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| author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2011-08-29 14:56:04 +0200 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2011-09-30 15:16:35 +0200 |
| commit | 9eaaf2076dac213c034c69051dd7a625cd41f56e (patch) | |
| tree | 324c8dbe9a8e25c7eb46a986b0b7ac00f4549b59 /net | |
| parent | OMAP4: DSS2: Rename hdmi_omap4_panel.c to hdmi_panel.c (diff) | |
| download | linux-9eaaf2076dac213c034c69051dd7a625cd41f56e.tar.xz linux-9eaaf2076dac213c034c69051dd7a625cd41f56e.zip | |
OMAP: DSS2: DISPC: Fix minimum PCD value
The current driver had a hardcoded minimum value of 2 for pixel clock
divisor (PCD). This doesn't seem to be right.
OMAP4 TRM says that PCD can be 1 when not downscaling, and inverted
pixel clock (IPC) is off.
OMAP3 TRM says the same, but also in the register descriptions that PCD
value 1 is invalid.
OMAP2 TRM says PCD 2 is the minimum.
OMAP2 is still untested, but for both OMAP3 and OMAP4 PCD of 1 seems to
work fine.
This patch adds a new DSS feature, FEAT_PARAM_DSS_PCD, which is used to
find the minimum and maximum PCD. The minimum is set to 2 for OMAP2, and
1 for OMAP3/4.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions