diff --git a/Documentation/devicetree/bindings/display/panel/panel-edp.yaml b/Documentation/devicetree/bindings/display/panel/panel-edp.yaml new file mode 100644 index 000000000000..bb0cf6827e79 --- /dev/null +++ b/Documentation/devicetree/bindings/display/panel/panel-edp.yaml @@ -0,0 +1,188 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/panel/panel-edp.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Probeable (via DP AUX / EDID) eDP Panels with simple poweron sequences + +maintainers: + - Douglas Anderson + +description: | + This binding file can be used to indicate that an eDP panel is connected + to a Embedded DisplayPort AUX bus (see display/dp-aux-bus.yaml) without + actually specifying exactly what panel is connected. This is useful for + the case that more than one different panel could be connected to the + board, either for second-sourcing purposes or to support multiple SKUs + with different LCDs that hook up to a common board. + + As per above, a requirement for using this binding is that the panel is + represented under the DP AUX bus. This means that we can use any + information provided by the DP AUX bus (including the EDID) to identify + the panel. We can use this to identify display size, resolution, and + timings among other things. + + One piece of information about eDP panels that is typically _not_ + provided anywhere on the DP AUX bus is the power sequencing timings. + This is the reason why, historically, we've always had to explicitly + list eDP panels. We solve that here with two tricks. The "worst case" + power on timings for any panels expected to be connected to a board are + specified in these bindings. Once we've powered on, it's expected that + the operating system will lookup the panel in a table (based on EDID + information) to figure out other power sequencing timings. + + eDP panels in general can have somewhat arbitrary power sequencing + requirements. However, even though it's arbitrary in general, the + vast majority of panel datasheets have a power sequence diagram that + looks the exactly the same as every other panel. Each panel datasheet + cares about different timings in this diagram but the fact that the + diagram is so similar means we can come up with a single driver to + handle it. + + These diagrams all look roughly like this, sometimes labeled with + slightly different numbers / lines but all pretty much the same + sequence. This is because much of this diagram comes straight from + the eDP Standard. + + __________________________________________________ + Vdd ___/: :\____ / + _/ : : \_____/ + ::: :<--T10-->::: + : +-----------------------+---------+---------+ + eDP -----------+ Black video | Src vid | Blk vid + + Display : +-----------------------+---------+---------+ + : _______________________:_________:_________: + HPD :| : : | + ___________| : : |_____________ + : : : : + Sink +-----------------------:---------:---------+ + AUX CH -----------+ AUX Ch operational : : +------------- + +-----------------------:---------:---------+ + : : : : + :: :: : : + Src main +------+------+--------------+---------+ + lnk data----------------+LnkTrn| Idle |Valid vid data| Idle/off+------------- + +------+------+--------------+---------+ + : :<-T6->:<-T8->: : + :__:: + LED_EN | | + _____________________________________| |____________________________ + : : + __________:__:_ + PWM | : : | + __________________________| : : |__________________________ + : : : : + _____________:__________:__:_:______ + Bklight ____/: : : : : :\____ + power _______/ :<---T13---->: : : :: \______________ + (Vbl) ::<---------T14--------->: :<-T15->:: + + The above looks fairly complex but, as per above, each panel only cares + about a subset of those timings. + +allOf: + - $ref: panel-common.yaml# + +properties: + compatible: + const: edp-panel + + hpd-reliable-delay-ms: + description: + A fixed amount of time that must be waited after powering on the + panel's power-supply before the HPD signal is a reliable way to know + when the AUX channel is ready. This is useful for panels that glitch + the HPD at the start of power-on. This value is not needed if HPD is + always reliable for all panels that might be connected. + + hpd-absent-delay-ms: + description: + The panel specifies that HPD will be asserted this many milliseconds + from power on (timing T3 in the diagram above). If we have no way to + measure HPD then a fixed delay of this many milliseconds can be used. + This can also be used as a timeout when waiting for HPD. Does not + include the hpd-reliable-delay, so if hpd-reliable-delay was 80 ms + and hpd-absent-delay was 200 ms then we'd do a fixed 80 ms delay and + then we know HPD would assert in the next 120 ms. This value is not + needed if HPD hooked up, either through a GPIO in the panel node or + hooked up directly to the eDP controller. + + backlight: true + enable-gpios: true + port: true + power-supply: true + no-hpd: true + hpd-gpios: true + +additionalProperties: false + +required: + - compatible + - power-supply + +examples: + - | + #include + #include + #include + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + bridge@2d { + compatible = "ti,sn65dsi86"; + reg = <0x2d>; + + interrupt-parent = <&tlmm>; + interrupts = <10 IRQ_TYPE_LEVEL_HIGH>; + + enable-gpios = <&tlmm 102 GPIO_ACTIVE_HIGH>; + + vpll-supply = <&src_pp1800_s4a>; + vccio-supply = <&src_pp1800_s4a>; + vcca-supply = <&src_pp1200_l2a>; + vcc-supply = <&src_pp1200_l2a>; + + clocks = <&rpmhcc RPMH_LN_BB_CLK2>; + clock-names = "refclk"; + + no-hpd; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + endpoint { + remote-endpoint = <&dsi0_out>; + }; + }; + + port@1 { + reg = <1>; + sn65dsi86_out: endpoint { + remote-endpoint = <&panel_in_edp>; + }; + }; + }; + + aux-bus { + panel { + compatible = "edp-panel"; + power-supply = <&pp3300_dx_edp>; + backlight = <&backlight>; + hpd-gpios = <&sn65dsi86_bridge 2 GPIO_ACTIVE_HIGH>; + hpd-reliable-delay-ms = <15>; + + port { + panel_in_edp: endpoint { + remote-endpoint = <&sn65dsi86_out>; + }; + }; + }; + }; + }; + }; diff --git a/MAINTAINERS b/MAINTAINERS index f8e659230c79..f9d5d3ffd18a 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -6022,7 +6022,7 @@ DRM DRIVER FOR SAMSUNG S6D27A1 PANELS M: Markuss Broks S: Maintained F: Documentation/devicetree/bindings/display/panel/samsung,s6d27a1.yaml -F: driver/gpu/drm/panel/panel-samsung-s6d27a1.c +F: drivers/gpu/drm/panel/panel-samsung-s6d27a1.c DRM DRIVER FOR SITRONIX ST7703 PANELS M: Guido Günther @@ -6431,6 +6431,14 @@ T: git git://anongit.freedesktop.org/drm/drm-misc F: drivers/gpu/drm/ttm/ F: include/drm/ttm/ +DRM GPU SCHEDULER +M: Andrey Grodzovsky +L: dri-devel@lists.freedesktop.org +S: Maintained +T: git git://anongit.freedesktop.org/drm/drm-misc +F: drivers/gpu/drm/scheduler/ +F: include/drm/gpu_scheduler.h + DSBR100 USB FM RADIO DRIVER M: Alexey Klimov L: linux-media@vger.kernel.org diff --git a/arch/arm/configs/at91_dt_defconfig b/arch/arm/configs/at91_dt_defconfig index b1564e0aa000..a6310c8abcc3 100644 --- a/arch/arm/configs/at91_dt_defconfig +++ b/arch/arm/configs/at91_dt_defconfig @@ -144,6 +144,7 @@ CONFIG_VIDEO_MT9V032=m CONFIG_DRM=y CONFIG_DRM_ATMEL_HLCDC=y CONFIG_DRM_PANEL_SIMPLE=y +CONFIG_DRM_PANEL_EDP=y CONFIG_FB_ATMEL=y CONFIG_BACKLIGHT_ATMEL_LCDC=y CONFIG_BACKLIGHT_PWM=y diff --git a/arch/arm/configs/exynos_defconfig b/arch/arm/configs/exynos_defconfig index f4e1873912a3..cae09010a799 100644 --- a/arch/arm/configs/exynos_defconfig +++ b/arch/arm/configs/exynos_defconfig @@ -227,6 +227,7 @@ CONFIG_DRM_EXYNOS_DPI=y CONFIG_DRM_EXYNOS_DSI=y CONFIG_DRM_EXYNOS_HDMI=y CONFIG_DRM_PANEL_SIMPLE=y +CONFIG_DRM_PANEL_EDP=y CONFIG_DRM_PANEL_SAMSUNG_LD9040=y CONFIG_DRM_PANEL_SAMSUNG_S6E63J0X03=y CONFIG_DRM_PANEL_SAMSUNG_S6E8AA0=y diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig index ccee86d0045d..43cf8982a671 100644 --- a/arch/arm/configs/imx_v6_v7_defconfig +++ b/arch/arm/configs/imx_v6_v7_defconfig @@ -281,6 +281,7 @@ CONFIG_DRM=y CONFIG_DRM_MSM=y CONFIG_DRM_PANEL_LVDS=y CONFIG_DRM_PANEL_SIMPLE=y +CONFIG_DRM_PANEL_EDP=y CONFIG_DRM_PANEL_SEIKO_43WVF1G=y CONFIG_DRM_TI_TFP410=y CONFIG_DRM_DW_HDMI_AHB_AUDIO=m diff --git a/arch/arm/configs/lpc32xx_defconfig b/arch/arm/configs/lpc32xx_defconfig index 989bcc84e7fb..6c3e4a141963 100644 --- a/arch/arm/configs/lpc32xx_defconfig +++ b/arch/arm/configs/lpc32xx_defconfig @@ -108,6 +108,7 @@ CONFIG_REGULATOR=y CONFIG_REGULATOR_FIXED_VOLTAGE=y CONFIG_DRM=y CONFIG_DRM_PANEL_SIMPLE=y +CONFIG_DRM_PANEL_EDP=y CONFIG_DRM_PL111=y CONFIG_FB_MODE_HELPERS=y CONFIG_BACKLIGHT_CLASS_DEVICE=y diff --git a/arch/arm/configs/multi_v5_defconfig b/arch/arm/configs/multi_v5_defconfig index 80a3ae02d759..fe8d760256a4 100644 --- a/arch/arm/configs/multi_v5_defconfig +++ b/arch/arm/configs/multi_v5_defconfig @@ -194,6 +194,7 @@ CONFIG_VIDEO_ATMEL_ISI=m CONFIG_DRM=y CONFIG_DRM_ATMEL_HLCDC=m CONFIG_DRM_PANEL_SIMPLE=y +CONFIG_DRM_PANEL_EDP=y CONFIG_DRM_ASPEED_GFX=m CONFIG_FB_IMX=y CONFIG_FB_ATMEL=y diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig index ba67c4717dcc..ded8d3e682aa 100644 --- a/arch/arm/configs/multi_v7_defconfig +++ b/arch/arm/configs/multi_v7_defconfig @@ -704,6 +704,7 @@ CONFIG_DRM_TEGRA=y CONFIG_DRM_STM=m CONFIG_DRM_STM_DSI=m CONFIG_DRM_PANEL_SIMPLE=y +CONFIG_DRM_PANEL_EDP=y CONFIG_DRM_PANEL_SAMSUNG_LD9040=m CONFIG_DRM_PANEL_ORISETECH_OTM8009A=m CONFIG_DRM_PANEL_RAYDIUM_RM68200=m diff --git a/arch/arm/configs/omap2plus_defconfig b/arch/arm/configs/omap2plus_defconfig index 2ac2418084ab..d933b787d934 100644 --- a/arch/arm/configs/omap2plus_defconfig +++ b/arch/arm/configs/omap2plus_defconfig @@ -511,6 +511,7 @@ CONFIG_OMAP2_DSS_DSI=y CONFIG_DRM_TILCDC=m CONFIG_DRM_PANEL_DSI_CM=m CONFIG_DRM_PANEL_SIMPLE=m +CONFIG_DRM_PANEL_EDP=m CONFIG_DRM_PANEL_LG_LB035Q02=m CONFIG_DRM_PANEL_NEC_NL8048HL11=m CONFIG_DRM_PANEL_SHARP_LS037V7DW01=m diff --git a/arch/arm/configs/qcom_defconfig b/arch/arm/configs/qcom_defconfig index 26353cbfa968..0daa9c0d298e 100644 --- a/arch/arm/configs/qcom_defconfig +++ b/arch/arm/configs/qcom_defconfig @@ -158,6 +158,7 @@ CONFIG_MEDIA_SUPPORT=y CONFIG_DRM=y CONFIG_DRM_MSM=m CONFIG_DRM_PANEL_SIMPLE=y +CONFIG_DRM_PANEL_EDP=y CONFIG_DRM_ANALOGIX_ANX78XX=m CONFIG_FB=y CONFIG_FRAMEBUFFER_CONSOLE=y diff --git a/arch/arm/configs/realview_defconfig b/arch/arm/configs/realview_defconfig index 4c01e313099f..3ef3521c19db 100644 --- a/arch/arm/configs/realview_defconfig +++ b/arch/arm/configs/realview_defconfig @@ -61,6 +61,7 @@ CONFIG_REGULATOR=y CONFIG_REGULATOR_FIXED_VOLTAGE=y CONFIG_DRM=y CONFIG_DRM_PANEL_SIMPLE=y +CONFIG_DRM_PANEL_EDP=y CONFIG_DRM_DISPLAY_CONNECTOR=y CONFIG_DRM_SIMPLE_BRIDGE=y CONFIG_DRM_PL111=y diff --git a/arch/arm/configs/sama5_defconfig b/arch/arm/configs/sama5_defconfig index 17db3b3e2dd3..fe0d7ccc8fb2 100644 --- a/arch/arm/configs/sama5_defconfig +++ b/arch/arm/configs/sama5_defconfig @@ -160,6 +160,7 @@ CONFIG_VIDEO_MT9V032=m CONFIG_DRM=y CONFIG_DRM_ATMEL_HLCDC=y CONFIG_DRM_PANEL_SIMPLE=y +CONFIG_DRM_PANEL_EDP=y CONFIG_LCD_CLASS_DEVICE=y CONFIG_BACKLIGHT_CLASS_DEVICE=y CONFIG_BACKLIGHT_PWM=y diff --git a/arch/arm/configs/shmobile_defconfig b/arch/arm/configs/shmobile_defconfig index d9a27e4e0914..b772105039f6 100644 --- a/arch/arm/configs/shmobile_defconfig +++ b/arch/arm/configs/shmobile_defconfig @@ -129,6 +129,7 @@ CONFIG_VIDEO_ML86V7667=y CONFIG_DRM=y CONFIG_DRM_RCAR_DU=y CONFIG_DRM_PANEL_SIMPLE=y +CONFIG_DRM_PANEL_EDP=y CONFIG_DRM_DISPLAY_CONNECTOR=y CONFIG_DRM_LVDS_CODEC=y CONFIG_DRM_SII902X=y diff --git a/arch/arm/configs/sunxi_defconfig b/arch/arm/configs/sunxi_defconfig index a60c134c5e04..8ba7935bd039 100644 --- a/arch/arm/configs/sunxi_defconfig +++ b/arch/arm/configs/sunxi_defconfig @@ -108,6 +108,7 @@ CONFIG_DRM_SUN4I_HDMI_CEC=y CONFIG_DRM_SUN8I_DW_HDMI=y CONFIG_DRM_PANEL_LVDS=y CONFIG_DRM_PANEL_SIMPLE=y +CONFIG_DRM_PANEL_EDP=y CONFIG_DRM_SIMPLE_BRIDGE=y CONFIG_DRM_LIMA=y CONFIG_FB_SIMPLE=y diff --git a/arch/arm/configs/tegra_defconfig b/arch/arm/configs/tegra_defconfig index 0965ed0501dc..8a8f12b3e6dd 100644 --- a/arch/arm/configs/tegra_defconfig +++ b/arch/arm/configs/tegra_defconfig @@ -199,6 +199,7 @@ CONFIG_DRM_TEGRA=y CONFIG_DRM_TEGRA_STAGING=y CONFIG_DRM_PANEL_LVDS=y CONFIG_DRM_PANEL_SIMPLE=y +CONFIG_DRM_PANEL_EDP=y CONFIG_DRM_LVDS_CODEC=y CONFIG_FB=y CONFIG_BACKLIGHT_CLASS_DEVICE=y diff --git a/arch/arm/configs/versatile_defconfig b/arch/arm/configs/versatile_defconfig index b703f4757021..d06aa64e05a1 100644 --- a/arch/arm/configs/versatile_defconfig +++ b/arch/arm/configs/versatile_defconfig @@ -57,6 +57,7 @@ CONFIG_GPIO_PL061=y CONFIG_DRM=y CONFIG_DRM_PANEL_ARM_VERSATILE=y CONFIG_DRM_PANEL_SIMPLE=y +CONFIG_DRM_PANEL_EDP=y CONFIG_DRM_DISPLAY_CONNECTOR=y CONFIG_DRM_SIMPLE_BRIDGE=y