linux-kernel - Re: [PATCH 1/3] arm64: defconfig: Enable DRM and LPASS drivers for Exynos5433 and Exynos7

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Date:   Tue, 14 Mar 2017 15:16:11 +0100
From:   Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     Krzysztof Kozlowski <krzk@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Kukjin Kim <kgene@...nel.org>,
        Javier Martinez Canillas <javier@....samsung.com>,
        Arnd Bergmann <arnd@...db.de>,
        Kevin Hilman <khilman@...libre.com>,
        Olof Johansson <olof@...om.net>, linux-kernel@...r.kernel.org,
        linux-samsung-soc@...r.kernel.org
Subject: Re: [PATCH 1/3] arm64: defconfig: Enable DRM and LPASS drivers for
 Exynos5433 and Exynos7


Hi,

On Saturday, March 11, 2017 11:38:54 PM Krzysztof Kozlowski wrote:
> Enable drivers specific to Exynos5433 and Exynos7:
> 1. MFD Low Power Audio SubSystem (LPASS),
> 2. Entire DRM stack (display, outputs, additional sub-blocks),
> 3. Drivers for video-related sub-blocks (JPEG, Multi Format Codec,
>    GScaler).
> 
> Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
> ---
>  arch/arm64/configs/defconfig | 18 ++++++++++++++++++
>  1 file changed, 18 insertions(+)
> 
> diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
> index 5e7fa211eb0a..81515cbd2fe8 100644
> --- a/arch/arm64/configs/defconfig
> +++ b/arch/arm64/configs/defconfig
> @@ -302,6 +302,7 @@ CONFIG_RENESAS_WDT=y
>  CONFIG_S3C2410_WATCHDOG=y
>  CONFIG_MESON_GXBB_WATCHDOG=m
>  CONFIG_MESON_WATCHDOG=m
> +CONFIG_MFD_EXYNOS_LPASS=m
>  CONFIG_MFD_MAX77620=y
>  CONFIG_MFD_RK808=y
>  CONFIG_MFD_SPMI_PMIC=y
> @@ -327,10 +328,27 @@ CONFIG_MEDIA_CONTROLLER=y
>  CONFIG_VIDEO_V4L2_SUBDEV_API=y
>  # CONFIG_DVB_NET is not set
>  CONFIG_V4L_MEM2MEM_DRIVERS=y
> +CONFIG_VIDEO_SAMSUNG_S5P_JPEG=m
> +CONFIG_VIDEO_SAMSUNG_S5P_MFC=m
> +CONFIG_VIDEO_SAMSUNG_EXYNOS_GSC=m
>  CONFIG_VIDEO_RENESAS_FCP=m
>  CONFIG_VIDEO_RENESAS_VSP1=m
>  CONFIG_DRM=m
>  CONFIG_DRM_NOUVEAU=m
> +CONFIG_DRM_EXYNOS=m
> +CONFIG_DRM_EXYNOS_FIMD=y
> +CONFIG_DRM_EXYNOS5433_DECON=y
> +CONFIG_DRM_EXYNOS7_DECON=y
> +CONFIG_DRM_EXYNOS_MIXER=y
> +CONFIG_DRM_EXYNOS_VIDI=y
> +CONFIG_DRM_EXYNOS_DPI=y
> +CONFIG_DRM_EXYNOS_DSI=y
> +CONFIG_DRM_EXYNOS_HDMI=y
> +CONFIG_DRM_EXYNOS_MIC=y
> +CONFIG_DRM_EXYNOS_G2D=y
> +CONFIG_DRM_EXYNOS_IPP=y
> +CONFIG_DRM_EXYNOS_FIMC=y
> +CONFIG_DRM_EXYNOS_ROTATOR=y

I would prefer to enable only sub-drivers that are actually
used on Exynos5433/Exynos7 hardware, i.e. currently only
exynos4.dtsi uses compatibles for FIMC and rotator drivers
(I have not checked all sub-drivers).

>  CONFIG_DRM_RCAR_DU=m
>  CONFIG_DRM_RCAR_HDMI=y
>  CONFIG_DRM_RCAR_LVDS=y

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics