From: Chenyang Li
This patch adds an initial DRM driver for the Loongson LS7A1000
bridge chip(LS7A). The Loongson 7A1000 bridge chip is Loongson’s
first dedicated chipset product, providing north-south bridge functionality
for Loongson processors. The bridge chip is connected to the Loongson
Add LS7A DC vsync interrupt enable and close function, and
register irq_handler function interface.
Add vbrank event processing flow.
v4:
- Replace drm_irq_install with devm_request_irq.
- Delete the irq_ hooks in drm_driver.
v3:
- Improve code readability.
- Use the to_pci_dev function to get
Add get video bios from the ACPI table.
Define new acpi table "VIAT" for loongson video bios.
Signed-off-by: Chenyang Li
---
drivers/gpu/drm/loongson/Makefile | 3 +-
drivers/gpu/drm/loongson/loongson_drv.c | 21 +++-
drivers/gpu/drm/loongson/loongson_drv.h | 1 +
Implement use GPIO and I2C driver to detect connector
and fetch EDID via DDC.
v5:
- Use braidge->ddc to get EDID and detect connector.
v4:
- Delete the gpio_chip subsystem call.
- Delete some redundant prints.
v3:
- Change some driver log to the drm_ version.
v2:
- Optimize the error handling
From: Chenyang Li
This patch adds an initial DRM driver for the Loongson LS7A1000
bridge chip(LS7A). The LS7A bridge chip contains two display
controllers, support dual display output. The maximum support for
each channel display is to 1920x1080@60Hz.
At present, DC device detection and DRM
and loongson_i2c_add function.
- Optimize part of the code flow.
Signed-off-by: lichenyang
---
drivers/gpu/drm/loongson/Makefile | 1 +
drivers/gpu/drm/loongson/loongson_connector.c | 59 +-
drivers/gpu/drm/loongson/loongson_drv.c | 16 +-
drivers/gpu/drm/loongson/loongson_drv.h
pci_dev.
v2:
- Added error handling in the loongson_drm_load function.
Signed-off-by: lichenyang
---
drivers/gpu/drm/loongson/Makefile| 1 +
drivers/gpu/drm/loongson/loongson_crtc.c | 41 +++-
drivers/gpu/drm/loongson/loongson_drv.c | 6 ++
drivers/gpu/drm/loongson
From: Chenyang Li
This patch adds an initial DRM driver for the Loongson LS7A1000
bridge chip(LS7A). The LS7A bridge chip contains two display
controllers, support dual display output. The maximum support for
each channel display is to 1920x1080@60Hz.
At present, DC device detection and DRM
Implement use GPIO and I2C driver to detect connector
and fetch EDID via DDC.
v3:
- Change some driver log to the drm_ version.
v2:
- Optimize the error handling process.
- Delete loongson_i2c_bus_match and loongson_i2c_add function.
- Optimize part of the code flow.
Signed-off-by: lichenyang
pci_dev.
v2:
- Added error handling in the loongson_drm_load function.
Signed-off-by: lichenyang
---
drivers/gpu/drm/loongson/Makefile| 1 +
drivers/gpu/drm/loongson/loongson_crtc.c | 40 +++-
drivers/gpu/drm/loongson/loongson_drv.c | 6 ++
drivers/gpu/drm/loongson
-by: lichenyang
---
drivers/gpu/drm/loongson/Makefile| 3 +-
drivers/gpu/drm/loongson/loongson_crtc.c | 40 +-
drivers/gpu/drm/loongson/loongson_drv.c | 10 +++
drivers/gpu/drm/loongson/loongson_drv.h | 17 -
drivers/gpu/drm/loongson/loongson_irq.c | 94
5
From: Chenyang Li
This patch adds an initial DRM driver for the Loongson LS7A1000
bridge chip(LS7A). The LS7A bridge chip contains two display
controllers, support dual display output. The maximum support for
each channel display is to 1920x1080@60Hz.
At present, DC device detection and DRM
Implement use GPIO and I2C driver to detect connector
and fetch EDID via DDC.
v2:
- Optimize the error handling process.
- Delete loongson_i2c_bus_match and loongson_i2c_add function.
- Optimize part of the code flow.
Signed-off-by: lichenyang
---
drivers/gpu/drm/loongson/Makefile
From: Chenyang Li
This patch adds an initial DRM driver for the Loongson LS7A1000
bridge chip(LS7A). The LS7A bridge chip contains two display
controllers, support dual display output. The maximum support for
each channel display is to 1920x1080@60Hz.
At present, DC device detection and DRM
Implement use GPIO and I2C driver to detect connector
and fetch EDID via DDC.
Signed-off-by: lichenyang
---
drivers/gpu/drm/loongson/Makefile | 3 +-
drivers/gpu/drm/loongson/loongson_connector.c | 70 -
drivers/gpu/drm/loongson/loongson_drv.c | 16 +-
drivers/gpu/drm
Add LS7A DC vsync interrupt enable and close function, and
register irq_handler function interface.
Add vbrank event processing flow.
V2:
- Remove the useless flags parameter.
- Added error handling in the loongson_drm_load function.
Signed-off-by: lichenyang
---
drivers/gpu/drm/loongson
Implement use GPIO and I2C driver to detect connector
and fetch EDID via DDC.
Signed-off-by: lichenyang
---
drivers/gpu/drm/loongson/Makefile | 3 +-
drivers/gpu/drm/loongson/loongson_connector.c | 70 -
drivers/gpu/drm/loongson/loongson_drv.c | 16 +-
drivers/gpu/drm
Add LS7A DC vsync interrupt enable and close function, and
register irq_handler function interface.
Add vbrank event processing flow.
Signed-off-by: lichenyang
---
drivers/gpu/drm/loongson/Makefile| 3 +-
drivers/gpu/drm/loongson/loongson_crtc.c | 43 +-
drivers/gpu/drm
From: Chenyang Li
This patch adds an initial DRM driver for the Loongson LS7A1000
bridge chip(LS7A). The LS7A bridge chip contains two display
controllers, support dual display output. The maximum support for
each channel display is to 1920x1080@60Hz.
At present, DC device detection and DRM
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