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authorDave Airlie <airlied@redhat.com>2017-09-28 05:45:27 +1000
committerDave Airlie <airlied@redhat.com>2017-09-28 05:46:15 +1000
commit29baa82aa55f40d67cfc8138c944fd8880c27e8e (patch)
tree19119a07d3ec8eb1407a68b48ec627239ee3e681 /Documentation
parente19b205be43d11bff638cad4487008c48d21c103 (diff)
parentac6c35a4d8c77083525044a192cb1a8711381e94 (diff)
downloadlinux-29baa82aa55f40d67cfc8138c944fd8880c27e8e.tar.bz2
Merge tag 'drm-misc-next-2017-09-20' of git://anongit.freedesktop.org/git/drm-misc into drm-next
UAPI Changes: Cross-subsystem Changes: Core Changes: - DP SDP defines (Ville) - polish for scdc helpers (Thierry Reding) - fix lifetimes for connector/plane state across crtc changes (Maarten Lankhorst). - sparse fixes (Ville+Thierry) - make legacy kms ioctls all interruptible (Maarten) - push edid override into the edid helpers (out of probe helpers) (Jani) - DP ESI defines for link status (DK) Driver Changes: - drm-panel is now in drm-misc! - minor panel-simple cleanups/refactoring by various folks - drm_bridge_add cleanup (Inki Dae) - constify a few i2c_device_id structs (Arvind Yadav) - More patches from Noralf's fb/gem helper cleanup - bridge/synopsis: reset fix (Philippe Cornu) - fix tracepoint include handling in drivers (Thierry) - rockchip: lvds support (Sandy Huang) - move sun4i into drm-misc fold (Maxime Ripard) - sun4i: refactor driver load + support TCON backend/layer muxing (Chen-Yu Tsai) - pl111: support more pl11x variants (Linus Walleij) - bridge/adv7511: robustify probing/edid handling (Lars-Petersen Clausen) New hw support: - S6E63J0X03 panel (Hoegeun Kwon) - OTM8009A panel (Philippe CORNU) - Seiko 43WVF1G panel (Marco Franchi) - tve200 driver (Linus Walleij) Plus assorted of tiny patches all over, including our first outreachy patches from applicants for the winter round! * tag 'drm-misc-next-2017-09-20' of git://anongit.freedesktop.org/git/drm-misc: (101 commits) drm: add backwards compatibility support for drm_kms_helper.edid_firmware drm: handle override and firmware EDID at drm_do_get_edid() level drm/dp: DPCD register defines for link status within ESI field drm/rockchip: Replace dev_* with DRM_DEV_* drm/tinydrm: Drop driver registered message drm/gem-fb-helper: Use debug message on gem lookup failure drm/imx: Use drm_gem_fb_create() and drm_gem_fb_prepare_fb() drm/bridge: adv7511: Constify HDMI CODEC platform data drm/bridge: adv7511: Enable connector polling when no interrupt is specified drm/bridge: adv7511: Remove private copy of the EDID drm/bridge: adv7511: Properly update EDID when no EDID was found drm/crtc: Convert setcrtc ioctl locking to interruptible. drm/atomic: Convert pageflip ioctl locking to interruptible. drm/legacy: Convert setplane ioctl locking to interruptible. drm/legacy: Convert cursor ioctl locking to interruptible. drm/atomic: Convert atomic ioctl locking to interruptible. drm/atomic: Prepare drm_modeset_lock infrastructure for interruptible waiting, v2. drm/tve200: Clean up panel bridging drm/doc: Update todo.rst drm/dp/mst: Sideband message transaction to power up/down nodes ...
