diff options
| author | Ken Chang <kenc@nvidia.com> | 2011-07-19 10:29:33 +0800 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:47:52 -0800 |
| commit | 2caf1ddf1a97e06817c0aeb379b217add1454fd2 (patch) | |
| tree | 8f4e8958bcd011143b81df2beafba329f7706fac | |
| parent | 6b4cb234fc0392467d3c73b663a5bcd582165a4b (diff) | |
ARM: tegra: ventana: support power sequence timing
below variables should be defined according to power sequence
specifications of panels.
- timing between panel power on to lvds singal enable
- timing between lvds signal enable to backlight enable
bug 818959
(cherry picked from commit 38c3b4bc7fcda70df84bd4a10112cc1468f0a856)
(reviewed on http://git-master/r/41669)
Original-Change-Id: I4844baf2cb680e3e898bcf0907be57f29e0c71da
Reviewed-on: http://git-master/r/42967
Tested-by: Ken Chang <kenc@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Reviewed-by: ChihJen Hsu <chhsu@nvidia.com>
Rebase-Id: R09cc1fef411f47de9431aeb1e750d47309b79e89
| -rw-r--r-- | arch/arm/mach-tegra/board-ventana-panel.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/board-ventana-panel.c b/arch/arm/mach-tegra/board-ventana-panel.c index ce0f7caf2b1b..65ba1f4f96cc 100644 --- a/arch/arm/mach-tegra/board-ventana-panel.c +++ b/arch/arm/mach-tegra/board-ventana-panel.c @@ -42,6 +42,10 @@ #define ventana_hdmi_hpd TEGRA_GPIO_PN7 #define ventana_hdmi_enb TEGRA_GPIO_PV5 +/*panel power on sequence timing*/ +#define ventana_pnl_to_lvds_ms 0 +#define ventana_lvds_to_bl_ms 200 + static struct regulator *ventana_hdmi_reg = NULL; static struct regulator *ventana_hdmi_pll = NULL; @@ -106,7 +110,9 @@ static int ventana_panel_enable(void) } gpio_set_value(ventana_pnl_pwr_enb, 1); + mdelay(ventana_pnl_to_lvds_ms); gpio_set_value(ventana_lvds_shutdown, 1); + mdelay(ventana_lvds_to_bl_ms); return 0; } |