kernel/linux.git/drivers/gpu/drm/bridge/synopsys, branch v5.10.45

drm: bridge: dw-hdmi: Avoid resetting force in the detect function

2020-11-12T21:21:00+00:00

It has been observed that resetting force in the detect function can result in the PHY being powered down in response to hot-plug detect being asserted, even when the HDMI connector is forced on. Enabling debug messages and adding a call to dump_stack() in dw_hdmi_phy_power_off() shows the following in dmesg: [ 160.637413] dwhdmi-rockchip ff940000.hdmi: EVENT=plugin [ 160.637433] dwhdmi-rockchip ff940000.hdmi: PHY powered down in 0 iterations Call trace: dw_hdmi_phy_power_off dw_hdmi_phy_disable dw_hdmi_update_power dw_hdmi_detect dw_hdmi_connector_detect drm_helper_probe_detect_ctx drm_helper_hpd_irq_event dw_hdmi_irq irq_thread_fn irq_thread kthread ret_from_fork Fixes: 381f05a7a842 ("drm: bridge/dw_hdmi: add connector mode forcing") Signed-off-by: Jonathan Liu Reviewed-by: Sam Ravnborg Signed-off-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20201031081747.372599-1-net147@gmail.com

Merge drm/drm-next into drm-misc-next

2020-09-14T16:11:40+00:00

Paul Cercueil needs some patches in -rc5 to apply new patches for ingenic properly. Signed-off-by: Maxime Ripard

drm/bridge: dw-mipi-dsi: permit configuring the escape clock rate

2020-09-11T13:01:36+00:00

The Amlogic D-PHY in the Amlogic AXG SoC Family does support a frequency higher than 10MHz for the TX Escape Clock, thus make the target rate configurable. Signed-off-by: Neil Armstrong Reviewed-by: Philippe Cornu Link: https://patchwork.freedesktop.org/patch/msgid/20200904125531.15248-1-narmstrong@baylibre.com

drm/bridge: dw-mipi-dsi: Use kmemdup cf. kmalloc+memcpy

2020-09-11T13:00:52+00:00

kmemdup can be used instead of kmalloc+memcpy. Replace an occurrence of this pattern. Issue identified with Coccinelle. Signed-off-by: Alex Dewar Acked-by: Neil Armstrong Signed-off-by: Neil Armstrong Link: https://patchwork.freedesktop.org/patch/msgid/20200909190213.156302-1-alex.dewar90@gmail.com

drm/bridge: dw-mipi-dsi: fix dw_mipi_dsi_debugfs_show/write warnings

2020-09-08T08:19:55+00:00

This fixes the following warnings while building in W=1 : dw-mipi-dsi.c:1002:5: warning: no previous prototype for 'dw_mipi_dsi_debugfs_write' [-Wmissing-prototypes] dw-mipi-dsi.c:1027:5: warning: no previous prototype for 'dw_mipi_dsi_debugfs_show' [-Wmissing-prototypes] Fixes: e2435d69204c ("drm/bridge: dw-mipi-dsi.c: Add VPG runtime config through debugfs") Reported-by: kernel test robot Signed-off-by: Neil Armstrong Reviewed-by: Daniel Vetter Cc: Angelo Ribeiro Cc: Maxime Ripard Cc: Maarten Lankhorst Cc: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20200907102711.23748-1-narmstrong@baylibre.com

drm/bridge: dw-mipi-dsi.c: Add VPG runtime config through debugfs

2020-09-07T08:36:01+00:00

Add support for the video pattern generator (VPG) BER pattern mode and configuration in runtime. This enables using the debugfs interface to manipulate the VPG after the pipeline is set. Also, enables the usage of the VPG BER pattern. Changes in v2: - Added VID_MODE_VPG_MODE - Solved incompatible return type on __get and __set Reported-by: kbuild test robot Reported-by: Adrian Pop Signed-off-by: Angelo Ribeiro Tested-by: Yannick Fertre Tested-by: Adrian Pop Acked-by: Neil Armstrong Cc: Gustavo Pimentel Cc: Joao Pinto Cc: Jose Abreu Signed-off-by: Neil Armstrong Link: https://patchwork.freedesktop.org/patch/msgid/a809feb7d7153a92e323416f744f1565e995da01.1586180592.git.angelo.ribeiro@synopsys.com

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

2020-09-07T08:04:43+00:00

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

drm/bridge/synopsys: dsi: allow sending longer LP commands

2020-09-07T08:04:02+00:00

Current code does not properly computes the max length of LP commands that can be send during H or V sync, and rely on static values. Limiting the max LP length to 4 byte during the V-sync is overly conservative. Relax the limit and allows longer LP commands (16 bytes) to be sent during V-sync. 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/20200701143131.841-1-yannick.fertre@st.com

drm/bridge/synopsys: dsi: allow LP commands in video mode

2020-09-07T08:03:38+00:00

Current code only sends LP commands in command mode. Allows sending LP commands also in video mode by setting the proper flag in DSI_VID_MODE_CFG. 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/20200708140836.32418-1-yannick.fertre@st.com

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