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From:   Daniel Baluta <daniel.baluta@nxp.com>
To:     jaswinder.singh@linaro.org, jassisinghbrar@gmail.com
Cc:     shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de,
        festevam@gmail.com, linux-imx@nxp.com,
        linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        shengjiu.wang@nxp.com, o.rempel@pengutronix.de,
        daniel.baluta@gmail.com, Daniel Baluta <daniel.baluta@nxp.com>
Subject: [RESEND PATCH v2] mailbox: imx: Clear GIEn bit at shutdown
Date:   Thu, 27 Jun 2019 15:29:27 +0300
Message-Id: <20190627122927.9041-1-daniel.baluta@nxp.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

GIEn is enabled at startup for RX doorbell mailboxes so
we need to clear the bit at shutdown in order to avoid
leaving the interrupt line enabled.

Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
---
Changes since v1:
 - separate patch from inital series of creating DSP IPC driver
 - add Oleksij reviewed-by
 - include Jassi's linaro email

 drivers/mailbox/imx-mailbox.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mailbox/imx-mailbox.c b/drivers/mailbox/imx-mailbox.c
index 25be8bb5e371..9f74dee1a58c 100644
--- a/drivers/mailbox/imx-mailbox.c
+++ b/drivers/mailbox/imx-mailbox.c
@@ -217,8 +217,8 @@ static void imx_mu_shutdown(struct mbox_chan *chan)
 	if (cp->type == IMX_MU_TYPE_TXDB)
 		tasklet_kill(&cp->txdb_tasklet);
 
-	imx_mu_xcr_rmw(priv, 0,
-		   IMX_MU_xCR_TIEn(cp->idx) | IMX_MU_xCR_RIEn(cp->idx));
+	imx_mu_xcr_rmw(priv, 0, IMX_MU_xCR_TIEn(cp->idx) |
+		       IMX_MU_xCR_RIEn(cp->idx) | IMX_MU_xCR_GIEn(cp->idx));
 
 	free_irq(priv->irq, chan);
 }
-- 
2.17.1