CONFIG_DRM_PL111=y diff --git a/arch/arm/configs/vexpress_defconfig b/arch/arm/configs/vexpress_defconfig index b5e246dd23f4..947987730eb7 100644 --- a/arch/arm/configs/vexpress_defconfig +++ b/arch/arm/configs/vexpress_defconfig @@ -77,6 +77,7 @@ CONFIG_SENSORS_VEXPRESS=y CONFIG_REGULATOR_VEXPRESS=y CONFIG_DRM=y CONFIG_DRM_PANEL_SIMPLE=y +CONFIG_DRM_PANEL_EDP=y CONFIG_DRM_SII902X=y CONFIG_DRM_PL111=y CONFIG_FB=y diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index 156d96afbbfc..0dfee3651ab8 100644 --- a/arch/arm64/configs/defconfig +++ b/arch/arm64/configs/defconfig @@ -697,6 +697,7 @@ CONFIG_DRM_MSM=m CONFIG_DRM_TEGRA=m CONFIG_DRM_PANEL_LVDS=m CONFIG_DRM_PANEL_SIMPLE=m +CONFIG_DRM_PANEL_EDP=m CONFIG_DRM_PANEL_BOE_TV101WUM_NL6=m CONFIG_DRM_PANEL_MANTIX_MLAF057WE51=m CONFIG_DRM_PANEL_RAYDIUM_RM67191=m diff --git a/drivers/gpu/drm/bridge/ite-it66121.c b/drivers/gpu/drm/bridge/ite-it66121.c index 9dc41a7b9136..06b59b422c69 100644 --- a/drivers/gpu/drm/bridge/ite-it66121.c +++ b/drivers/gpu/drm/bridge/ite-it66121.c @@ -918,11 +918,23 @@ static int it66121_probe(struct i2c_client *client, return -EINVAL; ep = of_graph_get_remote_node(dev->of_node, 1, -1); - if (!ep) - return -EPROBE_DEFER; + if (!ep) { + dev_err(ctx->dev, "The endpoint is unconnected\n"); + return -EINVAL; + } + + if (!of_device_is_available(ep)) { + of_node_put(ep); + dev_err(ctx->dev, "The remote device is disabled\n"); + return -ENODEV; + } ctx->next_bridge = of_drm_find_bridge(ep); of_node_put(ep); + if (!ctx->next_bridge) { + dev_dbg(ctx->dev, "Next bridge not found, deferring probe\n"); + return -EPROBE_DEFER; + } if (!ctx->next_bridge) return -EPROBE_DEFER; diff --git a/drivers/gpu/drm/bridge/panel.c b/drivers/gpu/drm/bridge/panel.c index c916f4b8907e..b32295abd9e7 100644 --- a/drivers/gpu/drm/bridge/panel.c +++ b/drivers/gpu/drm/bridge/panel.c @@ -9,6 +9,7 @@ #include #include #include +#include #include #include #include @@ -332,3 +333,39 @@ struct drm_connector *drm_panel_bridge_connector(struct drm_bridge *bridge) return &panel_bridge->connector; } EXPORT_SYMBOL(drm_panel_bridge_connector); + +#ifdef CONFIG_OF +/** + * devm_drm_of_get_bridge - Return next bridge in the chain + * @dev: device to tie the bridge lifetime to + * @np: device tree node containing encoder output ports + * @port: port in the device tree node + * @endpoint: endpoint in the device tree node + * + * Given a DT node's port and endpoint number, finds the connected node + * and returns the associated bridge if any, or creates and returns a + * drm panel bridge instance if a panel is connected. + * + * Returns a pointer to the bridge if successful, or an error pointer + * otherwise. + */ +struct drm_bridge *devm_drm_of_get_bridge(struct device *dev, + struct device_node *np, + u32 port, u32 endpoint) +{ + struct drm_bridge *bridge; + struct drm_panel *panel; + int ret; + + ret = drm_of_find_panel_or_bridge(np, port, endpoint, + &panel, &bridge); + if (ret) + return ERR_PTR(ret); + + if (panel) + bridge = devm_drm_panel_bridge_add(dev, panel); + + return bridge; +} +EXPORT_SYMBOL(devm_drm_of_get_bridge); +#endif diff --git a/drivers/gpu/drm/drm_bridge.c b/drivers/gpu/drm/drm_bridge.c index 4c68733fa660..7ee29f073857 100644 --- a/drivers/gpu/drm/drm_bridge.c +++ b/drivers/gpu/drm/drm_bridge.c @@ -1232,40 +1232,6 @@ struct drm_bridge *of_drm_find_bridge(struct device_node *np) return NULL; } EXPORT_SYMBOL(of_drm_find_bridge); - -/** - * devm_drm_of_get_bridge - Return next bridge in the chain - * @dev: device to tie the bridge lifetime to - * @np: device tree node containing encoder output ports - * @port: port in the device tree node - * @endpoint: endpoint in the device tree node - * - * Given a DT node's port and endpoint number, finds the connected node - * and returns the associated bridge if any, or creates and returns a - * drm panel bridge instance if a panel is connected. - * - * Returns a pointer to the bridge if successful, or an error pointer - * otherwise. - */ -struct drm_bridge *devm_drm_of_get_bridge(struct device *dev, - struct device_node *np, - u32 port, u32 endpoint) -{ - struct drm_bridge *bridge; - struct drm_panel *panel; - int ret; - - ret = drm_of_find_panel_or_bridge(np, port, endpoint, - &panel, &bridge); - if (ret) - return ERR_PTR(ret); - - if (panel) - bridge = devm_drm_panel_bridge_add(dev, panel); - - return bridge; -} -EXPORT_SYMBOL(devm_drm_of_get_bridge); #endif MODULE_AUTHOR("Ajay Kumar "); diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index e0a30e0ee86a..3bc782b630b9 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -1620,7 +1620,7 @@ EXPORT_SYMBOL(drm_mode_create_tv_properties); * connectors. * * Atomic drivers should use drm_connector_attach_scaling_mode_property() - * instead to correctly assign &drm_connector_state.picture_aspect_ratio + * instead to correctly assign &drm_connector_state.scaling_mode * in the atomic state. */ int drm_mode_create_scaling_mode_property(struct drm_device *dev) @@ -1740,7 +1740,7 @@ EXPORT_SYMBOL(drm_connector_attach_vrr_capable_property); * @scaling_mode_mask: or'ed mask of BIT(%DRM_MODE_SCALE_\*). * * This is used to add support for scaling mode to atomic drivers. - * The scaling mode will be set to &drm_connector_state.picture_aspect_ratio + * The scaling mode will be set to &drm_connector_state.scaling_mode * and can be used from &drm_connector_helper_funcs->atomic_check for validation. * * This is the atomic version of drm_mode_create_scaling_mode_property(). diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 6325877c5fd6..53b342c058be 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -100,122 +100,127 @@ struct detailed_mode_closure { #define LEVEL_GTF2 2 #define LEVEL_CVT 3 +#define EDID_QUIRK(vend, product_id, _quirks) \ +{ \ + .panel_id = drm_edid_encode_panel_id(vend, product_id), \ + .quirks = _quirks \ +} + static const struct edid_quirk { - char vendor[4]; - int product_id; + u32 panel_id; u32 quirks; } edid_quirk_list[] = { /* Acer AL1706 */ - { "ACR", 44358, EDID_QUIRK_PREFER_LARGE_60 }, + EDID_QUIRK("ACR", 44358, EDID_QUIRK_PREFER_LARGE_60), /* Acer F51 */ - { "API", 0x7602, EDID_QUIRK_PREFER_LARGE_60 }, + EDID_QUIRK("API", 0x7602, EDID_QUIRK_PREFER_LARGE_60), /* AEO model 0 reports 8 bpc, but is a 6 bpc panel */ - { "AEO", 0, EDID_QUIRK_FORCE_6BPC }, + EDID_QUIRK("AEO", 0, EDID_QUIRK_FORCE_6BPC), /* BOE model on HP Pavilion 15-n233sl reports 8 bpc, but is a 6 bpc panel */ - { "BOE", 0x78b, EDID_QUIRK_FORCE_6BPC }, + EDID_QUIRK("BOE", 0x78b, EDID_QUIRK_FORCE_6BPC), /* CPT panel of Asus UX303LA reports 8 bpc, but is a 6 bpc panel */ - { "CPT", 0x17df, EDID_QUIRK_FORCE_6BPC }, + EDID_QUIRK("CPT", 0x17df, EDID_QUIRK_FORCE_6BPC), /* SDC panel of Lenovo B50-80 reports 8 bpc, but is a 6 bpc panel */ - { "SDC", 0x3652, EDID_QUIRK_FORCE_6BPC }, + EDID_QUIRK("SDC", 0x3652, EDID_QUIRK_FORCE_6BPC), /* BOE model 0x0771 reports 8 bpc, but is a 6 bpc panel */ - { "BOE", 0x0771, EDID_QUIRK_FORCE_6BPC }, + EDID_QUIRK("BOE", 0x0771, EDID_QUIRK_FORCE_6BPC), /* Belinea 10 15 55 */ - { "MAX", 1516, EDID_QUIRK_PREFER_LARGE_60 }, - { "MAX", 0x77e, EDID_QUIRK_PREFER_LARGE_60 }, + EDID_QUIRK("MAX", 1516, EDID_QUIRK_PREFER_LARGE_60), + EDID_QUIRK("MAX", 0x77e, EDID_QUIRK_PREFER_LARGE_60), /* Envision Peripherals, Inc. EN-7100e */ - { "EPI", 59264, EDID_QUIRK_135_CLOCK_TOO_HIGH }, + EDID_QUIRK("EPI", 59264, EDID_QUIRK_135_CLOCK_TOO_HIGH), /* Envision EN2028 */ - { "EPI", 8232, EDID_QUIRK_PREFER_LARGE_60 }, + EDID_QUIRK("EPI", 8232, EDID_QUIRK_PREFER_LARGE_60), /* Funai Electronics PM36B */ - { "FCM", 13600, EDID_QUIRK_PREFER_LARGE_75 | - EDID_QUIRK_DETAILED_IN_CM }, + EDID_QUIRK("FCM", 13600, EDID_QUIRK_PREFER_LARGE_75 | + EDID_QUIRK_DETAILED_IN_CM), /* LGD panel of HP zBook 17 G2, eDP 10 bpc, but reports unknown bpc */ - { "LGD", 764, EDID_QUIRK_FORCE_10BPC }, + EDID_QUIRK("LGD", 764, EDID_QUIRK_FORCE_10BPC), /* LG Philips LCD LP154W01-A5 */ - { "LPL", 0, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE }, - { "LPL", 0x2a00, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE }, + EDID_QUIRK("LPL", 0, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE), + EDID_QUIRK("LPL", 0x2a00, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE), /* Samsung SyncMaster 205BW. Note: irony */ - { "SAM", 541, EDID_QUIRK_DETAILED_SYNC_PP }, + EDID_QUIRK("SAM", 541, EDID_QUIRK_DETAILED_SYNC_PP), /* Samsung SyncMaster 22[5-6]BW */ - { "SAM", 596, EDID_QUIRK_PREFER_LARGE_60 }, - { "SAM", 638, EDID_QUIRK_PREFER_LARGE_60 }, + EDID_QUIRK("SAM", 596, EDID_QUIRK_PREFER_LARGE_60), + EDID_QUIRK("SAM", 638, EDID_QUIRK_PREFER_LARGE_60), /* Sony PVM-2541A does up to 12 bpc, but only reports max 8 bpc */ - { "SNY", 0x2541, EDID_QUIRK_FORCE_12BPC }, + EDID_QUIRK("SNY", 0x2541, EDID_QUIRK_FORCE_12BPC), /* ViewSonic VA2026w */ - { "VSC", 5020, EDID_QUIRK_FORCE_REDUCED_BLANKING }, + EDID_QUIRK("VSC", 5020, EDID_QUIRK_FORCE_REDUCED_BLANKING), /* Medion MD 30217 PG */ - { "MED", 0x7b8, EDID_QUIRK_PREFER_LARGE_75 }, + EDID_QUIRK("MED", 0x7b8, EDID_QUIRK_PREFER_LARGE_75), /* Lenovo G50 */ - { "SDC", 18514, EDID_QUIRK_FORCE_6BPC }, + EDID_QUIRK("SDC", 18514, EDID_QUIRK_FORCE_6BPC), /* Panel in Samsung NP700G7A-S01PL notebook reports 6bpc */ - { "SEC", 0xd033, EDID_QUIRK_FORCE_8BPC }, + EDID_QUIRK("SEC", 0xd033, EDID_QUIRK_FORCE_8BPC), /* Rotel RSX-1058 forwards sink's EDID but only does HDMI 1.1*/ - { "ETR", 13896, EDID_QUIRK_FORCE_8BPC }, + EDID_QUIRK("ETR", 13896, EDID_QUIRK_FORCE_8BPC), /* Valve Index Headset */ - { "VLV", 0x91a8, EDID_QUIRK_NON_DESKTOP }, - { "VLV", 0x91b0, EDID_QUIRK_NON_DESKTOP }, - { "VLV", 0x91b1, EDID_QUIRK_NON_DESKTOP }, - { "VLV", 0x91b2, EDID_QUIRK_NON_DESKTOP }, - { "VLV", 0x91b3, EDID_QUIRK_NON_DESKTOP }, - { "VLV", 0x91b4, EDID_QUIRK_NON_DESKTOP }, - { "VLV", 0x91b5, EDID_QUIRK_NON_DESKTOP }, - { "VLV", 0x91b6, EDID_QUIRK_NON_DESKTOP }, - { "VLV", 0x91b7, EDID_QUIRK_NON_DESKTOP }, - { "VLV", 0x91b8, EDID_QUIRK_NON_DESKTOP }, - { "VLV", 0x91b9, EDID_QUIRK_NON_DESKTOP }, - { "VLV", 0x91ba, EDID_QUIRK_NON_DESKTOP }, - { "VLV", 0x91bb, EDID_QUIRK_NON_DESKTOP }, - { "VLV", 0x91bc, EDID_QUIRK_NON_DESKTOP }, - { "VLV", 0x91bd, EDID_QUIRK_NON_DESKTOP }, - { "VLV", 0x91be, EDID_QUIRK_NON_DESKTOP }, - { "VLV", 0x91bf, EDID_QUIRK_NON_DESKTOP }, + EDID_QUIRK("VLV", 0x91a8, EDID_QUIRK_NON_DESKTOP), + EDID_QUIRK("VLV", 0x91b0, EDID_QUIRK_NON_DESKTOP), + EDID_QUIRK("VLV", 0x91b1, EDID_QUIRK_NON_DESKTOP), + EDID_QUIRK("VLV", 0x91b2, EDID_QUIRK_NON_DESKTOP), + EDID_QUIRK("VLV", 0x91b3, EDID_QUIRK_NON_DESKTOP), + EDID_QUIRK("VLV", 0x91b4, EDID_QUIRK_NON_DESKTOP), + EDID_QUIRK("VLV", 0x91b5, EDID_QUIRK_NON_DESKTOP), + EDID_QUIRK("VLV", 0x91b6, EDID_QUIRK_NON_DESKTOP), + EDID_QUIRK("VLV", 0x91b7, EDID_QUIRK_NON_DESKTOP), + EDID_QUIRK("VLV", 0x91b8, EDID_QUIRK_NON_DESKTOP), + EDID_QUIRK("VLV", 0x91b9, EDID_QUIRK_NON_DESKTOP), + EDID_QUIRK("VLV", 0x91ba, EDID_QUIRK_NON_DESKTOP), + EDID_QUIRK("VLV", 0x91bb, EDID_QUIRK_NON_DESKTOP), + EDID_QUIRK("VLV", 0x91bc, EDID_QUIRK_NON_DESKTOP), + EDID_QUIRK("VLV", 0x91bd, EDID_QUIRK_NON_DESKTOP), + EDID_QUIRK("VLV", 0x91be, EDID_QUIRK_NON_DESKTOP), + EDID_QUIRK("VLV", 0x91bf, EDID_QUIRK_NON_DESKTOP), /* HTC Vive and Vive Pro VR Headsets */ - { "HVR", 0xaa01, EDID_QUIRK_NON_DESKTOP }, - { "HVR", 0xaa02, EDID_QUIRK_NON_DESKTOP }, + EDID_QUIRK("HVR", 0xaa01, EDID_QUIRK_NON_DESKTOP), + EDID_QUIRK("HVR", 0xaa02, EDID_QUIRK_NON_DESKTOP), /* Oculus Rift DK1, DK2, CV1 and Rift S VR Headsets */ - { "OVR", 0x0001, EDID_QUIRK_NON_DESKTOP }, - { "OVR", 0x0003, EDID_QUIRK_NON_DESKTOP }, - { "OVR", 0x0004, EDID_QUIRK_NON_DESKTOP }, - { "OVR", 0x0012, EDID_QUIRK_NON_DESKTOP }, + EDID_QUIRK("OVR", 0x0001, EDID_QUIRK_NON_DESKTOP), + EDID_QUIRK("OVR", 0x0003, EDID_QUIRK_NON_DESKTOP), + EDID_QUIRK("OVR", 0x0004, EDID_QUIRK_NON_DESKTOP), + EDID_QUIRK("OVR", 0x0012, EDID_QUIRK_NON_DESKTOP), /* Windows Mixed Reality Headsets */ - { "ACR", 0x7fce, EDID_QUIRK_NON_DESKTOP }, - { "HPN", 0x3515, EDID_QUIRK_NON_DESKTOP }, - { "LEN", 0x0408, EDID_QUIRK_NON_DESKTOP }, - { "LEN", 0xb800, EDID_QUIRK_NON_DESKTOP }, - { "FUJ", 0x1970, EDID_QUIRK_NON_DESKTOP }, - { "DEL", 0x7fce, EDID_QUIRK_NON_DESKTOP }, - { "SEC", 0x144a, EDID_QUIRK_NON_DESKTOP }, - { "AUS", 0xc102, EDID_QUIRK_NON_DESKTOP }, + EDID_QUIRK("ACR", 0x7fce, EDID_QUIRK_NON_DESKTOP), + EDID_QUIRK("HPN", 0x3515, EDID_QUIRK_NON_DESKTOP), + EDID_QUIRK("LEN", 0x0408, EDID_QUIRK_NON_DESKTOP), + EDID_QUIRK("LEN", 0xb800, EDID_QUIRK_NON_DESKTOP), + EDID_QUIRK("FUJ", 0x1970, EDID_QUIRK_NON_DESKTOP), + EDID_QUIRK("DEL", 0x7fce, EDID_QUIRK_NON_DESKTOP), + EDID_QUIRK("SEC", 0x144a, EDID_QUIRK_NON_DESKTOP), + EDID_QUIRK("AUS", 0xc102, EDID_QUIRK_NON_DESKTOP), /* Sony PlayStation VR Headset */ - { "SNY", 0x0704, EDID_QUIRK_NON_DESKTOP }, + EDID_QUIRK("SNY", 0x0704, EDID_QUIRK_NON_DESKTOP), /* Sensics VR Headsets */ - { "SEN", 0x1019, EDID_QUIRK_NON_DESKTOP }, + EDID_QUIRK("SEN", 0x1019, EDID_QUIRK_NON_DESKTOP), /* OSVR HDK and HDK2 VR Headsets */ - { "SVR", 0x1019, EDID_QUIRK_NON_DESKTOP }, + EDID_QUIRK("SVR", 0x1019, EDID_QUIRK_NON_DESKTOP), }; /* @@ -1905,6 +1910,44 @@ int drm_add_override_edid_modes(struct drm_connector *connector) } EXPORT_SYMBOL(drm_add_override_edid_modes); +static struct edid *drm_do_get_edid_base_block( + int (*get_edid_block)(void *data, u8 *buf, unsigned int block, + size_t len), + void *data, bool *edid_corrupt, int *null_edid_counter) +{ + int i; + void *edid; + + edid = kmalloc(EDID_LENGTH, GFP_KERNEL); + if (edid == NULL) + return NULL; + + /* base block fetch */ + for (i = 0; i < 4; i++) { + if (get_edid_block(data, edid, 0, EDID_LENGTH)) + goto out; + if (drm_edid_block_valid(edid, 0, false, edid_corrupt)) + break; + if (i == 0 && drm_edid_is_zero(edid, EDID_LENGTH)) { + if (null_edid_counter) + (*null_edid_counter)++; + goto carp; + } + } + if (i == 4) + goto carp; + + return edid; + +carp: + kfree(edid); + return ERR_PTR(-EINVAL); + +out: + kfree(edid); + return NULL; +} + /** * drm_do_get_edid - get EDID data using a custom EDID block read function * @connector: connector we're probing @@ -1938,25 +1981,16 @@ struct edid *drm_do_get_edid(struct drm_connector *connector, if (override) return override; - if ((edid = kmalloc(EDID_LENGTH, GFP_KERNEL)) == NULL) + edid = (u8 *)drm_do_get_edid_base_block(get_edid_block, data, + &connector->edid_corrupt, + &connector->null_edid_counter); + if (IS_ERR_OR_NULL(edid)) { + if (IS_ERR(edid)) + connector_bad_edid(connector, edid, 1); return NULL; - - /* base block fetch */ - for (i = 0; i < 4; i++) { - if (get_edid_block(data, edid, 0, EDID_LENGTH)) - goto out; - if (drm_edid_block_valid(edid, 0, false, - &connector->edid_corrupt)) - break; - if (i == 0 && drm_edid_is_zero(edid, EDID_LENGTH)) { - connector->null_edid_counter++; - goto carp; - } } - if (i == 4) - goto carp; - /* if there's no extensions, we're done */ + /* if there's no extensions or no connector, we're done */ valid_extensions = edid[0x7e]; if (valid_extensions == 0) return (struct edid *)edid; @@ -2010,8 +2044,6 @@ struct edid *drm_do_get_edid(struct drm_connector *connector, return (struct edid *)edid; -carp: - connector_bad_edid(connector, edid, 1); out: kfree(edid); return NULL; @@ -2060,6 +2092,72 @@ struct edid *drm_get_edid(struct drm_connector *connector, } EXPORT_SYMBOL(drm_get_edid); +static u32 edid_extract_panel_id(const struct edid *edid) +{ + /* + * We represent the ID as a 32-bit number so it can easily be compared + * with "==". + * + * NOTE that we deal with endianness differently for the top half + * of this ID than for the bottom half. The bottom half (the product + * id) gets decoded as little endian by the EDID_PRODUCT_ID because + * that's how everyone seems to interpret it. The top half (the mfg_id) + * gets stored as big endian because that makes + * drm_edid_encode_panel_id() and drm_edid_decode_panel_id() easier + * to write (it's easier to extract the ASCII). It doesn't really + * matter, though, as long as the number here is unique. + */ + return (u32)edid->mfg_id[0] << 24 | + (u32)edid->mfg_id[1] << 16 | + (u32)EDID_PRODUCT_ID(edid); +} + +/** + * drm_edid_get_panel_id - Get a panel's ID through DDC + * @adapter: I2C adapter to use for DDC + * + * This function reads the first block of the EDID of a panel and (assuming + * that the EDID is valid) extracts the ID out of it. The ID is a 32-bit value + * (16 bits of manufacturer ID and 16 bits of per-manufacturer ID) that's + * supposed to be different for each different modem of panel. + * + * This function is intended to be used during early probing on devices where + * more than one panel might be present. Because of its intended use it must + * assume that the EDID of the panel is correct, at least as far as the ID + * is concerned (in other words, we don't process any overrides here). + * + * NOTE: it's expected that this function and drm_do_get_edid() will both + * be read the EDID, but there is no caching between them. Since we're only + * reading the first block, hopefully this