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

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>

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Merge git://git.denx.de/u-boot-video

rockchip: video: rk_hdmi: migrate to livetree

The rk_hdmi (shared functions for multiple HDMI mini-drivers) has been
using devfdt_get_addr() to read the HDMI controller's IO base address.
This will

rockchip: video: rk_hdmi: migrate to livetree

The rk_hdmi (shared functions for multiple HDMI mini-drivers) has been
using devfdt_get_addr() to read the HDMI controller's IO base address.
This will cause a failure with a live tree.

This changes the driver to use dev_read_addr() which is safe both for
flat trees and live trees.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Klaus Goger <klaus.goger@theobroma-systems.com>
Reviewed-by: Anatolij Gustschin <agust@denx.de>

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Merge git://git.denx.de/u-boot-rockchip

Here is additional rk3368 and rk3399 support, rv1108 support,
refactoring HDMI video (brought in from Anatolij's tree to resolve
conflicts), some mkimage fixe

Merge git://git.denx.de/u-boot-rockchip

Here is additional rk3368 and rk3399 support, rv1108 support,
refactoring HDMI video (brought in from Anatolij's tree to resolve
conflicts), some mkimage fixes and a few other things.

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rockchip: video: split RK3288-specific part off from rk_hdmi

To prepare for the addition of RK3399 HDMI support, the HDMI driver is
refactored and broken into a chip-specific and a generic part. Th

rockchip: video: split RK3288-specific part off from rk_hdmi

To prepare for the addition of RK3399 HDMI support, the HDMI driver is
refactored and broken into a chip-specific and a generic part. This
change adds the internal interfaces, makes common/reusable functions
externally visible and splits the RK3288 driver into a separate file.

For the probing of regulators, we reuse the infrastructure created
during the VOP refactoring... i.e. we simply call into the helper
function defined for the VOP.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

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rockchip: video: add mpixelclock settings from Linux driver

The Linux driver now supports higher mpixelclock settings.
Add these to rockchip_phy_config[] and rockchip_mpll_cfg[].

Signed-off-by: Phi

rockchip: video: add mpixelclock settings from Linux driver

The Linux driver now supports higher mpixelclock settings.
Add these to rockchip_phy_config[] and rockchip_mpll_cfg[].

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

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rockchip: video: rk_hdmi: fix implicit definition warnings

When enabling CONFIG_DISPLAY_ROCKCHIP_HDMI, compile-time warning for
the following implicitly defined functions are raised due to a missing

rockchip: video: rk_hdmi: fix implicit definition warnings

When enabling CONFIG_DISPLAY_ROCKCHIP_HDMI, compile-time warning for
the following implicitly defined functions are raised due to a missing
include directive:

drivers/video/rockchip/rk_hdmi.c: In function 'rk_hdmi_probe':
drivers/video/rockchip/rk_hdmi.c:150:2: warning: implicit declaration of function 'rk_setreg' [-Wimplicit-function-declaration]
rk_setreg(&priv->grf->soc_con6, 1 << 15);
^~~~~~~~~
drivers/video/rockchip/rk_hdmi.c:153:2: warning: implicit declaration of function 'rk_clrsetreg' [-Wimplicit-function-declaration]
rk_clrsetreg(&priv->grf->soc_con6, 1 << 4,
^~~~~~~~~~~~

This change fixes this by including <asm/hardware.h> in rk_hdmi.c.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Acked-by: Simon Glass <sjg@chromium.org>

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dm: Rename dev_addr..() functions

These support the flat device tree. We want to use the dev_read_..()
prefix for functions that support both flat tree and live tree. So rename
the existing function

dm: Rename dev_addr..() functions

These support the flat device tree. We want to use the dev_read_..()
prefix for functions that support both flat tree and live tree. So rename
the existing functions to avoid confusion.

In the end we will have:

1. dev_read_addr...() - works on devices, supports flat/live tree
2. devfdt_get_addr...() - current functions, flat tree only
3. of_get_address() etc. - new functions, live tree only

All drivers will be written to use 1. That function will in turn call
either 2 or 3 depending on whether the flat or live tree is in use.

Note this involves changing some dead code - the imx_lpi2c.c file.

Signed-off-by: Simon Glass <sjg@chromium.org>

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rockchip: video: Split out HDMI controller code

Designware HDMI controller and phy are used in other SoCs as well. Split
out platform independent code.

