linux-kernel - [PATCH 5/9] remoteproc: imx

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 11 Jan 2022 11:33:29 +0800
From:   "Peng Fan (OSS)" <peng.fan@....nxp.com>
To:     bjorn.andersson@...aro.org, mathieu.poirier@...aro.org,
        shawnguo@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de,
        festevam@...il.com, linux-imx@....com,
        linux-remoteproc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Peng Fan <peng.fan@....com>
Subject: [PATCH 5/9] remoteproc: imx_rproc: make clk optional

From: Peng Fan <peng.fan@....com>

To i.MX8QXP/QM/ULP and i.MX7ULP, Mcore maybe out of control of Linux.
And in such case, no need clk, so make clk optional with has_clk.

Signed-off-by: Peng Fan <peng.fan@....com>
---
 drivers/remoteproc/imx_rproc.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
index 7b2578177ea8..0e99a3ca6fbc 100644
--- a/drivers/remoteproc/imx_rproc.c
+++ b/drivers/remoteproc/imx_rproc.c
@@ -89,6 +89,7 @@ struct imx_rproc {
 	struct work_struct		rproc_work;
 	struct workqueue_struct		*workqueue;
 	void __iomem			*rsc_table;
+	bool				has_clk;
 };
 
 static const struct imx_rproc_att imx_rproc_att_imx8mn[] = {
@@ -724,6 +725,9 @@ static int imx_rproc_clk_enable(struct imx_rproc *priv)
 	if (dcfg->method == IMX_RPROC_NONE)
 		return 0;
 
+	if (!priv->has_clk)
+		return 0;
+
 	priv->clk = devm_clk_get(dev, NULL);
 	if (IS_ERR(priv->clk)) {
 		dev_err(dev, "Failed to get clock\n");
@@ -768,6 +772,7 @@ static int imx_rproc_probe(struct platform_device *pdev)
 	priv->rproc = rproc;
 	priv->dcfg = dcfg;
 	priv->dev = dev;
+	priv->has_clk = true;
 
 	dev_set_drvdata(dev, rproc);
 	priv->workqueue = create_workqueue(dev_name(dev));
-- 
2.25.1