u-boot.git/drivers/core/lists.c, branch v2015.07

dm: core: Add a function to bind a driver for a device tree node

2015-04-30T03:02:32+00:00

Some device tree nodes do not have compatible strings but do require
drivers. This is pretty rare, and somewhat unfortunate. Add a function
to permit creation of a driver for any device tree node.

Signed-off-by: Simon Glass

dm: core: Rename driver data function to dev_get_driver_data()

2015-04-18T17:11:19+00:00

The existing get_get_of_data() function provides access to both the driver's
compatible string and its driver data. However only the latter is actually
useful. Update the interface to reflect this and fix up existing users.

Signed-off-by: Simon Glass 
Reviewed-by: Marek Vasut

dm: core: remove unnecessary return condition in uclass lookup

2014-11-22T09:16:49+00:00

These conditions never happen.
 - There is no real uclass with UCLASS_INVALID id.
 - uclass never becomes NULL because ll_entry_start() always returns
   a valid pointer.

Signed-off-by: Masahiro Yamada 
Acked-by: Simon Glass

dm: core: remove unnecessary return condition in driver lookup

2014-11-22T09:16:49+00:00

The variable "drv" never becomes NULL because ll_entry_start()
always returns a valid pointer even if there are no entries.

The case "n_ents == 0" is covered by the following "for" loop.

Signed-off-by: Masahiro Yamada 
Acked-by: Simon Glass

dm: core: remove meaningless if conditional

2014-11-22T09:16:48+00:00

If the variable "ret" is equal to "-ENOENT", it is trapped at [1] and
never reaches [2].  At [3], the condition "ret != -ENOENT" is always
true.

  if (ret == -ENOENT) {                       <------------------ [1]
          continue;
  } else if (ret == -ENODEV) {
          dm_dbg("Device '%s' has no compatible string\n", name);
          break;
  } else if (ret) {                           <------------------ [2]
          dm_warn("Device tree error at offset %d\n", offset);
          if (!result || ret != -ENOENT)      <------------------ [3]
                  result = ret;
          break;
  }

Signed-off-by: Masahiro Yamada 
Acked-by: Simon Glass

dm: Add a function to bind a device by driver name

2014-11-22T09:16:47+00:00

In some cases we need to manually bind a device to a particular driver.
Add a function to do this.

Signed-off-by: Simon Glass 
Reviewed-by: Jagannadha Sutradharudu Teki 
Acked-by: Heiko Schocher

dm: core: Allow access to the device's driver_id data

2014-11-22T09:16:45+00:00

When the device is created from a device tree node, it matches a compatible
string. Allow access to that string and the associated data.

Signed-off-by: Simon Glass 
Reviewed-by: Tom Rini 
Acked-by: Heiko Schocher

dm: simplify the loop in lists_driver_lookup_name()

2014-10-22T16:32:16+00:00

if (strncmp(name, entry->name, len))
                continue;

        /* Full match */
        if (len == strlen(entry->name))
                return entry;

is equivalent to:

        if (!strcmp(name, entry->name))
                return entry;

The latter is simpler.

Signed-off-by: Masahiro Yamada 
Acked-by: Simon Glass 
Acked-by: Igor Grinberg

dm: Adjust lists_bind_fdt() to return the bound device

2014-09-10T18:59:59+00:00

Allow the caller to find out the device that was bound in response to this
call.

Signed-off-by: Simon Glass

dm: Improve errors and warnings in lists_bind_fdt()

2014-07-23T13:08:37+00:00

Add a debug message for when a device tree node has no driver. Also reword
the warning when a device fails to bind, which was misleading.

Signed-off-by: Simon Glass