linux-kernel - [PATCH RFC 2/2] soc: imx8m-blk-ctrl: do not export debugfs

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Message-Id: <20220620134758.1286480-3-aisheng.dong@nxp.com>
Date:   Mon, 20 Jun 2022 21:47:58 +0800
From:   Dong Aisheng <aisheng.dong@....com>
To:     broonie@...nel.org
Cc:     linux-kernel@...r.kernel.org, dongas86@...il.com,
        l.stach@...gutronix.de, peng.fan@....com, shawnguo@...nel.org,
        Dong Aisheng <aisheng.dong@....com>
Subject: [PATCH RFC 2/2] soc: imx8m-blk-ctrl: do not export debugfs

imx8m blkctl does not support registers dumping via regmap debugfs
due to power domain required which is not supported by current regmap
core. So let's claim no debugfs support, otherwise the system may
hang when dumping registers through regmap debugfs.

Cc: Mark Brown <broonie@...nel.org>
Cc: Lucas Stach <l.stach@...gutronix.de>
Signed-off-by: Dong Aisheng <aisheng.dong@....com>
---
 drivers/soc/imx/imx8m-blk-ctrl.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/soc/imx/imx8m-blk-ctrl.c b/drivers/soc/imx/imx8m-blk-ctrl.c
index 7ebc28709e94..a064670576e8 100644
--- a/drivers/soc/imx/imx8m-blk-ctrl.c
+++ b/drivers/soc/imx/imx8m-blk-ctrl.c
@@ -179,6 +179,7 @@ static int imx8m_blk_ctrl_probe(struct platform_device *pdev)
 		.reg_bits	= 32,
 		.val_bits	= 32,
 		.reg_stride	= 4,
+		.disable_debugfs = true,
 	};
 
 	bc = devm_kzalloc(dev, sizeof(*bc), GFP_KERNEL);
-- 
2.25.1