U. Artie Eoff 673e7bbdb3 drm/i915: intel_backlight scale() math WA ... Improper truncated integer division in the scale() function causes actual_brightness != brightness. This (partial) work-around should be sufficient for a majority of use-cases, but it is by no means a complete solution. TODO: Determine how best to scale "user" values to "hw" values, and vice-versa, when the ranges are of different sizes. That would be a buggy scenario even with this work-around. The issue was introduced in the following (v3.17-rc1) commit: 6dda730 drm/i915: respect the VBT minimum backlight brightness Note that for easier backporting this commit adds a duplicated macro. A follow-up cleanup patch rectifies this for 3.18+ v2: (thanks to Chris Wilson) clarify commit message, use rounded division macro v3: -DIV_ROUND_CLOSEST() fails to build with CONFIG_X86_32=y. (Jani) -Use DIV_ROUND_CLOSEST_ULL() instead. (Damien) -v1 and v2 originally authored by Joe Konno. Signed-off-by: U. Artie Eoff <ullysses.a.eoff@intel.com> Cc: stable@vger.kernel.org Reviewed-By: Joe Konno <joe.konno@intel.com> [danvet: Add backporting note.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>		2014-10-06 16:47:24 +02:00
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drm	drm/i915: intel_backlight scale() math WA	2014-10-06 16:47:24 +02:00
host1x	drm/tegra: Make job submission 64-bit safe	2014-08-04 10:07:36 +02:00
ipu-v3	gpu: ipu-v3: Add ipu_dump()	2014-09-02 14:55:56 +02:00
vga	vgaarb: We can own non-decoded resources	2014-07-08 11:15:09 +10:00
Makefile	gpu: ipu-v3: Move i.MX IPUv3 core driver out of staging	2014-06-04 11:06:52 +02:00