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/admin-guide/kernel-parameters.txt2
-rw-r--r--Documentation/devicetree/bindings/display/faraday,tve200.txt54
-rw-r--r--Documentation/devicetree/bindings/display/panel/orisetech,otm8009a.txt21
-rw-r--r--Documentation/devicetree/bindings/display/panel/samsung,s6e63j0x03.txt24
-rw-r--r--Documentation/devicetree/bindings/display/panel/seiko,43wvf1g.txt23
-rw-r--r--Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt99
-rw-r--r--Documentation/devicetree/bindings/vendor-prefixes.txt1
-rw-r--r--Documentation/gpu/drm-uapi.rst55
-rw-r--r--Documentation/gpu/index.rst1
-rw-r--r--Documentation/gpu/todo.rst26
-rw-r--r--Documentation/gpu/tve200.rst6
11 files changed, 300 insertions, 12 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 05496622b4ef..b24108f2a438 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -854,7 +854,7 @@
The filter can be disabled or changed to another
driver later using sysfs.
- drm_kms_helper.edid_firmware=[<connector>:]<file>[,[<connector>:]<file>]
+ drm.edid_firmware=[<connector>:]<file>[,[<connector>:]<file>]
Broken monitors, graphic adapters, KVMs and EDIDless
panels may send no or incorrect EDID data sets.
This parameter allows to specify an EDID data sets
diff --git a/Documentation/devicetree/bindings/display/faraday,tve200.txt b/Documentation/devicetree/bindings/display/faraday,tve200.txt
new file mode 100644
index 000000000000..82e3bc0b7485
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/faraday,tve200.txt
@@ -0,0 +1,54 @@
+* Faraday TV Encoder TVE200
+
+Required properties:
+
+- compatible: must be one of:
+ "faraday,tve200"
+ "cortina,gemini-tvc", "faraday,tve200"
+
+- reg: base address and size of the control registers block
+
+- interrupts: contains an interrupt specifier for the interrupt
+ line from the TVE200
+
+- clock-names: should contain "PCLK" for the clock line clocking the
+ silicon and "TVE" for the 27MHz clock to the video driver
+
+- clocks: contains phandle and clock specifier pairs for the entries
+ in the clock-names property. See
+ Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+Optional properties:
+
+- resets: contains the reset line phandle for the block
+
+Required sub-nodes:
+
+- port: describes LCD panel signals, following the common binding
+ for video transmitter interfaces; see
+ Documentation/devicetree/bindings/media/video-interfaces.txt
+ This port should have the properties:
+ reg = <0>;
+ It should have one endpoint connected to a remote endpoint where
+ the display is connected.
+
+Example:
+
+display-controller@6a000000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "faraday,tve200";
+ reg = <0x6a000000 0x1000>;
+ interrupts = <13 IRQ_TYPE_EDGE_RISING>;
+ resets = <&syscon GEMINI_RESET_TVC>;
+ clocks = <&syscon GEMINI_CLK_GATE_TVC>,
+ <&syscon GEMINI_CLK_TVC>;
+ clock-names = "PCLK", "TVE";
+
+ port@0 {
+ reg = <0>;
+ display_out: endpoint {
+ remote-endpoint = <&panel_in>;
+ };
+ };
+};
diff --git a/Documentation/devicetree/bindings/display/panel/orisetech,otm8009a.txt b/Documentation/devicetree/bindings/display/panel/orisetech,otm8009a.txt
new file mode 100644
index 000000000000..6862028e7b2e
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/orisetech,otm8009a.txt
@@ -0,0 +1,21 @@
+Orise Tech OTM8009A 3.97" 480x800 TFT LCD panel (MIPI-DSI video mode)
+
+The Orise Tech OTM8009A is a 3.97" 480x800 TFT LCD panel connected using
+a MIPI-DSI video interface. Its backlight is managed through the DSI link.
+
+Required properties:
+ - compatible: "orisetech,otm8009a"
+ - reg: the virtual channel number of a DSI peripheral
+
+Optional properties:
+ - reset-gpios: a GPIO spec for the reset pin (active low).
+
+Example:
+&dsi {
+ ...
