linux-kernel - [RFC LINUX PATCH 02/19] remtoeproc: Add an operation to check if remote is running

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Message-ID: <1490383355-23176-3-git-send-email-jliang@xilinx.com>
Date:   Fri, 24 Mar 2017 12:22:18 -0700
From:   Wendy Liang <wendy.liang@...inx.com>
To:     <bjorn.andersson@...aro.org>
CC:     <linux-remoteproc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        "Wendy Liang" <wendy.liang@...inx.com>,
        Wendy Liang <jliang@...inx.com>,
        Michal Simek <michal.simek@...inx.com>
Subject: [RFC LINUX PATCH 02/19] remtoeproc: Add an operation to check if remote is running

From: Wendy Liang <wendy.liang@...inx.com>

Add a remoteproc driver operation to check if the remote is running.

Signed-off-by: Wendy Liang <jliang@...inx.com>
Signed-off-by: Michal Simek <michal.simek@...inx.com>
---
 drivers/remoteproc/remoteproc_core.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index 9d32737..dfa2aad 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -888,6 +888,16 @@ static void rproc_resource_cleanup(struct rproc *rproc)
 }
 
 /*
+ * check if the remote is running
+ */
+static bool rproc_is_running(struct rproc *rproc)
+{
+	if (rproc->ops->is_running)
+		return rproc->ops->is_running(rproc);
+	return (rproc->state == RPROC_RUNNING) ? true : false;
+}
+
+/*
  * take a firmware and boot a remote processor with it.
  */
 static int rproc_fw_boot(struct rproc *rproc, const struct firmware *fw)
-- 
1.9.1