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author | Richard Purdie <rpurdie@linux.intel.com> | 2010-08-27 15:14:24 +0100 |
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committer | Richard Purdie <rpurdie@linux.intel.com> | 2010-08-27 15:29:45 +0100 |
commit | 29d6678fd546377459ef75cf54abeef5b969b5cf (patch) | |
tree | 8edd65790e37a00d01c3f203f773fe4b5012db18 /meta/recipes-kernel/linux/linux-omap-2.6.29/dss2/0033-DSS2-Prefer-3-tap-filter.patch | |
parent | da49de6885ee1bc424e70bc02f21f6ab920efb55 (diff) | |
download | poky-29d6678fd546377459ef75cf54abeef5b969b5cf.tar.gz |
Major layout change to the packages directory
Having one monolithic packages directory makes it hard to find things
and is generally overwhelming. This commit splits it into several
logical sections roughly based on function, recipes.txt gives more
information about the classifications used.
The opportunity is also used to switch from "packages" to "recipes"
as used in OpenEmbedded as the term "packages" can be confusing to
people and has many different meanings.
Not all recipes have been classified yet, this is just a first pass
at separating things out. Some packages are moved to meta-extras as
they're no longer actively used or maintained.
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
Diffstat (limited to 'meta/recipes-kernel/linux/linux-omap-2.6.29/dss2/0033-DSS2-Prefer-3-tap-filter.patch')
-rw-r--r-- | meta/recipes-kernel/linux/linux-omap-2.6.29/dss2/0033-DSS2-Prefer-3-tap-filter.patch | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/meta/recipes-kernel/linux/linux-omap-2.6.29/dss2/0033-DSS2-Prefer-3-tap-filter.patch b/meta/recipes-kernel/linux/linux-omap-2.6.29/dss2/0033-DSS2-Prefer-3-tap-filter.patch new file mode 100644 index 0000000000..f643ca64f3 --- /dev/null +++ b/meta/recipes-kernel/linux/linux-omap-2.6.29/dss2/0033-DSS2-Prefer-3-tap-filter.patch | |||
@@ -0,0 +1,82 @@ | |||
1 | From 5390230ed12585a79683733209db34e9130b8e3b Mon Sep 17 00:00:00 2001 | ||
2 | From: =?utf-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@nokia.com> | ||
3 | Date: Thu, 9 Apr 2009 15:04:43 +0200 | ||
4 | Subject: [PATCH] DSS2: Prefer 3-tap filter | ||
5 | MIME-Version: 1.0 | ||
6 | Content-Type: text/plain; charset=utf-8 | ||
7 | Content-Transfer-Encoding: 8bit | ||
8 | |||
9 | The 5-tap filter seems rather unstable. With some scaling settings it | ||
10 | works and with some it doesn't even though the functional clock remains | ||
11 | within the TRM limits. So prefer the 3-tap filter unless the functional | ||
12 | clock required for it is too high. | ||
13 | |||
14 | Signed-off-by: Ville Syrjälä <ville.syrjala@nokia.com> | ||
15 | --- | ||
16 | drivers/video/omap2/dss/dispc.c | 27 ++++++++++++--------------- | ||
17 | 1 files changed, 12 insertions(+), 15 deletions(-) | ||
18 | |||
19 | diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c | ||
20 | index b8a3329..b631dd8 100644 | ||
21 | --- a/drivers/video/omap2/dss/dispc.c | ||
22 | +++ b/drivers/video/omap2/dss/dispc.c | ||
23 | @@ -1405,15 +1405,10 @@ static unsigned long calc_fclk_five_taps(u16 width, u16 height, | ||
24 | } | ||
25 | |||
26 | static unsigned long calc_fclk(u16 width, u16 height, | ||
27 | - u16 out_width, u16 out_height, | ||
28 | - enum omap_color_mode color_mode, bool five_taps) | ||
29 | + u16 out_width, u16 out_height) | ||
30 | { | ||
31 | unsigned int hf, vf; | ||
32 | |||
33 | - if (five_taps) | ||
34 | - return calc_fclk_five_taps(width, height, | ||
35 | - out_width, out_height, color_mode); | ||
36 | - | ||
37 | /* | ||
38 | * FIXME how to determine the 'A' factor | ||
39 | * for the no downscaling case ? | ||
40 | @@ -1494,7 +1489,7 @@ static int _dispc_setup_plane(enum omap_plane plane, | ||
41 | } else { | ||
42 | /* video plane */ | ||
43 | |||
44 | - unsigned long fclk; | ||
45 | + unsigned long fclk = 0; | ||
46 | |||
47 | if (out_width < width / maxdownscale || | ||
48 | out_width > width * 8) | ||
49 | @@ -1530,20 +1525,22 @@ static int _dispc_setup_plane(enum omap_plane plane, | ||
50 | /* Must use 5-tap filter? */ | ||
51 | five_taps = height > out_height * 2; | ||
52 | |||
53 | - /* Try to use 5-tap filter whenever possible. */ | ||
54 | - if (cpu_is_omap34xx() && !five_taps && | ||
55 | - height > out_height && width <= 1024) { | ||
56 | - fclk = calc_fclk_five_taps(width, height, | ||
57 | - out_width, out_height, color_mode); | ||
58 | - if (fclk <= dispc_fclk_rate()) | ||
59 | + if (!five_taps) { | ||
60 | + fclk = calc_fclk(width, height, | ||
61 | + out_width, out_height); | ||
62 | + | ||
63 | + /* Try 5-tap filter if 3-tap fclk is too high */ | ||
64 | + if (cpu_is_omap34xx() && height > out_height && | ||
65 | + fclk > dispc_fclk_rate()) | ||
66 | five_taps = true; | ||
67 | } | ||
68 | |||
69 | if (width > (2048 >> five_taps)) | ||
70 | return -EINVAL; | ||
71 | |||
72 | - fclk = calc_fclk(width, height, out_width, out_height, | ||
73 | - color_mode, five_taps); | ||
74 | + if (five_taps) | ||
75 | + fclk = calc_fclk_five_taps(width, height, | ||
76 | + out_width, out_height, color_mode); | ||
77 | |||
78 | DSSDBG("required fclk rate = %lu Hz\n", fclk); | ||
79 | DSSDBG("current fclk rate = %lu Hz\n", dispc_fclk_rate()); | ||
80 | -- | ||
81 | 1.5.6.5 | ||
82 | |||