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OMAPDSS: RFBI: Add function to set panel size

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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>
This commit is contained in:
Archit Taneja 2012-08-13 15:12:10 +05:30
parent 43eab86167
commit 6ff9dd5a6f
3 changed files with 37 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/video/omap2/displays/panel-n8x0.c
View File

@ -297,6 +297,9 @@ static int n8x0_panel_power_on(struct omap_dss_device *dssdev)
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;

47
drivers/video/omap2/dss/rfbi.c
View File

@ -111,6 +111,8 @@ static struct {
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 @@ static int rfbi_transfer_area(struct omap_dss_device *dssdev,
{
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 @@ int omap_rfbi_update(struct omap_dss_device *dssdev, void (*callback)(void *),
}
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 @@ static void rfbi_config_lcd_manager(struct omap_dss_device *dssdev)
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)

1
include/video/omapdss.h
View File

@ -753,5 +753,6 @@ int omap_rfbi_update(struct omap_dss_device *dssdev, void (*callback)(void *),
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