From mboxrd@z Thu Jan 1 00:00:00 1970 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 1CD57C433EF for ; Tue, 5 Jul 2022 03:51:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233570AbiGEDvp (ORCPT ); Mon, 4 Jul 2022 23:51:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33742 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231820AbiGEDvm (ORCPT ); Mon, 4 Jul 2022 23:51:42 -0400 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CDD1012AB7; Mon, 4 Jul 2022 20:51:40 -0700 (PDT) X-UUID: d642034da23748ad873da8e304accd14-20220705 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.8,REQID:4d4a6b8d-65ab-4359-8ba3-3e69b56a1b26,OB:20,L OB:10,IP:0,URL:5,TC:0,Content:0,EDM:0,RT:0,SF:45,FILE:0,RULE:Release_Ham,A CTION:release,TS:50 X-CID-INFO: VERSION:1.1.8,REQID:4d4a6b8d-65ab-4359-8ba3-3e69b56a1b26,OB:20,LOB :10,IP:0,URL:5,TC:0,Content:0,EDM:0,RT:0,SF:45,FILE:0,RULE:Release_Ham,ACT ION:release,TS:50 X-CID-META: VersionHash:0f94e32,CLOUDID:183d6b63-0b3f-4b2c-b3a6-ed5c044366a0,C OID:afb3c8819ce9,Recheck:0,SF:28|17|19|48,TC:nil,Content:0,EDM:-3,IP:nil,U RL:1,File:nil,QS:nil,BEC:nil,COL:0 X-UUID: d642034da23748ad873da8e304accd14-20220705 Received: from mtkmbs10n1.mediatek.inc [(172.21.101.34)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 980565716; Tue, 05 Jul 2022 11:51:36 +0800 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by mtkmbs11n2.mediatek.inc (172.21.101.187) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.3; Tue, 5 Jul 2022 11:51:35 +0800 Received: from mtksdccf07 (172.21.84.99) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.3 via Frontend Transport; Tue, 5 Jul 2022 11:51:35 +0800 Message-ID: <970b3bed67850d113b9af4b3d62eb9029772642e.camel@mediatek.com> Subject: Re: [PATCH v15 07/16] drm/mediatek: dpi: implement a swap_input toggle in SoC config From: CK Hu To: Bo-Chen Chen , , , , , , , CC: , , , , , , , , , , , , Date: Tue, 5 Jul 2022 11:51:35 +0800 In-Reply-To: <20220701035845.16458-8-rex-bc.chen@mediatek.com> References: <20220701035845.16458-1-rex-bc.chen@mediatek.com> <20220701035845.16458-8-rex-bc.chen@mediatek.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.28.5-0ubuntu0.18.04.2 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Bo-Chen: On Fri, 2022-07-01 at 11:58 +0800, Bo-Chen Chen wrote: > From: Guillaume Ranquet > > The hardware design of dp_intf does not support input swap, so we add > a bit of flexibility to support SoCs without swap_input support. > We also add a warning message if the hardware is not supported and it > needs to swap input. Applied to mediatek-drm-next [1], thanks. [1] https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux.git/log/?h=mediatek-drm-next Regards, CK > > Signed-off-by: Guillaume Ranquet > Signed-off-by: Bo-Chen Chen > Reviewed-by: AngeloGioacchino Del Regno < > angelogioacchino.delregno@collabora.com> > Reviewed-by: Rex-BC Chen > Reviewed-by: CK Hu > --- > drivers/gpu/drm/mediatek/mtk_dpi.c | 9 ++++++++- > 1 file changed, 8 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c > b/drivers/gpu/drm/mediatek/mtk_dpi.c > index b89ad9f38396..ba871c347d15 100644 > --- a/drivers/gpu/drm/mediatek/mtk_dpi.c > +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c > @@ -121,6 +121,7 @@ struct mtk_dpi_yc_limit { > * @output_fmts: Array of supported output formats. > * @num_output_fmts: Quantity of supported output formats. > * @is_ck_de_pol: Support CK/DE polarity. > + * @swap_input_support: Support input swap function. > */ > struct mtk_dpi_conf { > unsigned int (*cal_factor)(int clock); > @@ -130,6 +131,7 @@ struct mtk_dpi_conf { > const u32 *output_fmts; > u32 num_output_fmts; > bool is_ck_de_pol; > + bool swap_input_support; > }; > > static void mtk_dpi_mask(struct mtk_dpi *dpi, u32 offset, u32 val, > u32 mask) > @@ -393,7 +395,8 @@ static void mtk_dpi_config_color_format(struct > mtk_dpi *dpi, > /* only support RGB888 */ > mtk_dpi_config_yuv422_enable(dpi, false); > mtk_dpi_config_csc_enable(dpi, false); > - mtk_dpi_config_swap_input(dpi, false); > + if (dpi->conf->swap_input_support) > + mtk_dpi_config_swap_input(dpi, false); > mtk_dpi_config_channel_swap(dpi, MTK_DPI_OUT_CHANNEL_SWAP_RGB); > } > > @@ -804,6 +807,7 @@ static const struct mtk_dpi_conf mt8173_conf = { > .output_fmts = mt8173_output_fmts, > .num_output_fmts = ARRAY_SIZE(mt8173_output_fmts), > .is_ck_de_pol = true, > + .swap_input_support = true, > }; > > static const struct mtk_dpi_conf mt2701_conf = { > @@ -814,6 +818,7 @@ static const struct mtk_dpi_conf mt2701_conf = { > .output_fmts = mt8173_output_fmts, > .num_output_fmts = ARRAY_SIZE(mt8173_output_fmts), > .is_ck_de_pol = true, > + .swap_input_support = true, > }; > > static const struct mtk_dpi_conf mt8183_conf = { > @@ -823,6 +828,7 @@ static const struct mtk_dpi_conf mt8183_conf = { > .output_fmts = mt8183_output_fmts, > .num_output_fmts = ARRAY_SIZE(mt8183_output_fmts), > .is_ck_de_pol = true, > + .swap_input_support = true, > }; > > static const struct mtk_dpi_conf mt8192_conf = { > @@ -832,6 +838,7 @@ static const struct mtk_dpi_conf mt8192_conf = { > .output_fmts = mt8183_output_fmts, > .num_output_fmts = ARRAY_SIZE(mt8183_output_fmts), > .is_ck_de_pol = true, > + .swap_input_support = true, > }; > > static int mtk_dpi_probe(struct platform_device *pdev)