From 94ca719ee47f287b11942c899e6b81045311b786 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Fri, 13 Mar 2015 19:40:31 +0200 Subject: [PATCH] drm/i915: Unconfuse DP link rate array names MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit To keep things clear rename the intel_dp->supported_rates[] to intel_dp->sink_rates[], and rename the supported_rates[] name we used elsewhere for the intersection of source and sink rates to common_rates[]. Cc: Sonika Jindal Signed-off-by: Ville Syrjälä Reviewed-by: Sonika Jindal Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_dp.c | 70 ++++++++++++++++++------------------- drivers/gpu/drm/i915/intel_dp_mst.c | 2 +- drivers/gpu/drm/i915/intel_drv.h | 5 +-- 3 files changed, 39 insertions(+), 38 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index e2c5491..5256c06 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1135,9 +1135,9 @@ hsw_dp_set_ddi_pll_sel(struct intel_crtc_state *pipe_config, int link_bw) static int intel_dp_sink_rates(struct intel_dp *intel_dp, const int **sink_rates) { - if (intel_dp->num_supported_rates) { - *sink_rates = intel_dp->supported_rates; - return intel_dp->num_supported_rates; + if (intel_dp->num_sink_rates) { + *sink_rates = intel_dp->sink_rates; + return intel_dp->num_sink_rates; } *sink_rates = default_rates; @@ -1203,7 +1203,7 @@ intel_dp_set_clock(struct intel_encoder *encoder, static int intersect_rates(const int *source_rates, int source_len, const int *sink_rates, int sink_len, - int *supported_rates) + int *common_rates) { int i = 0, j = 0, k = 0; @@ -1211,7 +1211,7 @@ static int intersect_rates(const int *source_rates, int source_len, if (source_rates[i] == sink_rates[j]) { if (WARN_ON(k >= DP_MAX_SUPPORTED_RATES)) return k; - supported_rates[k] = source_rates[i]; + common_rates[k] = source_rates[i]; ++k; ++i; ++j; @@ -1224,8 +1224,8 @@ static int intersect_rates(const int *source_rates, int source_len, return k; } -static int intel_supported_rates(struct intel_dp *intel_dp, - int *supported_rates) +static int intel_dp_common_rates(struct intel_dp *intel_dp, + int *common_rates) { struct drm_device *dev = intel_dp_to_dev(intel_dp); const int *source_rates, *sink_rates; @@ -1236,7 +1236,7 @@ static int intel_supported_rates(struct intel_dp *intel_dp, return intersect_rates(source_rates, source_len, sink_rates, sink_len, - supported_rates); + common_rates); } static void snprintf_int_array(char *str, size_t len, @@ -1259,8 +1259,8 @@ static void intel_dp_print_rates(struct intel_dp *intel_dp) { struct drm_device *dev = intel_dp_to_dev(intel_dp); const int *source_rates, *sink_rates; - int source_len, sink_len, supported_len; - int supported_rates[DP_MAX_SUPPORTED_RATES]; + int source_len, sink_len, common_len; + int common_rates[DP_MAX_SUPPORTED_RATES]; char str[128]; /* FIXME: too big for stack? */ if ((drm_debug & DRM_UT_KMS) == 0) @@ -1274,9 +1274,9 @@ static void intel_dp_print_rates(struct intel_dp *intel_dp) snprintf_int_array(str, sizeof(str), sink_rates, sink_len); DRM_DEBUG_KMS("sink rates: %s\n", str); - supported_len = intel_supported_rates(intel_dp, supported_rates); - snprintf_int_array(str, sizeof(str), supported_rates, supported_len); - DRM_DEBUG_KMS("supported rates: %s\n", str); + common_len = intel_dp_common_rates(intel_dp, common_rates); + snprintf_int_array(str, sizeof(str), common_rates, common_len); + DRM_DEBUG_KMS("common rates: %s\n", str); } static int rate_to_index(int find, const int *rates) @@ -1296,7 +1296,7 @@ intel_dp_max_link_rate(struct intel_dp *intel_dp) int rates[DP_MAX_SUPPORTED_RATES] = {}; int len; - len = intel_supported_rates(intel_dp, rates); + len = intel_dp_common_rates(intel_dp, rates); if (WARN_ON(len <= 0)) return 162000; @@ -1305,7 +1305,7 @@ intel_dp_max_link_rate(struct intel_dp *intel_dp) int intel_dp_rate_select(struct intel_dp *intel_dp, int rate) { - return rate_to_index(rate, intel_dp->supported_rates); + return rate_to_index(rate, intel_dp->sink_rates); } bool @@ -1327,15 +1327,15 @@ intel_dp_compute_config(struct intel_encoder *encoder, int max_clock; int bpp, mode_rate; int link_avail, link_clock; - int supported_rates[DP_MAX_SUPPORTED_RATES] = {}; - int supported_len; + int common_rates[DP_MAX_SUPPORTED_RATES] = {}; + int common_len; - supported_len = intel_supported_rates(intel_dp, supported_rates); + common_len = intel_dp_common_rates(intel_dp, common_rates); /* No common link rates between source and sink */ - WARN_ON(supported_len <= 0); + WARN_ON(common_len <= 0); - max_clock = supported_len - 1; + max_clock = common_len - 1; if (HAS_PCH_SPLIT(dev) && !HAS_DDI(dev) && port != PORT_A) pipe_config->has_pch_encoder = true; @@ -1360,7 +1360,7 @@ intel_dp_compute_config(struct intel_encoder *encoder, DRM_DEBUG_KMS("DP link computation with max lane count %i " "max bw %d pixel clock %iKHz\n", - max_lane_count, supported_rates[max_clock], + max_lane_count, common_rates[max_clock], adjusted_mode->crtc_clock); /* Walk through all bpp values. Luckily they're all nicely spaced with 2 @@ -1393,7 +1393,7 @@ intel_dp_compute_config(struct intel_encoder *encoder, lane_count <= max_lane_count; lane_count <<= 1) { - link_clock = supported_rates[clock]; + link_clock = common_rates[clock]; link_avail = intel_dp_max_data_rate(link_clock, lane_count); @@ -1424,18 +1424,18 @@ found: intel_dp->lane_count = lane_count; - if (intel_dp->num_supported_rates) { + if (intel_dp->num_sink_rates) { intel_dp->link_bw = 0; intel_dp->rate_select = - intel_dp_rate_select(intel_dp, supported_rates[clock]); + intel_dp_rate_select(intel_dp, common_rates[clock]); } else { intel_dp->link_bw = - drm_dp_link_rate_to_bw_code(supported_rates[clock]); + drm_dp_link_rate_to_bw_code(common_rates[clock]); intel_dp->rate_select = 0; } pipe_config->pipe_bpp = bpp; - pipe_config->port_clock = supported_rates[clock]; + pipe_config->port_clock = common_rates[clock]; DRM_DEBUG_KMS("DP link bw %02x lane count %d clock %d bpp %d\n", intel_dp->link_bw, intel_dp->lane_count, @@ -1458,7 +1458,7 @@ found: } if (IS_SKYLAKE(dev) && is_edp(intel_dp)) - skl_edp_set_pll_config(pipe_config, supported_rates[clock]); + skl_edp_set_pll_config(pipe_config, common_rates[clock]); else if (IS_HASWELL(dev) || IS_BROADWELL(dev)) hsw_dp_set_ddi_pll_sel(pipe_config, intel_dp->link_bw); else @@ -3545,7 +3545,7 @@ intel_dp_start_link_train(struct intel_dp *intel_dp) if (drm_dp_enhanced_frame_cap(intel_dp->dpcd)) link_config[1] |= DP_LANE_COUNT_ENHANCED_FRAME_EN; drm_dp_dpcd_write(&intel_dp->aux, DP_LINK_BW_SET, link_config, 2); - if (intel_dp->num_supported_rates) + if (intel_dp->num_sink_rates) drm_dp_dpcd_write(&intel_dp->aux, DP_LINK_RATE_SET, &intel_dp->rate_select, 1); @@ -3797,23 +3797,23 @@ intel_dp_get_dpcd(struct intel_dp *intel_dp) (intel_dp->dpcd[DP_EDP_CONFIGURATION_CAP] & DP_DPCD_DISPLAY_CONTROL_CAPABLE) && (intel_dp_dpcd_read_wake(&intel_dp->aux, DP_EDP_DPCD_REV, &rev, 1) == 1) && (rev >= 0x03)) { /* eDp v1.4 or higher */ - __le16 supported_rates[DP_MAX_SUPPORTED_RATES]; + __le16 sink_rates[DP_MAX_SUPPORTED_RATES]; int i; intel_dp_dpcd_read_wake(&intel_dp->aux, DP_SUPPORTED_LINK_RATES, - supported_rates, - sizeof(supported_rates)); + sink_rates, + sizeof(sink_rates)); - for (i = 0; i < ARRAY_SIZE(supported_rates); i++) { - int val = le16_to_cpu(supported_rates[i]); + for (i = 0; i < ARRAY_SIZE(sink_rates); i++) { + int val = le16_to_cpu(sink_rates[i]); if (val == 0) break; - intel_dp->supported_rates[i] = val * 200; + intel_dp->sink_rates[i] = val * 200; } - intel_dp->num_supported_rates = i; + intel_dp->num_sink_rates = i; } intel_dp_print_rates(intel_dp); diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c index 7e6f1259..971163e 100644 --- a/drivers/gpu/drm/i915/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/intel_dp_mst.c @@ -55,7 +55,7 @@ static bool intel_dp_mst_compute_config(struct intel_encoder *encoder, rate = intel_dp_max_link_rate(intel_dp); - if (intel_dp->num_supported_rates) { + if (intel_dp->num_sink_rates) { intel_dp->link_bw = 0; intel_dp->rate_select = intel_dp_rate_select(intel_dp, rate); } else { diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 4174198..a1baaa1 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -627,8 +627,9 @@ struct intel_dp { uint8_t dpcd[DP_RECEIVER_CAP_SIZE]; uint8_t psr_dpcd[EDP_PSR_RECEIVER_CAP_SIZE]; uint8_t downstream_ports[DP_MAX_DOWNSTREAM_PORTS]; - uint8_t num_supported_rates; - int supported_rates[DP_MAX_SUPPORTED_RATES]; + /* sink rates as reported by DP_SUPPORTED_LINK_RATES */ + uint8_t num_sink_rates; + int sink_rates[DP_MAX_SUPPORTED_RATES]; struct drm_dp_aux aux; uint8_t train_set[4]; int panel_power_up_delay; -- 2.7.4