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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2010-07-20 22:44:45 (GMT) |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2010-09-18 14:46:19 (GMT) |
| commit | f899fc64cda8569d0529452aafc0da31c042df2e (patch) | |
| tree | 61b6d32abe3524b83abc9d8b9382e3f82225cd64 /drivers/gpu/drm/i915/intel_drv.h | |
| parent | 373a3cf744c774478f44921c50011b896ab08f9d (diff) | |
| download | linux-fsl-qoriq-f899fc64cda8569d0529452aafc0da31c042df2e.tar.xz | |
drm/i915: use GMBUS to manage i2c links
Use the GMBUS interface rather than direct bit banging to grab the EDID
over DDC (and for other forms of auxiliary communication with external
display controllers). The hope is that this method will be much faster
and more reliable than bit banging for fetching EDIDs from buggy monitors
or through switches, though we still preserve the bit banging as a
fallback in case GMBUS fails.
Based on an original patch by Jesse Barnes.
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_drv.h')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_drv.h | 19 |
1 files changed, 1 insertions, 18 deletions
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 8fe6b73..60ce930 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -26,8 +26,6 @@ #define __INTEL_DRV_H__ #include <linux/i2c.h> -#include <linux/i2c-id.h> -#include <linux/i2c-algo-bit.h> #include "i915_drv.h" #include "drm_crtc.h" #include "drm_crtc_helper.h" @@ -127,13 +125,6 @@ intel_mode_get_pixel_multiplier(const struct drm_display_mode *mode) return (mode->private_flags & INTEL_MODE_PIXEL_MULTIPLIER_MASK) >> INTEL_MODE_PIXEL_MULTIPLIER_SHIFT; } -struct intel_i2c_chan { - struct intel_encoder *encoder; - u32 reg; /* GPIO reg */ - struct i2c_adapter adapter; - struct i2c_algo_bit_data algo; -}; - struct intel_framebuffer { struct drm_framebuffer base; struct drm_gem_object *obj; @@ -149,8 +140,6 @@ struct intel_fbdev { struct intel_encoder { struct drm_encoder base; int type; - struct i2c_adapter *i2c_bus; - struct i2c_adapter *ddc_bus; bool load_detect_temp; bool needs_tv_clock; void (*hot_plug)(struct intel_encoder *); @@ -206,14 +195,8 @@ struct intel_unpin_work { bool enable_stall_check; }; -struct i2c_adapter *intel_i2c_create(struct intel_encoder *encoder, - const u32 reg, - const char *name); -void intel_i2c_destroy(struct i2c_adapter *adapter); int intel_ddc_get_modes(struct drm_connector *c, struct i2c_adapter *adapter); -extern bool intel_ddc_probe(struct intel_encoder *intel_encoder); -void intel_i2c_quirk_set(struct drm_device *dev, bool enable); -void intel_i2c_reset_gmbus(struct drm_device *dev); +extern bool intel_ddc_probe(struct intel_encoder *intel_encoder, int ddc_bus); extern void intel_crt_init(struct drm_device *dev); extern void intel_hdmi_init(struct drm_device *dev, int sdvox_reg); |