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Message-Id: <20210311091220.3615-1-Meng.Li@windriver.com>
Date: Thu, 11 Mar 2021 17:12:20 +0800
From: Meng.Li@...driver.com
To: linux-kernel@...r.kernel.org
Cc: broonie@...nel.org, tudor.ambarus@...rochip.com, vigneshr@...com,
vadivel.muruganx.ramuthevar@...ux.intel.com,
linux-spi@...r.kernel.org, meng.li@...driver.com
Subject: [PATCH] drivers: spi: cadence: set cqspi to the driver_data field of struct device
From: Meng Li <Meng.Li@...driver.com>
When initialize cadence qspi controller, it is need to set cqspi
to the driver_data field of struct device, because it will be
used in function cqspi_remove/suspend/resume(). Otherwise, there
will be a crash trace as below when invoking these finctions.
Call trace:
cqspi_suspend+0x14/0x44
dpm_run_callback+0x50/0x1c0
__device_suspend+0x114/0x514
......
el0_svc+0x20/0x30
el0_sync_handler+0x1a4/0x1b0
el0_sync+0x174/0x180
Fixes: 31fb632b5d43("spi: Move cadence-quadspi driver to drivers/spi/")
Cc: stable@...r.kernel.org
Signed-off-by: Meng Li <Meng.Li@...driver.com>
---
drivers/spi/spi-cadence-quadspi.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/spi/spi-cadence-quadspi.c b/drivers/spi/spi-cadence-quadspi.c
index ba7d40c2922f..d8b0e1f1cb3a 100644
--- a/drivers/spi/spi-cadence-quadspi.c
+++ b/drivers/spi/spi-cadence-quadspi.c
@@ -1198,6 +1198,7 @@ static int cqspi_probe(struct platform_device *pdev)
cqspi = spi_master_get_devdata(master);
cqspi->pdev = pdev;
+ platform_set_drvdata(pdev, cqspi);
/* Obtain configuration from OF. */
ret = cqspi_of_get_pdata(cqspi);
--
2.17.1
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