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authorTomi Valkeinen <tomi.valkeinen@ti.com>2015-04-10 12:48:39 +0300
committerTomi Valkeinen <tomi.valkeinen@ti.com>2015-06-17 15:44:29 +0300
commite4c5ae7fdfa6cae39b458abb99ed669ba3c19af0 (patch)
tree0d0f9a1316150e83f244bee25a26dd364a525ddd
parent7059e3d8d8f0d716f8a6664f365bcbef9d147905 (diff)
OMAPDSS: DISPC: scaler debug print
Improve the DISPC debug print for scaling. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
-rw-r--r--drivers/video/fbdev/omap2/dss/dispc.c18
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/video/fbdev/omap2/dss/dispc.c b/drivers/video/fbdev/omap2/dss/dispc.c
index 646d94a71a79..f8c9115cdb4b 100644
--- a/drivers/video/fbdev/omap2/dss/dispc.c
+++ b/drivers/video/fbdev/omap2/dss/dispc.c
@@ -2418,6 +2418,9 @@ static int dispc_ovl_calc_scaling_44xx(unsigned long pclk, unsigned long lclk,
return 0;
}
+#define DIV_FRAC(dividend, divisor) \
+ ((dividend) * 100 / (divisor) - ((dividend) / (divisor) * 100))
+
static int dispc_ovl_calc_scaling(unsigned long pclk, unsigned long lclk,
enum omap_overlay_caps caps,
const struct omap_video_timings *mgr_timings,
@@ -2477,8 +2480,19 @@ static int dispc_ovl_calc_scaling(unsigned long pclk, unsigned long lclk,
if (ret)
return ret;
- DSSDBG("required core clk rate = %lu Hz\n", core_clk);
- DSSDBG("current core clk rate = %lu Hz\n", dispc_core_clk_rate());
+ DSSDBG("%dx%d -> %dx%d (%d.%02d x %d.%02d), decim %dx%d %dx%d (%d.%02d x %d.%02d), taps %d, req clk %lu, cur clk %lu\n",
+ width, height,
+ out_width, out_height,
+ out_width / width, DIV_FRAC(out_width, width),
+ out_height / height, DIV_FRAC(out_height, height),
+
+ decim_x, decim_y,
+ width / decim_x, height / decim_y,
+ out_width / (width / decim_x), DIV_FRAC(out_width, width / decim_x),
+ out_height / (height / decim_y), DIV_FRAC(out_height, height / decim_y),
+
+ *five_taps ? 5 : 3,
+ core_clk, dispc_core_clk_rate());
if (!core_clk || core_clk > dispc_core_clk_rate()) {
DSSERR("failed to set up scaling, "