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h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=a//86aP8s3QmqoJfeZedJDtPEVErdNHBv0NRJKk6ifdy4IT3skD6NdGxknmhb03C5 oMe6tQ4QPZXpys7IK28bPMFUsWatvsqyMAu/uW6DZdcBjXWbCNYh4q7szo0Kv8TglO ooUOYOmvOdYa+XzG9hb8b9H/bKEF0966+5bT/YfJxJV4Saur12Ph1C3EJH9u1Jamgr Mfgw+I1VBVqTvtjS7QmMx1WpibKtI+u3TGHuWiG1Q5DPhv6Uenwe/m2qyb3zjzDpwf P6o92qM2OLVEhsGTs4jfsm/3+mI2cp0gbvL+FyzOcdPbslPK2Xkw/+kauZB7wDPvOG mONZx+qLU8qZw== Received: from localhost (unknown [100.64.0.241]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange secp256r1 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: cristicc) by bali.collaboradmins.com (Postfix) with ESMTPSA id CDCEA17E1064; Thu, 23 Jul 2026 03:35:25 +0200 (CEST) From: Cristian Ciocaltea Date: Thu, 23 Jul 2026 04:35:23 +0300 Subject: [PATCH v9 34/61] drm/vc4: hdmi: Use common TMDS char rate constants Precedence: bulk X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20260723-dw-hdmi-qp-scramb-v9-34-4fb12ea22ac9@collabora.com> References: <20260723-dw-hdmi-qp-scramb-v9-0-4fb12ea22ac9@collabora.com> In-Reply-To: <20260723-dw-hdmi-qp-scramb-v9-0-4fb12ea22ac9@collabora.com> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Luca Ceresoli , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Chen-Yu Tsai , Samuel Holland , Dave Stevenson , =?utf-8?q?Ma=C3=ADra_Canal?= , Raspberry Pi Kernel Maintenance , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Andy Yan , Algea Cao , Daniel Stone , Liu Ying , Phong LE Cc: kernel@collabora.com, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-rockchip@lists.infradead.org X-Mailer: b4 0.15.2 X-MORS-Enabled: yes X-MORS-DOMAIN: patchwork.local X-MORS-HOSTING: hosting172546 X-MORS-USER: hosting172546 X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= Replace HDMI_14_MAX_TMDS_CLK defined locally with HDMI_1_3_TMDS_CHAR_RATE_MAX_HZ provided by linux/hdmi.h. Note this incorrectly referenced HDMI 1.4, as the 340 MHz maximum TMDS character rate was actually introduced in HDMI 1.3. Similarly, use HDMI_2_0_TMDS_CHAR_RATE_MAX_HZ instead of the 600000000 magic number. Reviewed-by: Dave Stevenson Acked-by: Maxime Ripard Signed-off-by: Cristian Ciocaltea --- drivers/gpu/drm/vc4/vc4_hdmi.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index 7f613f912368..9ce56eca775c 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -45,6 +45,7 @@ #include #include #include +#include #include #include #include @@ -113,8 +114,6 @@ #define HSM_MIN_CLOCK_FREQ 120000000 #define CEC_CLOCK_FREQ 40000 -#define HDMI_14_MAX_TMDS_CLK (340 * 1000 * 1000) - static bool vc4_hdmi_supports_scrambling(struct vc4_hdmi *vc4_hdmi) { struct drm_display_info *display = &vc4_hdmi->connector.display_info; @@ -137,7 +136,7 @@ static bool vc4_hdmi_mode_needs_scrambling(const struct drm_display_mode *mode, { unsigned long long clock = drm_hdmi_compute_mode_clock(mode, bpc, fmt); - return clock > HDMI_14_MAX_TMDS_CLK; + return clock > HDMI_1_3_TMDS_CHAR_RATE_MAX_HZ; } static int vc4_hdmi_debugfs_regs(struct seq_file *m, void *unused) @@ -1727,7 +1726,7 @@ vc4_hdmi_connector_clock_valid(const struct drm_connector *connector, if (clock > vc4_hdmi->variant->max_pixel_clock) return MODE_CLOCK_HIGH; - if (!vc4->hvs->vc5_hdmi_enable_hdmi_20 && clock > HDMI_14_MAX_TMDS_CLK) + if (!vc4->hvs->vc5_hdmi_enable_hdmi_20 && clock > HDMI_1_3_TMDS_CHAR_RATE_MAX_HZ) return MODE_CLOCK_HIGH; /* 4096x2160@60 is not reliable without overclocking core */ @@ -3253,7 +3252,7 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data) * vc4_hdmi_disable_scrambling() will thus run at boot, make * sure it's disabled, and avoid any inconsistency. */ - if (variant->max_pixel_clock > HDMI_14_MAX_TMDS_CLK) + if (variant->max_pixel_clock > HDMI_1_3_TMDS_CHAR_RATE_MAX_HZ) vc4_hdmi->scdc_enabled = true; ret = variant->init_resources(drm, vc4_hdmi); @@ -3383,7 +3382,7 @@ static const struct vc4_hdmi_variant bcm2711_hdmi0_variant = { .encoder_type = VC4_ENCODER_TYPE_HDMI0, .debugfs_name = "hdmi0_regs", .card_name = "vc4-hdmi-0", - .max_pixel_clock = 600000000, + .max_pixel_clock = HDMI_2_0_TMDS_CHAR_RATE_MAX_HZ, .registers = vc5_hdmi_hdmi0_fields, .num_registers = ARRAY_SIZE(vc5_hdmi_hdmi0_fields), .phy_lane_mapping = { @@ -3412,7 +3411,7 @@ static const struct vc4_hdmi_variant bcm2711_hdmi1_variant = { .encoder_type = VC4_ENCODER_TYPE_HDMI1, .debugfs_name = "hdmi1_regs", .card_name = "vc4-hdmi-1", - .max_pixel_clock = HDMI_14_MAX_TMDS_CLK, + .max_pixel_clock = HDMI_1_3_TMDS_CHAR_RATE_MAX_HZ, .registers = vc5_hdmi_hdmi1_fields, .num_registers = ARRAY_SIZE(vc5_hdmi_hdmi1_fields), .phy_lane_mapping = { @@ -3441,7 +3440,7 @@ static const struct vc4_hdmi_variant bcm2712_hdmi0_variant = { .encoder_type = VC4_ENCODER_TYPE_HDMI0, .debugfs_name = "hdmi0_regs", .card_name = "vc4-hdmi-0", - .max_pixel_clock = 600000000, + .max_pixel_clock = HDMI_2_0_TMDS_CHAR_RATE_MAX_HZ, .registers = vc6_hdmi_hdmi0_fields, .num_registers = ARRAY_SIZE(vc6_hdmi_hdmi0_fields), .phy_lane_mapping = { @@ -3468,7 +3467,7 @@ static const struct vc4_hdmi_variant bcm2712_hdmi1_variant = { .encoder_type = VC4_ENCODER_TYPE_HDMI1, .debugfs_name = "hdmi1_regs", .card_name = "vc4-hdmi-1", - .max_pixel_clock = 600000000, + .max_pixel_clock = HDMI_2_0_TMDS_CHAR_RATE_MAX_HZ, .registers = vc6_hdmi_hdmi1_fields, .num_registers = ARRAY_SIZE(vc6_hdmi_hdmi1_fields), .phy_lane_mapping = {