From nobody Mon Nov 11 11:24:26 2024 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 377D7C43334 for ; Mon, 13 Jun 2022 06:49:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238439AbiFMGt4 (ORCPT ); Mon, 13 Jun 2022 02:49:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59188 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237720AbiFMGsz (ORCPT ); Mon, 13 Jun 2022 02:48:55 -0400 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9ED931581B; Sun, 12 Jun 2022 23:48:53 -0700 (PDT) X-UUID: 42f531b43e3a4355b674f5f6bbd5cdef-20220613 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.5,REQID:353ba3d0-a0e9-4b12-ac16-fdbf83731228,OB:0,LO B:0,IP:0,URL:0,TC:0,Content:-5,EDM:0,RT:0,SF:0,FILE:0,RULE:Release_Ham,ACT ION:release,TS:-5 X-CID-META: VersionHash:2a19b09,CLOUDID:87715ac6-12ba-4305-bfdf-9aefbdc32516,C OID:IGNORED,Recheck:0,SF:nil,TC:nil,Content:0,EDM:-3,IP:nil,URL:0,File:nil ,QS:0,BEC:nil X-UUID: 42f531b43e3a4355b674f5f6bbd5cdef-20220613 Received: from mtkmbs10n2.mediatek.inc [(172.21.101.183)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 755631472; Mon, 13 Jun 2022 14:48:44 +0800 Received: from mtkcas10.mediatek.inc (172.21.101.39) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.3; Mon, 13 Jun 2022 14:48:43 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas10.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Mon, 13 Jun 2022 14:48:43 +0800 From: Bo-Chen Chen To: , , , , , , CC: , , , , , , , , , , , , Bo-Chen Chen Subject: [PATCH v11 03/12] drm/mediatek: dpi: implement a CK/DE pol toggle in SoC config Date: Mon, 13 Jun 2022 14:48:32 +0800 Message-ID: <20220613064841.10481-4-rex-bc.chen@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20220613064841.10481-1-rex-bc.chen@mediatek.com> References: <20220613064841.10481-1-rex-bc.chen@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Guillaume Ranquet Dp_intf does not support CK/DE polarity because the polarity information is not used for eDP and DP while dp_intf is only for eDP and DP. Therefore, we add a bit of flexibility to support SoCs without CK/DE pol support. Signed-off-by: Guillaume Ranquet [Bo-Chen: Add modification reason in commit message.] Signed-off-by: Bo-Chen Chen Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Rex-BC Chen Reviewed-by: CK Hu --- drivers/gpu/drm/mediatek/mtk_dpi.c | 22 +++++++++++++++++----- 1 file changed, 17 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/= mtk_dpi.c index ce8c5eefe5f1..15218c1e8c11 100644 --- a/drivers/gpu/drm/mediatek/mtk_dpi.c +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c @@ -125,6 +125,7 @@ struct mtk_dpi_conf { bool edge_sel_en; const u32 *output_fmts; u32 num_output_fmts; + bool is_ck_de_pol; const struct mtk_dpi_yc_limit *limit; }; =20 @@ -211,13 +212,20 @@ static void mtk_dpi_config_pol(struct mtk_dpi *dpi, struct mtk_dpi_polarities *dpi_pol) { unsigned int pol; + unsigned int mask; =20 - pol =3D (dpi_pol->ck_pol =3D=3D MTK_DPI_POLARITY_RISING ? 0 : CK_POL) | - (dpi_pol->de_pol =3D=3D MTK_DPI_POLARITY_RISING ? 0 : DE_POL) | - (dpi_pol->hsync_pol =3D=3D MTK_DPI_POLARITY_RISING ? 0 : HSYNC_POL)= | + mask =3D HSYNC_POL | VSYNC_POL; + pol =3D (dpi_pol->hsync_pol =3D=3D MTK_DPI_POLARITY_RISING ? 0 : HSYNC_PO= L) | (dpi_pol->vsync_pol =3D=3D MTK_DPI_POLARITY_RISING ? 0 : VSYNC_POL); - mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING, pol, - CK_POL | DE_POL | HSYNC_POL | VSYNC_POL); + if (dpi->conf->is_ck_de_pol) { + mask |=3D CK_POL | DE_POL; + pol |=3D (dpi_pol->ck_pol =3D=3D MTK_DPI_POLARITY_RISING ? + 0 : CK_POL) | + (dpi_pol->de_pol =3D=3D MTK_DPI_POLARITY_RISING ? + 0 : DE_POL); + } + + mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING, pol, mask); } =20 static void mtk_dpi_config_3d(struct mtk_dpi *dpi, bool en_3d) @@ -799,6 +807,7 @@ static const struct mtk_dpi_conf mt8173_conf =3D { .max_clock_khz =3D 300000, .output_fmts =3D mt8173_output_fmts, .num_output_fmts =3D ARRAY_SIZE(mt8173_output_fmts), + .is_ck_de_pol =3D true, .limit =3D &mtk_dpi_limit, }; =20 @@ -809,6 +818,7 @@ static const struct mtk_dpi_conf mt2701_conf =3D { .max_clock_khz =3D 150000, .output_fmts =3D mt8173_output_fmts, .num_output_fmts =3D ARRAY_SIZE(mt8173_output_fmts), + .is_ck_de_pol =3D true, .limit =3D &mtk_dpi_limit, }; =20 @@ -818,6 +828,7 @@ static const struct mtk_dpi_conf mt8183_conf =3D { .max_clock_khz =3D 100000, .output_fmts =3D mt8183_output_fmts, .num_output_fmts =3D ARRAY_SIZE(mt8183_output_fmts), + .is_ck_de_pol =3D true, .limit =3D &mtk_dpi_limit, }; =20 @@ -827,6 +838,7 @@ static const struct mtk_dpi_conf mt8192_conf =3D { .max_clock_khz =3D 150000, .output_fmts =3D mt8183_output_fmts, .num_output_fmts =3D ARRAY_SIZE(mt8183_output_fmts), + .is_ck_de_pol =3D true, .limit =3D &mtk_dpi_limit, }; =20 --=20 2.18.0