diff options
| author | Stefan Agner <stefan@agner.ch> | 2015-12-02 23:39:40 +0100 |
|---|---|---|
| committer | Stefan Agner <stefan@agner.ch> | 2016-04-26 05:27:18 +0200 |
| commit | fb127b7943c9262f5d95f402922d92b9d6c1dad2 (patch) | |
| tree | be4cb4f3caaec3157930790f306fe8d3055fe17d /drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c | |
| parent | drm/fsl-dcu: use common clock framework for pixel clock divider (diff) | |
| download | linux-fb127b7943c9262f5d95f402922d92b9d6c1dad2.tar.xz linux-fb127b7943c9262f5d95f402922d92b9d6c1dad2.zip | |
drm/fsl-dcu: add TCON driver
Add driver for the TCON (timing controller) module. The TCON module
is a separate module attached after the DCU (display controller
unit). Each DCU instance has its own, directly connected TCON
instance. The DCU's RGB and timing signals are passing through
the TCON module. TCON can provide timing signals for raw TFT panels
or operate in a bypass mode which leaves all signals unaltered.
The driver currently only supports the bypass mode.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stefan Agner <stefan@agner.ch>
Diffstat (limited to 'drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c')
| -rw-r--r-- | drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c index 8780deba5e8a..f586f1e681d7 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c @@ -17,6 +17,7 @@ #include <drm/drm_panel.h> #include "fsl_dcu_drm_drv.h" +#include "fsl_tcon.h" static int fsl_dcu_drm_encoder_atomic_check(struct drm_encoder *encoder, @@ -28,10 +29,20 @@ fsl_dcu_drm_encoder_atomic_check(struct drm_encoder *encoder, static void fsl_dcu_drm_encoder_disable(struct drm_encoder *encoder) { + struct drm_device *dev = encoder->dev; + struct fsl_dcu_drm_device *fsl_dev = dev->dev_private; + + if (fsl_dev->tcon) + fsl_tcon_bypass_disable(fsl_dev->tcon); } static void fsl_dcu_drm_encoder_enable(struct drm_encoder *encoder) { + struct drm_device *dev = encoder->dev; + struct fsl_dcu_drm_device *fsl_dev = dev->dev_private; + + if (fsl_dev->tcon) + fsl_tcon_bypass_enable(fsl_dev->tcon); } static const struct drm_encoder_helper_funcs encoder_helper_funcs = { |