From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yong Wu Subject: [PATCH 00/13] Clean up "mediatek,larb" after adding device_link Date: Tue, 1 Jan 2019 12:51:03 +0800 Message-ID: <1546318276-18993-1-git-send-email-yong.wu@mediatek.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: Joerg Roedel , Greg Kroah-Hartman , Matthias Brugger , Rob Herring Cc: youlin.pei-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Nicolas Boichat , arnd-r2nGTMty4D4@public.gmane.org, srv_heupstream-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org, Will Deacon , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Tomasz Figa , iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, yingjoe.chen-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org, Robin Murphy , linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: iommu@lists.linux-foundation.org MediaTek IOMMU block diagram always like below: M4U | smi-common | ------------- | | ... | | larb1 larb2 | | vdec venc All the consumer connect with smi-larb, then connect with smi-common. MediaTek IOMMU don't have its power-domain. When the consumer works, it should enable the smi-larb's power which also need enable the smi-common's power firstly. Thus, Firstly, use the device link connect the consumer and the smi-larbs. then add device link between the smi-larb and smi-common. The ref_count of the device_link normally is over 1, when the consumer device driver is removed, we should remove all the device_link, Hence, I add the patch "driver core: xxx" at the beginning of this patchset. After adding the device_link, then "mediatek,larb" property can be removed. the iommu consumer don't need call the mtk_smi_larb_get/put to enable the power and clock of smi-larb and smi-common. This patchset depends on "MT8183 IOMMU SUPPORT"[1]. [1] https://lists.linuxfoundation.org/pipermail/iommu/2019-January/032387.html Yong Wu (13): dt-binding: mediatek: Get rid of mediatek,larb for multimedia HW driver core: Remove the link if there is no driver with AUTO flag iommu/mediatek: Add probe_defer for smi-larb iommu/mediatek: Add device_link between the consumer and the larb devices memory: mtk-smi: Add device-link between smi-larb and smi-common media: mtk-jpeg: Get rid of mtk_smi_larb_get/put media: mtk-mdp: Get rid of mtk_smi_larb_get/put media: mtk-vcodec: Get rid of mtk_smi_larb_get/put drm/mediatek: Get rid of mtk_smi_larb_get/put memory: mtk-smi: Get rid of mtk_smi_larb_get/put iommu/mediatek: Use builtin_platform_driver arm: dts: mediatek: Get rid of mediatek,larb for MM nodes arm64: dts: mediatek: Get rid of mediatek,larb for MM nodes .../bindings/display/mediatek/mediatek,disp.txt | 9 ----- .../bindings/media/mediatek-jpeg-decoder.txt | 4 --- .../devicetree/bindings/media/mediatek-mdp.txt | 8 ----- .../devicetree/bindings/media/mediatek-vcodec.txt | 4 --- arch/arm/boot/dts/mt2701.dtsi | 1 - arch/arm/boot/dts/mt7623.dtsi | 1 - arch/arm64/boot/dts/mediatek/mt8173.dtsi | 15 -------- drivers/base/core.c | 4 +-- drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 11 ------ drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 26 -------------- drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 1 - drivers/iommu/mtk_iommu.c | 40 +++++++++------------- drivers/iommu/mtk_iommu_v1.c | 32 ++++++++--------- drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c | 22 ------------ drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h | 2 -- drivers/media/platform/mtk-mdp/mtk_mdp_comp.c | 38 -------------------- drivers/media/platform/mtk-mdp/mtk_mdp_comp.h | 2 -- drivers/media/platform/mtk-mdp/mtk_mdp_core.c | 1 - .../media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c | 19 ---------- drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h | 3 -- drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c | 1 - .../media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c | 38 -------------------- drivers/memory/mtk-smi.c | 30 ++++------------ include/soc/mediatek/smi.h | 20 ----------- 24 files changed, 40 insertions(+), 292 deletions(-) -- 1.9.1