diff options
| author | Roger Hsieh <rhsieh@nvidia.com> | 2012-07-03 15:13:31 +0800 |
|---|---|---|
| committer | Rohan Somvanshi <rsomvanshi@nvidia.com> | 2012-07-13 05:46:57 -0700 |
| commit | 409dce46df80f7ace06187c5879e15aa99494a9a (patch) | |
| tree | a36be97ed1d2d8c056c8470b53d56b0ee085c5ec | |
| parent | dce8537432468a214e1ce99fd2fa5a84798ee4da (diff) | |
tegra: dc: Make data output along with pixel clock.
After making pclk output ahead of LVDS_SHDN# , data output is later than
panel ready then caused partial black screen. Force triggered data output to
get it fixed.
Bug 972377
Bug 976081
Bug 1001434
Change-Id: Icd455d7439f622e46295158a5435286c521526aa
Signed-off-by: Roger Hsieh <rhsieh@nvidia.com>
Reviewed-on: http://git-master/r/113164
Reviewed-by: Rohan Somvanshi <rsomvanshi@nvidia.com>
Tested-by: Rohan Somvanshi <rsomvanshi@nvidia.com>
| -rw-r--r-- | drivers/video/tegra/dc/dc.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/video/tegra/dc/dc.c b/drivers/video/tegra/dc/dc.c index 77cd19e6f870..1f7e2ce67682 100644 --- a/drivers/video/tegra/dc/dc.c +++ b/drivers/video/tegra/dc/dc.c @@ -1286,15 +1286,19 @@ static bool _tegra_dc_controller_enable(struct tegra_dc *dc) if (dc->out_ops && dc->out_ops->enable) dc->out_ops->enable(dc); - if (dc->out->postpoweron) - dc->out->postpoweron(); - /* force a full blending update */ dc->blend.z[0] = -1; tegra_dc_ext_enable(dc->ext); trace_printk("%s:enable\n", dc->ndev->name); + + tegra_dc_writel(dc, GENERAL_UPDATE, DC_CMD_STATE_CONTROL); + tegra_dc_writel(dc, GENERAL_ACT_REQ, DC_CMD_STATE_CONTROL); + + if (dc->out->postpoweron) + dc->out->postpoweron(); + return true; } |