From 07cdfc44f1a40652cbf349d279dd916b13197624 Mon Sep 17 00:00:00 2001 From: Cristian Marussi Date: Wed, 18 Jan 2023 12:14:12 +0000 Subject: firmware: arm_scmi: Refactor scmi_wait_for_message_response Refactor scmi_wait_for_message_response() to use a internal helper to carry out its main duties; while doing that make it accept directly an scmi_desc parameter to interact with the configured transport. No functional change. Signed-off-by: Cristian Marussi Tested-by: Florian Fainelli Tested-by: Vincent Guittot Link: https://lore.kernel.org/r/20230118121426.492864-4-cristian.marussi@arm.com Signed-off-by: Sudeep Holla --- drivers/firmware/arm_scmi/driver.c | 57 ++++++++++++++++++++++---------------- 1 file changed, 33 insertions(+), 24 deletions(-) (limited to 'drivers/firmware/arm_scmi') diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c index d7f21e81bd11..ce204a77c7f3 100644 --- a/drivers/firmware/arm_scmi/driver.c +++ b/drivers/firmware/arm_scmi/driver.c @@ -891,36 +891,18 @@ static bool scmi_xfer_done_no_timeout(struct scmi_chan_info *cinfo, ktime_after(ktime_get(), stop); } -/** - * scmi_wait_for_message_response - An helper to group all the possible ways of - * waiting for a synchronous message response. - * - * @cinfo: SCMI channel info - * @xfer: Reference to the transfer being waited for. - * - * Chooses waiting strategy (sleep-waiting vs busy-waiting) depending on - * configuration flags like xfer->hdr.poll_completion. - * - * Return: 0 on Success, error otherwise. - */ -static int scmi_wait_for_message_response(struct scmi_chan_info *cinfo, - struct scmi_xfer *xfer) +static int scmi_wait_for_reply(struct device *dev, const struct scmi_desc *desc, + struct scmi_chan_info *cinfo, + struct scmi_xfer *xfer, unsigned int timeout_ms) { - struct scmi_info *info = handle_to_scmi_info(cinfo->handle); - struct device *dev = info->dev; - int ret = 0, timeout_ms = info->desc->max_rx_timeout_ms; - - trace_scmi_xfer_response_wait(xfer->transfer_id, xfer->hdr.id, - xfer->hdr.protocol_id, xfer->hdr.seq, - timeout_ms, - xfer->hdr.poll_completion); + int ret = 0; if (xfer->hdr.poll_completion) { /* * Real polling is needed only if transport has NOT declared * itself to support synchronous commands replies. */ - if (!info->desc->sync_cmds_completed_on_ret) { + if (!desc->sync_cmds_completed_on_ret) { /* * Poll on xfer using transport provided .poll_done(); * assumes no completion interrupt was available. @@ -946,7 +928,7 @@ static int scmi_wait_for_message_response(struct scmi_chan_info *cinfo, */ spin_lock_irqsave(&xfer->lock, flags); if (xfer->state == SCMI_XFER_SENT_OK) { - info->desc->ops->fetch_response(cinfo, xfer); + desc->ops->fetch_response(cinfo, xfer); xfer->state = SCMI_XFER_RESP_OK; } spin_unlock_irqrestore(&xfer->lock, flags); @@ -970,6 +952,33 @@ static int scmi_wait_for_message_response(struct scmi_chan_info *cinfo, return ret; } +/** + * scmi_wait_for_message_response - An helper to group all the possible ways of + * waiting for a synchronous message response. + * + * @cinfo: SCMI channel info + * @xfer: Reference to the transfer being waited for. + * + * Chooses waiting strategy (sleep-waiting vs busy-waiting) depending on + * configuration flags like xfer->hdr.poll_completion. + * + * Return: 0 on Success, error otherwise. + */ +static int scmi_wait_for_message_response(struct scmi_chan_info *cinfo, + struct scmi_xfer *xfer) +{ + struct scmi_info *info = handle_to_scmi_info(cinfo->handle); + struct device *dev = info->dev; + + trace_scmi_xfer_response_wait(xfer->transfer_id, xfer->hdr.id, + xfer->hdr.protocol_id, xfer->hdr.seq, + info->desc->max_rx_timeout_ms, + xfer->hdr.poll_completion); + + return scmi_wait_for_reply(dev, info->desc, cinfo, xfer, + info->desc->max_rx_timeout_ms); +} + /** * do_xfer() - Do one transfer * -- cgit v1.2.3