On Tue, 2011-08-30 at 16:21 +0530, Archit Taneja wrote:
> Add initial support for DSI video mode panels:
> - Add a new structure omap_dss_dsi_videomode_data in the member "panel" in
> omap_dss_device struct. This allows panel driver to configure dsi video_mode
> specific parameters.
> - Configure basic DSI video mode timing parameters: HBP, HFP, HSA, VBP, VFP,
> VSA,
> TL and VACT.
> - Configure DSI protocol engine registers for video_mode support.
> - Introduce functions dsi_video_mode_enable() and dsi_video_mode_disable()
> which
> enable/disable video mode for a given virtual channel and a given pixel
> format
> type.
>
> Things left for later
> - Add functions to check for errors in video mode timings provided by panel.
> - Configure timing registers required for command mode interleaving.
>
> Signed-off-by: Archit Taneja <arc...@ti.com>
> ---
> drivers/video/omap2/dss/dsi.c | 256
> ++++++++++++++++++++++++++++++++++++-----
> include/video/omapdss.h | 32 +++++
> 2 files changed, 259 insertions(+), 29 deletions(-)
>
> diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
> index 582ae7b..e3d5c38 100644
> --- a/drivers/video/omap2/dss/dsi.c
> +++ b/drivers/video/omap2/dss/dsi.c
> @@ -132,7 +132,7 @@ struct dsi_reg { u16 idx; };
> #define DSI_IRQ_TA_TIMEOUT (1 << 20)
> #define DSI_IRQ_ERROR_MASK \
> (DSI_IRQ_HS_TX_TIMEOUT | DSI_IRQ_LP_RX_TIMEOUT | DSI_IRQ_SYNC_LOST | \
> - DSI_IRQ_TA_TIMEOUT)
> + DSI_IRQ_TA_TIMEOUT | DSI_IRQ_SYNC_LOST)
> #define DSI_IRQ_CHANNEL_MASK 0xf
>
> /* Virtual channel interrupts */
> @@ -2472,6 +2472,12 @@ static int dsi_cio_init(struct omap_dss_device *dssdev)
>
> dsi_cio_timings(dsidev);
>
> + if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_VIDEO_MODE) {
> + /* DDR_CLK_ALWAYS_ON */
> + REG_FLD_MOD(dsidev, DSI_CLK_CTRL,
> + dssdev->panel.dsi_vm_data.ddr_clk_always_on, 13, 13);
> + }
> +
For the DDR clock to start, you need to send a null packet, don't you?
Tomi
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