linux-kernel - [PATCH v2 08/17] extcon: cros_ec: Use cros_ec

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Date:   Wed,  5 Feb 2020 11:00:09 -0800
From:   Prashant Malani <pmalani@...omium.org>
To:     linux-kernel@...r.kernel.org
Cc:     Prashant Malani <pmalani@...omium.org>,
        MyungJoo Ham <myungjoo.ham@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Benson Leung <bleung@...omium.org>,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        Guenter Roeck <groeck@...omium.org>
Subject: [PATCH v2 08/17] extcon: cros_ec: Use cros_ec_cmd()

Replace cros_ec_pd_command() with cros_ec_cmd() which does the same
thing, but is defined in a common location in platform/chrome and
exposed for other modules to use.

Signed-off-by: Prashant Malani <pmalani@...omium.org>
---

Changes in v2:
- Updated to use new function name and parameter list.

 drivers/extcon/extcon-usbc-cros-ec.c | 61 ++++------------------------
 1 file changed, 8 insertions(+), 53 deletions(-)

diff --git a/drivers/extcon/extcon-usbc-cros-ec.c b/drivers/extcon/extcon-usbc-cros-ec.c
index 5290cc2d19d953..2939cedca04798 100644
--- a/drivers/extcon/extcon-usbc-cros-ec.c
+++ b/drivers/extcon/extcon-usbc-cros-ec.c
@@ -45,49 +45,6 @@ enum usb_data_roles {
 	DR_DEVICE,
 };
 
-/**
- * cros_ec_pd_command() - Send a command to the EC.
- * @info: pointer to struct cros_ec_extcon_info
- * @command: EC command
- * @version: EC command version
- * @outdata: EC command output data
- * @outsize: Size of outdata
- * @indata: EC command input data
- * @insize: Size of indata
- *
- * Return: 0 on success, <0 on failure.
- */
-static int cros_ec_pd_command(struct cros_ec_extcon_info *info,
-			      unsigned int command,
-			      unsigned int version,
-			      void *outdata,
-			      unsigned int outsize,
-			      void *indata,
-			      unsigned int insize)
-{
-	struct cros_ec_command *msg;
-	int ret;
-
-	msg = kzalloc(sizeof(*msg) + max(outsize, insize), GFP_KERNEL);
-	if (!msg)
-		return -ENOMEM;
-
-	msg->version = version;
-	msg->command = command;
-	msg->outsize = outsize;
-	msg->insize = insize;
-
-	if (outsize)
-		memcpy(msg->data, outdata, outsize);
-
-	ret = cros_ec_cmd_xfer_status(info->ec, msg);
-	if (ret >= 0 && insize)
-		memcpy(indata, msg->data, insize);
-
-	kfree(msg);
-	return ret;
-}
-
 /**
  * cros_ec_usb_get_power_type() - Get power type info about PD device attached
  * to given port.
@@ -102,8 +59,8 @@ static int cros_ec_usb_get_power_type(struct cros_ec_extcon_info *info)
 	int ret;
 
 	req.port = info->port_id;
-	ret = cros_ec_pd_command(info, EC_CMD_USB_PD_POWER_INFO, 0,
-				 &req, sizeof(req), &resp, sizeof(resp));
+	ret = cros_ec_cmd(info->ec, 0, EC_CMD_USB_PD_POWER_INFO, &req,
+			  sizeof(req), &resp, sizeof(resp), NULL);
 	if (ret < 0)
 		return ret;
 
@@ -123,9 +80,8 @@ static int cros_ec_usb_get_pd_mux_state(struct cros_ec_extcon_info *info)
 	int ret;
 
 	req.port = info->port_id;
-	ret = cros_ec_pd_command(info, EC_CMD_USB_PD_MUX_INFO, 0,
-				 &req, sizeof(req),
-				 &resp, sizeof(resp));
+	ret = cros_ec_cmd(info->ec, 0, EC_CMD_USB_PD_MUX_INFO, &req,
+			  sizeof(req), &resp, sizeof(resp), NULL);
 	if (ret < 0)
 		return ret;
 
@@ -152,9 +108,8 @@ static int cros_ec_usb_get_role(struct cros_ec_extcon_info *info,
 	pd_control.role = USB_PD_CTRL_ROLE_NO_CHANGE;
 	pd_control.mux = USB_PD_CTRL_MUX_NO_CHANGE;
 	pd_control.swap = USB_PD_CTRL_SWAP_NONE;
-	ret = cros_ec_pd_command(info, EC_CMD_USB_PD_CONTROL, 1,
-				 &pd_control, sizeof(pd_control),
-				 &resp, sizeof(resp));
+	ret = cros_ec_cmd(info->ec, 1, EC_CMD_USB_PD_CONTROL, &pd_control,
+			  sizeof(pd_control), &resp, sizeof(resp), NULL);
 	if (ret < 0)
 		return ret;
 
@@ -177,8 +132,8 @@ static int cros_ec_pd_get_num_ports(struct cros_ec_extcon_info *info)
 	struct ec_response_usb_pd_ports resp;
 	int ret;
 
-	ret = cros_ec_pd_command(info, EC_CMD_USB_PD_PORTS,
-				 0, NULL, 0, &resp, sizeof(resp));
+	ret = cros_ec_cmd(info->ec, 0, EC_CMD_USB_PD_PORTS, NULL, 0, &resp,
+			  sizeof(resp), NULL);
 	if (ret < 0)
 		return ret;
 
-- 
2.25.0.341.g760bfbb309-goog