DW HDMI has 8 bit registers but they can be r

rockchip: video: Split out HDMI controller code

Designware HDMI controller and phy are used in other SoCs as well. Split
out platform independent code.

DW HDMI has 8 bit registers but they can be represented as 32 bit
registers as well. Add support to select access mode.

EDID reading code use reading by blocks which is not supported by other
SoCs in general. Make it more general using byte by byte approach, which
is also used in Linux driver.

Finally, not all DW HDMI controllers are accompanied with DW HDMI phy.
Support custom phys by making controller code independent from phy code.

Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Tested-by: Nickey Yang <nickey.yang@rock-chips.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

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Merge git://git.denx.de/u-boot-rockchip

This includes support for rk3188 from Heiko Stübner and and rk3328 from
Kever Yang. Also included is SPL support for rk3399 and a fix for
rk3288 to get it bo

Merge git://git.denx.de/u-boot-rockchip

This includes support for rk3188 from Heiko Stübner and and rk3328 from
Kever Yang. Also included is SPL support for rk3399 and a fix for
rk3288 to get it booting again (spl_early_init()).

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rockchip: video: Remove CSC initialization (HDMI)

Despite the comment in the code, CSC unit is never used. According to
the only public description of DW HDMI controller (i.MX6 manual), CSC
unit is

rockchip: video: Remove CSC initialization (HDMI)

Despite the comment in the code, CSC unit is never used. According to
the only public description of DW HDMI controller (i.MX6 manual), CSC
unit is bypassed in MC_FLOWCTRL register and then actually powered
down in MC_CLKDIS register.

Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Reviewed-by: Simon Glass <sjg@chromium.org>

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rockchip: video: Fix HDMI audio clocks

Function hdmi_lookup_n_cts() is feed with clock in Hz, which gets
compared with clocks in kHz. Fix that by converting all clocks to Hz.

Signed-off-by: Jernej

rockchip: video: Fix HDMI audio clocks

Function hdmi_lookup_n_cts() is feed with clock in Hz, which gets
compared with clocks in kHz. Fix that by converting all clocks to Hz.

Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Reviewed-by: Simon Glass <sjg@chromium.org>

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rockchip: video: fix 83500000 clock mistake in rockchip HDMI

There is one "0" too many in 83500000 mpixelclock in rockchip_mpll_cfg[].
fix it.

Signed-off-by: Nickey Yang <nickey.yang@rock-chips.com>

Merge git://git.denx.de/u-boot-rockchip

rockchip: video: fix mpixelclock in rockchip HDMI

Correct mpixelclock errors in rockchip_phy_config[] and rockchip_mpll_cfg[].

Signed-off-by: Nickey Yang <nickey.yang@rock-chips.com>

Merge branch 'master' of git://git.denx.de/u-boot

Signed-off-by: Stefano Babic <sbabic@denx.de>

Merge git://git.denx.de/u-boot-rockchip

rockchip: video: Avoid using u8 in the HDMI driver

It makes not sense using u8 to hold a value on a 32-bit or 64-bit machine.
It can only bloat the code by forcing the compiler to mask the value.
Ch

rockchip: video: Avoid using u8 in the HDMI driver

It makes not sense using u8 to hold a value on a 32-bit or 64-bit machine.
It can only bloat the code by forcing the compiler to mask the value.
Change it to uint.

Signed-off-by: Simon Glass <sjg@chromium.org>

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rockchip: video: Correct HDMI data source selection

This code currently always selects the second source. It only worked
because both sources are set up.

With the change to only init video devices

rockchip: video: Correct HDMI data source selection

This code currently always selects the second source. It only worked
because both sources are set up.

With the change to only init video devices that are present in the stdout
environment variable, this fails. Fix it.

Signed-off-by: Simon Glass <sjg@chromium.org>

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rockchip: video: Lower hpd wait time

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

rockchip: video: Lower hpd wait time

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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Merge git://git.denx.de/u-boot-dm

clk: convert API to match reset/mailbox style

The following changes are made to the clock API:
* The concept of "clocks" and "peripheral clocks" are unified; each clock
provider now implements a s

clk: convert API to match reset/mailbox style

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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rockchip: video: Add a display driver for rockchip HDMI

Some Rockchip SoCs support HDMI output. Add a display driver for this so
that these displays can be used on supported boards.

Unfortunately t

rockchip: video: Add a display driver for rockchip HDMI

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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