From patchwork Wed Nov 1 21:20:10 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hsin-Yi Wang X-Patchwork-Id: 13443074 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 21A33C4332F for ; Wed, 1 Nov 2023 21:26:19 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 5A9C810E7B3; Wed, 1 Nov 2023 21:26:12 +0000 (UTC) Received: from mail-pj1-x1036.google.com (mail-pj1-x1036.google.com [IPv6:2607:f8b0:4864:20::1036]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4C02F10E7B2 for ; Wed, 1 Nov 2023 21:26:11 +0000 (UTC) Received: by mail-pj1-x1036.google.com with SMTP id 98e67ed59e1d1-2801d7f46f9so305755a91.3 for ; Wed, 01 Nov 2023 14:26:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1698873971; x=1699478771; darn=lists.freedesktop.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=4xwbTQnI0BFDkZi25AAHIqWZZ1NOZD3jNak99jsdxzc=; b=Rk1+dTQH8nEVuDdwpkf+TsaWWOjBZxypThILs+TQwvB3foIK3iXOMnyAxJqO0PCXvE WnxitYw/fkYw670k9pnNx4FBiOeennJX/8Ak/y3xH/fS1lNKteEjUFsdS76BGakyDyGg 66Svey8sJGtJ6fPRneASpaXNEIuxNBg2EKHcc= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1698873971; x=1699478771; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=4xwbTQnI0BFDkZi25AAHIqWZZ1NOZD3jNak99jsdxzc=; b=AdTnC4SjLKt+JHIXyyhaHRlFoWeyeAtmM9f89g9hWVNQ4bo0SgCzF7bA/bSiLY950h 9QPeqSRyqvMh8R67usNWVMuNvBKFRDjMVJMaIQ5N//HudUegF6Qri9zKVPmOOwTvwx9K lcxXaDKZBhEW55B8ydpJB7CLrfuzNJSlxFBdIArcTcgL68/keivQHTuTJ43Vxc5W/aFT ubNzEHOIBvu9tVupxDUmn6Pa/wLProAnNMYlyGzhgIOjzcXXYgaDA1QbP2QoIRItQUtB C/4EGGy3Ing5pBnX1gheSwA5uiyEd7wAnhcqfJ2YaERz6ryhvT/77U9BzVdufu4mz5bg h7cg== X-Gm-Message-State: AOJu0YxueOVWI69OCX6KYcZsKGiC3ojMgZGj5n2Qxch2B4hyyRfOVctS ulyqUlm7e2pbl4DW34pZ+KeV1Q== X-Google-Smtp-Source: AGHT+IG4lzVSFfrqsSnpcJVhqEfYSvDjiBzDAfyW/0AfJKI4nQzO2Rcu8SZNBZwV0H28Gj33QrQq0Q== X-Received: by 2002:a17:90a:6f42:b0:280:1b75:f077 with SMTP id d60-20020a17090a6f4200b002801b75f077mr11349044pjk.13.1698873970505; Wed, 01 Nov 2023 14:26:10 -0700 (PDT) Received: from hsinyi.sjc.corp.google.com ([2620:15c:9d:2:b410:473c:2b92:2e2e]) by smtp.gmail.com with ESMTPSA id ds21-20020a17090b08d500b00274262bcf8dsm1212976pjb.41.2023.11.01.14.26.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 01 Nov 2023 14:26:10 -0700 (PDT) From: Hsin-Yi Wang To: Douglas Anderson Subject: [PATCH 2/3] drm/panel-edp: Add override_edid_mode quirk for generic edp Date: Wed, 1 Nov 2023 14:20:10 -0700 Message-ID: <20231101212604.1636517-3-hsinyi@chromium.org> X-Mailer: git-send-email 2.42.0.869.gea05f2083d-goog In-Reply-To: <20231101212604.1636517-1-hsinyi@chromium.org> References: <20231101212604.1636517-1-hsinyi@chromium.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Neil Armstrong , linux-kernel@vger.kernel.org, Maxime Ripard , dri-devel@lists.freedesktop.org, Thomas Zimmermann , Jessica Zhang , Sam Ravnborg Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Generic edp gets mode from edid. However, some panels report incorrect mode in this way, resulting in glitches on panel. Introduce a new quirk additional_mode to the generic edid to pick a correct hardcoded mode. Signed-off-by: Hsin-Yi Wang Reviewed-by: Douglas Anderson --- drivers/gpu/drm/panel/panel-edp.c | 68 ++++++++++++++++++++++++++++--- 1 file changed, 63 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-edp.c b/drivers/gpu/drm/panel/panel-edp.c index 06ce3a73d740..0883ff312eba 100644 --- a/drivers/gpu/drm/panel/panel-edp.c +++ b/drivers/gpu/drm/panel/panel-edp.c @@ -203,6 +203,9 @@ struct edp_panel_entry { /** @name: Name of this panel (for printing to logs). */ const char *name; + + /** @override_edid_mode: Override the mode obtained by edid. */ + const struct drm_display_mode *override_edid_mode; }; struct panel_edp { @@ -301,6 +304,25 @@ static unsigned int panel_edp_get_display_modes(struct panel_edp *panel, return num; } +static int panel_edp_override_edid_mode(struct panel_edp *panel, + struct drm_connector *connector, + const struct drm_display_mode *override_mode) +{ + struct drm_display_mode *mode; + + mode = drm_mode_duplicate(connector->dev, override_mode); + if (mode) { + mode->type |= DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; + drm_mode_set_name(mode); + drm_mode_probed_add(connector, mode); + return 1; + } + + dev_err(panel->base.dev, "failed to add additional mode\n"); + + return 0; +} + static int panel_edp_get_non_edid_modes(struct panel_edp *panel, struct drm_connector *connector) { @@ -568,6 +590,9 @@ static int panel_edp_get_modes(struct drm_panel *panel, { struct panel_edp *p = to_panel_edp(panel); int num = 0; + bool has_override_edid_mode = p->detected_panel && + p->detected_panel != ERR_PTR(-EINVAL) && + p->detected_panel->override_edid_mode; /* probe EDID if a DDC bus is available */ if (p->ddc) { @@ -575,9 +600,18 @@ static int panel_edp_get_modes(struct drm_panel *panel, if (!p->edid) p->edid = drm_get_edid(connector, p->ddc); - - if (p->edid) - num += drm_add_edid_modes(connector, p->edid); + if (p->edid) { + if (has_override_edid_mode) { + /* + * override_edid_mode is specified. Use + * override_edid_mode instead of from edid. + */ + num += panel_edp_override_edid_mode(p, connector, + p->detected_panel->override_edid_mode); + } else { + num += drm_add_edid_modes(connector, p->edid); + } + } pm_runtime_mark_last_busy(panel->dev); pm_runtime_put_autosuspend(panel->dev); @@ -950,6 +984,19 @@ static const struct panel_desc auo_b101ean01 = { }, }; +static const struct drm_display_mode auo_b116xa3_mode = { + .clock = 70589, + .hdisplay = 1366, + .hsync_start = 1366 + 40, + .hsync_end = 1366 + 40 + 40, + .htotal = 1366 + 40 + 40 + 32, + .vdisplay = 768, + .vsync_start = 768 + 10, + .vsync_end = 768 + 10 + 12, + .vtotal = 768 + 10 + 12 + 6, + .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC, +}; + static const struct drm_display_mode auo_b116xak01_mode = { .clock = 69300, .hdisplay = 1366, @@ -1882,6 +1929,15 @@ static const struct panel_delay delay_200_150_e200 = { .delay = _delay \ } +#define EDP_PANEL_ENTRY2(vend_chr_0, vend_chr_1, vend_chr_2, product_id, _delay, _name, _mode) \ +{ \ + .name = _name, \ + .panel_id = drm_edid_encode_panel_id(vend_chr_0, vend_chr_1, vend_chr_2, \ + product_id), \ + .delay = _delay, \ + .override_edid_mode = _mode \ +} + /* * This table is used to figure out power sequencing delays for panels that * are detected by EDID. Entries here may point to entries in the @@ -1899,9 +1955,11 @@ static const struct edp_panel_entry edp_panels[] = { EDP_PANEL_ENTRY('A', 'U', 'O', 0x239b, &delay_200_500_e50, "B116XAN06.1"), EDP_PANEL_ENTRY('A', 'U', 'O', 0x255c, &delay_200_500_e50, "B116XTN02.5"), EDP_PANEL_ENTRY('A', 'U', 'O', 0x403d, &delay_200_500_e50, "B140HAN04.0"), - EDP_PANEL_ENTRY('A', 'U', 'O', 0x405c, &delay_200_500_e50, "B116XAK01.0"), + EDP_PANEL_ENTRY2('A', 'U', 'O', 0x405c, &delay_200_500_e50, "B116XAK01.0", + &auo_b116xa3_mode), EDP_PANEL_ENTRY('A', 'U', 'O', 0x582d, &delay_200_500_e50, "B133UAN01.0"), - EDP_PANEL_ENTRY('A', 'U', 'O', 0x615c, &delay_200_500_e50, "B116XAN06.1"), + EDP_PANEL_ENTRY2('A', 'U', 'O', 0x615c, &delay_200_500_e50, "B116XAN06.1", + &auo_b116xa3_mode), EDP_PANEL_ENTRY('A', 'U', 'O', 0x635c, &delay_200_500_e50, "B116XAN06.3"), EDP_PANEL_ENTRY('A', 'U', 'O', 0x639c, &delay_200_500_e50, "B140HAK02.7"), EDP_PANEL_ENTRY('A', 'U', 'O', 0x8594, &delay_200_500_e50, "B133UAN01.0"),