linux-kernel - [PATCH v2 12/17] power: supply: cros: Use cros_ec

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Message-Id: <20200205190028.183069-13-pmalani@chromium.org>
Date:   Wed,  5 Feb 2020 11:00:18 -0800
From:   Prashant Malani <pmalani@...omium.org>
To:     linux-kernel@...r.kernel.org
Cc:     Prashant Malani <pmalani@...omium.org>,
        Benson Leung <bleung@...omium.org>,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        Guenter Roeck <groeck@...omium.org>,
        Sebastian Reichel <sre@...nel.org>,
        linux-pm@...r.kernel.org (open list:POWER SUPPLY CLASS/SUBSYSTEM and
        DRIVERS)
Subject: [PATCH v2 12/17] power: supply: cros: Use cros_ec_cmd()

Replace cros_usbpd_charger_ec_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. This allows us to remove
cros_usbpd_charger_ec_command() entirely.

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

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

 drivers/power/supply/cros_usbpd-charger.c | 58 ++++-------------------
 1 file changed, 10 insertions(+), 48 deletions(-)

diff --git a/drivers/power/supply/cros_usbpd-charger.c b/drivers/power/supply/cros_usbpd-charger.c
index 30c3d37511c9e1..4631d96fda2ca1 100644
--- a/drivers/power/supply/cros_usbpd-charger.c
+++ b/drivers/power/supply/cros_usbpd-charger.c
@@ -91,46 +91,13 @@ static bool cros_usbpd_charger_port_is_dedicated(struct port_data *port)
 	return port->port_number >= port->charger->num_usbpd_ports;
 }
 
-static int cros_usbpd_charger_ec_command(struct charger_data *charger,
-					 unsigned int version,
-					 unsigned int command,
-					 void *outdata,
-					 unsigned int outsize,
-					 void *indata,
-					 unsigned int insize)
-{
-	struct cros_ec_dev *ec_dev = charger->ec_dev;
-	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 = ec_dev->cmd_offset + command;
-	msg->outsize = outsize;
-	msg->insize = insize;
-
-	if (outsize)
-		memcpy(msg->data, outdata, outsize);
-
-	ret = cros_ec_cmd_xfer_status(charger->ec_device, msg);
-	if (ret >= 0 && insize)
-		memcpy(indata, msg->data, insize);
-
-	kfree(msg);
-	return ret;
-}
-
 static int cros_usbpd_charger_get_num_ports(struct charger_data *charger)
 {
 	struct ec_response_charge_port_count resp;
 	int ret;
 
-	ret = cros_usbpd_charger_ec_command(charger, 0,
-					    EC_CMD_CHARGE_PORT_COUNT,
-					    NULL, 0, &resp, sizeof(resp));
+	ret = cros_ec_cmd(charger->ec_device, 0, EC_CMD_CHARGE_PORT_COUNT, NULL,
+			  0, &resp, sizeof(resp), NULL);
 	if (ret < 0)
 		return ret;
 
@@ -142,8 +109,8 @@ static int cros_usbpd_charger_get_usbpd_num_ports(struct charger_data *charger)
 	struct ec_response_usb_pd_ports resp;
 	int ret;
 
-	ret = cros_usbpd_charger_ec_command(charger, 0, EC_CMD_USB_PD_PORTS,
-					    NULL, 0, &resp, sizeof(resp));
+	ret = cros_ec_cmd(charger->ec_device, 0, EC_CMD_USB_PD_PORTS, NULL, 0,
+			  &resp, sizeof(resp), NULL);
 	if (ret < 0)
 		return ret;
 
@@ -159,10 +126,8 @@ static int cros_usbpd_charger_get_discovery_info(struct port_data *port)
 
 	req.port = port->port_number;
 
-	ret = cros_usbpd_charger_ec_command(charger, 0,
-					    EC_CMD_USB_PD_DISCOVERY,
-					    &req, sizeof(req),
-					    &resp, sizeof(resp));
+	ret = cros_ec_cmd(charger->ec_device, 0, EC_CMD_USB_PD_DISCOVERY, &req,
+			  sizeof(req), &resp, sizeof(resp), NULL);
 	if (ret < 0) {
 		dev_err(charger->dev,
 			"Unable to query discovery info (err:0x%x)\n", ret);
@@ -189,10 +154,8 @@ static int cros_usbpd_charger_get_power_info(struct port_data *port)
 	int ret;
 
 	req.port = port->port_number;
-	ret = cros_usbpd_charger_ec_command(charger, 0,
-					    EC_CMD_USB_PD_POWER_INFO,
-					    &req, sizeof(req),
-					    &resp, sizeof(resp));
+	ret = cros_ec_cmd(charger->ec_device, 0, EC_CMD_USB_PD_POWER_INFO, &req,
+			  sizeof(req), &resp, sizeof(resp), NULL);
 	if (ret < 0) {
 		dev_err(dev, "Unable to query PD power info (err:0x%x)\n", ret);
 		return ret;
@@ -334,9 +297,8 @@ static int cros_usbpd_charger_set_ext_power_limit(struct charger_data *charger,
 	req.current_lim = current_lim;
 	req.voltage_lim = voltage_lim;
 
-	ret = cros_usbpd_charger_ec_command(charger, 0,
-					    EC_CMD_EXTERNAL_POWER_LIMIT,
-					    &req, sizeof(req), NULL, 0);
+	ret = cros_ec_cmd(charger->ec_device, 0, EC_CMD_EXTERNAL_POWER_LIMIT,
+			  &req, sizeof(req), NULL, 0, NULL);
 	if (ret < 0)
 		dev_err(charger->dev,
 			"Unable to set the 'External Power Limit': %d\n", ret);
-- 
2.25.0.341.g760bfbb309-goog