diff options
| author | Vince Hsu <vinceh@nvidia.com> | 2014-06-11 17:14:05 +0800 |
|---|---|---|
| committer | Marc Jones <marc.jones@se-eng.com> | 2015-01-04 00:14:03 +0100 |
| commit | 1e3679ddd0fd03fdc00b50a45fc652a539b9c9a7 (patch) | |
| tree | 11020367ea7d724801654a7e3f7b017048b393ce /src/soc/nvidia/tegra124/include | |
| parent | c1f7cbe49f0023655f6f60b1d924ed5c61533806 (diff) | |
tegra124: configure DP with correct pixel clock
For some panels, the plld can't provide the pixel clock that
the panels wants, so we give it a good enough one. And we
should calculate the dp/dc settings by the real pixel clock.
BRANCH=nyan
BUG=chrome-os-partner:29489
TEST=Verified the panels N116BGE-EA2(Nyan) and N133BGE-EAB(Big).
No screen flicker is observed. No sor dp fifo underflow found.
Original-Change-Id: I037b2bd5f5e9bb8b15ab6f47a84ac7ef2e207779
Original-Signed-off-by: Vince Hsu <vinceh@nvidia.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/203358
Original-Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Original-Reviewed-by: David Hendricks <dhendrix@chromium.org>
(cherry picked from commit d320f0c6b54ea8ca84206447b223da76ac5f771b)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: I772bb8e7a40cc462c72ba0fb9657c63ed2e0d0ac
Reviewed-on: http://review.coreboot.org/8044
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/soc/nvidia/tegra124/include')
| -rw-r--r-- | src/soc/nvidia/tegra124/include/soc/clock.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/soc/nvidia/tegra124/include/soc/clock.h b/src/soc/nvidia/tegra124/include/soc/clock.h index 73274a5c71..ffe9a4eedb 100644 --- a/src/soc/nvidia/tegra124/include/soc/clock.h +++ b/src/soc/nvidia/tegra124/include/soc/clock.h @@ -279,7 +279,7 @@ enum clock_source { /* Careful: Not true for all sources, always check TRM! */ int clock_get_osc_khz(void); int clock_get_pll_input_khz(void); -int clock_display(u32 frequency); +u32 clock_display(u32 frequency); void clock_early_uart(void); void clock_external_output(int clk_id); void clock_sdram(u32 m, u32 n, u32 p, u32 setup, u32 ph45, u32 ph90, |