From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.153.233]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A0D993939B6 for ; Tue, 19 May 2026 09:02:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=68.232.153.233 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779181360; cv=none; b=PbDRnuInYUAaNKd7z7z2016IN/DRxIFfgLF4gvph4dK30pIVGcRvdk6ICRwekgFFVRPxPesVbqawX13vXrneQHdHQasSG4HFWI5Js/vyLVR7BpOY0yzXjej6/M7hxnYvYO7/esb86jz+vzKhwn+XwZXSwtwp0qy9VCSjmdQ/elM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779181360; c=relaxed/simple; bh=P/zUb7eaSuLgJ0Ygkd5vRer8oBCsuAGF59nPqYYO8LU=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=DEWKqRNesh1pM9PkTk4KATnYruwVafRpd/rDtKSuznjADxWyGINloaGyvkawdIjs+M8NI2CfZ4ic/PKo/pjeHZIYva8xAXHaCLPB3+g6KF9xxzVr5fN2i180Cn4YWOWqplBrXWgq6kaaSlLV9gWA01wmsKdaRlNUNlmNjPC+wXM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=microchip.com; spf=pass smtp.mailfrom=microchip.com; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b=R9cEA1OO; arc=none smtp.client-ip=68.232.153.233 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=microchip.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=microchip.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b="R9cEA1OO" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1779181359; x=1810717359; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=P/zUb7eaSuLgJ0Ygkd5vRer8oBCsuAGF59nPqYYO8LU=; b=R9cEA1OOZxh25OIfk01zT8MuRoGTSSONDKwbgUA48J5RRCmWY4NrvnbO pvzBQcEzZVCxMmB+97ETLG3vyYaO4jfRqlyPIEznqry1f37vI72uYKgpS 9/8ZoKhFkWS8V/nm/unM0vF2Dju/RJ+OvgWa1YVnOGi1r7X9VR/eA1va6 RhpDDmcBRdx88TEXLabBXkEnGuZKtLlOxQmU7P7kSKtdIpBlbd8W2KSbu T/SwVId3yGlIldCZ4+8nmmbidQ0tHM7KcJ0tLF5jWwoWVQn9y+QU6cWJC bkiGJb4i5GqvCOEqR0287LcuWs0KXFeXaW4YY9UadhGErj9AXgRdcP5RV Q==; X-CSE-ConnectionGUID: hIctYe0PSYiry4BydksWDA== X-CSE-MsgGUID: bHtQrq2rRLSqU9npjMTmkA== X-IronPort-AV: E=Sophos;i="6.23,243,1770620400"; d="scan'208";a="66488501" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa1.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 May 2026 02:02:38 -0700 Received: from chn-vm-ex04.mchp-main.com (10.10.87.151) by chn-vm-ex3.mchp-main.com (10.10.87.32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.2.2562.37; Tue, 19 May 2026 02:02:38 -0700 Received: from che-lt-i67131.microchip.com (10.10.85.11) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server id 15.1.2507.58 via Frontend Transport; Tue, 19 May 2026 02:02:33 -0700 From: Manikandan Muralidharan To: , , , , , , , , , , , CC: Subject: [PATCH 8/8] drm: atmel-hlcdc: add LVDS output mode support Date: Tue, 19 May 2026 14:31:35 +0530 Message-ID: <20260519090135.1188405-9-manikandan.m@microchip.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20260519090135.1188405-1-manikandan.m@microchip.com> References: <20260519090135.1188405-1-manikandan.m@microchip.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain Introduce atmel_xlcdc_connector_output_lvds() to map LVDS bus formats to the appropriate output mode, and wire it into atmel_hlcdc_connector_output_mode() for LVDS encoder types. Signed-off-by: Manikandan Muralidharan --- .../gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c | 44 +++++++++++++++++-- 1 file changed, 41 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c index 73a8650bc9b7..9f46c368835e 100644 --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c @@ -407,6 +407,42 @@ static int atmel_xlcdc_connector_output_dsi(struct drm_encoder *encoder, return supported_fmts; } +static int atmel_xlcdc_connector_output_lvds(struct drm_encoder *encoder, + struct drm_display_info *info) +{ + int j; + unsigned int supported_fmts = 0; + + switch (atmel_hlcdc_encoder_get_bus_fmt(encoder)) { + case 0: + break; + case MEDIA_BUS_FMT_RGB666_1X7X3_SPWG: + case MEDIA_BUS_FMT_RGB666_1X18: + return ATMEL_HLCDC_RGB666_OUTPUT; + case MEDIA_BUS_FMT_RGB888_1X7X4_SPWG: + case MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA: + return ATMEL_HLCDC_RGB888_OUTPUT; + default: + return -EINVAL; + } + + for (j = 0; j < info->num_bus_formats; j++) { + switch (info->bus_formats[j]) { + case MEDIA_BUS_FMT_RGB666_1X7X3_SPWG: + case MEDIA_BUS_FMT_RGB666_1X18: + supported_fmts |= ATMEL_HLCDC_RGB666_OUTPUT; + break; + case MEDIA_BUS_FMT_RGB888_1X7X4_SPWG: + case MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA: + supported_fmts |= ATMEL_HLCDC_RGB888_OUTPUT; + break; + default: + break; + } + } + return supported_fmts; +} + static int atmel_hlcdc_connector_output_mode(struct drm_connector_state *state) { struct drm_connector *connector = state->connector; @@ -419,12 +455,14 @@ static int atmel_hlcdc_connector_output_mode(struct drm_connector_state *state) if (!encoder) encoder = connector->encoder; /* - * atmel-hlcdc to support DSI formats with DSI video pipeline - * when DRM_MODE_ENCODER_DSI type is set by - * connector driver component. + * Select the output format based on the encoder type. + * DSI and LVDS encoders have dedicated format handlers, + * while other encoder types fall through to the generic path */ if (encoder->encoder_type == DRM_MODE_ENCODER_DSI) return atmel_xlcdc_connector_output_dsi(encoder, info); + if (encoder->encoder_type == DRM_MODE_ENCODER_LVDS) + return atmel_xlcdc_connector_output_lvds(encoder, info); switch (atmel_hlcdc_encoder_get_bus_fmt(encoder)) { case 0: -- 2.25.1