With this, we can save unnecessary udelay().
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

With the CONFIG_DM_MMC_OPS migration, the .set_ios callback can
return an integer now.  Return an appropriate error value rather
than sudden death by BUG().
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

No more reason to define this function above the ops structure.
Move it near the caller.  Also, change its return type to void
because it never fails.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

Catch up with the DM migration.

As struct dm_mmc_ops does not have .init callback, call the init
function directly from the probe function.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

They are both only referenced in this file.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

Use the generic error number instead of specific error number.
If use the generic error number, it can debug more easier.
Signed-off-by: NJaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NMinkyu Kang <mk7.kang@samsung.com>

This does not have much impact on behavior, but makes code look more
more like Linux.  The use of devm_ioremap() often helps to delete
.remove callbacks entirely.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

The following changes are made to the clock API:
* The concept of "clocks" and "peripheral clocks" are unified; each clock
  provider now implements a single set of clocks. This provides a simpler
  conceptual interface to clients, and better aligns with device tree
  clock bindings.
* Clocks are now identified with a single "struct clk", rather than
  requiring clients to store the clock provider device and clock identity
  values separately. For simple clock consumers, this isolates clients
  from internal details of the clock API.
* clk.h is split so it only contains the client/consumer API, whereas
  clk-uclass.h contains the provider API. This aligns with the recently
  added reset and mailbox APIs.
* clk_ops .of_xlate(), .request(), and .free() are added so providers
  can customize these operations if needed. This also aligns with the
  recently added reset and mailbox APIs.
* clk_disable() is added.
* All users of the current clock APIs are updated.
* Sandbox clock tests are updated to exercise clock lookup via DT, and
  clock enable/disable.
* rkclk_get_clk() is removed and replaced with standard APIs.

Buildman shows no clock-related errors for any board for which buildman
can download a toolchain.

test/py passes for sandbox (which invokes the dm clk test amongst
others).
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Acked-by: NSimon Glass <sjg@chromium.org>

Update the existing drivers to set up this new pointer. This will be required
by the MMC uclass.
Signed-off-by: NSimon Glass <sjg@chromium.org>

Currently, fdtdec_get_addr_size() does not support the address
translation, so it cannot handle device trees with non-straight
"ranges" properties.  (This would be a problem with DTS for UniPhier
ARMv8 SoCs.)
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

Add a driver for the on-chip SD/eMMC host controller used by
UniPhier SoC family.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>