Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit c60d298e authored by Konstantin Dorfman's avatar Konstantin Dorfman
Browse files

soc: qcom: spcom: create control channel 



For commands that don't required SPU communication (is-link-up and
create channel), instead of using sp_kernel channel (the one used for
application loading) use /dev/spcom control channel.

Change-Id: I6e66949f7eb4ef9822b0b5ab37e9146c7ce23ab3
Signed-off-by: default avatarKineret Berger <kberger@codeaurora.org>
Signed-off-by: default avatarKonstantin Dorfman <kdorfman@codeaurora.org>
parent 309c887b

drivers/soc/qcom/spcom.c

+17 −9
Original line number Diff line number Diff line
@@ -981,6 +981,11 @@ static int spcom_handle_write(struct spcom_channel *ch, 


	pr_debug("cmd_id [0x%x]\n", cmd_id);



	if (!ch && cmd_id != SPCOM_CMD_CREATE_CHANNEL) {

		pr_err("channel context is null\n");

		return -EINVAL;

	}



	switch (cmd_id) {

	case SPCOM_CMD_SEND:

		ret = spcom_handle_send_command(ch, buf, buf_size);
@@ -1350,15 +1355,18 @@ static ssize_t spcom_device_write(struct file *filp, 


	ch = filp->private_data;

	if (!ch) {

		if (strcmp(name, DEVICE_NAME) != 0) {

			pr_err("invalid ch pointer, command not allowed.\n");

			return -EINVAL;

		}



		pr_debug("control device - no channel context.\n");

	} else {

		/* Check if remote side connect */

		if (!spcom_is_channel_connected(ch)) {

		pr_err("ch [%s] remote side not connected\n", ch->name);

			pr_err("ch [%s] remote side not connect.\n", ch->name);

			return -ENOTCONN;

		}

	}



	if (size > SPCOM_MAX_COMMAND_SIZE) {

		pr_err("size [%d] > max size [%d].\n",
@@ -2079,7 +2087,7 @@ static int __init spcom_init(void) 
{

	int ret;



	pr_debug("spcom driver version 2.0 4-Mar-2018\n");

	pr_info("spcom driver version 2.1 23-April-2018.\n");



	ret = platform_driver_register(&spcom_driver);

	if (ret)