Commit graph

20 commits

Author SHA1 Message Date
Simon Glass
f05a7c5ba4 sandbox: i2c: Move priv into a header file
Move this struct into a header file so that dtoc can include it in its
dt-platdata.c file.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-01-05 12:24:41 -07:00
Simon Glass
caa4daa2ae dm: treewide: Rename 'platdata' variables to just 'plat'
We use 'priv' for private data but often use 'platdata' for platform data.
We can't really use 'pdata' since that is ambiguous (it could mean private
or platform data).

Rename some of the latter variables to end with 'plat' for consistency.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13 16:51:08 -07:00
Simon Glass
41575d8e4c dm: treewide: Rename auto_alloc_size members to be shorter
This construct is quite long-winded. In earlier days it made some sense
since auto-allocation was a strange concept. But with driver model now
used pretty universally, we can shorten this to 'auto'. This reduces
verbosity and makes it easier to read.

Coincidentally it also ensures that every declaration is on one line,
thus making dtoc's job easier.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13 08:00:25 -07:00
Simon Glass
fbe27a54eb dm: Add a test for of-platdata parent information
Add a simple test that we can obtain the correct parent for an I2C
device. This requires updating the driver names to match the compatible
strings, adding them to the devicetree and enabling a few options.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-10-29 14:42:18 -06:00
Simon Glass
fefac0b064 dm: acpi: Enhance acpi_get_name()
For many device types it is possible to figure out the name just by
looking at its uclass or parent. Add a function to handle this, since it
allows us to cover the vast majority of cases automatically.

However it is sometimes impossible to figure out an ACPI name for a device
just by looking at its uclass. For example a touch device may have a
vendor-specific name. Add a new "acpi,name" property to allow a custom
name to be created.

With this new feature we can drop the get_name() methods in the sandbox
I2C and SPI drivers. They were only added for testing purposes. Update the
tests to use the new values.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-07-17 14:32:24 +08:00
Simon Glass
31e1787ec1 acpi: Support generation of I2C descriptor
Add a function to write a GPIO descriptor to the generated ACPI code.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-07-17 14:32:24 +08:00
Simon Glass
f7ae49fc4f common: Drop log.h from common header
Move this header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 21:19:18 -04:00
Simon Glass
f3d461521a i2c: Update drivers to use enum for speed
Convert the obvious uses of i2c bus speeds to use the enum.

Use livetree access for code changes.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heiko Schocher <hs@denx.de>
2020-01-27 07:24:02 +01:00
Simon Glass
031a650e13 dm: sandbox: i2c: Use new emulator parent uclass
Update the device tree, sandbox i2c driver and tests to use the new
emulation parent to hold emulators.

Signed-off-by: Simon Glass <sjg@chromium.org>
2018-11-29 09:30:05 -07:00
Tom Rini
83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00
Tom Rini
d024236e5a Remove unnecessary instances of DECLARE_GLOBAL_DATA_PTR
We have a large number of places where while we historically referenced
gd in the code we no longer do, as well as cases where the code added
that line "just in case" during development and never dropped it.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-04-27 14:54:48 -04:00
Simon Glass
aabf79929e dm: sandbox: i2c: Drop fdtdec.h header
This is not needed in this driver. Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01 07:03:16 -06:00
Simon Glass
2e3f1ff63f dm: Convert users from dm_scan_fdt_node() to dm_scan_fdt_dev()
This new function is more convenient for callers, and handles pre-relocation
situations automatically.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-07-27 14:15:07 -06:00
Przemyslaw Marczak
a989ec8dd4 sandbox: i2c: search child emul dev and check its uclass id
The function get_emul() in sandbox i2c bus driver, always returns
first child as i2c emul device. This may only work for i2c devices
with a single child, which is an only i2c emul device.

In case when i2c device has more than one child (e.g. PMIC), and
one is i2c emul, then the function should search it by check uclass
id for each child. This patch add this change to the get_emul().

Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Cc: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>
Tested on sandbox:
Tested-by: Simon Glass <sjg@chromium.org>
2015-05-14 19:58:34 -06:00
Simon Glass
182bf92d19 dm: i2c: Add an explicit test mode to the sandbox I2C driver
At present this driver has a few test features. They are needed for running
the driver model unit tests but are confusing and unnecessary if using
sandbox at the command line. Add a flag to enable the test mode, and don't
enable it by default.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-05-05 20:58:19 -06:00
Simon Glass
1bde67b1f4 dm: i2c: sandbox: Add debugging to the speed limit
Print a debug() message with the I2C speed is exceeded.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Heiko Schocher <hs@denx.de>
2015-05-05 20:58:19 -06:00
Simon Glass
e564f054af dm: core: Add dev_get_uclass_priv() to access uclass private data
Add a convenience function to access the private data that a uclass stores
for each of its devices. Convert over most existing uses for consistency
and to provide an example for others.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-04-16 19:27:42 -06:00
Simon Glass
e6f66ec0e7 dm: i2c: Move slave details to child platdata
At present we go through various contortions to store the I2C's chip
address in its private data. This only exists when the chip is active so
must be set up when it is probed. Until the device is probed we don't
actually record what address it will appear on.

However, now that we can support per-child platform data, we can use that
instead. This allows us to set up the address when the child is bound,
and avoid the messy contortions.

Unfortunately this is a fairly large change and it seems to be difficult to
break it down further.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-01-29 17:09:56 -07:00
Simon Glass
25ab4b0303 dm: i2c: Provide an offset length parameter where needed
Rather than assuming that the chip offset length is 1, allow it to be
provided. This allows chips that don't use the default offset length to
be used (at present they are only supported by the command line 'i2c'
command which sets the offset length explicitly).

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Heiko Schocher <hs@denx.de>
2015-01-29 17:09:53 -07:00
Simon Glass
d19de0d314 dm: i2c: Add a sandbox I2C driver
This driver includes some test features such as only supporting certain
bus speeds. It passes its I2C traffic through to an emulator.

Acked-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-12-11 13:18:42 -07:00