Commit 8219efd0 authored by Robin Gong's avatar Robin Gong Committed by Jassi Brar
Browse files

mailbox: imx: fix crash in resume on i.mx8ulp 



check 'priv->clk' before 'imx_mu_read()' otherwise crash happens on
i.mx8ulp, since clock not enabled.

Fixes: 4f0b776e ("mailbox: imx-mailbox: support i.MX8ULP MU")
Reviewed-by: default avatarJacky Bai <ping.bai@nxp.com>
Signed-off-by: default avatarRobin Gong <yibin.gong@nxp.com>
Signed-off-by: default avatarPeng Fan <peng.fan@nxp.com>
Signed-off-by: default avatarJassi Brar <jaswinder.singh@linaro.org>
parent 892cb524

drivers/mailbox/imx-mailbox.c

+1 −1
Original line number Diff line number Diff line
@@ -725,7 +725,7 @@ static int __maybe_unused imx_mu_resume_noirq(struct device *dev) 
	 * send failed, may lead to system freeze. This issue

	 * is observed by testing freeze mode suspend.

	 */

	if (!imx_mu_read(priv, priv->dcfg->xCR[0]) && !priv->clk) {

	if (!priv->clk && !imx_mu_read(priv, priv->dcfg->xCR[0])) {

		for (i = 0; i < IMX_MU_xCR_MAX; i++)

			imx_mu_write(priv, priv->xcr[i], priv->dcfg->xCR[i]);

	}