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The current code picks the first available clock. In U-Boot proper this is
the oscillator device, not the SoC clock device. As a result the HDMI display
does not work.
Fix this by calling rockchip_get_clk() instead.
Fixes: 135aa950 (clk: convert API to match reset/mailbox style)
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
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Waiting 30 seconds for the hpd to go high seems a bit much, especially
on headless boots. Lowering the timeout to 300ms.
Sending as RFC because frankly i don't know what a sensible timeout is
here, but 30 seconds is clearly not it :)
Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Reviewed-by: Simon Glass <sjg@chromium.org>
Dropped RFC tag:
Signed-off-by: Simon Glass <sjg@chromium.org>
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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: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
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Enable this option to correct display artifacts when a write-back cache is
in use.
Signed-off-by: Simon Glass <sjg@chromium.org>
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LVDS have a different display out mode, add code to get right flag.
The vop_ip decide display device and the remote_vop_id decide which
vop was being used. So we should use the remote_vop_id to set DCLK_VOP.
Signed-off-by: Jacob Chen <jacob-chen@iotwrt.com>
Acked-by: Simon Glass <sjg@chromium.org>
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Some Rockchip SoCs support LVDS output. Add a display driver for this so
that these displays can be used on supported boards.
Signed-off-by: Jacob Chen <jacob-chen@iotwrt.com>
Acked-by: Simon Glass <sjg@chromium.org>
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Some rockchip SoCs include video output (VOP). Add a driver to support this.
It can output via a display driver (UCLASS_DISPLAY) and currently HDMI and
eDP are supported.
Signed-off-by: Simon Glass <sjg@chromium.org>
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Some Rockchip SoCs support embedded DisplayPort output. Add a display driver
for this so that these displays can be used on supported boards.
Signed-off-by: Simon Glass <sjg@chromium.org>
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Some Rockchip SoCs support HDMI output. Add a display driver for this so
that these displays can be used on supported boards.
Unfortunately this driver is not fully functional. It cannot reliably read
EDID information over HDMI. This seems to be due to the clocks being
incorrect - the I2C bus speed appears to be up to 100x slower than the
clock settings indicate. The root cause may be in the clock logic.
Signed-off-by: Simon Glass <sjg@chromium.org>
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