u-boot.git/drivers/timer/timer-uclass.c, branch v2017.11

dm: timer: handle being called before dm_root is ready

2017-09-18T18:40:33+00:00

When used with bootstage recording, dm_timer_init may be called
surprisingly early: i.e. before dm_root is ready. To deal with
this case, we explicitly check for this condition and return
-EAGAIN to the caller (refer to drivers/timer/rockchip_timer.c
for a case where this is needed/used).

Signed-off-by: Philipp Tomsich 
Reviewed-by: Simon Glass 
Acked-by: Philipp Tomsich

dm: timer: Convert to livetree

2017-09-18T18:40:33+00:00

This updates dm_timer_init to support a live tree and deals with
some fallout (i.e. the need to restructure the code such, that we
don't need multiple discontinuous #if CONFIG_IS_ENABLED blocks).

Signed-off-by: Philipp Tomsich 
Reviewed-by: Simon Glass 
Acked-by: Philipp Tomsich

timer: add OF_PLATDATA support for timer-uclass

2017-08-13T15:12:36+00:00

The timer-uclass depends on full OF_CONTROL through its interrogation
of /chosen and the code to determine the clock-frequency.

For the OF_PLATDATA case, these code-paths are disabled and it becomes
the timer driver's responsibility to correctly set the clock-frequency
in the uclass priv-data.

Signed-off-by: Philipp Tomsich 
Reviewed-by: Simon Glass

dm: core: Update lists_bind_fdt() to use ofnode

2017-06-01T13:03:08+00:00

Adjust this function to use an ofnode instead of an offset, so it can be
used with livetree. This involves updating all callers.

Signed-off-by: Simon Glass

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