extra overhead won't be too big. + * + * Return: A 32-bit ID that should be different for each make/model of panel. + * See the functions drm_edid_encode_panel_id() and + * drm_edid_decode_panel_id() for some details on the structure of this + * ID. + */ + +u32 drm_edid_get_panel_id(struct i2c_adapter *adapter) +{ + struct edid *edid; + u32 panel_id; + + edid = drm_do_get_edid_base_block(drm_do_probe_ddc_edid, adapter, + NULL, NULL); + + /* + * There are no manufacturer IDs of 0, so if there is a problem reading + * the EDID then we'll just return 0. + */ + if (IS_ERR_OR_NULL(edid)) + return 0; + + panel_id = edid_extract_panel_id(edid); + kfree(edid); + + return panel_id; +} +EXPORT_SYMBOL(drm_edid_get_panel_id); + /** * drm_get_edid_switcheroo - get EDID data for a vga_switcheroo output * @connector: connector we're probing @@ -2103,25 +2201,6 @@ EXPORT_SYMBOL(drm_edid_duplicate); /*** EDID parsing ***/ -/** - * edid_vendor - match a string against EDID's obfuscated vendor field - * @edid: EDID to match - * @vendor: vendor string - * - * Returns true if @vendor is in @edid, false otherwise - */ -static bool edid_vendor(const struct edid *edid, const char *vendor) -{ - char edid_vendor[3]; - - edid_vendor[0] = ((edid->mfg_id[0] & 0x7c) >> 2) + '@'; - edid_vendor[1] = (((edid->mfg_id[0] & 0x3) << 3) | - ((edid->mfg_id[1] & 0xe0) >> 5)) + '@'; - edid_vendor[2] = (edid->mfg_id[1] & 0x1f) + '@'; - - return !strncmp(edid_vendor, vendor, 3); -} - /** * edid_get_quirks - return quirk flags for a given EDID * @edid: EDID to process @@ -2130,14 +2209,13 @@ static bool edid_vendor(const struct edid *edid, const char *vendor) */ static u32 edid_get_quirks(const struct edid *edid) { + u32 panel_id = edid_extract_panel_id(edid); const struct edid_quirk *quirk; int i; for (i = 0; i < ARRAY_SIZE(edid_quirk_list); i++) { quirk = &edid_quirk_list[i]; - - if (edid_vendor(edid, quirk->vendor) && - (EDID_PRODUCT_ID(edid) == quirk->product_id)) + if (quirk->panel_id == panel_id) return quirk->quirks; } diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index 0b3784941312..369cb76512fe 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -77,14 +77,26 @@ config DRM_PANEL_LVDS backlight handling if the panel is attached to a backlight controller. config DRM_PANEL_SIMPLE - tristate "support for simple panels" + tristate "support for simple panels (other than eDP ones)" + depends on OF + depends on BACKLIGHT_CLASS_DEVICE + depends on PM + select VIDEOMODE_HELPERS + help + DRM panel driver for dumb non-eDP panels that need at most a regulator + and a GPIO to be powered up. Optionally a backlight can be attached so + that it can be automatically turned off when the panel goes into a + low power state. + +config DRM_PANEL_EDP + tristate "support for simple Embedded DisplayPort panels" depends on OF depends on BACKLIGHT_CLASS_DEVICE depends on PM select VIDEOMODE_HELPERS select DRM_DP_AUX_BUS help - DRM panel driver for dumb panels that need at most a regulator and + DRM panel driver for dumb eDP panels that need at most a regulator and a GPIO to be powered up. Optionally a backlight can be attached so that it can be automatically turned off when the panel goes into a low power state. diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index 60c0149fc54a..6e30640b9099 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -7,6 +7,7 @@ obj-$(CONFIG_DRM_PANEL_BOE_TV101WUM_NL6) += panel-boe-tv101wum-nl6.o obj-$(CONFIG_DRM_PANEL_DSI_CM) += panel-dsi-cm.o obj-$(CONFIG_DRM_PANEL_LVDS) += panel-lvds.o obj-$(CONFIG_DRM_PANEL_SIMPLE) += panel-simple.o +obj-$(CONFIG_DRM_PANEL_EDP) += panel-edp.o obj-$(CONFIG_DRM_PANEL_ELIDA_KD35T133) += panel-elida-kd35t133.o obj-$(CONFIG_DRM_PANEL_FEIXIN_K101_IM2BA02) += panel-feixin-k101-im2ba02.o obj-$(CONFIG_DRM_PANEL_FEIYANG_FY07024DI26A30D) += panel-feiyang-fy07024di26a30d.o diff --git a/drivers/gpu/drm/panel/panel-edp.c b/drivers/gpu/drm/panel/panel-edp.c new file mode 100644 index 000000000000..4c37c4f6d26c --- /dev/null +++ b/drivers/gpu/drm/panel/panel-edp.c @@ -0,0 +1,1895 @@ +/* + * Copyright (C) 2013, NVIDIA Corporation. All rights reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sub license, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include