On 19. 6. 24. 오전 4:16, Krzysztof Kozlowski wrote: > On Sun, 23 Jun 2019 at 06:31, Chanwoo Choi <cwchoi00@xxxxxxxxx> wrote: >> >> Hi Krzysztof, >> >> 2019년 6월 23일 (일) 오전 4:20, Krzysztof Kozlowski <krzk@xxxxxxxxxx>님이 작성: >>> >>> Enable support for Mali GPU with Panfrost and Lima drivers for: >>> 1. Samsung Exynos5433 and Exynos7 (having Mali T760), >>> 2. Allwiner A64 and H5 (Mali 400/450). >>> >>> Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx> >>> >>> --- >>> >>> Changes since v1: >>> 1. Enable Lima driver >>> --- >>> arch/arm64/configs/defconfig | 3 ++- >>> 1 file changed, 2 insertions(+), 1 deletion(-) >>> >>> diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig >>> index fbbc065415d4..3d31611368af 100644 >>> --- a/arch/arm64/configs/defconfig >>> +++ b/arch/arm64/configs/defconfig >>> @@ -518,6 +518,8 @@ CONFIG_DRM_HISI_HIBMC=m >>> CONFIG_DRM_HISI_KIRIN=m >>> CONFIG_DRM_MESON=m >>> CONFIG_DRM_PL111=m >>> +CONFIG_DRM_LIMA=m >>> +CONFIG_DRM_PANFROST=m >>> CONFIG_FB=y >>> CONFIG_FB_MODE_HELPERS=y >>> CONFIG_BACKLIGHT_GENERIC=m >>> @@ -718,7 +720,6 @@ CONFIG_ARCH_TEGRA_194_SOC=y >>> CONFIG_ARCH_K3_AM6_SOC=y >>> CONFIG_SOC_TI=y >>> CONFIG_TI_SCI_PM_DOMAINS=y >>> -CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND=y >> >> Exynos5433-tm2 board support the exynos-bus device which >> used the simple_ondmenad governor of devfreq. >> Why do you remove this configuration from the defconfig? > > It is selected by default by DRM_PANFROST. The difference is that > PANFROST selects it as module. The 'y' is chosen because of: > SCSI_UFSHCD [=y] && SCSI_LOWLEVEL [=y] && SCSI [=y] && SCSI_DMA [=y] When I tried to find the history of CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND for defconfig, the following patch[1] added this configuration. [1] b972ff75f2938c39e2205c23ea0e531d36b27f86 - "arm64: defconfig: Enable UFS on msm8996" I think that this patch will affect the opration of 'USF on msm8998'. -- Best Regards, Chanwoo Choi Samsung Electronics