+ panel@0 {
+ compatible = "orisetech,otm8009a";
+ reg = <0>;
+ reset-gpios = <&gpioh 7 GPIO_ACTIVE_LOW>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/display/panel/samsung,s6e63j0x03.txt b/Documentation/devicetree/bindings/display/panel/samsung,s6e63j0x03.txt
new file mode 100644
index 000000000000..3f1a8392af7f
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/samsung,s6e63j0x03.txt
@@ -0,0 +1,24 @@
+Samsung S6E63J0X03 1.63" 320x320 AMOLED panel (interface: MIPI-DSI command mode)
+
+Required properties:
+ - compatible: "samsung,s6e63j0x03"
+ - reg: the virtual channel number of a DSI peripheral
+ - vdd3-supply: I/O voltage supply
+ - vci-supply: voltage supply for analog circuits
+ - reset-gpios: a GPIO spec for the reset pin (active low)
+ - te-gpios: a GPIO spec for the tearing effect synchronization signal
+ gpio pin (active high)
+
+Example:
+&dsi {
+ ...
+
+ panel@0 {
+ compatible = "samsung,s6e63j0x03";
+ reg = <0>;
+ vdd3-supply = <&ldo16_reg>;
+ vci-supply = <&ldo20_reg>;
+ reset-gpios = <&gpe0 1 GPIO_ACTIVE_LOW>;
+ te-gpios = <&gpx0 6 GPIO_ACTIVE_HIGH>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/display/panel/seiko,43wvf1g.txt b/Documentation/devicetree/bindings/display/panel/seiko,43wvf1g.txt
new file mode 100644
index 000000000000..aae57ef36cdd
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/seiko,43wvf1g.txt
@@ -0,0 +1,23 @@
+Seiko Instruments Inc. 4.3" WVGA (800 x RGB x 480) TFT with Touch-Panel
+
+Required properties:
+- compatible: should be "sii,43wvf1g".
+- "dvdd-supply": 3v3 digital regulator.
+- "avdd-supply": 5v analog regulator.
+
+Optional properties:
+- backlight: phandle for the backlight control.
+
+Example:
+
+ panel {
+ compatible = "sii,43wvf1g";
+ backlight = <&backlight_display>;
+ dvdd-supply = <&reg_lcd_3v3>;
+ avdd-supply = <&reg_lcd_5v>;
+ port {
+ panel_in: endpoint {
+ remote-endpoint = <&display_out>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt b/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt
new file mode 100644
index 000000000000..da6939efdb43
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt
@@ -0,0 +1,99 @@
+Rockchip RK3288 LVDS interface
+================================
+
+Required properties:
+- compatible: matching the soc type, one of
+ - "rockchip,rk3288-lvds";
+
+- reg: physical base address of the controller and length
+ of memory mapped region.
+- clocks: must include clock specifiers corresponding to entries in the
+ clock-names property.
+- clock-names: must contain "pclk_lvds"
+
+- avdd1v0-supply: regulator phandle for 1.0V analog power
+- avdd1v8-supply: regulator phandle for 1.8V analog power
+- avdd3v3-supply: regulator phandle for 3.3V analog power
+
+- rockchip,grf: phandle to the general register files syscon
+- rockchip,output: "rgb", "lvds" or "duallvds", This describes the output interface
+
+Optional properties:
+- pinctrl-names: must contain a "lcdc" entry.
+- pinctrl-0: pin control group to be used for this controller.
+
+Required nodes:
+
+The lvds has two video ports as described by
+ Documentation/devicetree/bindings/media/video-interfaces.txt
+Their connections are modeled using the OF graph bindings specified in
+ Documentation/devicetree/bindings/graph.txt.
+
+- video port 0 for the VOP input, the remote endpoint maybe vopb or vopl
+- video port 1 for either a panel or subsequent encoder
+
+the lvds panel described by
+ Documentation/devicetree/bindings/display/panel/simple-panel.txt
+
+Panel required properties:
+- ports for remote LVDS output
+
+Panel optional properties:
+- data-mapping: should be "vesa-24","jeida-24" or "jeida-18".
