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7035046d6d
Currently the exclusivity is enabled when the rate is set by
the mode setting functions. These functions are called by
mode_set_nofb callback of drm_crc_helper. Then exclusivity
is disabled when tcon is disabled by atomic_disable
callback.
What happens is that mode_set_nofb can be called once when
mode changes, and afterwards the system can call atomic_enable
and atomic_disable multiple times without further calls to
mode_set_nofb.
This happens:
mode_set_nofb - clk exclusivity is enabled
atomic_enable
atomic_disable - clk exclusivity is disabled
atomic_enable
atomic_disable - clk exclusivity is already disabled, leading to WARN
in clk_rate_exclusive_put
Solution is to enable exclusivity in sun4i_tcon_channel_set_status.
Signed-off-by: Ondrej Jirman <megous@megous.com>
Cc: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180310110511.14697-1-megous@megous.com
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| .. | ||
| Kconfig | ||
| Makefile | ||
| sun4i_backend.c | ||
| sun4i_backend.h | ||
| sun4i_crtc.c | ||
| sun4i_crtc.h | ||
| sun4i_dotclock.c | ||
| sun4i_dotclock.h | ||
| sun4i_drv.c | ||
| sun4i_drv.h | ||
| sun4i_framebuffer.c | ||
| sun4i_framebuffer.h | ||
| sun4i_hdmi_ddc_clk.c | ||
| sun4i_hdmi_enc.c | ||
| sun4i_hdmi_i2c.c | ||
| sun4i_hdmi_tmds_clk.c | ||
| sun4i_hdmi.h | ||
| sun4i_layer.c | ||
| sun4i_layer.h | ||
| sun4i_lvds.c | ||
| sun4i_lvds.h | ||
| sun4i_rgb.c | ||
| sun4i_rgb.h | ||
| sun4i_tcon.c | ||
| sun4i_tcon.h | ||
| sun4i_tv.c | ||
| sun6i_drc.c | ||
| sun8i_csc.c | ||
| sun8i_csc.h | ||
| sun8i_mixer.c | ||
| sun8i_mixer.h | ||
| sun8i_ui_layer.c | ||
| sun8i_ui_layer.h | ||
| sun8i_ui_scaler.c | ||
| sun8i_ui_scaler.h | ||
| sun8i_vi_layer.c | ||
| sun8i_vi_layer.h | ||
| sun8i_vi_scaler.c | ||
| sun8i_vi_scaler.h | ||
| sunxi_engine.h | ||