[PATCH 1/9] media: cros-ec-cec: Use cros_ec_cmd to send host commands

From: Reka Norman
Date: Mon Aug 14 2023 - 00:35:38 EST


Use the cros_ec_cmd helper function to reduce the amount of boilerplate
when sending host commands.

Signed-off-by: Reka Norman <rekanorman@xxxxxxxxxxxx>
---

.../media/cec/platform/cros-ec/cros-ec-cec.c | 44 +++++++------------
1 file changed, 16 insertions(+), 28 deletions(-)

diff --git a/drivers/media/cec/platform/cros-ec/cros-ec-cec.c b/drivers/media/cec/platform/cros-ec/cros-ec-cec.c
index c17faf002877..8dd95fb38546 100644
--- a/drivers/media/cec/platform/cros-ec/cros-ec-cec.c
+++ b/drivers/media/cec/platform/cros-ec/cros-ec-cec.c
@@ -95,18 +95,14 @@ static int cros_ec_cec_set_log_addr(struct cec_adapter *adap, u8 logical_addr)
{
struct cros_ec_cec *cros_ec_cec = adap->priv;
struct cros_ec_device *cros_ec = cros_ec_cec->cros_ec;
- struct {
- struct cros_ec_command msg;
- struct ec_params_cec_set data;
- } __packed msg = {};
+ struct ec_params_cec_set params = {
+ .cmd = CEC_CMD_LOGICAL_ADDRESS,
+ .val = logical_addr,
+ };
int ret;

- msg.msg.command = EC_CMD_CEC_SET;
- msg.msg.outsize = sizeof(msg.data);
- msg.data.cmd = CEC_CMD_LOGICAL_ADDRESS;
- msg.data.val = logical_addr;
-
- ret = cros_ec_cmd_xfer_status(cros_ec, &msg.msg);
+ ret = cros_ec_cmd(cros_ec, 0, EC_CMD_CEC_SET, &params, sizeof(params),
+ NULL, 0);
if (ret < 0) {
dev_err(cros_ec->dev,
"error setting CEC logical address on EC: %d\n", ret);
@@ -121,17 +117,13 @@ static int cros_ec_cec_transmit(struct cec_adapter *adap, u8 attempts,
{
struct cros_ec_cec *cros_ec_cec = adap->priv;
struct cros_ec_device *cros_ec = cros_ec_cec->cros_ec;
- struct {
- struct cros_ec_command msg;
- struct ec_params_cec_write data;
- } __packed msg = {};
+ struct ec_params_cec_write params;
int ret;

- msg.msg.command = EC_CMD_CEC_WRITE_MSG;
- msg.msg.outsize = cec_msg->len;
- memcpy(msg.data.msg, cec_msg->msg, cec_msg->len);
+ memcpy(params.msg, cec_msg->msg, cec_msg->len);

- ret = cros_ec_cmd_xfer_status(cros_ec, &msg.msg);
+ ret = cros_ec_cmd(cros_ec, 0, EC_CMD_CEC_WRITE_MSG, &params,
+ cec_msg->len, NULL, 0);
if (ret < 0) {
dev_err(cros_ec->dev,
"error writing CEC msg on EC: %d\n", ret);
@@ -145,18 +137,14 @@ static int cros_ec_cec_adap_enable(struct cec_adapter *adap, bool enable)
{
struct cros_ec_cec *cros_ec_cec = adap->priv;
struct cros_ec_device *cros_ec = cros_ec_cec->cros_ec;
- struct {
- struct cros_ec_command msg;
- struct ec_params_cec_set data;
- } __packed msg = {};
+ struct ec_params_cec_set params = {
+ .cmd = CEC_CMD_ENABLE,
+ .val = enable,
+ };
int ret;

- msg.msg.command = EC_CMD_CEC_SET;
- msg.msg.outsize = sizeof(msg.data);
- msg.data.cmd = CEC_CMD_ENABLE;
- msg.data.val = enable;
-
- ret = cros_ec_cmd_xfer_status(cros_ec, &msg.msg);
+ ret = cros_ec_cmd(cros_ec, 0, EC_CMD_CEC_SET, &params, sizeof(params),
+ NULL, 0);
if (ret < 0) {
dev_err(cros_ec->dev,
"error %sabling CEC on EC: %d\n",
--
2.41.0.640.ga95def55d0-goog