u-boot.git/drivers/timer/timer-uclass.c, branch v2017.05

dm: core: Replace of_offset with accessor

2017-02-08T13:12:14+00:00

At present devices use a simple integer offset to record the device tree
node associated with the device. In preparation for supporting a live
device tree, which uses a node pointer instead, refactor existing code to
access this field through an inline function.

Signed-off-by: Simon Glass

timer: Support clocks via phandle

2016-12-27T16:24:10+00:00

Earlier timer driver needed a clock-frequency property in compatible
device-tree nodes. Another way is to reference a clock via a phandle.

So now timer_pre_probe tries to get clock by reference through device
tree. In case it is impossible to get clock device through the
reference, clock-frequency property of the timer node is read to provide
backward compatibility.

Signed-off-by: Vlad Zakharov 
Reviewed-by: Simon Glass

dm: Use uclass_first_device_err() where it is useful

2016-03-14T21:34:50+00:00

Use this new function in places where it simplifies the code.

Signed-off-by: Simon Glass

timer: Support tracing fully

2016-02-26T15:53:10+00:00

A few of the functions in the timer uclass are not marked with 'notrace'. Fix
this so that tracing can be used with CONFIG_TRACE.

Signed-off-by: Simon Glass

dm: timer: refuse timers with zero clock_rate

2016-01-21T02:06:23+00:00

If a timer has a zero clock_rate, get_tbclk() will return zero for it,
which will cause tick_to_time() to perform a division-by-zero, which will
crash U-Boot.

Signed-off-by: Stephen Warren 
Acked-by: Simon Glass

dm: timer: uclass: Add flag to control sequence numbering

2016-01-21T02:06:21+00:00

Like SPI and I2C, timer devices also have multiple chip
instances. This patch adds the flag 'DM_UC_FLAG_SEQ_ALIAS' in
timer_uclass driver to control device sequence numbering.

Signed-off-by: Mugunthan V N 
Reviewed-by: Simon Glass 
Reviewed-by: Bin Meng 
Reviewed-by: Tom Rini 
Reviewed-by: Simon Glass

dm: timer: uclass: add timer init in uclass driver to add timer device

2016-01-21T02:06:21+00:00

Adding timer init function in timer-uclass driver to create and
initialize the timer device on platforms where u-boot,dm-pre-reloc
is not used. Since there will be multiple timer devices in the
system, adding a tick-timer node in chosen node to know which
timer device to be used as tick timer in u-boot.

Signed-off-by: Mugunthan V N

dm: timer: Support 64-bit counter

2015-12-01T13:23:51+00:00

There are timers with a 64-bit counter value but current timer
uclass driver assumes a 32-bit one. Modify timer_get_count()
to ask timer driver to always return a 64-bit counter value,
and provide an inline helper function timer_conv_64() to handle
the 32-bit/64-bit conversion automatically.

Signed-off-by: Bin Meng 
Acked-by: Simon Glass 
Signed-off-by: Simon Glass

dm: timer: Implement pre_probe()

2015-12-01T13:23:51+00:00

Every timer device needs to have a valid clock frequency and it
can be specified in the device tree. Use pre_probe() to get this
in the timer uclass driver.

Signed-off-by: Bin Meng 
Acked-by: Thomas Chou 
Acked-by: Simon Glass

dm: timer: Fix several nits

2015-12-01T13:23:51+00:00

This changes 'Timer' to 'timer' at several places.

Signed-off-by: Bin Meng 
Acked-by: Thomas Chou 
Reviewed-by: Simon Glass