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OMAPDSS: SDI: Configure dss_lcd_mgr_config struct with lcd manager parameters 

Create a dss_lcd_mgr_config struct instance in SDI. Fill up all the parameters
of the struct with configurations held by the panel, and the configurations
required by SDI.

Use these to write to the DISPC registers. These direct register writes would be
later replaced by a function which applies the configuration using the shadow
register programming model.

Create function sdi_config_lcd_manager() which fills the mgr_config parameters
and writes to the DISPC registers.

Signed-off-by: Archit Taneja <archit@ti.com>
This commit is contained in:
Archit Taneja 2012-06-29 14:33:18 +05:30
parent 7d2572f8b3
commit 37a579903e
1 changed files with 26 additions and 16 deletions
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42
drivers/video/omap2/dss/sdi.c
View File

@ -32,18 +32,34 @@
static struct {
bool update_enabled;
struct regulator *vdds_sdi_reg;
struct dss_lcd_mgr_config mgr_config;
} sdi;
static void sdi_basic_init(struct omap_dss_device *dssdev)
static void sdi_config_lcd_manager(struct omap_dss_device *dssdev)
{
dispc_mgr_set_io_pad_mode(DSS_IO_PAD_MODE_BYPASS);
dispc_mgr_enable_stallmode(dssdev->manager->id, false);
sdi.mgr_config.io_pad_mode = DSS_IO_PAD_MODE_BYPASS;
sdi.mgr_config.stallmode = false;
sdi.mgr_config.fifohandcheck = false;
sdi.mgr_config.video_port_width = 24;
sdi.mgr_config.lcden_sig_polarity = 1;
dispc_mgr_set_io_pad_mode(sdi.mgr_config.io_pad_mode);
dispc_mgr_enable_stallmode(dssdev->manager->id,
sdi.mgr_config.stallmode);
dispc_mgr_enable_fifohandcheck(dssdev->manager->id,
sdi.mgr_config.fifohandcheck);
dispc_mgr_set_clock_div(dssdev->manager->id,
&sdi.mgr_config.clock_info);
dispc_mgr_set_tft_data_lines(dssdev->manager->id,
sdi.mgr_config.video_port_width);
dispc_lcd_enable_signal_polarity(sdi.mgr_config.lcden_sig_polarity);
dispc_mgr_set_lcd_type_tft(dssdev->manager->id);
dispc_mgr_set_tft_data_lines(dssdev->manager->id, 24);
dispc_lcd_enable_signal_polarity(1);
}
int omapdss_sdi_display_enable(struct omap_dss_device *dssdev)
@ -51,8 +67,6 @@ int omapdss_sdi_display_enable(struct omap_dss_device *dssdev)
struct omap_video_timings *t = &dssdev->panel.timings;
struct dss_clock_info dss_cinfo;
struct dispc_clock_info dispc_cinfo;
u16 lck_div, pck_div;
unsigned long fck;
unsigned long pck;
int r;
@ -75,8 +89,6 @@ int omapdss_sdi_display_enable(struct omap_dss_device *dssdev)
if (r)
goto err_get_dispc;
sdi_basic_init(dssdev);
/* 15.5.9.1.2 */
dssdev->panel.timings.data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE;
dssdev->panel.timings.sync_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE;
@ -85,11 +97,9 @@ int omapdss_sdi_display_enable(struct omap_dss_device *dssdev)
if (r)
goto err_calc_clock_div;
fck = dss_cinfo.fck;
lck_div = dispc_cinfo.lck_div;
pck_div = dispc_cinfo.pck_div;
sdi.mgr_config.clock_info = dispc_cinfo;
pck = fck / lck_div / pck_div / 1000;
pck = dss_cinfo.fck / dispc_cinfo.lck_div / dispc_cinfo.pck_div / 1000;
if (pck != t->pixel_clock) {
DSSWARN("Could not find exact pixel clock. Requested %d kHz, "
@ -106,7 +116,7 @@ int omapdss_sdi_display_enable(struct omap_dss_device *dssdev)
if (r)
goto err_set_dss_clock_div;
dispc_mgr_set_clock_div(dssdev->manager->id, &dispc_cinfo);
sdi_config_lcd_manager(dssdev);
dss_sdi_init(dssdev->phy.sdi.datapairs);
r = dss_sdi_enable();