The DSI driver currently relies on the omap_dss_device struct to receive the
video mode timings requested by the panel driver. This makes the DSI interface
driver dependent on the omap_dss_device struct.
Make the DSI driver data maintain it's own video mode timings field. The panel
driver is expected to call omapdss_dsi_set_videomode_timings() to configure the
video mode timings before the interface is enabled. The function takes in a
void pointer rather than a pointer to omap_dss_dsi_videomode_timings struct.
This is because this function will finally be an output op shared across
different outputs to set custom or private timings.
Signed-off-by: Archit Taneja <archit@xxxxxx>
---
drivers/video/omap2/dss/dsi.c | 52 ++++++++++++++++++++++++++++-------------
include/video/omapdss.h | 2 ++
2 files changed, 38 insertions(+), 16 deletions(-)
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 62549f6..6c2c746 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -336,6 +336,7 @@ struct dsi_data {
struct omap_video_timings timings;
enum omap_dss_dsi_pixel_format pix_fmt;
enum omap_dss_dsi_mode mode;
+ struct omap_dss_dsi_videomode_timings vm_timings;
};
struct dsi_packet_sent_handler_data {
@@ -2366,7 +2367,7 @@ static int dsi_cio_init(struct omap_dss_device *dssdev)
if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE) {
/* DDR_CLK_ALWAYS_ON */
REG_FLD_MOD(dsidev, DSI_CLK_CTRL,
- dssdev->panel.dsi_vm_timings.ddr_clk_always_on, 13, 13);
+ dsi->vm_timings.ddr_clk_always_on, 13, 13);
}
dsi->ulps_enabled = false;
@@ -2688,6 +2689,7 @@ void omapdss_dsi_vc_enable_hs(struct omap_dss_device *dssdev, int channel,
bool enable)
{
struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
+ struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
DSSDBG("dsi_vc_enable_hs(%d, %d)\n", channel, enable);
@@ -2704,7 +2706,7 @@ void omapdss_dsi_vc_enable_hs(struct omap_dss_device *dssdev, int channel,
dsi_force_tx_stop_mode_io(dsidev);
/* start the DDR clock by sending a NULL packet */
- if (dssdev->panel.dsi_vm_timings.ddr_clk_always_on && enable)
+ if (dsi->vm_timings.ddr_clk_always_on && enable)
dsi_vc_send_null(dssdev, channel);
}
EXPORT_SYMBOL(omapdss_dsi_vc_enable_hs);
@@ -3638,8 +3640,9 @@ static void dsi_config_vp_num_line_buffers(struct omap_dss_device *dssdev)
static void dsi_config_vp_sync_events(struct omap_dss_device *dssdev)
{
struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
- bool vsync_end = dssdev->panel.dsi_vm_timings.vp_vsync_end;
- bool hsync_end = dssdev->panel.dsi_vm_timings.vp_hsync_end;
+ struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
+ bool vsync_end = dsi->vm_timings.vp_vsync_end;
+ bool hsync_end = dsi->vm_timings.vp_hsync_end;
u32 r;
r = dsi_read_reg(dsidev, DSI_CTRL);
@@ -3656,10 +3659,11 @@ static void dsi_config_vp_sync_events(struct omap_dss_device *dssdev)
static void dsi_config_blanking_modes(struct omap_dss_device *dssdev)
{
struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
- int blanking_mode = dssdev->panel.dsi_vm_timings.blanking_mode;
- int hfp_blanking_mode = dssdev->panel.dsi_vm_timings.hfp_blanking_mode;
- int hbp_blanking_mode = dssdev->panel.dsi_vm_timings.hbp_blanking_mode;
- int hsa_blanking_mode = dssdev->panel.dsi_vm_timings.hsa_blanking_mode;
+ struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
+ int blanking_mode = dsi->vm_timings.blanking_mode;
+ int hfp_blanking_mode = dsi->vm_timings.hfp_blanking_mode;
+ int hbp_blanking_mode = dsi->vm_timings.hbp_blanking_mode;
+ int hsa_blanking_mode = dsi->vm_timings.hsa_blanking_mode;
u32 r;
/*
@@ -3992,14 +3996,14 @@ static void dsi_proto_timings(struct omap_dss_device *dssdev)
if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE) {
/* TODO: Implement a video mode check_timings function */
- int hsa = dssdev->panel.dsi_vm_timings.hsa;
- int hfp = dssdev->panel.dsi_vm_timings.hfp;
- int hbp = dssdev->panel.dsi_vm_timings.hbp;
- int vsa = dssdev->panel.dsi_vm_timings.vsa;
- int vfp = dssdev->panel.dsi_vm_timings.vfp;
- int vbp = dssdev->panel.dsi_vm_timings.vbp;
- int window_sync = dssdev->panel.dsi_vm_timings.window_sync;
- bool hsync_end = dssdev->panel.dsi_vm_timings.vp_hsync_end;
+ int hsa = dsi->vm_timings.hsa;
+ int hfp = dsi->vm_timings.hfp;
+ int hbp = dsi->vm_timings.hbp;
+ int vsa = dsi->vm_timings.vsa;
+ int vfp = dsi->vm_timings.vfp;
+ int vbp = dsi->vm_timings.vbp;
+ int window_sync = dsi->vm_timings.window_sync;
+ bool hsync_end = dsi->vm_timings.vp_hsync_end;
struct omap_video_timings *timings = &dsi->timings;
int bpp = dsi_get_pixel_size(dsi->pix_fmt);
int tl, t_he, width_bytes;
@@ -4715,6 +4719,22 @@ void omapdss_dsi_set_operation_mode(struct omap_dss_device *dssdev,
}
EXPORT_SYMBOL(omapdss_dsi_set_operation_mode);
+void omapdss_dsi_set_videomode_timings(struct omap_dss_device *dssdev,
+ void *timings)
+{
+ struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
+ struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
+ struct omap_dss_dsi_videomode_timings *vm_timings =
+ (struct omap_dss_dsi_videomode_timings *) timings;
+
+ mutex_lock(&dsi->lock);
+
+ dsi->vm_timings = *vm_timings;
+
+ mutex_unlock(&dsi->lock);
+}
+EXPORT_SYMBOL(omapdss_dsi_set_videomode_timings);
+
static int __init dsi_init_display(struct omap_dss_device *dssdev)
{
struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 363235c..faac986 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -726,6 +726,8 @@ void omapdss_dsi_set_pixel_format(struct omap_dss_device *dssdev,
enum omap_dss_dsi_pixel_format fmt);
void omapdss_dsi_set_operation_mode(struct omap_dss_device *dssdev,
enum omap_dss_dsi_mode mode);
+void omapdss_dsi_set_videomode_timings(struct omap_dss_device *dssdev,
+ void *timings);
int omap_dsi_update(struct omap_dss_device *dssdev, int channel,
void (*callback)(int, void *), void *data);
--
1.7.9.5
--
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