI specification v1.1.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Tested-by: Ajay Gupta <ajayg@nvidia.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20191104142435.29960-18-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
---
drivers/usb/typec/ucsi/ucsi.c | 25 ++++++++++++++++++++-----
drivers/usb/typec/ucsi/ucsi.h | 6 ++++++
2 files changed, 26 insertions(+), 5 deletions(-)
diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c
index 6c6def96a55b..772f55c92ba3 100644
--- a/drivers/usb/typec/ucsi/ucsi.c
+++ b/drivers/usb/typec/ucsi/ucsi.c
@@ -86,18 +86,33 @@ static int ucsi_read_error(struct ucsi *ucsi)
case UCSI_ERROR_DEAD_BATTERY:
dev_warn(ucsi->dev, "Dead battery condition!\n");
return -EPERM;
- /* The following mean a bug in this driver */
case UCSI_ERROR_INVALID_CON_NUM:
case UCSI_ERROR_UNREGONIZED_CMD:
case UCSI_ERROR_INVALID_CMD_ARGUMENT:
- dev_err(ucsi->dev, "possible UCSI driver bug (0x%x)\n", error);
+ dev_err(ucsi->dev, "possible UCSI driver bug %u\n", error);
return -EINVAL;
+ case UCSI_ERROR_OVERCURRENT:
+ dev_warn(ucsi->dev, "Overcurrent condition\n");
+ break;
+ case UCSI_ERROR_PARTNER_REJECTED_SWAP:
+ dev_warn(ucsi->dev, "Partner rejected swap\n");
+ break;
+ case UCSI_ERROR_HARD_RESET:
+ dev_warn(ucsi->dev, "Hard reset occurred\n");
+ break;
+ case UCSI_ERROR_PPM_POLICY_CONFLICT:
+ dev_warn(ucsi->dev, "PPM Policy conflict\n");
+ break;
+ case UCSI_ERROR_SWAP_REJECTED:
+ dev_warn(ucsi->dev, "Swap rejected\n");
+ break;
+ case UCSI_ERROR_UNDEFINED:
default:
- dev_err(ucsi->dev, "%s: error without status\n", __func__);
- return -EIO;
+ dev_err(ucsi->dev, "unknown error %u\n", error);
+ break;
}
- return 0;
+ return -EIO;
}
static int ucsi_exec_command(struct ucsi *ucsi, u64 cmd)
diff --git a/drivers/usb/typec/ucsi/ucsi.h b/drivers/usb/typec/ucsi/ucsi.h
index bc2254e7a3a3..8569bbd3762f 100644
--- a/drivers/usb/typec/ucsi/ucsi.h
+++ b/drivers/usb/typec/ucsi/ucsi.h
@@ -133,6 +133,12 @@ void ucsi_connector_change(struct ucsi *ucsi, u8 num);
#define UCSI_ERROR_CC_COMMUNICATION_ERR BIT(4)
#define UCSI_ERROR_DEAD_BATTERY BIT(5)
#define UCSI_ERROR_CONTRACT_NEGOTIATION_FAIL BIT(6)
+#define UCSI_ERROR_OVERCURRENT BIT(7)
+#define UCSI_ERROR_UNDEFINED BIT(8)
+#define UCSI_ERROR_PARTNER_REJECTED_SWAP BIT(9)
+#define UCSI_ERROR_HARD_RESET BIT(10)
+#define UCSI_ERROR_PPM_POLICY_CONFLICT BIT(11)
+#define UCSI_ERROR_SWAP_REJECTED BIT(12)
/* Data structure filled by PPM in response to GET_CAPABILITY command. */
struct ucsi_capability {