kernel/linux.git/drivers/gpu/drm/ast, branch v6.6.23

drm/ast: Disconnect BMC if physical connector is connected

2023-12-03T06:33:06+00:00

commit 8d6ef26501b97243ee6c16b8187c5b38cb69b77d upstream. Many user-space compositors fail with mode setting if a CRTC has more than one connected connector. This is the case with the BMC on Aspeed systems. Work around this problem by setting the BMC's connector status to disconnected when the physical connector has a display attached. This way compositors will only see one connected connector at a time; either the physical one or the BMC. Suggested-by: Jocelyn Falempe Fixes: e329cb53b45d ("drm/ast: Add BMC virtual connector") Signed-off-by: Thomas Zimmermann Cc: # v6.6+ Reviewed-by: Jocelyn Falempe Link: https://patchwork.freedesktop.org/patch/msgid/20231116130217.22931-1-tzimmermann@suse.de Signed-off-by: Greg Kroah-Hartman

drm/ast: report connection status on Display Port.

2023-07-28T15:08:28+00:00

Aspeed always report the display port as "connected", because it doesn't set a .detect_ctx callback. Fix this by providing the proper detect callback for astdp and dp501. This also fixes the following regression: Since commit fae7d186403e ("drm/probe-helper: Default to 640x480 if no EDID on DP") The default resolution is now 640x480 when no monitor is connected. But Aspeed graphics is mostly used in servers, where no monitor is attached. This also affects the remote BMC resolution to 640x480, which is inconvenient, and breaks the anaconda installer. v2: Add .detect callback to the dp/dp501 connector (Jani Nikula) v3: Use .detect_ctx callback, and refactors (Thomas Zimmermann) Add a BMC virtual connector v4: Better indent detect_ctx() functions (Thomas Zimmermann) v5: Enable polling of the dp and dp501 connector status (Thomas Zimmermann) v6: Change check order in ast_astdp_is_connected (Jammy Huang) Fixes: fae7d186403e ("drm/probe-helper: Default to 640x480 if no EDID on DP") Signed-off-by: Jocelyn Falempe Reviewed-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20230713134316.332502-2-jfalempe@redhat.com

drm/ast: Add BMC virtual connector

2023-07-28T15:08:14+00:00

Most aspeed devices have a BMC, which allows to remotely see the screen. Also in the common use case, those servers don't have a display connected. So add a Virtual connector, to reflect that even if no display is connected, the framebuffer can still be seen remotely. This prepares the work to implement a detect_ctx() for the Display port connector. v4: call drm_add_modes_noedid() with 4096x4096 (Thomas Zimmermann) remove useless struct field init to 0 (Thomas Zimmermann) don't use drm_simple_encoder_init() (Thomas Zimmermann) inline ast_bmc_connector_init() (Thomas Zimmermann) Fixes: fae7d186403e ("drm/probe-helper: Default to 640x480 if no EDID on DP") Signed-off-by: Jocelyn Falempe Reviewed-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20230713134316.332502-1-jfalempe@redhat.com

drm/ast: Do not enable PCI resources multiple times

2023-07-25T18:51:41+00:00

Remove ast_init_pci_config() as the ast driver already enables the PCI resources by calling pcim_enable_device(). Suggested-by: Sui Jingfeng Signed-off-by: Thomas Zimmermann Reviewed-by: Jocelyn Falempe Tested-by: Sui Jingfeng Link: https://patchwork.freedesktop.org/patch/msgid/20230712130826.3318-1-tzimmermann@suse.de

drm/ast: Merge config and chip detection

2023-06-27T12:26:40+00:00

Detection of the configuration mode and the chipset model are linked to each other. One uses values from the other; namely the PCI device revision and the SCU revision. Merge this code into a single function. Signed-off-by: Thomas Zimmermann Reviewed-by: Jocelyn Falempe Tested-by: Jocelyn Falempe # AST2600 Reviewed-by: Sui Jingfeng Link: https://patchwork.freedesktop.org/patch/msgid/20230621130032.3568-15-tzimmermann@suse.de

drm/ast: Move widescreen and tx-chip detection into separate helpers

2023-06-27T12:26:40+00:00

Split ast_detect_chip() into three functions and call them one by one. The new functions detect the transmitter chip and widescreen support. This will allow for further refactoring. Signed-off-by: Thomas Zimmermann Reviewed-by: Sui Jingfeng Reviewed-by: Jocelyn Falempe Tested-by: Jocelyn Falempe # AST2600 Tested-by: Sui Jingfeng # AST2400 Link: https://patchwork.freedesktop.org/patch/msgid/20230621130032.3568-14-tzimmermann@suse.de

drm/ast: Detect AST 2510 model

2023-06-27T12:26:38+00:00

Detect the 6th-generation AST 2510. Allows to simplify the code for widescreen support. Signed-off-by: Thomas Zimmermann Reviewed-by: Jocelyn Falempe Tested-by: Jocelyn Falempe # AST2600 Link: https://patchwork.freedesktop.org/patch/msgid/20230621130032.3568-13-tzimmermann@suse.de

drm/ast: Detect AST 1400 model

2023-06-27T12:26:37+00:00

Detect the 5th-generation AST 1400. Allows to simplify the code for widescreen support. Signed-off-by: Thomas Zimmermann Reviewed-by: Jocelyn Falempe Tested-by: Jocelyn Falempe # AST2600 Link: https://patchwork.freedesktop.org/patch/msgid/20230621130032.3568-12-tzimmermann@suse.de

drm/ast: Detect AST 1300 model

2023-06-27T12:26:36+00:00

Detect the 4th-generation AST 1300. Allows to simplify the code for widescreen support. Signed-off-by: Thomas Zimmermann Reviewed-by: Jocelyn Falempe Tested-by: Jocelyn Falempe # AST2600 Link: https://patchwork.freedesktop.org/patch/msgid/20230621130032.3568-11-tzimmermann@suse.de

drm/ast: Distinguish among chip generations

2023-06-27T12:26:34+00:00

ASpeed distinguishes among various generations of the AST graphics chipset with various models. [1] The most-recent model AST 2600 is of the 7th generation, the AST 2500 is of the 6th generation, and so on. The ast driver simply picks one of the models as representative for the whole generation. In several places, individual models of the same generation need to be handled differently, which then requires additional code for detecting the model. Introduce different generations of the Aspeed chipset. In the source code, refer to the generation instead of the representation model where possible. The few places that require per-model handling are now clearly marked. In the enum ast_chip, we arrange each model's value such that it encodes the generation. This allows for an easy test. The actual values are ordered, but not of interest to the driver. v2: * use __ast_gen_is_eq() (Jingfeng) Signed-off-by: Thomas Zimmermann Link: https://web.archive.org/web/20141007093258/http://www.aspeedtech.com/products.php?fPath=20 # 1 Reviewed-by: Jocelyn Falempe Tested-by: Jocelyn Falempe # AST2600 Reviewed-by: Sui Jingfeng Link: https://patchwork.freedesktop.org/patch/msgid/20230621130032.3568-10-tzimmermann@suse.de