From mboxrd@z Thu Jan 1 00:00:00 1970 From: CK Hu Subject: Re: [PATCH v2 06/25] drm/mediatek: redefine mtk_ddp_sout_sel Date: Thu, 11 Apr 2019 14:09:48 +0800 Message-ID: <1554962988.4768.4.camel@mtksdaap41> References: <1553667561-25447-1-git-send-email-yongqiang.niu@mediatek.com> <1553667561-25447-7-git-send-email-yongqiang.niu@mediatek.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <1553667561-25447-7-git-send-email-yongqiang.niu@mediatek.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: yongqiang.niu@mediatek.com Cc: mark.rutland@arm.com, devicetree@vger.kernel.org, airlied@linux.ie, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, robh+dt@kernel.org, linux-mediatek@lists.infradead.org, matthias.bgg@gmail.com, linux-arm-kernel@lists.infradead.org List-Id: linux-mediatek@lists.infradead.org SGksIFlvbmdxaWFuZzoKCk9uIFdlZCwgMjAxOS0wMy0yNyBhdCAxNDoxOSArMDgwMCwgeW9uZ3Fp YW5nLm5pdUBtZWRpYXRlay5jb20gd3JvdGU6Cj4gRnJvbTogWW9uZ3FpYW5nIE5pdSA8eW9uZ3Fp YW5nLm5pdUBtZWRpYXRlay5jb20+Cj4gCj4gdGhlIGZvcm1hdCBvZiAibXRrX2RkcF9zb3V0X3Nl bCJ3YXMgbm90IGZsZXhpYmxlLCBhZnRlciB3ZSBhZGQgbW9yZQo+IG1lZGlhdGVrIFNPQyBzdXBw b3J0LCB0aGF0IHdpbGwgYmUgcmVkdW5kYW50CgpJdCBsb29rcyBsaWtlIHRoaXMgcGF0Y2ggaXMg cGFydCBvZiBwYXRjaCAnYWRkIG1tc3lzIHByaXZhdGUgZGF0YSBmb3IKZGRwIHBhdGggY29uZmln Jywgc28gSSB3b3VsZCBsaWtlIHlvdSBzcXVhc2ggdGhpcyBwYXRjaCBpbnRvIHRoYXQgcGF0Y2gu CgpSZWdhcmRzLApDSwoKPiAKPiBTaWduZWQtb2ZmLWJ5OiBZb25ncWlhbmcgTml1IDx5b25ncWlh bmcubml1QG1lZGlhdGVrLmNvbT4KPiAtLS0KPiAgZHJpdmVycy9ncHUvZHJtL21lZGlhdGVrL210 a19kcm1fZGRwLmMgfCAyOCArKysrKysrKysrKysrKysrKystLS0tLS0tLS0tCj4gIDEgZmlsZSBj aGFuZ2VkLCAxOCBpbnNlcnRpb25zKCspLCAxMCBkZWxldGlvbnMoLSkKPiAKPiBkaWZmIC0tZ2l0 IGEvZHJpdmVycy9ncHUvZHJtL21lZGlhdGVrL210a19kcm1fZGRwLmMgYi9kcml2ZXJzL2dwdS9k cm0vbWVkaWF0ZWsvbXRrX2RybV9kZHAuYwo+IGluZGV4IDgwZGM5MWYuLmU0ZGFmZTAgMTAwNjQ0 Cj4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL21lZGlhdGVrL210a19kcm1fZGRwLmMKPiArKysgYi9k cml2ZXJzL2dwdS9kcm0vbWVkaWF0ZWsvbXRrX2RybV9kZHAuYwo+IEBAIC0zOTEsMjAgKzM5MSwy NiBAQCBzdGF0aWMgdW5zaWduZWQgaW50IG10a19kZHBfc2VsX2luKGVudW0gbXRrX2RkcF9jb21w X2lkIGN1ciwKPiAgCXJldHVybiB2YWx1ZTsKPiAgfQo+ICAKPiAtc3RhdGljIHZvaWQgbXRrX2Rk cF9zb3V0X3NlbCh2b2lkIF9faW9tZW0gKmNvbmZpZ19yZWdzLAo+IC0JCQkgICAgIGVudW0gbXRr X2RkcF9jb21wX2lkIGN1ciwKPiAtCQkJICAgICBlbnVtIG10a19kZHBfY29tcF9pZCBuZXh0KQo+ ICtzdGF0aWMgdW5zaWduZWQgaW50IG10a19kZHBfc291dF9zZWwoZW51bSBtdGtfZGRwX2NvbXBf aWQgY3VyLAo+ICsJCQkJICAgICBlbnVtIG10a19kZHBfY29tcF9pZCBuZXh0LAo+ICsJCQkJICAg ICB1bnNpZ25lZCBpbnQgKmFkZHIpCj4gIHsKPiArICAgICAgICB1bnNpZ25lZCBpbnQgdmFsdWU7 Cj4gKwo+ICAJaWYgKGN1ciA9PSBERFBfQ09NUE9ORU5UX0JMUyAmJiBuZXh0ID09IEREUF9DT01Q T05FTlRfRFNJMCkgewo+IC0JCXdyaXRlbF9yZWxheGVkKEJMU19UT19EU0lfUkRNQTFfVE9fRFBJ MSwKPiAtCQkJICAgICAgIGNvbmZpZ19yZWdzICsgRElTUF9SRUdfQ09ORklHX09VVF9TRUwpOwo+ ICsJCSphZGRyID0gRElTUF9SRUdfQ09ORklHX09VVF9TRUw7Cj4gKyAgICAgICAgICAgICAgICB2 YWx1ZSA9IEJMU19UT19EU0lfUkRNQTFfVE9fRFBJMTsKPiAgCX0gZWxzZSBpZiAoY3VyID09IERE UF9DT01QT05FTlRfQkxTICYmIG5leHQgPT0gRERQX0NPTVBPTkVOVF9EUEkwKSB7Cj4gLQkJd3Jp dGVsX3JlbGF4ZWQoQkxTX1RPX0RQSV9SRE1BMV9UT19EU0ksCj4gLQkJCSAgICAgICBjb25maWdf cmVncyArIERJU1BfUkVHX0NPTkZJR19PVVRfU0VMKTsKPiArCQkqYWRkciA9IERJU1BfUkVHX0NP TkZJR19PVVRfU0VMOwo+ICsgICAgICAgICAgICAgICAgdmFsdWUgPSBCTFNfVE9fRFBJX1JETUEx X1RPX0RTSTsKPiAgCX0gZWxzZSBpZiAoY3VyID09IEREUF9DT01QT05FTlRfUkRNQTEgJiYgbmV4 dCA9PSBERFBfQ09NUE9ORU5UX0RTSTApIHsKPiAtCQl3cml0ZWxfcmVsYXhlZChEU0lfU0VMX0lO X1JETUEsCj4gLQkJCSAgICAgICBjb25maWdfcmVncyArIERJU1BfUkVHX0NPTkZJR19EU0lfU0VM KTsKPiArCQkqYWRkciA9IERJU1BfUkVHX0NPTkZJR19EU0lfU0VMOwo+ICsJCXZhbHVlID0gRFNJ X1NFTF9JTl9SRE1BOwo+ICsJfSBlbHNlIHsKPiArCQl2YWx1ZSA9IDA7Cj4gIAl9Cj4gKwo+ICsg ICAgICAgIHJldHVybiB2YWx1ZTsKPiAgfQo+ICAKPiAgdm9pZCBtdGtfZGRwX2FkZF9jb21wX3Rv X3BhdGgodm9pZCBfX2lvbWVtICpjb25maWdfcmVncywKPiBAQCAtNDE5LDcgKzQyNSw5IEBAIHZv aWQgbXRrX2RkcF9hZGRfY29tcF90b19wYXRoKHZvaWQgX19pb21lbSAqY29uZmlnX3JlZ3MsCj4g IAkJd3JpdGVsX3JlbGF4ZWQocmVnLCBjb25maWdfcmVncyArIGFkZHIpOwo+ICAJfQo+ICAKPiAt CW10a19kZHBfc291dF9zZWwoY29uZmlnX3JlZ3MsIGN1ciwgbmV4dCk7Cj4gKwl2YWx1ZSA9IG10 a19kZHBfc291dF9zZWwoY3VyLCBuZXh0LCAmYWRkcik7Cj4gKwlpZiAodmFsdWUpCj4gKyAgICAg ICAgICAgICAgICB3cml0ZWxfcmVsYXhlZCh2YWx1ZSwgY29uZmlnX3JlZ3MgKyBhZGRyKTsKPiAg Cj4gIAl2YWx1ZSA9IG10a19kZHBfc2VsX2luKGN1ciwgbmV4dCwgJmFkZHIpOwo+ICAJaWYgKHZh bHVlKSB7CgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18K ZHJpLWRldmVsIG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0 dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVs 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 X-Spam-Level: X-Spam-Status: No, score=-7.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 612A6C10F13 for ; Thu, 11 Apr 2019 06:10:09 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2F99F2082E for ; Thu, 11 Apr 2019 06:10:09 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="RoTUzXK9" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2F99F2082E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Date:To:From:Subject:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=2ovaamuagEoTB34WfeO6+23k8se0HPK1hml70UYauwQ=; b=RoTUzXK9U9D4WM iMdBFAFIyiZF/sgSWLg/FoDpZojiCgIqbQwMoGj3bHYxmIZwID5ogUbL83YIqaZbRkerDltEsmqjC BY2kGxPV+0gs7L6bivflYFW9ejtM9LaCEJSFyc+KYNc7BcfPDZu6x5LnHljXkYvNkGfHbsVhiCyG2 IsK3CXfAxsDyFMZ5kV+YavKoHc84gfYBN20IExpSaNyPoofte856Q7b0aob5GNxScMlQ2ujcyblnH 2J96yeH+UD9/vnB46BAy3tvh+Fy0daCVNRJgQPiPea0tpn5xrE1XCHCEm5azii9sy7AV52z+I/Vc2 wh1W6Xo4pjUouMEeKJ+Q==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hESuV-0001Fz-Rh; Thu, 11 Apr 2019 06:10:07 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hESuR-0000aq-Bn; Thu, 11 Apr 2019 06:10:05 +0000 X-UUID: e9811e053b264ef79e094b80ed4bab26-20190410 X-UUID: e9811e053b264ef79e094b80ed4bab26-20190410 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 1093055929; Wed, 10 Apr 2019 22:09:51 -0800 Received: from MTKMBS01N1.mediatek.inc (172.21.101.68) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Wed, 10 Apr 2019 23:09:50 -0700 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs01n1.mediatek.inc (172.21.101.68) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Thu, 11 Apr 2019 14:09:48 +0800 Received: from [172.21.77.4] (172.21.77.4) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Thu, 11 Apr 2019 14:09:48 +0800 Message-ID: <1554962988.4768.4.camel@mtksdaap41> Subject: Re: [PATCH v2 06/25] drm/mediatek: redefine mtk_ddp_sout_sel From: CK Hu To: Date: Thu, 11 Apr 2019 14:09:48 +0800 In-Reply-To: <1553667561-25447-7-git-send-email-yongqiang.niu@mediatek.com> References: <1553667561-25447-1-git-send-email-yongqiang.niu@mediatek.com> <1553667561-25447-7-git-send-email-yongqiang.niu@mediatek.com> X-Mailer: Evolution 3.10.4-0ubuntu2 MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190410_231003_571059_70135BFB X-CRM114-Status: GOOD ( 13.97 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, devicetree@vger.kernel.org, Bibby.Hsieh@mediatek.com, airlied@linux.ie, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, yt.shen@mediatek.com, robh+dt@kernel.org, linux-mediatek@lists.infradead.org, p.zabel@pengutronix.de, matthias.bgg@gmail.com, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi, Yongqiang: On Wed, 2019-03-27 at 14:19 +0800, yongqiang.niu@mediatek.com wrote: > From: Yongqiang Niu > > the format of "mtk_ddp_sout_sel"was not flexible, after we add more > mediatek SOC support, that will be redundant It looks like this patch is part of patch 'add mmsys private data for ddp path config', so I would like you squash this patch into that patch. Regards, CK > > Signed-off-by: Yongqiang Niu > --- > drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 28 ++++++++++++++++++---------- > 1 file changed, 18 insertions(+), 10 deletions(-) > > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c > index 80dc91f..e4dafe0 100644 > --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c > +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c > @@ -391,20 +391,26 @@ static unsigned int mtk_ddp_sel_in(enum mtk_ddp_comp_id cur, > return value; > } > > -static void mtk_ddp_sout_sel(void __iomem *config_regs, > - enum mtk_ddp_comp_id cur, > - enum mtk_ddp_comp_id next) > +static