linux.git/drivers/net/can, branch v3.12-rc2

can: mscan: improve clock API use

2013-08-29T20:49:35+00:00

the .get_clock() callback is run from probe() and might allocate
resources, introduce a .put_clock() callback that is run from remove()
to undo any allocation activities

prepare and enable the clocks in open(), disable and unprepare the
clocks in close() if clocks were acquired during probe(), to not assume
knowledge about which activities are done in probe() and remove()

use devm_get_clk() to lookup the SYS and REF clocks, to have the clocks
put upon device shutdown

store pointers to data structures upon successful allocation already
instead of deferral until complete setup, such that subroutines in the
setup sequence may access those data structures as well to track their
resource acquisition

since clock allocation remains optional, the release callback as well as
the enable/disable calls in open/close are optional as well

Cc: linux-can@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Gerhard Sittig 
Signed-off-by: Anatolij Gustschin 
Signed-off-by: Marc Kleine-Budde

can: mscan: add a comment on reg to idx mapping

2013-08-29T20:49:35+00:00

add a comment about the magic of deriving an MSCAN component index
from the peripheral's physical address / register offset

Cc: linux-can@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Gerhard Sittig 
Signed-off-by: Anatolij Gustschin 
Signed-off-by: Marc Kleine-Budde

can: flexcan: use platform_set_drvdata()

2013-08-22T07:40:20+00:00

Use the wrapper functions for getting and setting the driver data using
platform_device instead of using dev_set_drvdata() with &pdev->dev,
so we can directly pass a struct platform_device.

Signed-off-by: Libo Chen 
Signed-off-by: Marc Kleine-Budde

can: at91_can: use platform_set_drvdata()

2013-08-22T07:40:19+00:00

Use the wrapper functions for getting and setting the driver data using
platform_device instead of using dev_set_drvdata() with &pdev->dev,
so we can directly pass a struct platform_device.

Signed-off-by: Libo Chen 
Signed-off-by: Marc Kleine-Budde

can: c_can: fix error checking of priv->instance in probe()

2013-08-22T07:40:19+00:00

This patch adds a type cast from 'unsigned int' to 'int'.

'priv->instance' may less than zero, so need a type cast, the related
warnings (allmodconfig, "EXTRA_CFLAGS=-W"):

  drivers/net/can/c_can/c_can_platform.c:198:3: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits]

Signed-off-by: Chen Gang 
Signed-off-by: Marc Kleine-Budde

can: mcp251x: Allow tuning SPI mode and limit maximal SPI speed

2013-08-21T07:28:29+00:00

Patch allow to use different mode settings for SPI (MODE3 for example)
and limit maximal speed according to IC datasheet.

Signed-off-by: Alexander Shiyan 
Signed-off-by: Marc Kleine-Budde

can: mcp251x: Eliminate irq_flags from driver platform_data

2013-08-21T07:28:29+00:00

Flags is not used by boards, so remove this field from the driver
platform_data.

Signed-off-by: Alexander Shiyan 
Signed-off-by: Marc Kleine-Budde

can: mcp251x: Replace power callbacks with regulator API

2013-08-21T07:28:29+00:00

This patch replaces power callbacks to the regulator API. To improve
the readability of the code, helper for the regulator enable/disable
was added.

Acked-by: Haojian Zhuang 
Signed-off-by: Alexander Shiyan 
Signed-off-by: Marc Kleine-Budde

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

2013-08-16T22:37:26+00:00

can: pcan_usb: fix wrong memcpy() bytes length

2013-08-12T04:51:49+00:00

Fix possibly wrong memcpy() bytes length since some CAN records received from
PCAN-USB could define a DLC field in range [9..15].
In that case, the real DLC value MUST be used to move forward the record pointer
but, only 8 bytes max. MUST be copied into the data field of the struct
can_frame object of the skb given to the network core.

Cc: linux-stable 
Signed-off-by: Stephane Grosjean 
Signed-off-by: Marc Kleine-Budde 
Signed-off-by: David S. Miller