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OMAPDSS: DSI: features: combine dsi & dispc hsdivs 

The HSDIV outputs of DSI PLL (and also other PLLs) all have the same
bit width for the divider value.

Simplify the code by merging HSDIV divider widths into one width.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
hifive-unleashed-5.1
Tomi Valkeinen 2014-08-07 14:29:24 +03:00
parent acf604b709
commit dbb26e53e5
3 changed files with 11 additions and 17 deletions
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13
drivers/video/fbdev/omap2/dss/dsi.c
View File

@ -374,7 +374,7 @@ struct dsi_data {
#endif
/* DSI PLL Parameter Ranges */
unsigned long regm_max, regn_max;
unsigned long regm_dispc_max, regm_dsi_max;
unsigned long regm_hsdiv_max;
unsigned long fint_min, fint_max;
unsigned long lpdiv_max;
@ -1414,7 +1414,7 @@ bool dsi_hsdiv_calc(struct platform_device *dsidev, unsigned long pll,
out_max = dss_feat_get_param_max(FEAT_PARAM_DSS_FCK);
regm_start = max(DIV_ROUND_UP(pll, out_max), 1ul);
regm_stop = min(pll / out_min, dsi->regm_dispc_max);
regm_stop = min(pll / out_min, dsi->regm_hsdiv_max);
for (regm = regm_start; regm <= regm_stop; ++regm) {
out = pll / regm;
@ -1477,10 +1477,10 @@ static int dsi_calc_clock_rates(struct platform_device *dsidev,
if (cinfo->regm == 0 || cinfo->regm > dsi->regm_max)
return -EINVAL;
if (cinfo->regm_hsdiv[HSDIV_DISPC] > dsi->regm_dispc_max)
if (cinfo->regm_hsdiv[HSDIV_DISPC] > dsi->regm_hsdiv_max)
return -EINVAL;
if (cinfo->regm_hsdiv[HSDIV_DSI] > dsi->regm_dsi_max)
if (cinfo->regm_hsdiv[HSDIV_DSI] > dsi->regm_hsdiv_max)
return -EINVAL;
cinfo->fint = clk_get_rate(dsi->sys_clk) / cinfo->regn;
@ -5232,9 +5232,8 @@ static void dsi_calc_clock_param_ranges(struct platform_device *dsidev)
dsi->regn_max = dss_feat_get_param_max(FEAT_PARAM_DSIPLL_REGN);
dsi->regm_max = dss_feat_get_param_max(FEAT_PARAM_DSIPLL_REGM);
dsi->regm_dispc_max =
dss_feat_get_param_max(FEAT_PARAM_DSIPLL_REGM_DISPC);
dsi->regm_dsi_max = dss_feat_get_param_max(FEAT_PARAM_DSIPLL_REGM_DSI);
dsi->regm_hsdiv_max =
dss_feat_get_param_max(FEAT_PARAM_DSIPLL_REGM_HSDIV);
dsi->fint_min = dss_feat_get_param_min(FEAT_PARAM_DSIPLL_FINT);
dsi->fint_max = dss_feat_get_param_max(FEAT_PARAM_DSIPLL_FINT);
dsi->lpdiv_max = dss_feat_get_param_max(FEAT_PARAM_DSIPLL_LPDIV);