unsigned int mtk_ddp_sout_sel(enum mtk_ddp_comp_id cur, > + enum mtk_ddp_comp_id next, > + unsigned int *addr) > { > + unsigned int value; > + > if (cur == DDP_COMPONENT_BLS && next == DDP_COMPONENT_DSI0) { > - writel_relaxed(BLS_TO_DSI_RDMA1_TO_DPI1, > - config_regs + DISP_REG_CONFIG_OUT_SEL); > + *addr = DISP_REG_CONFIG_OUT_SEL; > + value = BLS_TO_DSI_RDMA1_TO_DPI1; > } else if (cur == DDP_COMPONENT_BLS && next == DDP_COMPONENT_DPI0) { > - writel_relaxed(BLS_TO_DPI_RDMA1_TO_DSI, > - config_regs + DISP_REG_CONFIG_OUT_SEL); > + *addr = DISP_REG_CONFIG_OUT_SEL; > + value = BLS_TO_DPI_RDMA1_TO_DSI; > } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI0) { > - writel_relaxed(DSI_SEL_IN_RDMA, > - config_regs + DISP_REG_CONFIG_DSI_SEL); > + *addr = DISP_REG_CONFIG_DSI_SEL; > + value = DSI_SEL_IN_RDMA; > + } else { > + value = 0; > } > + > + return value; > } > > void mtk_ddp_add_comp_to_path(void __iomem *config_regs, > @@ -419,7 +425,9 @@ void mtk_ddp_add_comp_to_path(void __iomem *config_regs, > writel_relaxed(reg, config_regs + addr); > } > > - mtk_ddp_sout_sel(config_regs, cur, next); > + value = mtk_ddp_sout_sel(cur, next, &addr); > + if (value) > + writel_relaxed(value, config_regs + addr); > > value = mtk_ddp_sel_in(cur, next, &addr); > if (value) { _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel 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 X-Spam-Level: X-Spam-Status: No, score=-7.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,UNPARSEABLE_RELAY autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 62E4BC10F13 for ; Thu, 11 Apr 2019 06:10:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3227B2133D for ; Thu, 11 Apr 2019 06:10:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726671AbfDKGKA (ORCPT ); Thu, 11 Apr 2019 02:10:00 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:63337 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1726017AbfDKGKA (ORCPT ); Thu, 11 Apr 2019 02:10:00 -0400 X-UUID: 85f4980358b94fe799f953aedfac691e-20190411 X-UUID: 85f4980358b94fe799f953aedfac691e-20190411 Received: from mtkexhb01.mediatek.inc [(172.21.101.102)] by mailgw02.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 264371904; Thu, 11 Apr 2019 14:09:49 +0800 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs01n1.mediatek.inc (172.21.101.68) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Thu, 11 Apr 2019 14:09:48 +0800 Received: from [172.21.77.4] (172.21.77.4) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Thu, 11 Apr 2019 14:09:48 +0800 Message-ID: <1554962988.4768.4.camel@mtksdaap41> Subject: Re: [PATCH v2 06/25] drm/mediatek: redefine mtk_ddp_sout_sel From: CK Hu To: CC: , , , , , , , , , , , Date: Thu, 11 Apr 2019 14:09:48 +0800 In-Reply-To: <1553667561-25447-7-git-send-email-yongqiang.niu@mediatek.com> References: <1553667561-25447-1-git-send-email-yongqiang.niu@mediatek.com> <1553667561-25447-7-git-send-email-yongqiang.niu@mediatek.