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authorIngo Molnar <mingo@elte.hu>2009-04-29 14:46:59 +0200
committerIngo Molnar <mingo@elte.hu>2009-04-29 14:47:05 +0200
commite7fd5d4b3d240f42c30a9e3d20a4689c4d3a795a (patch)
tree4ba588631dd8189a818a91c9e3976526071178b6 /drivers/video/vfb.c
parent1130b0296184bc21806225fd06d533515a99d2db (diff)
parent56a50adda49b2020156616c4eb15353e0f9ad7de (diff)
Merge branch 'linus' into perfcounters/core
Merge reason: This brach was on -rc1, refresh it to almost-rc4 to pick up the latest upstream fixes. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/video/vfb.c')
-rw-r--r--drivers/video/vfb.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/video/vfb.c b/drivers/video/vfb.c
index cc919ae4657..050d432c7d9 100644
--- a/drivers/video/vfb.c
+++ b/drivers/video/vfb.c
@@ -318,13 +318,16 @@ static int vfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
* {hardwarespecific} contains width of RAMDAC
* cmap[X] is programmed to (X << red.offset) | (X << green.offset) | (X << blue.offset)
* RAMDAC[X] is programmed to (red, green, blue)
- *
+ *
* Pseudocolor:
- * uses offset = 0 && length = RAMDAC register width.
- * var->{color}.offset is 0
- * var->{color}.length contains widht of DAC
+ * var->{color}.offset is 0 unless the palette index takes less than
+ * bits_per_pixel bits and is stored in the upper
+ * bits of the pixel value
+ * var->{color}.length is set so that 1 << length is the number of available
+ * palette entries
* cmap is not used
* RAMDAC[X] is programmed to (red, green, blue)
+ *
* Truecolor:
* does not use DAC. Usually 3 are present.
* var->{color}.offset contains start of bitfield