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authorUwe Kleine-König2018-04-25 16:50:39 +0200
committerMarc Kleine-Budde2018-05-08 10:41:38 +0200
commit0e030a373df3b8792b8991740fc31fe0629c6e58 (patch)
treeec7618de4b21dd6736f14d6d9d1ad091876ac2c9 /arch/arm/boot
parent71c23a821c6bcacba71a094efe49ee689605906b (diff)
can: flexcan: fix endianess detection
In commit 88462d2a7830 ("can: flexcan: Remodel FlexCAN register r/w APIs for big endian FlexCAN controllers.") the following logic was implemented: if the dt property "big-endian" is given or the device is compatible to "fsl,p1010-flexcan": use big-endian mode; else use little-endian mode; This relies on commit d50f4630c2e1 ("arm: dts: Remove p1010-flexcan compatible from imx series dts") which was applied a few commits later. Without this commit (or an old device tree used for booting a new kernel) the flexcan devices on i.MX25, i.MX28, i.MX35 and i.MX53 match the 'the device is compatible to "fsl,p1010-flexcan"' test and so are switched erroneously to big endian mode. Instead of the check above put a quirk in devtype data and rely on of_match_device yielding the most compatible match Fixes: 88462d2a7830 ("can: flexcan: Remodel FlexCAN register r/w APIs for big endian FlexCAN controllers.") Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Tested-by: Gavin Schenk <g.schenk@eckelmann.de> Cc: linux-stable <stable@vger.kernel.org> # >= v4.16 Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'arch/arm/boot')
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