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.10.4-0ubuntu2 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-MTK: N Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Yongqiang: On Wed, 2019-03-27 at 14:19 +0800, yongqiang.niu@mediatek.com wrote: > From: Yongqiang Niu > > the format of "mtk_ddp_sout_sel"was not flexible, after we add more > mediatek SOC support, that will be redundant It looks like this patch is part of patch 'add mmsys private data for ddp path config', so I would like you squash this patch into that patch. Regards, CK > > Signed-off-by: Yongqiang Niu > --- > drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 28 ++++++++++++++++++---------- > 1 file changed, 18 insertions(+), 10 deletions(-) > > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c > index 80dc91f..e4dafe0 100644 > --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c > +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c > @@ -391,20 +391,26 @@ static unsigned int mtk_ddp_sel_in(enum mtk_ddp_comp_id cur, > return value; > } > > -static void mtk_ddp_sout_sel(void __iomem *config_regs, > - enum mtk_ddp_comp_id cur, > - enum mtk_ddp_comp_id next) > +static unsigned int mtk_ddp_sout_sel(enum mtk_ddp_comp_id cur, > + enum mtk_ddp_comp_id next, > + unsigned int *addr) > { > + unsigned int value; > + > if (cur == DDP_COMPONENT_BLS && next == DDP_COMPONENT_DSI0) { > - writel_relaxed(BLS_TO_DSI_RDMA1_TO_DPI1, > - config_regs + DISP_REG_CONFIG_OUT_SEL); > + *addr = DISP_REG_CONFIG_OUT_SEL; > + value = BLS_TO_DSI_RDMA1_TO_DPI1; > } else if (cur == DDP_COMPONENT_BLS && next == DDP_COMPONENT_DPI0) { > - writel_relaxed(BLS_TO_DPI_RDMA1_TO_DSI, > - config_regs + DISP_REG_CONFIG_OUT_SEL); > + *addr = DISP_REG_CONFIG_OUT_SEL; > + value = BLS_TO_DPI_RDMA1_TO_DSI; > } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI0) { > - writel_relaxed(DSI_SEL_IN_RDMA, > - config_regs + DISP_REG_CONFIG_DSI_SEL); > + *addr = DISP_REG_CONFIG_DSI_SEL; > + value = DSI_SEL_IN_RDMA; > + } else { > + value = 0; > } > + > + return value; > } > > void mtk_ddp_add_comp_to_path(void __iomem *config_regs, > @@ -419,7 +425,9 @@ void mtk_ddp_add_comp_to_path(void __iomem *config_regs, > writel_relaxed(reg, config_regs + addr); > } > > - mtk_ddp_sout_sel(config_regs, cur, next); > + value = mtk_ddp_sout_sel(cur, next, &addr); > + if (value) > + writel_relaxed(value, config_regs + addr); > > value = mtk_ddp_sel_in(cur, next, &addr); > if (value) {