+This describes decribed by:
+ Documentation/devicetree/bindings/display/panel/panel-lvds.txt
+
+Example:
+
+lvds_panel: lvds-panel {
+ compatible = "auo,b101ean01";
+ enable-gpios = <&gpio7 21 GPIO_ACTIVE_HIGH>;
+ data-mapping = "jeida-24";
+
+ ports {
+ panel_in_lvds: endpoint {
+ remote-endpoint = <&lvds_out_panel>;
+ };
+ };
+};
+
+For Rockchip RK3288:
+
+ lvds: lvds@ff96c000 {
+ compatible = "rockchip,rk3288-lvds";
+ rockchip,grf = <&grf>;
+ reg = <0xff96c000 0x4000>;
+ clocks = <&cru PCLK_LVDS_PHY>;
+ clock-names = "pclk_lvds";
+ pinctrl-names = "lcdc";
+ pinctrl-0 = <&lcdc_ctl>;
+ avdd1v0-supply = <&vdd10_lcd>;
+ avdd1v8-supply = <&vcc18_lcd>;
+ avdd3v3-supply = <&vcca_33>;
+ rockchip,output = "rgb";
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ lvds_in: port@0 {
+ reg = <0>;
+
+ lvds_in_vopb: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&vopb_out_lvds>;
+ };
+ lvds_in_vopl: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&vopl_out_lvds>;
+ };
+ };
+
+ lvds_out: port@1 {
+ reg = <1>;
+
+ lvds_out_panel: endpoint {
+ remote-endpoint = <&panel_in_lvds>;
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 1afd298eddd7..6cf1dc5bc77e 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -248,6 +248,7 @@ ontat On Tat Industrial Company
opencores OpenCores.org
option Option NV
ORCL Oracle Corporation
+orisetech Orise Technology
ortustech Ortus Technology Co., Ltd.
ovti OmniVision Technologies
oxsemi Oxford Semiconductor, Ltd.
diff --git a/Documentation/gpu/drm-uapi.rst b/Documentation/gpu/drm-uapi.rst
index 679373b4a03f..a2214cc1f821 100644
--- a/Documentation/gpu/drm-uapi.rst
+++ b/Documentation/gpu/drm-uapi.rst
@@ -168,6 +168,61 @@ IOCTL Support on Device Nodes
.. kernel-doc:: drivers/gpu/drm/drm_ioctl.c
:doc: driver specific ioctls
+Recommended IOCTL Return Values
+-------------------------------
+
+In theory a driver's IOCTL callback is only allowed to return very few error
+codes. In practice it's good to abuse a few more. This section documents common
+practice within the DRM subsystem:
+
+ENOENT:
+ Strictly this should only be used when a file doesn't exist e.g. when
+ calling the open() syscall. We reuse that to signal any kind of object
+ lookup failure, e.g. for unknown GEM buffer object handles, unknown KMS
+ object handles and similar cases.
+
+ENOSPC:
+ Some drivers use this to differentiate "out of kernel memory" from "out
+ of VRAM". Sometimes also applies to other limited gpu resources used for
+ rendering (e.g. when you have a special limited compression buffer).
+ Sometimes resource allocation/reservation issues in command submission
+ IOCTLs are also signalled through EDEADLK.
+
+ Simply running out of kernel/system memory is signalled through ENOMEM.
+
+EPERM/EACCESS:
+ Returned for an operation that is valid, but needs more privileges.
+ E.g. root-only or much more common, DRM master-only operations return
+ this when when called by unpriviledged clients. There's no clear
+ difference between EACCESS and EPERM.
+
+ENODEV:
+ Feature (like PRIME, modesetting, GEM) is not supported by the driver.
+
+ENXIO:
+ Remote failure, either a hardware transaction (like i2c), but also used
+ when the exporting driver of a shared dma-buf or fence doesn't support a
+ feature needed.
+
+EINTR:
+ DRM drivers assume that userspace restarts all IOCTLs. Any DRM IOCTL can
+ return EINTR and in such a case should be restarted with the IOCTL
+ parameters left unchanged.
