From patchwork Thu Nov 21 09:23:06 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manikandan Muralidharan X-Patchwork-Id: 13881796 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 3D2C4D75BDC for ; Thu, 21 Nov 2024 09:23:08 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 948F410E216; Thu, 21 Nov 2024 09:23:07 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=microchip.com header.i=@microchip.com header.b="fJUgGlv5"; dkim-atps=neutral Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.153.233]) by gabe.freedesktop.org (Postfix) with ESMTPS id 32F3F10E216 for ; 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21 Nov 2024 02:23:05 -0700 Received: from chn-vm-ex02.mchp-main.com (10.10.87.72) by chn-vm-ex02.mchp-main.com (10.10.87.72) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Thu, 21 Nov 2024 02:23:01 -0700 Received: from che-lt-i67131.microchip.com (10.10.85.11) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server id 15.1.2507.35 via Frontend Transport; Thu, 21 Nov 2024 02:22:56 -0700 From: Manikandan Muralidharan To: , , , , , , , , , , , , , CC: , Dharma Balasubiramani Subject: [PATCH 1/3] drm: atmel-hlcdc: add support for LVDS encoder type Date: Thu, 21 Nov 2024 14:53:06 +0530 Message-ID: <20241121092308.130328-1-manikandan.m@microchip.com> X-Mailer: git-send-email 2.25.1 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: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Dharma Balasubiramani Add support for encoder type "DRM_MODE_ENCODER_LVDS" with the following bus formats: - RGB888_1X7X4_SPWG - RGB888_1X7X4_JEIDA - RGB666_1X7X3_SPWG - RGB666_1X18 Signed-off-by: Dharma Balasubiramani [manikandan.m@microchip.com: move modifications inside the atmel_xlcdc_connector_output_lvds fn] Signed-off-by: Manikandan Muralidharan --- .../gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c | 38 +++++++++++++++++++ 1 file changed, 38 insertions(+) diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c index 0f7ffb3ced20..0e709047369a 100644 --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c @@ -356,6 +356,42 @@ 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; @@ -374,6 +410,8 @@ static int atmel_hlcdc_connector_output_mode(struct drm_connector_state *state) */ if (encoder->encoder_type == DRM_MODE_ENCODER_DSI) return atmel_xlcdc_connector_output_dsi(encoder, info); + else 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: