diff options
| author | Ran Ferderber <Ran.Ferderber@freescale.com> | 2009-12-09 18:30:51 +0200 |
|---|---|---|
| committer | Justin Waters <justin.waters@timesys.com> | 2010-03-25 14:01:46 -0400 |
| commit | acc41cfb94eece13a5d2b9dca2543885f6211a8f (patch) | |
| tree | f2649aadd8b18bbb34d613b714a97ff18d914ef4 | |
| parent | 5c2fffec7406f81988824933bf55a97bb66ff2f0 (diff) | |
ENGR00114151 800x600-16@60 video not play correctly
Setting "video=mxcfb:800x600-16@60" in the exec command makes video not play
correctly, IPU didn't play video when panel blank line where lower then minimum
required by IPU
Signed-off-by: Ran Ferderber r53561@freescale.com
| -rw-r--r-- | drivers/mxc/ipu3/ipu_disp.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/mxc/ipu3/ipu_disp.c b/drivers/mxc/ipu3/ipu_disp.c index 1135fcbaf3c2..505d3f7d84d7 100644 --- a/drivers/mxc/ipu3/ipu_disp.c +++ b/drivers/mxc/ipu3/ipu_disp.c @@ -795,6 +795,28 @@ void _ipu_dp_set_csc_coefficients(ipu_channel_t channel, int32_t param[][3]) } /*! + * This function is called to adapt synchronous LCD panel to IPU restriction. + * + */ +void adapt_panel_to_ipu_restricitions(uint16_t *pixel_clk, + uint16_t width, uint16_t height, + uint16_t h_start_width, + uint16_t h_end_width, + uint16_t v_start_width, + uint16_t *v_end_width) +{ + if (*v_end_width < 2) { + uint16_t total_width = width + h_start_width + h_end_width; + uint16_t total_height_old = height + v_start_width + (*v_end_width); + uint16_t total_height_new = height + v_start_width + 2; + *v_end_width = 2; + *pixel_clk = (*pixel_clk) * total_width * total_height_new / + (total_width * total_height_old); + dev_err(g_ipu_dev, "WARNING: adapt panel end blank lines\n"); + } +} + +/*! * This function is called to initialize a synchronous LCD panel. * * @param disp The DI the panel is attached to. @@ -855,6 +877,9 @@ int32_t ipu_init_sync_panel(int disp, uint32_t pixel_clk, if ((v_sync_width == 0) || (h_sync_width == 0)) return EINVAL; + adapt_panel_to_ipu_restricitions(&pixel_clk, width, height, + h_start_width, h_end_width, + v_start_width, &v_end_width); h_total = width + h_sync_width + h_start_width + h_end_width; v_total = height + v_sync_width + v_start_width + v_end_width; |