diff options
| author | Ken Chang <kenc@nvidia.com> | 2012-05-15 18:02:04 +0800 |
|---|---|---|
| committer | Simone Willett <swillett@nvidia.com> | 2012-06-25 17:34:40 -0700 |
| commit | 81a8d469a7e9d70d0a2cc0345ddf509038bb620a (patch) | |
| tree | 209eb35319974f4b8b72183b12fdbc45304a9040 /drivers/video/tegra/dc/dc_priv.h | |
| parent | cd17fa91e37f8b867ab1ae2759bda03e950fdf83 (diff) | |
arm: tegra: kai: Fix panel power on/off sequence
Panel power on/off sequence should meet the panel spec as below.
power on:
1. EN_VDD_PNL
2. PCLK
3. LVDS_EN
4. LCD_BL_PWN
power off:
1. LCD_BL_PWN
2. LVDS_EN
3. PCLK
4. EN_VDD_PNL
Pixel clock on/off is controlled by dc driver, we need to separate the
setting of panel enable/disable into two parts. The first, i.e., before
pclk on/off, is done in kai_panel_enable()/kai_panel_prepoweroff().
And the second part, i.e., after pclk on/off, is done in
kai_panel_postpoweron()/kai_panel_disable().
bug 976081
Signed-off-by: Ken Chang <kenc@nvidia.com>
Reviewed-on: http://git-master/r/102555
Reviewed-by: Artiste Hsu <chhsu@nvidia.com>
Reviewed-by: Prajakta Gudadhe <pgudadhe@nvidia.com>
(cherry picked from commit 8149532e20729c359eb1680297f19a8f46343054)
Change-Id: Ifc0d60c2caabf60f4186179e64756a4caabf9af6
Reviewed-on: http://git-master/r/110297
Tested-by: Ken Chang <kenc@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Artiste Hsu <chhsu@nvidia.com>
Reviewed-by: Jon Mayo <jmayo@nvidia.com>
Diffstat (limited to 'drivers/video/tegra/dc/dc_priv.h')
0 files changed, 0 insertions, 0 deletions