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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id D5D18C433F5 for ; Mon, 28 Mar 2022 07:32:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Date:CC: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=6jtZ9oHi0ahVpkvI1cfJwEKqeGYIcoI7uIDFeDxpmUo=; b=J8oYBMvVaxEPTU wIabr5xMNuCtuNhShF1ZyKyZZ672qKAuYU+JeVk+V/6MdabQ8IeK7KKCTITa0FTlg/2h3vkOLX6VA UyXOEIQyESQ5FM6z8PHO9R40rrTJ60jETDglIAYOa2yvI6gZZ9CpyHZkG/1Axjsjs7S0K+Bj4RDEZ m4+zDXmn/yeh+onM3N/BEnI3nUnf/zUliPKtKkmq+O5EjIZgu2JNLwejJkDCW7SqsEH0BJq8eDCjG WPI5Ls7h52iFpnOHcoOULqhHwY1hJT7kkt7Avvu28Dm24nGbzPfbihnXcDssMyXMe4y2y5MtKWKW9 SCKOlFTotydz/1Qa9xmQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nYjqp-007dDD-LE; Mon, 28 Mar 2022 07:31:43 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nYjql-007dB8-9Q; Mon, 28 Mar 2022 07:31:41 +0000 X-UUID: d603054cef1a4c578a3e0b7242e7fad0-20220328 X-UUID: d603054cef1a4c578a3e0b7242e7fad0-20220328 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 143643515; Mon, 28 Mar 2022 00:31:32 -0700 Received: from mtkmbs10n1.mediatek.inc (172.21.101.34) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 28 Mar 2022 00:31:30 -0700 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.15; Mon, 28 Mar 2022 15:31:28 +0800 Received: from mtksdccf07 (172.21.84.99) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Mon, 28 Mar 2022 15:31:28 +0800 Message-ID: <8c7d47869dc8a9e8580740fe25bb2fd289253a4d.camel@mediatek.com> Subject: Re: [PATCH v9 08/22] drm/mediatek: dpi: implement a CK/DE pol toggle in SoC config From: Rex-BC Chen To: Guillaume Ranquet , , , , , , , , , , , , , , , , , CC: , , , , , , , Date: Mon, 28 Mar 2022 15:31:28 +0800 In-Reply-To: <20220327223927.20848-9-granquet@baylibre.com> References: <20220327223927.20848-1-granquet@baylibre.com> <20220327223927.20848-9-granquet@baylibre.com> X-Mailer: Evolution 3.28.5-0ubuntu0.18.04.2 MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220328_003139_347633_12B0BC04 X-CRM114-Status: GOOD ( 15.62 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, 2022-03-28 at 00:39 +0200, Guillaume Ranquet wrote: > Adds a bit of flexibility to support SoCs without CK/DE pol support > > Signed-off-by: Guillaume Ranquet > Reviewed-by: AngeloGioacchino Del Regno < > angelogioacchino.delregno@collabora.com> > --- > 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 4746eb342567..545a1337cc89 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; > }; > > @@ -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; > > - pol = (dpi_pol->ck_pol == MTK_DPI_POLARITY_RISING ? 0 : CK_POL) > | > - (dpi_pol->de_pol == MTK_DPI_POLARITY_RISING ? 0 : DE_POL) > | > - (dpi_pol->hsync_pol == MTK_DPI_POLARITY_RISING ? 0 : > HSYNC_POL) | > + mask = HSYNC_POL | VSYNC_POL; > + pol = (dpi_pol->hsync_pol == MTK_DPI_POLARITY_RISING ? 0 : > HSYNC_POL) | > (dpi_pol->vsync_pol == 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 |= CK_POL | DE_POL; > + pol |= (dpi_pol->ck_pol == MTK_DPI_POLARITY_RISING ? > + 0 : CK_POL) | > + (dpi_pol->de_pol == MTK_DPI_POLARITY_RISING ? > + 0 : DE_POL); > + } > + > + mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING, pol, mask); > } > > 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 = { > .max_clock_khz = 300000, > .output_fmts = mt8173_output_fmts, > .num_output_fmts = ARRAY_SIZE(mt8173_output_fmts), > + .is_ck_de_pol = true, > .limit = &mtk_dpi_limit, > }; > > @@ -809,6 +818,7 @@ static const struct mtk_dpi_conf mt2701_conf = { > .max_clock_khz = 150000, > .output_fmts = mt8173_output_fmts, > .num_output_fmts = ARRAY_SIZE(mt8173_output_fmts), > + .is_ck_de_pol = true, > .limit = &mtk_dpi_limit, > }; > > @@ -818,6 +828,7 @@ static const struct mtk_dpi_conf mt8183_conf = { > .max_clock_khz = 100000, > .output_fmts = mt8183_output_fmts, > .num_output_fmts = ARRAY_SIZE(mt8183_output_fmts), > + .is_ck_de_pol = true, > .limit = &mtk_dpi_limit, > }; > > @@ -827,6 +838,7 @@ static const struct mtk_dpi_conf mt8192_conf = { > .max_clock_khz = 150000, > .output_fmts = mt8173_output_fmts, > .num_output_fmts = ARRAY_SIZE(mt8173_output_fmts), > + .is_ck_de_pol = true, > .limit = &mtk_dpi_limit, > }; > Reviewed-by: Rex-BC Chen _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel