kernel/linux.git/drivers/gpu/drm/bridge/synopsys, branch v5.9.10

drm/bridge/synopsys: dsi: add support for non-continuous HS clock

2020-11-05T10:51:19+00:00

[ Upstream commit c6d94e37bdbb6dfe7e581e937a915ab58399b8a5 ] Current code enables the HS clock when video mode is started or to send out a HS command, and disables the HS clock to send out a LP command. This is not what DSI spec specify. Enable HS clock either in command and in video mode. Set automatic HS clock management for panels and devices that support non-continuous HS clock. Signed-off-by: Antonio Borneo Tested-by: Philippe Cornu Reviewed-by: Philippe Cornu Acked-by: Neil Armstrong Signed-off-by: Neil Armstrong Link: https://patchwork.freedesktop.org/patch/msgid/20200701194234.18123-1-yannick.fertre@st.com Signed-off-by: Sasha Levin

treewide: Use fallthrough pseudo-keyword

2020-08-23T22:36:59+00:00

Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary fall-through markings when it is the case. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva

drm/bridge: dw-hdmi: Always add the bridge in the global bridge list

2020-07-10T18:21:45+00:00

It doesn't hurt to add the bridge in the global bridge list also for platform specific dw-hdmi drivers which are based on the component framework. This can be achieved by moving the drm_bridge_add() function call from dw_hdmi_probe() to __dw_hdmi_probe(). A counterpart movement for drm_bridge_remove() is also needed then. Moreover, since drm_bridge_add() initializes &bridge->hpd_mutex, this may help those platform specific dw-hdmi drivers(based on the component framework) avoid accessing the uninitialized mutex in drm_bridge_hpd_notify() which is called in dw_hdmi_irq(). Putting drm_bridge_add() in __dw_hdmi_probe() just before it returns successfully should bring no logic change for platforms based on the DRM bridge API, which is a good choice from safety point of view. Also, __dw_hdmi_probe() is renamed to dw_hdmi_probe() since dw_hdmi_probe() does nothing else but calling __dw_hdmi_probe(). Similar renaming applies to the __dw_hdmi_remove()/dw_hdmi_remove() pair. Fixes: ec971aaa6775 ("drm: bridge: dw-hdmi: Make connector creation optional") Cc: Andrzej Hajda Cc: Neil Armstrong Cc: Laurent Pinchart Cc: Jonas Karlman Cc: Jernej Skrabec Cc: David Airlie Cc: Daniel Vetter Cc: Boris Brezillon Cc: Jerome Brunet Cc: Cheng-Yi Chiang Cc: Dariusz Marcinkiewicz Cc: Archit Taneja Cc: Jose Abreu Cc: Sam Ravnborg Cc: dri-devel@lists.freedesktop.org Cc: NXP Linux Team Signed-off-by: Liu Ying Signed-off-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/1594260156-8316-2-git-send-email-victor.liu@nxp.com

drm/bridge: dw-hdmi: Don't cleanup i2c adapter and ddc ptr in __dw_hdmi_probe() bailout path

2020-07-10T18:20:58+00:00

It's unnecessary to cleanup the i2c adapter and the ddc pointer in the bailout path of __dw_hdmi_probe(), since the adapter is not added and the ddc pointer is not set. Fixes: a23d6265f033 ("drm: bridge: dw-hdmi: Extract PHY interrupt setup to a function") Cc: Andrzej Hajda Cc: Neil Armstrong Cc: Laurent Pinchart Cc: Jonas Karlman Cc: Jernej Skrabec Cc: David Airlie Cc: Daniel Vetter Cc: Boris Brezillon Cc: Jerome Brunet Cc: Cheng-Yi Chiang Cc: Dariusz Marcinkiewicz Cc: Archit Taneja Cc: Jose Abreu Cc: dri-devel@lists.freedesktop.org Cc: NXP Linux Team Signed-off-by: Liu Ying Reviewed-by: Laurent Pinchart Signed-off-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/1594260156-8316-1-git-send-email-victor.liu@nxp.com

Backmerge remote-tracking branch 'drm/drm-next' into drm-misc-next

2020-06-29T10:16:26+00:00

Some conflicts with ttm_bo->offset removal, but drm-misc-next needs updating to v5.8. Signed-off-by: Maarten Lankhorst

drm/bridge: dw-mipi-dsi.c: remove unused header file

2020-06-25T07:53:11+00:00

dw-mipi-dsi does not use any definition from drm_probe_helper. Coverity output: Event unnecessary_header: Including .../include/drm/drm_probe_helper.h does not provide any needed symbols. Reviewed-by: Yannick Fertre Cc: Gustavo Pimentel Cc: Joao Pinto Cc: Jose Abreu Signed-off-by: Angelo Ribeiro Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/171ff1fb3918664a570dc8f2f34b446612505f76.1585832665.git.angelo.ribeiro@synopsys.com

drm: bridge: dw-hdmi: Make connector creation optional

2020-06-23T17:59:18+00:00

Implement the drm_bridge_funcs .detect() and .get_edid() operations, and call drm_bridge_hpd_notify() notify to report HPD. This provides the necessary API to support disabling connector creation, do so by accepting DRM_BRIDGE_ATTACH_NO_CONNECTOR in dw_hdmi_bridge_attach(). Signed-off-by: Laurent Pinchart Reviewed-by: Neil Armstrong Signed-off-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20200526011505.31884-23-laurent.pinchart+renesas@ideasonboard.com

drm: bridge: dw-hdmi: Pass drm_connector to internal functions as needed

2020-06-23T17:58:46+00:00

To prepare for making connector creation optional in the driver, pass the drm_connector explicitly to the internal functions that require it. The functions that still access the connector from the dw_hdmi structure are dw_hdmi_connector_create() and __dw_hdmi_probe(). The former access is expected, as that's where the internal connector is created. The latter will be addressed separately. Signed-off-by: Laurent Pinchart Reviewed-by: Neil Armstrong Signed-off-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20200526011505.31884-22-laurent.pinchart+renesas@ideasonboard.com

drm: bridge: dw-hdmi: Store current connector in struct dw_hdmi

2020-06-23T17:58:30+00:00

Store the connector that the bridge is currently wired to in the dw_hdmi structure. This is currently identical to the connector field, but will differ once the driver supports disabling connector creation. Signed-off-by: Laurent Pinchart Reviewed-by: Neil Armstrong Signed-off-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20200526011505.31884-21-laurent.pinchart+renesas@ideasonboard.com

drm: bridge: dw-hdmi: Split connector creation to a separate function

2020-06-23T17:57:43+00:00

Isolate all the code related to connector creation to a new dw_hdmi_connector_create() function, to prepare for making connector creation optional. Signed-off-by: Laurent Pinchart Reviewed-by: Neil Armstrong Signed-off-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20200526011505.31884-20-laurent.pinchart+renesas@ideasonboard.com