kernel/drivers/net/can/flexcan.c, branch linux-4.16.y

can: flexcan: fix endianess detection

2018-05-16T08:12:30Z

commit 0e030a373df3b8792b8991740fc31fe0629c6e58 upstream. 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 Tested-by: Gavin Schenk Cc: linux-stable # >= v4.16 Signed-off-by: Marc Kleine-Budde Signed-off-by: Greg Kroah-Hartman

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2018-01-09T15:37:00Z

can: flex_can: Correct the checking for frame length in flexcan_start_xmit()

2018-01-04T15:14:38Z

The flexcan_start_xmit() function compares the frame length with data register length to write frame content into data[0] and data[1] register. Data register length is 4 bytes and frame maximum length is 8 bytes. Fix the check that compares frame length with 3. Because the register length is 4. Signed-off-by: Luu An Phu Reviewed-by: Oliver Hartkopp Signed-off-by: Marc Kleine-Budde

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2017-12-05T15:44:19Z

Small overlapping change conflict ('net' changed a line, 'net-next' added a line right afterwards) in flexcan.c Signed-off-by: David S. Miller

can: flexcan: fix VF610 state transition issue

2017-12-01T10:26:14Z

Enable FLEXCAN_QUIRK_BROKEN_PERR_STATE for VF610 to report correct state transitions. Tested-by: Mirza Krak Cc: linux-stable # >= v4.11 Signed-off-by: Marc Kleine-Budde

can: flexcan: Update IRQ Err Passive information

2017-12-01T10:20:52Z

The flexcan IP cores used on MX25 and MX35 do not generate Error Passive IRQs. Update the IP core overview table in the driver accordingly. Suggested-by: ZHU Yi (ST-FIR/ENG1-Zhu) Signed-off-by: Marc Kleine-Budde

can: flexcan: adding platform specific details for LS1021A

2017-12-01T08:14:23Z

This patch adds platform specific details for NXP SOC LS1021A to the flexcan driver code. Signed-off-by: Pankaj Bansal Signed-off-by: Bhupesh Sharma Reviewed-by: Zhengxiong Jin Reviewed-by: Poonam Aggrwal Signed-off-by: Marc Kleine-Budde

can: flexcan: Remodel FlexCAN register r/w APIs for big endian FlexCAN controllers.

2017-12-01T08:14:23Z

The FlexCAN driver assumed that FlexCAN controller is big endian for powerpc architecture and little endian for other architectures. But this may not be the case. FlexCAN controller can be little or big endian on any architecture. For e.g. NXP LS1021A ARM based SOC has big endian FlexCAN controller. Therefore, the driver has been modified to add a provision for both types of controllers using an additional device tree property. On a "fsl,p1010-flexcan" device BE is default, on all other devices LE is. Big Endian controllers should have "big-endian" set in the device tree. check "Documentation/devicetree/bindings/net/can/fsl-flexcan.txt" for usage. This is the standard practice followed in linux. for more info check: Documentation/devicetree/bindings/common-properties.txt Signed-off-by: Pankaj Bansal Signed-off-by: Bhupesh Sharma Signed-off-by: Sakar Arora Reviewed-by: Zhengxiong Jin Reviewed-by: Poonam Aggrwal Signed-off-by: Marc Kleine-Budde

can: flexcan: fix p1010 state transition issue

2017-10-19T11:05:53Z

Enable FLEXCAN_QUIRK_BROKEN_WERR_STATE and FLEXCAN_QUIRK_BROKEN_PERR_STATE for p1010 to report correct state transitions. Signed-off-by: Zhu Yi Signed-off-by: Mark Jonas Acked-by: Wolfgang Grandegger Cc: linux-stable # >= v4.11 Signed-off-by: Marc Kleine-Budde

can: flexcan: fix i.MX28 state transition issue

2017-10-19T11:05:53Z

Enable FLEXCAN_QUIRK_BROKEN_PERR_STATE for i.MX28 to report correct state transitions, especially to error passive. Signed-off-by: Wolfgang Grandegger Signed-off-by: Zhu Yi Signed-off-by: Mark Jonas Cc: linux-stable # >= v4.11 Signed-off-by: Marc Kleine-Budde