From 621514aa4140543dec5d533eb636d4b1484000b0 Mon Sep 17 00:00:00 2001 From: Melissa Wen Date: Tue, 31 Mar 2020 07:59:20 -0300 Subject: [PATCH] drm/amd/display: codestyle cleanup on dc_link file until detect_dp func Removes codestyle issues on the file dc_link until detect_dp func as suggested by checkpatch.pl. Types covered: CHECK: Please don't use multiple blank lines CHECK: Comparison to NULL could be written ERROR: space required before the open parenthesis '(' CHECK: Alignment should match open parenthesis CHECK: Lines should not end with a '(' WARNING: please, no space before tabs WARNING: Comparisons should place the constant on the right side of the test WARNING: braces {} are not necessary for single statement blocks CHECK: Please don't use multiple blank lines Signed-off-by: Melissa Wen Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/core/dc_link.c | 109 ++++++++---------- 1 file changed, 49 insertions(+), 60 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c index f580b533db5f..0b303d17e543 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -49,7 +49,6 @@ #define DC_LOGGER_INIT(logger) - #define LINK_INFO(...) \ DC_LOG_HW_HOTPLUG( \ __VA_ARGS__) @@ -79,7 +78,7 @@ static void dc_link_destruct(struct dc_link *link) { int i; - if (link->hpd_gpio != NULL) { + if (link->hpd_gpio) { dal_gpio_destroy_irq(&link->hpd_gpio); link->hpd_gpio = NULL; } @@ -87,7 +86,7 @@ static void dc_link_destruct(struct dc_link *link) if (link->ddc) dal_ddc_service_destroy(&link->ddc); - if(link->link_enc) + if (link->link_enc) link->link_enc->funcs->destroy(&link->link_enc); if (link->local_sink) @@ -98,8 +97,8 @@ static void dc_link_destruct(struct dc_link *link) } struct gpio *get_hpd_gpio(struct dc_bios *dcb, - struct graphics_object_id link_id, - struct gpio_service *gpio_service) + struct graphics_object_id link_id, + struct gpio_service *gpio_service) { enum bp_result bp_result; struct graphics_object_hpd_info hpd_info; @@ -116,10 +115,9 @@ struct gpio *get_hpd_gpio(struct dc_bios *dcb, return NULL; } - return dal_gpio_service_create_irq( - gpio_service, - pin_info.offset, - pin_info.mask); + return dal_gpio_service_create_irq(gpio_service, + pin_info.offset, + pin_info.mask); } /* @@ -134,13 +132,10 @@ struct gpio *get_hpd_gpio(struct dc_bios *dcb, * @return * true on success, false otherwise */ -static bool program_hpd_filter( - const struct dc_link *link) +static bool program_hpd_filter(const struct dc_link *link) { bool result = false; - struct gpio *hpd; - int delay_on_connect_in_ms = 0; int delay_on_disconnect_in_ms = 0; @@ -159,10 +154,10 @@ static bool program_hpd_filter( case SIGNAL_TYPE_DISPLAY_PORT_MST: /* Program hpd filter to allow DP signal to settle */ /* 500: not able to detect MST <-> SST switch as HPD is low for - * only 100ms on DELL U2413 - * 0: some passive dongle still show aux mode instead of i2c - * 20-50:not enough to hide bouncing HPD with passive dongle. - * also see intermittent i2c read issues. + * only 100ms on DELL U2413 + * 0: some passive dongle still show aux mode instead of i2c + * 20-50: not enough to hide bouncing HPD with passive dongle. + * also see intermittent i2c read issues. */ delay_on_connect_in_ms = 80; delay_on_disconnect_in_ms = 0; @@ -175,7 +170,8 @@ static bool program_hpd_filter( } /* Obtain HPD handle */ - hpd = get_hpd_gpio(link->ctx->dc_bios, link->link_id, link->ctx->gpio_service); + hpd = get_hpd_gpio(link->ctx->dc_bios, link->link_id, + link->ctx->gpio_service); if (!hpd) return result; @@ -226,8 +222,9 @@ bool dc_link_detect_sink(struct dc_link *link, enum dc_connection_type *type) } /* todo: may need to lock gpio access */ - hpd_pin = get_hpd_gpio(link->ctx->dc_bios, link->link_id, link->ctx->gpio_service); - if (hpd_pin == NULL) + hpd_pin = get_hpd_gpio(link->ctx->dc_bios, link->link_id, + link->ctx->gpio_service); + if (!hpd_pin) goto hpd_gpio_failure; dal_gpio_open(hpd_pin, GPIO_MODE_INTERRUPT); @@ -248,8 +245,7 @@ hpd_gpio_failure: return false; } -static enum ddc_transaction_type get_ddc_transaction_type( - enum signal_type sink_signal) +static enum ddc_transaction_type get_ddc_transaction_type(enum signal_type sink_signal) { enum ddc_transaction_type transaction_type = DDC_TRANSACTION_TYPE_NONE; @@ -282,9 +278,8 @@ static enum ddc_transaction_type get_ddc_transaction_type( return transaction_type; } -static enum signal_type get_basic_signal_type( - struct graphics_object_id encoder, - struct graphics_object_id downstream) +static enum signal_type get_basic_signal_type(struct graphics_object_id encoder, + struct graphics_object_id downstream) { if (downstream.type == OBJECT_TYPE_CONNECTOR) { switch (downstream.id) { @@ -373,8 +368,8 @@ bool dc_link_is_dp_sink_present(struct dc_link *link) * which indicates we need additional delay */ - if (GPIO_RESULT_OK != dal_ddc_open( - ddc, GPIO_MODE_INPUT, GPIO_DDC_CONFIG_TYPE_MODE_I2C)) { + if (dal_ddc_open(ddc, GPIO_MODE_INPUT, + GPIO_DDC_CONFIG_TYPE_MODE_I2C) != GPIO_RESULT_OK) { dal_ddc_close(ddc); return present; @@ -408,12 +403,11 @@ bool dc_link_is_dp_sink_present(struct dc_link *link) * @brief * Detect output sink type */ -static enum signal_type link_detect_sink( - struct dc_link *link, - enum dc_detect_reason reason) +static enum signal_type link_detect_sink(struct dc_link *link, + enum dc_detect_reason reason) { - enum signal_type result = get_basic_signal_type( - link->link_enc->id, link->link_id); + enum signal_type result = get_basic_signal_type(link->link_enc->id, + link->link_id); /* Internal digital encoder will detect only dongles * that require digital signal @@ -428,17 +422,16 @@ static enum signal_type link_detect_sink( */ /* PCIE detects the actual connector on add-on board */ - - if (link->link_id.id == CONNECTOR_ID_PCIE) { + if (link->link_id.id == CONNECTOR_ID_PCIE) /* ZAZTODO implement PCIE add-on card detection */ - } switch (link->link_id.id) { case CONNECTOR_ID_HDMI_TYPE_A: { /* check audio support: * if native HDMI is not supported, switch to DVI */ - struct audio_support *aud_support = &link->dc->res_pool->audio_support; + struct audio_support *aud_support = + &link->dc->res_pool->audio_support; if (!aud_support->hdmi_audio_native) if (link->link_id.id == CONNECTOR_ID_HDMI_TYPE_A) @@ -466,16 +459,15 @@ static enum signal_type link_detect_sink( return result; } -static enum signal_type decide_signal_from_strap_and_dongle_type( - enum display_dongle_type dongle_type, - struct audio_support *audio_support) +static enum signal_type decide_signal_from_strap_and_dongle_type(enum display_dongle_type dongle_type, + struct audio_support *audio_support) { enum signal_type signal = SIGNAL_TYPE_NONE; switch (dongle_type) { case DISPLAY_DONGLE_DP_HDMI_DONGLE: if (audio_support->hdmi_audio_on_dongle) - signal = SIGNAL_TYPE_HDMI_TYPE_A; + signal = SIGNAL_TYPE_HDMI_TYPE_A; else signal = SIGNAL_TYPE_DVI_SINGLE_LINK; break; @@ -496,16 +488,14 @@ static enum signal_type decide_signal_from_strap_and_dongle_type( return signal; } -static enum signal_type dp_passive_dongle_detection( - struct ddc_service *ddc, - struct display_sink_capability *sink_cap, - struct audio_support *audio_support) +static enum signal_type dp_passive_dongle_detection(struct ddc_service *ddc, + struct display_sink_capability *sink_cap, + struct audio_support *audio_support) { - dal_ddc_service_i2c_query_dp_dual_mode_adaptor( - ddc, sink_cap); - return decide_signal_from_strap_and_dongle_type( - sink_cap->dongle_type, - audio_support); + dal_ddc_service_i2c_query_dp_dual_mode_adaptor(ddc, sink_cap); + + return decide_signal_from_strap_and_dongle_type(sink_cap->dongle_type, + audio_support); } static void link_disconnect_sink(struct dc_link *link) @@ -524,7 +514,6 @@ static void link_disconnect_remap(struct dc_sink *prev_sink, struct dc_link *lin link->local_sink = prev_sink; } - static void read_current_link_settings_on_detect(struct dc_link *link) { union lane_count_set lane_count_set = { {0} }; @@ -537,18 +526,18 @@ static void read_current_link_settings_on_detect(struct dc_link *link) // Read DPCD 00101h to find out the number of lanes currently set for (i = 0; i < read_dpcd_retry_cnt; i++) { - status = core_link_read_dpcd( - link, - DP_LANE_COUNT_SET, - &lane_count_set.raw, - sizeof(lane_count_set)); + status = core_link_read_dpcd(link, + DP_LANE_COUNT_SET, + &lane_count_set.raw, + sizeof(lane_count_set)); /* First DPCD read after VDD ON can fail if the particular board * does not have HPD pin wired correctly. So if DPCD read fails, * which it should never happen, retry a few times. Target worst * case scenario of 80 ms. */ if (status == DC_OK) { - link->cur_link_settings.lane_count = lane_count_set.bits.LANE_COUNT_SET; + link->cur_link_settings.lane_count = + lane_count_set.bits.LANE_COUNT_SET; break; } @@ -557,7 +546,7 @@ static void read_current_link_settings_on_detect(struct dc_link *link) // Read DPCD 00100h to find if standard link rates are set core_link_read_dpcd(link, DP_LINK_BW_SET, - &link_bw_set, sizeof(link_bw_set)); + &link_bw_set, sizeof(link_bw_set)); if (link_bw_set == 0) { if (link->connector_signal == SIGNAL_TYPE_EDP) { @@ -565,12 +554,12 @@ static void read_current_link_settings_on_detect(struct dc_link *link) * Read DPCD 00115h to find the edp link rate set used */ core_link_read_dpcd(link, DP_LINK_RATE_SET, - &link_rate_set, sizeof(link_rate_set)); + &link_rate_set, sizeof(link_rate_set)); // edp_supported_link_rates_count = 0 for DP if (link_rate_set < link->dpcd_caps.edp_supported_link_rates_count) { link->cur_link_settings.link_rate = - link->dpcd_caps.edp_supported_link_rates[link_rate_set]; + link->dpcd_caps.edp_supported_link_rates[link_rate_set]; link->cur_link_settings.link_rate_set = link_rate_set; link->cur_link_settings.use_link_rate_set = true; } @@ -584,7 +573,7 @@ static void read_current_link_settings_on_detect(struct dc_link *link) } // Read DPCD 00003h to find the max down spread. core_link_read_dpcd(link, DP_MAX_DOWNSPREAD, - &max_down_spread.raw, sizeof(max_down_spread)); + &max_down_spread.raw, sizeof(max_down_spread)); link->cur_link_settings.link_spread = max_down_spread.bits.MAX_DOWN_SPREAD ? LINK_SPREAD_05_DOWNSPREAD_30KHZ : LINK_SPREAD_DISABLED; -- 2.25.1