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The head number of a given display controller is fixed in hardware and required to program outputs appropriately. Relying on the driver probe order to determine this number will not work, since that could yield a situation where the second head was probed first and would be assigned head number 0 instead of 1. By explicitly specifying the head number in the device tree, it is no longer necessary to rely on these assumptions. As a fallback, if the property isn't available, derive the head number from the display controller node's position in the device tree. That's somewhat more reliable than the previous default but not a proper solution. Tested-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> |
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| .. | ||
| bus.c | ||
| dc.c | ||
| dc.h | ||
| drm.c | ||
| drm.h | ||
| dsi.c | ||
| dsi.h | ||
| fb.c | ||
| gem.c | ||
| gem.h | ||
| gr2d.c | ||
| gr2d.h | ||
| gr3d.c | ||
| gr3d.h | ||
| hdmi.c | ||
| hdmi.h | ||
| Kconfig | ||
| Makefile | ||
| mipi-phy.c | ||
| mipi-phy.h | ||
| output.c | ||
| rgb.c | ||