12
drivers/video/fbdev/omap2/dss/dss_features.c
View File

@ -439,8 +439,7 @@ static const struct dss_param_range omap2_dss_param_range[] = {
[FEAT_PARAM_DSS_PCD] = { 2, 255 },
[FEAT_PARAM_DSIPLL_REGN] = { 0, 0 },
[FEAT_PARAM_DSIPLL_REGM] = { 0, 0 },
[FEAT_PARAM_DSIPLL_REGM_DISPC] = { 0, 0 },
[FEAT_PARAM_DSIPLL_REGM_DSI] = { 0, 0 },
[FEAT_PARAM_DSIPLL_REGM_HSDIV] = { 0, 0 },
[FEAT_PARAM_DSIPLL_FINT] = { 0, 0 },
[FEAT_PARAM_DSIPLL_LPDIV] = { 0, 0 },
[FEAT_PARAM_DOWNSCALE] = { 1, 2 },
@ -456,8 +455,7 @@ static const struct dss_param_range omap3_dss_param_range[] = {
[FEAT_PARAM_DSS_PCD] = { 1, 255 },
[FEAT_PARAM_DSIPLL_REGN] = { 0, (1 << 7) - 1 },
[FEAT_PARAM_DSIPLL_REGM] = { 0, (1 << 11) - 1 },
[FEAT_PARAM_DSIPLL_REGM_DISPC] = { 0, (1 << 4) - 1 },
[FEAT_PARAM_DSIPLL_REGM_DSI] = { 0, (1 << 4) - 1 },
[FEAT_PARAM_DSIPLL_REGM_HSDIV] = { 0, (1 << 4) - 1 },
[FEAT_PARAM_DSIPLL_FINT] = { 750000, 2100000 },
[FEAT_PARAM_DSIPLL_LPDIV] = { 1, (1 << 13) - 1},
[FEAT_PARAM_DSI_FCK] = { 0, 173000000 },
@ -477,8 +475,7 @@ static const struct dss_param_range omap4_dss_param_range[] = {
[FEAT_PARAM_DSS_PCD] = { 1, 255 },
[FEAT_PARAM_DSIPLL_REGN] = { 0, (1 << 8) - 1 },
[FEAT_PARAM_DSIPLL_REGM] = { 0, (1 << 12) - 1 },
[FEAT_PARAM_DSIPLL_REGM_DISPC] = { 0, (1 << 5) - 1 },
[FEAT_PARAM_DSIPLL_REGM_DSI] = { 0, (1 << 5) - 1 },
[FEAT_PARAM_DSIPLL_REGM_HSDIV] = { 0, (1 << 5) - 1 },
[FEAT_PARAM_DSIPLL_FINT] = { 500000, 2500000 },
[FEAT_PARAM_DSIPLL_LPDIV] = { 0, (1 << 13) - 1 },
[FEAT_PARAM_DSI_FCK] = { 0, 170000000 },
@ -491,8 +488,7 @@ static const struct dss_param_range omap5_dss_param_range[] = {
[FEAT_PARAM_DSS_PCD] = { 1, 255 },
[FEAT_PARAM_DSIPLL_REGN] = { 0, (1 << 8) - 1 },
[FEAT_PARAM_DSIPLL_REGM] = { 0, (1 << 12) - 1 },
[FEAT_PARAM_DSIPLL_REGM_DISPC] = { 0, (1 << 5) - 1 },
[FEAT_PARAM_DSIPLL_REGM_DSI] = { 0, (1 << 5) - 1 },
[FEAT_PARAM_DSIPLL_REGM_HSDIV] = { 0, (1 << 5) - 1 },
[FEAT_PARAM_DSIPLL_FINT] = { 150000, 52000000 },
[FEAT_PARAM_DSIPLL_LPDIV] = { 0, (1 << 13) - 1 },
[FEAT_PARAM_DSI_FCK] = { 0, 209250000 },

3
drivers/video/fbdev/omap2/dss/dss_features.h
View File

@ -88,8 +88,7 @@ enum dss_range_param {
FEAT_PARAM_DSS_PCD,
FEAT_PARAM_DSIPLL_REGN,
FEAT_PARAM_DSIPLL_REGM,
FEAT_PARAM_DSIPLL_REGM_DISPC,
FEAT_PARAM_DSIPLL_REGM_DSI,
FEAT_PARAM_DSIPLL_REGM_HSDIV,
FEAT_PARAM_DSIPLL_FINT,
FEAT_PARAM_DSIPLL_LPDIV,
FEAT_PARAM_DSI_FCK,