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OMAPDSS: FEATURES: Create a range param to get max downscaling 

Create a dss_range_param member called FEAT_PARAM_DOWNSCALE to get the maximum
downscaling possible on the current platform. Use this in
dispc_ovl_calc_scaling().

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Archit Taneja 2011-09-08 13:25:17 +05:30 committed by Tomi Valkeinen
parent 79ad75f27b
commit 0373cac6cc
3 changed files with 5 additions and 1 deletions
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2
drivers/video/omap2/dss/dispc.c
View File

@ -1692,7 +1692,7 @@ static int dispc_ovl_calc_scaling(enum omap_plane plane,
enum omap_color_mode color_mode, bool *five_taps)
{
struct omap_overlay *ovl = omap_dss_get_overlay(plane);
const int maxdownscale = cpu_is_omap34xx() ? 4 : 2;
const int maxdownscale = dss_feat_get_param_max(FEAT_PARAM_DOWNSCALE);
unsigned long fclk = 0;
if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) {

3
drivers/video/omap2/dss/dss_features.c
View File

@ -288,6 +288,7 @@ static const struct dss_param_range omap2_dss_param_range[] = {
[FEAT_PARAM_DSIPLL_REGM_DSI] = { 0, 0 },
[FEAT_PARAM_DSIPLL_FINT] = { 0, 0 },
[FEAT_PARAM_DSIPLL_LPDIV] = { 0, 0 },
[FEAT_PARAM_DOWNSCALE] = { 1, 2 },
};
static const struct dss_param_range omap3_dss_param_range[] = {
@ -299,6 +300,7 @@ static const struct dss_param_range omap3_dss_param_range[] = {
[FEAT_PARAM_DSIPLL_REGM_DSI] = { 0, (1 << 4) - 1 },
[FEAT_PARAM_DSIPLL_FINT] = { 750000, 2100000 },
[FEAT_PARAM_DSIPLL_LPDIV] = { 1, (1 << 13) - 1},
[FEAT_PARAM_DOWNSCALE] = { 1, 4 },
};
static const struct dss_param_range omap4_dss_param_range[] = {
@ -310,6 +312,7 @@ static const struct dss_param_range omap4_dss_param_range[] = {
[FEAT_PARAM_DSIPLL_REGM_DSI] = { 0, (1 << 5) - 1 },
[FEAT_PARAM_DSIPLL_FINT] = { 500000, 2500000 },
[FEAT_PARAM_DSIPLL_LPDIV] = { 0, (1 << 13) - 1 },
[FEAT_PARAM_DOWNSCALE] = { 1, 4 },
};
/* OMAP2 DSS Features */

1
drivers/video/omap2/dss/dss_features.h
View File

@ -84,6 +84,7 @@ enum dss_range_param {
FEAT_PARAM_DSIPLL_REGM_DSI,
FEAT_PARAM_DSIPLL_FINT,
FEAT_PARAM_DSIPLL_LPDIV,
FEAT_PARAM_DOWNSCALE,
};
/* DSS Feature Functions */