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Commit 0373cac6 authored by Archit Taneja's avatar Archit Taneja Committed by Tomi Valkeinen
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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: default avatarArchit Taneja <archit@ti.com>
Signed-off-by: default avatarTomi Valkeinen <tomi.valkeinen@ti.com>
parent 79ad75f2

drivers/video/omap2/dss/dispc.c

+1 −1
Original line number Diff line number Diff line
@@ -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) {

drivers/video/omap2/dss/dss_features.c

+3 −0
Original line number Diff line number Diff line
@@ -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 */

drivers/video/omap2/dss/dss_features.h

+1 −0
Original line number Diff line number Diff line
@@ -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 */