linux-kernel - Applied "spi: atmel-quadspi: fix crash while suspending" to the spi tree

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Message-Id: <20190502021854.4C752441D57@finisterre.ee.mobilebroadband>
Date:   Thu,  2 May 2019 03:18:54 +0100 (BST)
From:   Mark Brown <broonie@...nel.org>
To:     Claudiu Beznea <claudiu.beznea@...rochip.com>
Cc:     alexandre.belloni@...tlin.com, broonie@...nel.org,
        Claudiu.Beznea@...rochip.com, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-spi@...r.kernel.org,
        Ludovic.Desroches@...rochip.com, Mark Brown <broonie@...nel.org>,
        Nicolas.Ferre@...rochip.com
Subject: Applied "spi: atmel-quadspi: fix crash while suspending" to the spi tree

The patch

   spi: atmel-quadspi: fix crash while suspending

has been applied to the spi tree at

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-5.1

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From e5c27498a0403b270620b1a8a0a66e3efc222fb6 Mon Sep 17 00:00:00 2001
From: Claudiu Beznea <claudiu.beznea@...rochip.com>
Date: Wed, 24 Apr 2019 09:17:59 +0000
Subject: [PATCH] spi: atmel-quadspi: fix crash while suspending

atmel_qspi objects are kept in spi_controller objects, so, first get
pointer to spi_controller object and then get atmel_qspi object from
spi_controller object.

Fixes: 2d30ac5ed633 ("mtd: spi-nor: atmel-quadspi: Use spi-mem interface for atmel-quadspi driver")
Signed-off-by: Claudiu Beznea <claudiu.beznea@...rochip.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@...rochip.com>
Signed-off-by: Mark Brown <broonie@...nel.org>
---
 drivers/spi/atmel-quadspi.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/atmel-quadspi.c b/drivers/spi/atmel-quadspi.c
index fffc21cd5f79..b3173ebddade 100644
--- a/drivers/spi/atmel-quadspi.c
+++ b/drivers/spi/atmel-quadspi.c
@@ -570,7 +570,8 @@ static int atmel_qspi_remove(struct platform_device *pdev)
 
 static int __maybe_unused atmel_qspi_suspend(struct device *dev)
 {
-	struct atmel_qspi *aq = dev_get_drvdata(dev);
+	struct spi_controller *ctrl = dev_get_drvdata(dev);
+	struct atmel_qspi *aq = spi_controller_get_devdata(ctrl);
 
 	clk_disable_unprepare(aq->qspick);
 	clk_disable_unprepare(aq->pclk);
@@ -580,7 +581,8 @@ static int __maybe_unused atmel_qspi_suspend(struct device *dev)
 
 static int __maybe_unused atmel_qspi_resume(struct device *dev)
 {
-	struct atmel_qspi *aq = dev_get_drvdata(dev);
+	struct spi_controller *ctrl = dev_get_drvdata(dev);
+	struct atmel_qspi *aq = spi_controller_get_devdata(ctrl);
 
 	clk_prepare_enable(aq->pclk);
 	clk_prepare_enable(aq->qspick);
-- 
2.20.1