From nobody Mon Feb 9 04:14:34 2026 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D68E4C7EE43 for ; Tue, 13 Jun 2023 07:07:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240383AbjFMHHO (ORCPT ); Tue, 13 Jun 2023 03:07:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51942 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239925AbjFMHGw (ORCPT ); Tue, 13 Jun 2023 03:06:52 -0400 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.153.233]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8B74E1FEF; Tue, 13 Jun 2023 00:06:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1686639974; x=1718175974; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=T7Y/2YDTllTUUHSl2rDvQC/p9LxvbkgfdDNcPx1ZDwk=; b=W56NGDFzdQUEk2V7l+W7EBL6Z095Z1fzJXCzsojLZONmVpAAOkcrFsEv eDG0kelD+86BUgflzPxqDxAzG71tAULB35u2KrNn7Jz4YNWTPfVNCVT9d 61gwNYGRyD2yoSQxDVKJNUjlM2IjzwhFB8oBuHD6Z9vXkUlG3nmfBm34D 8yVLUnhOtyW/wPLLvIIFQQVvI2lHTaw+W4dIxFNAX3VuuriP8OvN8cvD+ sZHJaoOTOHdBE0dnBJ3efncdBzwTRpU6uESyB6mz05XazwtgcY84pTD4E UB7LTy4G6KrBnDnnVSQZGnHvP05oyYZBrz6f0ihZuMU0s0wpWnc6i/lts Q==; X-IronPort-AV: E=Sophos;i="6.00,238,1681196400"; d="scan'208";a="217554081" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa3.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 13 Jun 2023 00:06:11 -0700 Received: from chn-vm-ex02.mchp-main.com (10.10.85.144) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.21; Tue, 13 Jun 2023 00:06:06 -0700 Received: from che-lt-i67131.microchip.com (10.10.115.15) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server id 15.1.2507.21 via Frontend Transport; Tue, 13 Jun 2023 00:05:57 -0700 From: Manikandan Muralidharan To: , , , , , , , , , , , , , , CC: , , , , , , , Manikandan , Durai Manickam KR Subject: [PATCH 7/9] drm: atmel-hlcdc: add DPI mode support for XLCDC Date: Tue, 13 Jun 2023 12:34:24 +0530 Message-ID: <20230613070426.467389-8-manikandan.m@microchip.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230613070426.467389-1-manikandan.m@microchip.com> References: <20230613070426.467389-1-manikandan.m@microchip.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Add support for Display Pixel Interface (DPI) Compatible Mode support in atmel-hlcdc driver for XLCDC IP along with legacy pixel mapping.DPI mode BIT is configured in LCDC_CFG5 register. Signed-off-by: Manikandan Muralidharan [durai.manickamkr@microchip.com: update DPI mode bit using is_xlcdc flag] Signed-off-by: Durai Manickam KR --- .../gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c | 22 ++++++++++++++++--- 1 file changed, 19 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c b/drivers/gpu/d= rm/atmel-hlcdc/atmel_hlcdc_crtc.c index 7c9cf7c0c75d..abdece982507 100644 --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c @@ -30,10 +30,12 @@ * * @base: base CRTC state * @output_mode: RGBXXX output mode + * @dpi: output DPI mode */ struct atmel_hlcdc_crtc_state { struct drm_crtc_state base; unsigned int output_mode; + bool dpi; }; =20 static inline struct atmel_hlcdc_crtc_state * @@ -138,6 +140,8 @@ static void atmel_hlcdc_crtc_mode_set_nofb(struct drm_c= rtc *c) =20 state =3D drm_crtc_state_to_atmel_hlcdc_crtc_state(c->state); cfg =3D state->output_mode << 8; + if (crtc->dc->is_xlcdc) + cfg |=3D state->dpi << 11; =20 if (!crtc->dc->is_xlcdc && (adj->flags & DRM_MODE_FLAG_NVSYNC)) cfg |=3D ATMEL_HLCDC_VSPOL; @@ -150,7 +154,9 @@ static void atmel_hlcdc_crtc_mode_set_nofb(struct drm_c= rtc *c) ATMEL_HLCDC_VSPDLYS | ATMEL_HLCDC_VSPDLYE | ATMEL_HLCDC_DISPPOL | ATMEL_HLCDC_DISPDLY | ATMEL_HLCDC_VSPSU | ATMEL_HLCDC_VSPHO | - ATMEL_HLCDC_GUARDTIME_MASK | ATMEL_HLCDC_MODE_MASK, + ATMEL_HLCDC_GUARDTIME_MASK | + (crtc->dc->is_xlcdc ? ATMEL_XLCDC_MODE_MASK | + ATMEL_XLCDC_DPI : ATMEL_HLCDC_MODE_MASK), cfg); =20 clk_disable_unprepare(crtc->dc->hlcdc->sys_clk); @@ -344,7 +350,15 @@ static int atmel_hlcdc_crtc_select_output_mode(struct = drm_crtc_state *state) =20 hstate =3D drm_crtc_state_to_atmel_hlcdc_crtc_state(state); hstate->output_mode =3D fls(output_fmts) - 1; - + if (crtc->dc->is_xlcdc) { + /* check if MIPI DPI bit needs to be set */ + if (fls(output_fmts) > 3) { + hstate->output_mode -=3D 4; + hstate->dpi =3D true; + } else { + hstate->dpi =3D false; + } + } return 0; } =20 @@ -448,7 +462,7 @@ static struct drm_crtc_state * atmel_hlcdc_crtc_duplicate_state(struct drm_crtc *crtc) { struct atmel_hlcdc_crtc_state *state, *cur; - + struct atmel_hlcdc_crtc *c =3D drm_crtc_to_atmel_hlcdc_crtc(crtc); if (WARN_ON(!crtc->state)) return NULL; =20 @@ -459,6 +473,8 @@ atmel_hlcdc_crtc_duplicate_state(struct drm_crtc *crtc) =20 cur =3D drm_crtc_state_to_atmel_hlcdc_crtc_state(crtc->state); state->output_mode =3D cur->output_mode; + if (c->dc->is_xlcdc) + state->dpi =3D cur->dpi; =20 return &state->base; } --=20 2.25.1