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* video: tegra: refuse to bind to disabled dcsStephen Warren2016-05-17-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This prevents the following boot-time message on any board where only the first DC is in use, yet the DC's DT node is enabled: stdio_add_devices: Video device failed (ret=-22) (This happens on at least Harmony, Ventana, and likely any other Tegra20 board with display enabled other than Seaboard). The Tegra DC's DT node represents a display controller. It may itself drive an integrated RGB display output, or be used by some other display controller such as HDMI. For this reason the DC node itself is not enabled/disabled in DT; the DC itself is considered a shared resource, not the final (board-specific) display output. The node should instantiate a display output driver only if the rgb subnode is enabled. Other output drivers are free to use the DC if they are enabled and their DT node references the DC's DT node. Adapt the Tegra display drivers' bind() routine to only bind to the DC's DT node if the RGB subnode is enabled. Now that the display driver does the right thing, remove the workaround for this issue from Seaboard's DT file. Cc: Thierry Reding <treding@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* tegra: video: Move LCD driver to use the DM PWM driverSimon Glass2016-02-16-0/+4
| | | | | | | | Use the driver-model PWM driver in preference to the old code. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra: video: Convert tegra20 LCD driver to driver modelSimon Glass2016-02-16-0/+4
| | | | | | | | | | | Move this driver over to use driver model. This involves rearranging the code somewhat. The effect is that everything is run from the probe() method. Boards which use this are fixed up, but only seaboard is tested. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra: dts: Sync tegra20.dtsi with Linux v4.4Simon Glass2016-02-16-2/+26
| | | | | | | | | | | | | This file has changed quite a bit since it was set up. Sync it back with Linux v4.4. Adjust the users slightly to cope with the changes: - the host1x node is now called host1x@50000000 - we need a clocks node to provide the clk32k_in phandle - active usb nodes need status = "okay" - active i2c nodes need status = "okay" Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* dm: tegra: dts: Use TEGRA_GPIO() macro for all GPIOsSimon Glass2015-01-29-9/+13
| | | | | | This new method is much easier and matches the kernel. Signed-off-by: Simon Glass <sjg@chromium.org>
* tegra: dts: Add serial port detailsSimon Glass2014-09-10-0/+4
| | | | | | | | | | | | | | | | Some Tegra device tree files do not include information about the serial ports. Add this and also add information about the input clock speed. The console alias needs to be set up to indicate which port is used for the console. Also add a binding file since this is missing. Series-changes; 5 - Add full serial port nodes from Linux tree (commit fc9d4dbe) - Use /chosen/stdout-path instead of /aliases/console to specify the console Signed-off-by: Simon Glass <sjg@chromium.org>
* dts: move device tree sources to arch/$(ARCH)/dts/Masahiro Yamada2014-02-19-0/+191
Unlike Linux Kernel, U-Boot historically had *.dts files under board/$(VENDOR)/dts/ and *.dtsi files under arch/$(ARCH)/dts/. I think arch/$(ARCH)/dts dicretory is a better location to store both *.dts and *.dtsi files. For example, before this commit, board/xilinx/dts directory had both Microblaze dts (microblaze-generic.dts) and ARM dts (zynq-*.dts), which are totally unrelated. This commit moves *.dts to arch/$(ARCH)/dts/ directories, allowing us to describe nicely mutiple DTBs generation in the next commit. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>