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authorDave Airlie <airlied@redhat.com>2018-11-22 12:54:33 +1000
committerDave Airlie <airlied@redhat.com>2018-11-22 12:54:38 +1000
commitb239499f927f79401d51a677bc640980ca630604 (patch)
tree2a434f67ac8eda54e442f9a52a508988c9bbd2e4 /Documentation
parent9235dd441af43599b9cdcce599a3da4083fcad3c (diff)
parent0081cdfe63f0b5e72b14d13f45a93ca7b0b8092f (diff)
downloadblackbird-obmc-linux-b239499f927f79401d51a677bc640980ca630604.tar.gz
blackbird-obmc-linux-b239499f927f79401d51a677bc640980ca630604.zip
Merge tag 'drm-misc-next-2018-11-21' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for v4.21, part 2: UAPI Changes: - Remove syncobj timeline support from drm. Cross-subsystem Changes: - Document canvas provider node in the DT bindings. - Improve documentation for TPO TPG110 DT bindings. Core Changes: - Use explicit state in drm atomic functions. - Add panel quirk for new GPD Win2 firmware. - Add DRM_FORMAT_XYUV8888. - Set the default import/export function in prime to drm_gem_prime_import/export. - Add a separate drm_gem_object_funcs, to stop relying on dev->driver->*gem* functions. - Make sure that tinydrm sets the virtual address also on imported buffers. Driver Changes: - Support active-low data enable signal in sun4i. - Fix scaling in vc4. - Use canvas provider node in meson. - Remove unused variables in sti and qxl and cirrus. - Add overlay plane support and primary plane scaling to meson. - i2c fixes in drm/bridge/sii902x - Fix mailbox read size in rockchip. - Spelling fix in panel/s6d16d0. - Remove unnecessary null check from qxl_bo_unref. - Remove unused arguments from qxl_bo_pin. - Fix qxl cursor pinning. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/9c0409e3-a85f-d2af-b4eb-baf1eb8bbae4@linux.intel.com
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/display/amlogic,meson-vpu.txt2
-rw-r--r--Documentation/devicetree/bindings/display/panel/tpo,tpg110.txt81
-rw-r--r--Documentation/gpu/todo.rst13
3 files changed, 67 insertions, 29 deletions
diff --git a/Documentation/devicetree/bindings/display/amlogic,meson-vpu.txt b/Documentation/devicetree/bindings/display/amlogic,meson-vpu.txt
index 057b81335775..c65fd7a7467c 100644
--- a/Documentation/devicetree/bindings/display/amlogic,meson-vpu.txt
+++ b/Documentation/devicetree/bindings/display/amlogic,meson-vpu.txt
@@ -67,6 +67,8 @@ Required properties:
Optional properties:
- power-domains: Optional phandle to associated power domain as described in
the file ../power/power_domain.txt
+- amlogic,canvas: phandle to canvas provider node as described in the file
+ ../soc/amlogic/amlogic,canvas.txt
Required nodes:
diff --git a/Documentation/devicetree/bindings/display/panel/tpo,tpg110.txt b/Documentation/devicetree/bindings/display/panel/tpo,tpg110.txt
index f5e3c6f2095a..40f3d7c713bb 100644
--- a/Documentation/devicetree/bindings/display/panel/tpo,tpg110.txt
+++ b/Documentation/devicetree/bindings/display/panel/tpo,tpg110.txt
@@ -1,47 +1,70 @@
TPO TPG110 Panel
================
-This binding builds on the DPI bindings, adding a few properties
-as a superset of a DPI. See panel-dpi.txt for the required DPI
-bindings.
+This panel driver is a component that acts as an intermediary
+between an RGB output and a variety of panels. The panel
+driver is strapped up in electronics to the desired resolution
+and other properties, and has a control interface over 3WIRE
+SPI. By talking to the TPG110 over SPI, the strapped properties
+can be discovered and the hardware is therefore mostly
+self-describing.
+
+ +--------+
+SPI -> | TPO | -> physical display
+RGB -> | TPG110 |
+ +--------+
+
+If some electrical strap or alternate resolution is desired,
+this can be set up by taking software control of the display
+over the SPI interface. The interface can also adjust
+for properties of the display such as gamma correction and
+certain electrical driving levels.
+
+The TPG110 does not know the physical dimensions of the panel
+connected, so this needs to be specified in the device tree.
+
+It requires a GPIO line for control of its reset line.
+
+The serial protocol has line names that resemble I2C but the
+protocol is not I2C but 3WIRE SPI.
Required properties:
-- compatible : "tpo,tpg110"
+- compatible : one of:
+ "ste,nomadik-nhk15-display", "tpo,tpg110"
+ "tpo,tpg110"
- grestb-gpios : panel reset GPIO
-- scen-gpios : serial control enable GPIO
-- scl-gpios : serial control clock line GPIO
-- sda-gpios : serial control data line GPIO
+- width-mm : see display/panel/panel-common.txt
+- height-mm : see display/panel/panel-common.txt
+
+The device needs to be a child of an SPI bus, see
+spi/spi-bus.txt. The SPI child must set the following
+properties:
+- spi-3wire
+- spi-max-frequency = <3000000>;
+as these are characteristics of this device.
-Required nodes:
-- Video port for DPI input, see panel-dpi.txt
-- Panel timing for DPI setup, see panel-dpi.txt
+The device node can contain one 'port' child node with one child
+'endpoint' node, according to the bindings defined in
+media/video-interfaces.txt. This node should describe panel's video bus.
Example
-------
-panel {
- compatible = "tpo,tpg110", "panel-dpi";
- grestb-gpios = <&stmpe_gpio44 5 GPIO_ACTIVE_LOW>;
- scen-gpios = <&gpio0 6 GPIO_ACTIVE_LOW>;
- scl-gpios = <&gpio0 5 GPIO_ACTIVE_HIGH>;
- sda-gpios = <&gpio0 4 GPIO_ACTIVE_HIGH>;
+panel: display@0 {
+ compatible = "tpo,tpg110";
+ reg = <0>;
+ spi-3wire;
+ /* 320 ns min period ~= 3 MHz */
+ spi-max-frequency = <3000000>;
+ /* Width and height from data sheet */
+ width-mm = <116>;
+ height-mm = <87>;
+ grestb-gpios = <&foo_gpio 5 GPIO_ACTIVE_LOW>;
backlight = <&bl>;
port {
nomadik_clcd_panel: endpoint {
- remote-endpoint = <&nomadik_clcd_pads>;
+ remote-endpoint = <&foo>;
};
};
-
- panel-timing {
- clock-frequency = <33200000>;
- hactive = <800>;
- hback-porch = <216>;
- hfront-porch = <40>;
- hsync-len = <1>;
- vactive = <480>;
- vback-porch = <35>;
- vfront-porch = <10>;
- vsync-len = <1>;
- };
};
diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst
index 5c9d86c962af..31ef4adc91c9 100644
--- a/Documentation/gpu/todo.rst
+++ b/Documentation/gpu/todo.rst
@@ -234,6 +234,19 @@ efficient.
Contact: Daniel Vetter
+Defaults for .gem_prime_import and export
+-----------------------------------------
+
+Most drivers don't need to set drm_driver->gem_prime_import and
+->gem_prime_export now that drm_gem_prime_import() and drm_gem_prime_export()
+are the default.
+
+struct drm_gem_object_funcs
+---------------------------
+
+GEM objects can now have a function table instead of having the callbacks on the
+DRM driver struct. This is now the preferred way and drivers can be moved over.
+
Core refactorings
=================
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