kernel/include/drm/bridge/dw_hdmi.h, branch linux-6.18.y

drm/bridge: dw-hdmi: change YUV420 selection logic at clock setup

2023-06-27T07:51:31Z

Right now clocking value selection code is prioritising RGB, YUV444 modes over YUV420 for HDMI2 sinks. However, because of the bus format selection procedure in dw-hdmi, for HDMI2 sinks YUV420 is the format that will always be picked during the drm bridge chain check stage. Later on dw_hdmi_setup will configure a colour space based on the bus format that doesn't match the pixel value we had calculated as described above. Fix it by bringing back dw-hdmi bus format check when picking the right pixel clock. Signed-off-by: Adrián Larumbe Acked-by: Neil Armstrong Signed-off-by: Neil Armstrong Link: https://patchwork.freedesktop.org/patch/msgid/6230bfae2cd97cf6527fc62ba5c850464919ccf8.1687702042.git.adrian.larumbe@collabora.com

drm: bridge: dw_hdmi: Audio: Add General Parallel Audio (GPA) driver

2022-04-19T16:23:48Z

General Parallel Audio (GPA) interface is one of the supported audio interface for synopsys HDMI module, which has verified for i.MX8MPlus platform. This is initial version for GPA. Signed-off-by: Shengjiu Wang Signed-off-by: Sandor Yu Reviewed-by: Neil Armstrong Signed-off-by: Robert Foss Link: https://patchwork.freedesktop.org/patch/msgid/f21ba3e8c4d9d028ac74c6f3c588ddbffe739399.1649989179.git.Sandor.yu@nxp.com

drm: bridge: dw_hdmi: add reset function for PHY GEN1

2022-04-19T16:19:03Z

PHY reset register(MC_PHYRSTZ) active high reset control for PHY GEN2, and active low reset control for PHY GEN1. Rename function dw_hdmi_phy_reset to dw_hdmi_phy_gen2_reset. Add dw_hdmi_phy_gen1_reset function for PHY GEN1. Signed-off-by: Sandor Yu Reviewed-by: Neil Armstrong Acked-by: Jernej Skrabec Signed-off-by: Robert Foss Link: https://patchwork.freedesktop.org/patch/msgid/e0b3be2d63fe3e95246fb8b8b0dcd57415b29e04.1649989179.git.Sandor.yu@nxp.com

drm: bridge: dw-hdmi: Attach to next bridge if available

2021-07-28T13:33:13Z

On all platforms except i.MX and Rockchip, the dw-hdmi DT bindings require a video output port connected to an HDMI sink (most likely an HDMI connector, in rare cases another bridges converting HDMI to another protocol). For those platforms, retrieve the next bridge and attach it from the dw-hdmi bridge attach handler. Signed-off-by: Laurent Pinchart Reviewed-by: Neil Armstrong Tested-by: Kieran Bingham # On V3U Reviewed-by: Kieran Bingham

drm/bridge/synopsys: dw-hdmi: Add an option to suppress loading CEC driver

2021-04-20T15:22:38Z

This adds DW-HDMI driver a glue option to disable loading of the CEC sub-driver. On some SoCs, the CEC functionality is enabled in the IP config bits, but the CEC bus is non-functional like on Amlogic SoCs, where the CEC config bit is set but the DW-HDMI CEC signal is not connected to a physical pin, leading to some confusion when the DW-HDMI CEC controller can't communicate on the bus. Reviewed-by: Neil Armstrong Signed-off-by: Jernej Skrabec Signed-off-by: Neil Armstrong Acked-by: Hans Verkuil Link: https://patchwork.freedesktop.org/patch/msgid/20210416092737.1971876-2-narmstrong@baylibre.com

drm: bridge: dw-hdmi: Pass drm_display_info to dw_hdmi_support_scdc()

2020-06-23T17:57:06Z

To prepare for making connector creation optional in the driver, pass the drm_display_info explicitly to dw_hdmi_support_scdc(). The pointer is passed to the callers where required, particularly to the dw_hdmi_phy_ops .init() function. Signed-off-by: Laurent Pinchart Reviewed-by: Neil Armstrong Signed-off-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20200526011505.31884-19-laurent.pinchart+renesas@ideasonboard.com

drm: bridge: dw-hdmi: Constify mode argument to dw_hdmi_phy_ops .init()

2020-06-23T17:56:25Z

The PHY .init() must not modify the mode it receives. Make the pointer const to enfore that. Signed-off-by: Laurent Pinchart Reviewed-by: Neil Armstrong Signed-off-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20200526011505.31884-17-laurent.pinchart+renesas@ideasonboard.com

drm: bridge: dw-hdmi: Pass drm_display_info to .mode_valid()

2020-06-23T17:56:02Z

Replace the drm_connector pointer passed to the .mode_valid() function with a const drm_display_info pointer, as that's all the function should need. Use the display info passed to the bridge .mode_valid() operation instead of retrieving it from the connector, to prepare for make connector creation optional. Signed-off-by: Laurent Pinchart Reviewed-by: Neil Armstrong Signed-off-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20200526011505.31884-16-laurent.pinchart+renesas@ideasonboard.com

drm: bridge: dw-hdmi: Remove unused field from dw_hdmi_plat_data

2020-06-23T17:55:19Z

The input_bus_format field of struct dw_hdmi_plat_data is unused. Remove it. Signed-off-by: Laurent Pinchart Reviewed-by: Neil Armstrong Signed-off-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20200526011505.31884-14-laurent.pinchart+renesas@ideasonboard.com

drm: bridge: dw-hdmi: Pass private data pointer to .configure_phy()

2020-06-23T17:54:52Z

The .configure_phy() operation takes a dw_hdmi_plat_data pointer as a context argument. This differs from .mode_valid() that takes a custom private context pointer, causing possible confusion. Make the dw_hdmi_plat_data operations more consistent by passing the private context pointer to .configure_phy() as well. Signed-off-by: Laurent Pinchart Reviewed-by: Neil Armstrong Signed-off-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20200526011505.31884-13-laurent.pinchart+renesas@ideasonboard.com