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| author | YoungJun Cho <yj44.cho@samsung.com> | 2014-04-24 14:07:09 +0900 |
|---|---|---|
| committer | Chanho Park <chanho61.park@samsung.com> | 2014-11-18 11:59:57 +0900 |
| commit | 90c3ebca84b65a297881775ecdbbebb1cc0a9578 (patch) | |
| tree | a8c6bb5ad0272f391da0c06568d9fa1985f1ebae /drivers/gpu/drm | |
| parent | ba5f094389969a39faa485fbc7fd5d29330e9a79 (diff) | |
| download | linux-3.10-90c3ebca84b65a297881775ecdbbebb1cc0a9578.tar.gz linux-3.10-90c3ebca84b65a297881775ecdbbebb1cc0a9578.tar.bz2 linux-3.10-90c3ebca84b65a297881775ecdbbebb1cc0a9578.zip | |
drm/exynos: dsi: add TE handler to support LCD I80 interface
To support LCD I80 interface, the DSI host calls this handler
to notify the panel tearing effect synchronization signal to
the CRTC device manager to trigger to transfer video image.
Change-Id: Ic07e1bc6ee5744c7f7abea2e4ff99eeca86c8a3f
Signed-off-by: YoungJun Cho <yj44.cho@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_dsi.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c index bfc6f233952..a4dd06a28ef 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c @@ -23,6 +23,7 @@ #include <video/mipi_display.h> #include <video/videomode.h> +#include "exynos_drm_crtc.h" #include "exynos_drm_drv.h" /* returns true iff both arguments logically differs */ @@ -1032,10 +1033,22 @@ static ssize_t exynos_dsi_host_transfer(struct mipi_dsi_host *host, return (ret < 0) ? ret : xfer.rx_done; } +static int exynos_dsi_host_te_handler(struct mipi_dsi_host *host) +{ + struct exynos_dsi *dsi = host_to_dsi(host); + struct drm_encoder *encoder = dsi->encoder; + + if (!(dsi->state & DSIM_STATE_ENABLED)) + return -EPERM; + + return exynos_drm_crtc_te_handler(encoder->crtc); +} + static const struct mipi_dsi_host_ops exynos_dsi_ops = { .attach = exynos_dsi_host_attach, .detach = exynos_dsi_host_detach, .transfer = exynos_dsi_host_transfer, + .te_handler = exynos_dsi_host_te_handler, }; static int exynos_dsi_poweron(struct exynos_dsi *dsi) |