linux-kernel - [PATCH V2] soc: imx: imx8m-blk-ctrl: Fix IMX8MN_DISPBLK_PD

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Message-Id: <20220320205212.701548-1-aford173@gmail.com>
Date:   Sun, 20 Mar 2022 15:52:12 -0500
From:   Adam Ford <aford173@...il.com>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     aford@...conembedded.com, Adam Ford <aford173@...il.com>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Lucas Stach <l.stach@...gutronix.de>,
        linux-kernel@...r.kernel.org
Subject: [PATCH V2] soc: imx: imx8m-blk-ctrl: Fix IMX8MN_DISPBLK_PD_ISI hang

The imx8mn clock list for the ISI lists four clocks, but DOMAIN_MAX_CLKS
was set to 3.  Because of this, attempts to enable the fourth clock failed,
threw some splat, and ultimately hung.

Fixes: 7f511d514e8c ("soc: imx: imx8m-blk-ctrl: add i.MX8MN DISP blk-ctrl")
Signed-off-by: Adam Ford <aford173@...il.com>

diff --git a/drivers/soc/imx/imx8m-blk-ctrl.c b/drivers/soc/imx/imx8m-blk-ctrl.c
index a0a0d2d7ca4a..7109f0d508e2 100644
--- a/drivers/soc/imx/imx8m-blk-ctrl.c
+++ b/drivers/soc/imx/imx8m-blk-ctrl.c
@@ -50,7 +50,7 @@ struct imx8m_blk_ctrl_domain_data {
 	u32 mipi_phy_rst_mask;
 };
 
-#define DOMAIN_MAX_CLKS 3
+#define DOMAIN_MAX_CLKS 4
 
 struct imx8m_blk_ctrl_domain {
 	struct generic_pm_domain genpd;
-- 
2.34.1