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drm/i915: parse child device from VBT

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On some laptops there is no HDMI/DP. But the xrandr still reports
several disconnected HDMI/display ports. In such case the user will be
confused.
 >DVI1 disconnected (normal left inverted right x axis y axis)
 >DP1 disconnected (normal left inverted right x axis y axis)
 >DVI2 disconnected (normal left inverted right x axis y axis)
 >DP2 disconnected (normal left inverted right x axis y axis)
 >DP3 disconnected (normal left inverted right x axis y axis)

This patch set is to use the child device parsed in VBT to decide whether
the HDMI/DP/LVDS/TV should be initialized.

Parse the child device from VBT.

The device class type is also added for LFP, TV, HDMI, DP output.

https://bugs.freedesktop.org/show_bug.cgi?id=22785

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Zhao Yakui
2009-11-24 09:48:44 +08:00
committed by Eric Anholt
parent c1b5dea097
commit 6363ee6f49
4 changed files with 93 additions and 0 deletions
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17
drivers/gpu/drm/i915/intel_bios.h
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@ -549,4 +549,21 @@ bool intel_init_bios(struct drm_device *dev);
#define SWF14_APM_STANDBY 0x1
#define SWF14_APM_RESTORE 0x0
/* Add the device class for LFP, TV, HDMI */
#define DEVICE_TYPE_INT_LFP 0x1022
#define DEVICE_TYPE_INT_TV 0x1009
#define DEVICE_TYPE_HDMI 0x60D2
#define DEVICE_TYPE_DP 0x68C6
#define DEVICE_TYPE_eDP 0x78C6
/* define the DVO port for HDMI output type */
#define DVO_B 1
#define DVO_C 2
#define DVO_D 3
/* define the PORT for DP output type */
#define PORT_IDPB 7
#define PORT_IDPC 8
#define PORT_IDPD 9
#endif /* _I830_BIOS_H_ */