OMAPDSS: RFBI: Add function to set panel size
RFBI drivers requires configuration of the update area. Since we don't support
partial updates, the size to be configures is the panel size itself.
Add a timings field in RFBI's driver data. Apart from x_res and y_res, all the
other fields are configured to an initial value when RFBI is enabled. A panel
driver is expected to call omapdss_rfbi_set_size() configure the size of the
panel.
Signed-off-by: Archit Taneja <archit@ti.com>
diff --git a/drivers/video/omap2/displays/panel-n8x0.c b/drivers/video/omap2/displays/panel-n8x0.c
index 1d421b5..839ef84 100644
--- a/drivers/video/omap2/displays/panel-n8x0.c
+++ b/drivers/video/omap2/displays/panel-n8x0.c
@@ -297,6 +297,9 @@
goto err_plat_en;
}
+ omapdss_rfbi_set_size(dssdev, dssdev->panel.timings.x_res,
+ dssdev->panel.timings.y_res);
+
r = omapdss_rfbi_display_enable(dssdev);
if (r)
goto err_rfbi_en;
diff --git a/drivers/video/omap2/dss/rfbi.c b/drivers/video/omap2/dss/rfbi.c
index 6bc2648..40abee7 100644
--- a/drivers/video/omap2/dss/rfbi.c
+++ b/drivers/video/omap2/dss/rfbi.c
@@ -111,6 +111,8 @@
struct omap_dss_device *dssdev[2];
struct semaphore bus_lock;
+
+ struct omap_video_timings timings;
} rfbi;
static inline void rfbi_write_reg(const struct rfbi_reg idx, u32 val)
@@ -305,26 +307,15 @@
{
u32 l;
int r;
- struct omap_video_timings timings;
- u16 width, height;
-
- dssdev->driver->get_resolution(dssdev, &width, &height);
-
- timings.x_res = width;
- timings.y_res = height;
- timings.hsw = 1;
- timings.hfp = 1;
- timings.hbp = 1;
- timings.vsw = 1;
- timings.vfp = 0;
- timings.vbp = 0;
+ u16 width = rfbi.timings.x_res;
+ u16 height = rfbi.timings.y_res;
/*BUG_ON(callback == 0);*/
BUG_ON(rfbi.framedone_callback != NULL);
DSSDBG("rfbi_transfer_area %dx%d\n", width, height);
- dss_mgr_set_timings(dssdev->manager, &timings);
+ dss_mgr_set_timings(dssdev->manager, &rfbi.timings);
r = dss_mgr_enable(dssdev->manager);
if (r)
@@ -787,6 +778,13 @@
}
EXPORT_SYMBOL(omap_rfbi_update);
+void omapdss_rfbi_set_size(struct omap_dss_device *dssdev, u16 w, u16 h)
+{
+ rfbi.timings.x_res = w;
+ rfbi.timings.y_res = h;
+}
+EXPORT_SYMBOL(omapdss_rfbi_set_size);
+
static void rfbi_dump_regs(struct seq_file *s)
{
#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, rfbi_read_reg(r))
@@ -841,6 +839,27 @@
mgr_config.lcden_sig_polarity = 0;
dss_mgr_set_lcd_config(dssdev->manager, &mgr_config);
+
+ /*
+ * Set rfbi.timings with default values, the x_res and y_res fields
+ * are expected to be already configured by the panel driver via
+ * omapdss_rfbi_set_size()
+ */
+ rfbi.timings.hsw = 1;
+ rfbi.timings.hfp = 1;
+ rfbi.timings.hbp = 1;
+ rfbi.timings.vsw = 1;
+ rfbi.timings.vfp = 0;
+ rfbi.timings.vbp = 0;
+
+ rfbi.timings.interlace = false;
+ rfbi.timings.hsync_level = OMAPDSS_SIG_ACTIVE_HIGH;
+ rfbi.timings.vsync_level = OMAPDSS_SIG_ACTIVE_HIGH;
+ rfbi.timings.data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE;
+ rfbi.timings.de_level = OMAPDSS_SIG_ACTIVE_HIGH;
+ rfbi.timings.sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES;
+
+ dss_mgr_set_timings(dssdev->manager, &rfbi.timings);
}
int omapdss_rfbi_display_enable(struct omap_dss_device *dssdev)
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index b6b03ce..ea7d598 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -753,5 +753,6 @@
void *data);
int omap_rfbi_configure(struct omap_dss_device *dssdev, int pixel_size,
int data_lines);
+void omapdss_rfbi_set_size(struct omap_dss_device *dssdev, u16 w, u16 h);
#endif