forked from Minki/linux
f0ac9bebf1
sig_cfg.clk_pol controls the 'di0_polarity_disp_clk' bit of register IPUx_DI0_GENERAL through the following code in imx-drm/ipu-v3/ipu-di.c: if (!sig->clk_pol) di_gen |= DI_GEN_POLARITY_DISP_CLK; With 'di0_polarity_disp_clk' bit set we do not have stable HDMI output on mx6solo: contours of pictures look jittery and the white colour does not appear really white. Russell King initially reported this problem at: http://www.spinics.net/lists/arm-kernel/msg279805.html Inverting 'di0_polarity_disp_clk' leads to stable HDMI output image. Tested on the following boards: - mx6solowandboard (HDMI output) - mx6qwandboard (HDMI output) - mx6qsabrelite (LVDS) - mx6qsabresd (HDMI output and LVDS) - mx6dlsabresd (HDMI output) - mx53qsb (parallel WVGA display) Reported-by: Russell King <rmk+kernel@arm.linux.org.uk> Suggested-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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| .. | ||
| ipu-v3 | ||
| imx-drm-core.c | ||
| imx-drm.h | ||
| imx-fb.c | ||
| imx-fbdev.c | ||
| imx-ldb.c | ||
| imx-tve.c | ||
| ipuv3-crtc.c | ||
| ipuv3-plane.c | ||
| ipuv3-plane.h | ||
| Kconfig | ||
| Makefile | ||
| parallel-display.c | ||
| TODO | ||