diff --git a/Documentation/devicetree/bindings/video/exynos-mic.txt b/Documentation/devicetree/bindings/video/exynos-mic.txt new file mode 100644 index 000000000000..0fba2ee6440a --- /dev/null +++ b/Documentation/devicetree/bindings/video/exynos-mic.txt @@ -0,0 +1,51 @@ +Device-Tree bindings for Samsung Exynos SoC mobile image compressor (MIC) + +MIC (mobile image compressor) resides between decon and mipi dsi. Mipi dsi is +not capable to transfer high resoltuion frame data as decon can send. MIC +solves this problem by compressing the frame data by 1/2 before it is +transferred through mipi dsi. The compressed frame data must be uncompressed in +the panel PCB. + +Required properties: +- compatible: value should be "samsung,exynos5433-mic". +- reg: physical base address and length of the MIC registers set and system + register of mic. +- 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 "pclk_mic0", "sclk_rgb_vclk_to_mic0". +- samsung,disp-syscon: the reference node for syscon for DISP block. +- ports: contains a port which is connected to decon node and dsi node. + address-cells and size-cells must 1 and 0, respectively. +- port: contains an endpoint node which is connected to the endpoint in the + decon node or dsi node. The reg value must be 0 and 1 respectively. + +Example: +SoC specific DT entry: +mic: mic@13930000 { + compatible = "samsung,exynos5433-mic"; + reg = <0x13930000 0x48>; + clocks = <&cmu_disp CLK_PCLK_MIC0>, + <&cmu_disp CLK_SCLK_RGB_VCLK_TO_MIC0>; + clock-names = "pclk_mic0", "sclk_rgb_vclk_to_mic0"; + samsung,disp-syscon = <&syscon_disp>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + mic_to_decon: endpoint { + remote-endpoint = <&decon_to_mic>; + }; + }; + + port@1 { + reg = <1>; + mic_to_dsi: endpoint { + remote-endpoint = <&dsi_to_mic>; + }; + }; + }; +}; diff --git a/drivers/gpu/drm/exynos/Kconfig b/drivers/gpu/drm/exynos/Kconfig index 51a4eb564497..12e4e628709f 100644 --- a/drivers/gpu/drm/exynos/Kconfig +++ b/drivers/gpu/drm/exynos/Kconfig @@ -103,3 +103,9 @@ config DRM_EXYNOS_GSC depends on DRM_EXYNOS_IPP && ARCH_EXYNOS5 && !ARCH_MULTIPLATFORM help Choose this option if you want to use Exynos GSC for DRM. + +config DRM_EXYNOS_MIC + bool "Exynos DRM MIC" + depends on (DRM_EXYNOS && DRM_EXYNOS5433_DECON) + help + Choose this option if you want to use Exynos MIC for DRM. diff --git a/drivers/gpu/drm/exynos/Makefile b/drivers/gpu/drm/exynos/Makefile index fbd084d3f658..7de0b1084fcd 100644 --- a/drivers/gpu/drm/exynos/Makefile +++ b/drivers/gpu/drm/exynos/Makefile @@ -22,5 +22,6 @@ exynosdrm-$(CONFIG_DRM_EXYNOS_IPP) += exynos_drm_ipp.o exynosdrm-$(CONFIG_DRM_EXYNOS_FIMC) += exynos_drm_fimc.o exynosdrm-$(CONFIG_DRM_EXYNOS_ROTATOR) += exynos_drm_rotator.o exynosdrm-$(CONFIG_DRM_EXYNOS_GSC) += exynos_drm_gsc.o +exynosdrm-$(CONFIG_DRM_EXYNOS_MIC) += exynos_drm_mic.o obj-$(CONFIG_DRM_EXYNOS) += exynosdrm.o diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c index 591bdecd58da..63a68c60a353 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c @@ -357,6 +357,9 @@ static struct platform_driver *const exynos_drm_kms_drivers[] = { #ifdef CONFIG_DRM_EXYNOS7_DECON &decon_driver, #endif +#ifdef CONFIG_DRM_EXYNOS_MIC + &mic_driver, +#endif #ifdef CONFIG_DRM_EXYNOS_DP &dp_driver, #endif @@ -370,9 +373,6 @@ static struct platform_driver *const exynos_drm_kms_drivers[] = { }; static struct platform_driver *const exynos_drm_non_kms_drivers[] = { -#ifdef CONFIG_DRM_EXYNOS_MIC - &mic_driver, -#endif #ifdef CONFIG_DRM_EXYNOS_G2D &g2d_driver, #endif diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h index 819ce3e0f31a..dd00f160c1e5 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.h +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h @@ -314,4 +314,5 @@ extern struct platform_driver fimc_driver; extern struct platform_driver rotator_driver; extern struct platform_driver gsc_driver; extern struct platform_driver ipp_driver; +extern struct platform_driver mic_driver; #endif diff --git a/drivers/gpu/drm/exynos/exynos_drm_mic.c b/drivers/gpu/drm/exynos/exynos_drm_mic.c new file mode 100644 index 000000000000..8994eab56ba8 --- /dev/null +++ b/drivers/gpu/drm/exynos/exynos_drm_mic.c @@ -0,0 +1,490 @@ +/* + * Copyright (C) 2015 Samsung Electronics Co.Ltd + * Authors: + * 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