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drm/i915: Introduce a get_aux_send_ctl() vfunc

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We need a bit more flexibility here in the future, bits get shuffled
around.

v2: more descriptive commit message (Jani Nikula)

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Damien Lespiau 2014-01-21 13:37:15 +00:00 committed by Daniel Vetter
parent 788d4433dc
commit 153b110038
2 changed files with 14 additions and 4 deletions
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10
drivers/gpu/drm/i915/intel_dp.c
View file

@ -493,10 +493,10 @@ intel_dp_aux_ch(struct intel_dp *intel_dp,
}
while ((aux_clock_divider = intel_dp->get_aux_clock_divider(intel_dp, clock++))) {
u32 send_ctl = i9xx_get_aux_send_ctl(intel_dp,
has_aux_irq,
send_bytes,
aux_clock_divider);
u32 send_ctl = intel_dp->get_aux_send_ctl(intel_dp,
has_aux_irq,
send_bytes,
aux_clock_divider);
/* Must try at least 3 times according to DP spec */
for (try = 0; try < 5; try++) {
@ -3724,6 +3724,8 @@ intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
else
intel_dp->get_aux_clock_divider = i9xx_get_aux_clock_divider;
intel_dp->get_aux_send_ctl = i9xx_get_aux_send_ctl;
/* Preserve the current hw state. */
intel_dp->DP = I915_READ(intel_dp->output_reg);
intel_dp->attached_connector = intel_connector;

8
drivers/gpu/drm/i915/intel_drv.h
View file

@ -495,6 +495,14 @@ struct intel_dp {
struct intel_connector *attached_connector;
uint32_t (*get_aux_clock_divider)(struct intel_dp *dp, int index);
/*
* This function returns the value we have to program the AUX_CTL
* register with to kick off an AUX transaction.
*/
uint32_t (*get_aux_send_ctl)(struct intel_dp *dp,
bool has_aux_irq,
int send_bytes,
uint32_t aux_clock_divider);
};
struct intel_digital_port {