From: Joonyoung Shim Date: Fri, 12 Jun 2015 12:59:00 +0000 (+0900) Subject: drm/exynos: add Exynos5433 decon driver X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=c8466a9166b00ecb0c6f768baf70636fe15f63ef;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git drm/exynos: add Exynos5433 decon driver DECON(Display and Enhancement Controller) is new IP replacing FIMD in Exynos5433. This patch adds Exynos5433 decon driver. Signed-off-by: Joonyoung Shim Signed-off-by: Hyungwon Hwang Signed-off-by: Inki Dae --- diff --git a/Documentation/devicetree/bindings/video/exynos5433-decon.txt b/Documentation/devicetree/bindings/video/exynos5433-decon.txt new file mode 100644 index 000000000000..377afbf5122a --- /dev/null +++ b/Documentation/devicetree/bindings/video/exynos5433-decon.txt @@ -0,0 +1,65 @@ +Device-Tree bindings for Samsung Exynos SoC display controller (DECON) + +DECON (Display and Enhancement Controller) is the Display Controller for the +Exynos series of SoCs which transfers the image data from a video memory +buffer to an external LCD interface. + +Required properties: +- compatible: value should be "samsung,exynos5433-decon"; +- reg: physical base address and length of the DECON registers set. +- interrupts: should contain a list of all DECON IP block interrupts in the + order: VSYNC, LCD_SYSTEM. The interrupt specifier format + depends on the interrupt controller used. +- interrupt-names: should contain the interrupt names: "vsync", "lcd_sys" + in the same order as they were listed in the interrupts + property. +- clocks: must include clock specifiers corresponding to entries in the + clock-names property. +- clock-names: list of clock names sorted in the same order as the clocks + property. Must contain "aclk_decon", "aclk_smmu_decon0x", + "aclk_xiu_decon0x", "pclk_smmu_decon0x", clk_decon_vclk", + "sclk_decon_eclk" +- ports: contains a port which is connected to mic node. address-cells and + size-cells must 1 and 0, respectively. +- port: contains an endpoint node which is connected to the endpoint in the mic + node. The reg value muset be 0. +- i80-if-timings: specify whether the panel which is connected to decon uses + i80 lcd interface or mipi video interface. This node contains + no timing information as that of fimd does. Because there is + no register in decon to specify i80 interface timing value, + it is not needed, but make it remain to use same kind of node + in fimd and exynos7 decon. + +Example: +SoC specific DT entry: +decon: decon@13800000 { + compatible = "samsung,exynos5433-decon"; + reg = <0x13800000 0x2104>; + clocks = <&cmu_disp CLK_ACLK_DECON>, <&cmu_disp CLK_ACLK_SMMU_DECON0X>, + <&cmu_disp CLK_ACLK_XIU_DECON0X>, + <&cmu_disp CLK_PCLK_SMMU_DECON0X>, + <&cmu_disp CLK_SCLK_DECON_VCLK>, + <&cmu_disp CLK_SCLK_DECON_ECLK>; + clock-names = "aclk_decon", "aclk_smmu_decon0x", "aclk_xiu_decon0x", + "pclk_smmu_decon0x", "sclk_decon_vclk", "sclk_decon_eclk"; + interrupt-names = "vsync", "lcd_sys"; + interrupts = <0 202 0>, <0 203 0>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + decon_to_mic: endpoint { + remote-endpoint = <&mic_to_decon>; + }; + }; + }; +}; + +Board specific DT entry: +&decon { + i80-if-timings { + }; +}; diff --git a/drivers/gpu/drm/exynos/Kconfig b/drivers/gpu/drm/exynos/Kconfig index ddb7c8a26bfc..51a4eb564497 100644 --- a/drivers/gpu/drm/exynos/Kconfig +++ b/drivers/gpu/drm/exynos/Kconfig @@ -24,6 +24,12 @@ config DRM_EXYNOS_FIMD help Choose this option if you want to use Exynos FIMD for DRM. +config DRM_EXYNOS5433_DECON + bool "Exynos5433 DRM DECON" + depends on DRM_EXYNOS + help + Choose this option if you want to use Exynos5433 DECON for DRM. + config DRM_EXYNOS7_DECON bool "Exynos7 DRM DECON" depends on DRM_EXYNOS && !FB_S3C diff --git a/drivers/gpu/drm/exynos/Makefile b/drivers/gpu/drm/exynos/Makefile index cc90679cfc06..fbd084d3f658 100644 --- a/drivers/gpu/drm/exynos/Makefile +++ b/drivers/gpu/drm/exynos/Makefile @@ -10,6 +10,7 @@ exynosdrm-y := exynos_drm_drv.o exynos_drm_encoder.o \ exynosdrm-$(CONFIG_DRM_EXYNOS_IOMMU) += exynos_drm_iommu.o exynosdrm-$(CONFIG_DRM_EXYNOS_FIMD) += exynos_drm_fimd.o +exynosdrm-$(CONFIG_DRM_EXYNOS5433_DECON) += exynos5433_drm_decon.o exynosdrm-$(CONFIG_DRM_EXYNOS7_DECON) += exynos7_drm_decon.o exynosdrm-$(CONFIG_DRM_EXYNOS_DPI) += exynos_drm_dpi.o exynosdrm-$(CONFIG_DRM_EXYNOS_DSI) += exynos_drm_dsi.o diff --git a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c new file mode 100644 index 000000000000..8b1225f245fc --- /dev/null +++ b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c @@ -0,0 +1,660 @@ +/* drivers/gpu/drm/exynos5433_drm_decon.c + * + * Copyright (C) 2015 Samsung Electronics Co.Ltd + * Authors: + * Joonyoung Shim + * Hyungwon Hwang + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundationr + */ + +#include +#include +#include +#include +#include + +#include