+
+EIO:
+ The GPU died and couldn't be resurrected through a reset. Modesetting
+ hardware failures are signalled through the "link status" connector
+ property.
+
+EINVAL:
+ Catch-all for anything that is an invalid argument combination which
+ cannot work.
+
+IOCTL also use other error codes like ETIME, EFAULT, EBUSY, ENOTTY but their
+usage is in line with the common meanings. The above list tries to just document
+DRM specific patterns. Note that ENOTTY has the slightly unintuitive meaning of
+"this IOCTL does not exist", and is used exactly as such in DRM.
+
.. kernel-doc:: include/drm/drm_ioctl.h
:internal:
diff --git a/Documentation/gpu/index.rst b/Documentation/gpu/index.rst
index 35d673bf9b56..c36586dad29d 100644
--- a/Documentation/gpu/index.rst
+++ b/Documentation/gpu/index.rst
@@ -15,6 +15,7 @@ Linux GPU Driver Developer's Guide
pl111
tegra
tinydrm
+ tve200
vc4
vga-switcheroo
vgaarbiter
diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst
index 22af55d06ab8..de9512afd611 100644
--- a/Documentation/gpu/todo.rst
+++ b/Documentation/gpu/todo.rst
@@ -75,17 +75,6 @@ helpers.
Contact: Ville Syrjälä, Daniel Vetter, driver maintainers
-Implement deferred fbdev setup in the helper
---------------------------------------------
-
-Many (especially embedded drivers) want to delay fbdev setup until there's a
-real screen plugged in. This is to avoid the dreaded fallback to the low-res
-fbdev default. Many drivers have a hacked-up (and often broken) version of this,
-better to do it once in the shared helpers. Thierry has a patch series, but that
-one needs to be rebased and final polish applied.
-
-Contact: Thierry Reding, Daniel Vetter, driver maintainers
-
Convert early atomic drivers to async commit helpers
----------------------------------------------------
@@ -138,6 +127,8 @@ interfaces to fix these issues:
the acquire context explicitly on stack and then also pass it down into
drivers explicitly so that the legacy-on-atomic functions can use them.
+ Except for some driver code this is done.
+
* A bunch of the vtable hooks are now in the wrong place: DRM has a split
between core vfunc tables (named ``drm_foo_funcs``), which are used to
implement the userspace ABI. And then there's the optional hooks for the
@@ -151,6 +142,8 @@ interfaces to fix these issues:
connector at runtime. That's almost all of them, and would allow us to get
rid of a lot of ``best_encoder`` boilerplate in drivers.
+ This was almost done, but new drivers added a few more cases again.
+
Contact: Daniel Vetter
Get rid of dev->struct_mutex from GEM drivers
@@ -177,6 +170,17 @@ following drivers still use ``struct_mutex``: ``msm``, ``omapdrm`` and
Contact: Daniel Vetter, respective driver maintainers
+Convert instances of dev_info/dev_err/dev_warn to their DRM_DEV_* equivalent
+----------------------------------------------------------------------------
+
+For drivers which could have multiple instances, it is necessary to
+differentiate between which is which in the logs. Since DRM_INFO/WARN/ERROR
+don't do this, drivers used dev_info/warn/err to make this differentiation. We
+now have DRM_DEV_* variants of the drm print macros, so we can start to convert
+those drivers back to using drm-formwatted specific log messages.
+
+Contact: Sean Paul, Maintainer of the driver you plan to convert
+
Core refactorings
=================
diff --git a/Documentation/gpu/tve200.rst b/Documentation/gpu/tve200.rst
new file mode 100644
index 000000000000..69b17b324e12
--- /dev/null
+++ b/Documentation/gpu/tve200.rst
@@ -0,0 +1,6 @@
+==================================
+ drm/tve200 Faraday TV Encoder 200
+==================================
+
+.. kernel-doc:: drivers/gpu/drm/tve200/tve200_drv.c
+ :doc: Faraday TV Encoder 200