[PATCH 09/11] OMAPDSS: DISPC: scaler debug print
STALE4128d
From: Tomi Valkeinen <hidden>
Date: 2015-06-17 12:54:33
Also in:
linux-omap
Subsystem:
framebuffer layer, omap display subsystem and framebuffer support (dss2), the rest · Maintainers:
Helge Deller, Linus Torvalds
Improve the DISPC debug print for scaling. Signed-off-by: Tomi Valkeinen <redacted> --- drivers/video/fbdev/omap2/dss/dispc.c | 18 ++++++++++++++++-- 1 file 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, "
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2.1.4