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drm/i915: In intel_dp_init, replace read of DPCD with intel_dp_get_dpcd

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Eliminates an open-coded read and also gains the retry behaviour of
intel_dp_get_dpcd, which seems like a good idea.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Adam Jackson <ajax@redhat.com>
This commit is contained in:
Keith Packard 2011-07-25 20:01:56 -07:00
parent 26d61aad7a
commit 59f3e272d7
1 changed files with 3 additions and 5 deletions
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8
drivers/gpu/drm/i915/intel_dp.c
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@ -2015,7 +2015,7 @@ intel_dp_init(struct drm_device *dev, int output_reg)
/* Cache some DPCD data in the eDP case */
if (is_edp(intel_dp)) {
int ret;
bool ret;
u32 pp_on, pp_div;
pp_on = I915_READ(PCH_PP_ON_DELAYS);
@ -2028,11 +2028,9 @@ intel_dp_init(struct drm_device *dev, int output_reg)
dev_priv->panel_t12 *= 100; /* t12 in 100ms units */
ironlake_edp_panel_vdd_on(intel_dp);
ret = intel_dp_aux_native_read(intel_dp, DP_DPCD_REV,
intel_dp->dpcd,
sizeof(intel_dp->dpcd));
ret = intel_dp_get_dpcd(intel_dp);
ironlake_edp_panel_vdd_off(intel_dp);
if (ret == sizeof(intel_dp->dpcd)) {
if (ret) {
if (intel_dp->dpcd[DP_DPCD_REV] >= 0x11)
dev_priv->no_aux_handshake =
intel_dp->dpcd[DP_MAX_DOWNSPREAD] &