kernel.git/drivers/net/can/flexcan.c, branch linux-3.15.y

can: Unify MTU settings for CAN interfaces

2014-03-17T08:20:16Z

CAN interfaces only support MTU values of 16 (CAN 2.0) and 72 (CAN FD). Setting the MTU to other values is pointless but it does not really hurt. With the introduction of the CAN FD support in drivers/net/can a new function to switch the MTU for CAN FD has been introduced. This patch makes use of this can_change_mtu() function to check for correct MTU settings also in legacy CAN (2.0) devices. Signed-off-by: Oliver Hartkopp Signed-off-by: Marc Kleine-Budde

can: flexcan: make use of platform_get_device_id()

2014-03-06T21:20:44Z

This patch replaces an open coded pdev->id_entry by platform_get_device_id(). Signed-off-by: Marc Kleine-Budde

can: flexcan: Remove #ifdef CONFIG_PM_SLEEP

2014-03-06T21:20:43Z

This patch removes #ifdef CONFIG_PM_SLEEP to improve compile coverage. Signed-off-by: Marc Kleine-Budde

can: flexcan: factor out soft reset into seperate funtion

2014-03-03T13:29:51Z

This patch moves the soft reset into a seperate function. Signed-off-by: Marc Kleine-Budde

can: flexcan: flexcan_remove(): add missing netif_napi_del()

2014-03-03T13:29:51Z

This patch adds the missing netif_napi_del() to the flexcan_remove() function. Cc: linux-stable Signed-off-by: Marc Kleine-Budde

can: flexcan: fix transition from and to freeze mode in chip_{,un}freeze

2014-03-03T11:41:46Z

This patch factors out freeze and unfreeze of the CAN core into seperate functions. Experiments have shown that the transition from and to freeze mode may take several microseconds, especially the time entering the freeze mode depends on the current bitrate. This patch adds a while loop which polls the Freeze Mode ACK bit (FRZ_ACK) that indicates a successfull mode change. If the function runs into a timeout a error value is returned. Cc: linux-stable Signed-off-by: Marc Kleine-Budde

can: flexcan: factor out transceiver {en,dis}able into seperate functions

2014-03-03T11:41:39Z

This patch moves the transceiver enable and disable into seperate functions, where the NULL pointer check is hidden. Cc: linux-stable Signed-off-by: Marc Kleine-Budde

can: flexcan: fix transition from and to low power mode in chip_{en,dis}able

2014-03-03T11:41:27Z

In flexcan_chip_enable() and flexcan_chip_disable() fixed delays are used. Experiments have shown that the transition from and to low power mode may take several microseconds. This patch adds a while loop which polls the Low Power Mode ACK bit (LPM_ACK) that indicates a successfull mode change. If the function runs into a timeout a error value is returned. Cc: linux-stable Signed-off-by: Marc Kleine-Budde

can: flexcan: flexcan_open(): fix error path if flexcan_chip_start() fails

2014-03-03T11:41:22Z

If flexcan_chip_start() in flexcan_open() fails, the interrupt is not freed, this patch adds the missing cleanup. Cc: linux-stable Signed-off-by: Marc Kleine-Budde

can: flexcan: fix shutdown: first disable chip, then all interrupts

2014-03-03T11:40:52Z

When shutting down the CAN interface (ifconfig canX down) during high CAN bus loads, the CAN core might hang and freeze the whole CPU. This patch fixes the shutdown sequence by first disabling the CAN core then disabling all interrupts. Cc: linux-stable Signed-off-by: Marc Kleine-Budde