u-boot.git/drivers/core/device.c, branch v2020.04

dm: core: Add a way to iterate through children, probing each

2020-02-06T02:33:45+00:00

It is sometimes useful to process all children, making sure they are
probed first. Add functions to help with this and a macro to make it more
convenient.

Signed-off-by: Simon Glass

dm: core: Add a way to read platdata for all child devices

2020-02-06T02:33:45+00:00

When generating ACPI tables we need to make sure that all devices have
read their platform data, so that they can generate the tables correctly.

Rather than adding this code in ACPI, create a core function to handle it.

Signed-off-by: Simon Glass

dm: core: Use const where possible in device.h

2020-02-06T02:33:45+00:00

Update this header file to use const devices where possible, to permit
callers to also use const.

Signed-off-by: Simon Glass

dm: core: Add a new flag to track platform data

2020-01-07T23:02:38+00:00

We want to avoid allocating platform data twice. This could happen if
device_probe() is called after device_ofdata_to_platdata() for the same
device.

Add a flag to track whether device_ofdata_to_platdata() has been called on
a device. Check the flag to make sure it doesn't happen twice, and clear
the flag when the data is freed.

Signed-off-by: Simon Glass

dm: core: Export a new function to read platdata

2020-01-07T23:02:38+00:00

Add a new internal function, device_ofdata_to_platdata() to handle
allocating private space associated with each device and reading the
platform data from the device tree.

Call this new function from device_probe().

Signed-off-by: Simon Glass

dm: core: Allocate parent data separate from probing parent

2020-01-07T23:02:38+00:00

At present the parent is probed before the child's ofdata_to_platdata()
method is called. Adjust the logic slightly so that probing parents is
not done until afterwards.

Signed-off-by: Simon Glass

dm: core: Move ofdata_to_platdata() call earlier

2020-01-07T23:02:38+00:00

This method is supposed to extract platform data from the device tree. It
should be done before the device itself is probed. Move it earlier in the
device_probe() function.

Signed-off-by: Simon Glass

dm: core: Don't clear active flag twice when probe() fails

2020-01-07T23:02:38+00:00

Remove this duplicated code, since the 'fail' label does this immediately.

Signed-off-by: Simon Glass

common: Move ARM cache operations out of common.h

2019-12-02T23:24:58+00:00

These functions are CPU-related and do not use driver model. Move them to
cpu_func.h

Signed-off-by: Simon Glass 
Reviewed-by: Daniel Schwierzeck 
Reviewed-by: Tom Rini

drivers: clk: Fix using assigned-clocks in the node of the clock it sets up

2019-10-22T14:14:05+00:00

This fixes the case where assigned-clocks is used to define a clock
defaults inside this same clock's node. This is used sometimes to setup a
default parents and/or rate for a clock.

example:
muxed_clock: muxed_clock {
	clocks = <&clk_provider 0>, <&clk_provider 1>;
	#clock-cells = <0>;
	assigned-clocks = <&muxed_clock>;
	assigned-clock-parents = <&clk_provider 1>;
};

It doesn't work in u-boot because the assigned-clocks are setup *before*
the clock is probed. (clk_set_parent() will likely crash or fail if called
before the device probe function)
Making it work by handling "assigned-clocks" in 2 steps: first before the
clk device is probed, and then after the clk device is probed.

Signed-off-by: Jean-Jacques Hiblot