Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 01fb9185 authored by Andrzej Pietrasiewicz's avatar Andrzej Pietrasiewicz Committed by Inki Dae
Browse files

drm/exynos: Add driver for Exynos Scaler module 



Exynos Scaler is a hardware module, which processes graphic data fetched
from memory and transfers the resultant dato another memory buffer.
Graphics data can be up/down-scaled, rotated, flipped and converted color
space. Scaler hardware modules are a part of Exynos5420 and newer Exynos
SoCs.

Signed-off-by: default avatarAndrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: default avatarMarek Szyprowski <m.szyprowski@samsung.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarInki Dae <inki.dae@samsung.com>
parent 7a2d5c77

Documentation/devicetree/bindings/gpu/samsung-scaler.txt

0 → 100644
+27 −0
Original line number Diff line number Diff line 
* Samsung Exynos Image Scaler



Required properties:

  - compatible : value should be one of the following:

	(a) "samsung,exynos5420-scaler" for Scaler IP in Exynos5420

	(b) "samsung,exynos5433-scaler" for Scaler IP in Exynos5433



  - reg : Physical base address of the IP registers and length of memory

	  mapped region.



  - interrupts : Interrupt specifier for scaler interrupt, according to format

		 specific to interrupt parent.



  - clocks : Clock specifier for scaler clock, according to generic clock

	     bindings. (See Documentation/devicetree/bindings/clock/exynos*.txt)



  - clock-names : Names of clocks. For exynos scaler, it should be "mscl"

		  on 5420 and "pclk", "aclk" and "aclk_xiu" on 5433.



Example:

	scaler@12800000 {

		compatible = "samsung,exynos5420-scaler";

		reg = <0x12800000 0x1294>;

		interrupts = <0 220 IRQ_TYPE_LEVEL_HIGH>;

		clocks = <&clock CLK_MSCL0>;

		clock-names = "mscl";

	};

drivers/gpu/drm/exynos/Kconfig

+6 −0
Original line number Diff line number Diff line
@@ -110,6 +110,12 @@ config DRM_EXYNOS_ROTATOR 
	help

	  Choose this option if you want to use Exynos Rotator for DRM.



config DRM_EXYNOS_SCALER

	bool "Scaler"

	select DRM_EXYNOS_IPP

	help

	  Choose this option if you want to use Exynos Scaler for DRM.



config DRM_EXYNOS_GSC

	bool "GScaler"

	depends on VIDEO_SAMSUNG_EXYNOS_GSC=n

drivers/gpu/drm/exynos/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -21,6 +21,7 @@ exynosdrm-$(CONFIG_DRM_EXYNOS_G2D) += exynos_drm_g2d.o 
exynosdrm-$(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_SCALER)	+= exynos_drm_scaler.o

exynosdrm-$(CONFIG_DRM_EXYNOS_GSC)	+= exynos_drm_gsc.o

exynosdrm-$(CONFIG_DRM_EXYNOS_MIC)     += exynos_drm_mic.o

drivers/gpu/drm/exynos/exynos_drm_drv.c

+3 −0
Original line number Diff line number Diff line
@@ -266,6 +266,9 @@ static struct exynos_drm_driver_info exynos_drm_drivers[] = { 
	}, {

		DRV_PTR(rotator_driver, CONFIG_DRM_EXYNOS_ROTATOR),

		DRM_COMPONENT_DRIVER

	}, {

		DRV_PTR(scaler_driver, CONFIG_DRM_EXYNOS_SCALER),

		DRM_COMPONENT_DRIVER

	}, {

		DRV_PTR(gsc_driver, CONFIG_DRM_EXYNOS_GSC),

		DRM_COMPONENT_DRIVER

drivers/gpu/drm/exynos/exynos_drm_drv.h

+1 −0
Original line number Diff line number Diff line
@@ -298,6 +298,7 @@ extern struct platform_driver vidi_driver; 
extern struct platform_driver g2d_driver;

extern struct platform_driver fimc_driver;

extern struct platform_driver rotator_driver;

extern struct platform_driver scaler_driver;

extern struct platform_driver gsc_driver;

extern struct platform_driver mic_driver;

#endif