From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sean Paul Subject: Re: [PATCH] drm/mediatek: Support reflect-y plane rotation Date: Mon, 4 Nov 2019 16:20:24 -0500 Message-ID: <20191104212024.GA63329@art_vandelay> References: <20191101132647.189033-1-sean@poorly.run> <1572654319.24679.4.camel@mtksdaap41> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <1572654319.24679.4.camel@mtksdaap41> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: CK Hu Cc: Daniele Castagna , dri-devel@lists.freedesktop.org, Matthias Brugger , Miguel Casas , Sean Paul , Philipp Zabel , Fritz Koenig , linux-mediatek@lists.infradead.org, Sean Paul , linux-arm-kernel@lists.infradead.org, Mark Yacoub List-Id: dri-devel@lists.freedesktop.org On Sat, Nov 02, 2019 at 08:25:19AM +0800, CK Hu wrote: > Hi, Sean: > > On Fri, 2019-11-01 at 09:26 -0400, Sean Paul wrote: > > From: Sean Paul > > > > Expose the rotation property and handle REFLECT_Y rotations. > > > > Cc: Fritz Koenig > > Cc: Daniele Castagna > > Cc: Miguel Casas > > Cc: Mark Yacoub > > Signed-off-by: Sean Paul > > --- > > > > The hardware also supports REFLECT_X, but I just could not figure out > > how to get it working. If someone is interested in getting this going, > > I'm happy to share notes and my WIP patch. For now, though, I actually > > only need y-flip so I'm giving up on x-flip. > > Does [1] give you any hint for x-flip, or that patch is incorrect? > > [1] > https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/1533519 > Hi CK, Thank you for the pointer, that did help! That patch is slightly incorrect, but pointed me to the issue I was having with REFLECT_X. I'll upload a new set with REFLECT_X and ROTATE_180 support shortly. Sean > > > > > > drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 6 ++++++ > > drivers/gpu/drm/mediatek/mtk_drm_plane.c | 11 ++++++++++- > > drivers/gpu/drm/mediatek/mtk_drm_plane.h | 1 + > > 3 files changed, 17 insertions(+), 1 deletion(-) > > > > diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c > > index 14878ebf59d7..6505479ee506 100644 > > --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c > > +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c > > @@ -50,6 +50,7 @@ > > OVL_CON_CLRFMT_RGB : 0) > > #define OVL_CON_AEN BIT(8) > > #define OVL_CON_ALPHA 0xff > > +#define OVL_CON_VIRT_FLIP BIT(9) > > > > struct mtk_disp_ovl_data { > > unsigned int addr; > > @@ -229,6 +230,11 @@ static void mtk_ovl_layer_config(struct mtk_ddp_comp *comp, unsigned int idx, > > if (idx != 0) > > con |= OVL_CON_AEN | OVL_CON_ALPHA; > > > > + if (pending->rotation & DRM_MODE_REFLECT_Y) { > > + con |= OVL_CON_VIRT_FLIP; > > + addr += (pending->height - 1) * pending->pitch; > > + } > > + > > writel_relaxed(con, comp->regs + DISP_REG_OVL_CON(idx)); > > writel_relaxed(pitch, comp->regs + DISP_REG_OVL_PITCH(idx)); > > writel_relaxed(src_size, comp->regs + DISP_REG_OVL_SRC_SIZE(idx)); > > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c b/drivers/gpu/drm/mediatek/mtk_drm_plane.c > > index 584a9ecadce6..4d8f2b55334b 100644 > > --- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c > > +++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c > > @@ -88,6 +88,9 @@ static int mtk_plane_atomic_check(struct drm_plane *plane, > > if (!fb) > > return 0; > > > > + if (fb->format->is_yuv && (state->rotation & ~DRM_MODE_ROTATE_0) != 0) > > + return -EINVAL; > > If this patch does not support all color format, please describe what > color format does this patch support, so others could try to make the > rest color format work. > > Regards, > CK > > > + > > if (!state->crtc) > > return 0; > > > > @@ -132,6 +135,7 @@ static void mtk_plane_atomic_update(struct drm_plane *plane, > > state->pending.y = plane->state->dst.y1; > > state->pending.width = drm_rect_width(&plane->state->dst); > > state->pending.height = drm_rect_height(&plane->state->dst); > > + state->pending.rotation = plane->state->rotation; > > wmb(); /* Make sure the above parameters are set before update */ > > state->pending.dirty = true; > > } > > @@ -166,7 +170,12 @@ int mtk_plane_init(struct drm_device *dev, struct drm_plane *plane, > > return err; > > } > > > > - drm_plane_helper_add(plane, &mtk_plane_helper_funcs); > > + err = drm_plane_create_rotation_property(plane, 0, > > + DRM_MODE_ROTATE_0 | > > + DRM_MODE_REFLECT_Y); > > + if (err) > > + DRM_INFO("Create rotation property failed, continuing...\n"); > > > > + drm_plane_helper_add(plane, &mtk_plane_helper_funcs); > > return 0; > > } > > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.h b/drivers/gpu/drm/mediatek/mtk_drm_plane.h > > index 6f842df722c7..83b634a997cc 100644 > > --- a/drivers/gpu/drm/mediatek/mtk_drm_plane.h > > +++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.h > > @@ -20,6 +20,7 @@ struct mtk_plane_pending_state { > > unsigned int y; > > unsigned int width; > > unsigned int height; > > + unsigned int rotation; > > bool dirty; > > }; > > > > -- Sean Paul, Software Engineer, Google / Chromium OS 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=-8.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 55AD1CA9EC9 for ; Mon, 4 Nov 2019 21:20:28 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client 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(version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 Nov 2019 13:20:24 -0800 (PST) Date: Mon, 4 Nov 2019 16:20:24 -0500 From: Sean Paul To: CK Hu Subject: Re: [PATCH] drm/mediatek: Support reflect-y plane rotation Message-ID: <20191104212024.GA63329@art_vandelay> References: <20191101132647.189033-1-sean@poorly.run> <1572654319.24679.4.camel@mtksdaap41> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1572654319.24679.4.camel@mtksdaap41> User-Agent: Mutt/1.10.1 (2018-07-13) X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=poorly.run; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=OZKsfFaybCUsa3mStDHqmBR3Wkj6icu+7VdtxsBxOfU=; b=T6eB4AT9j0t3yWPfCx6JLXnMXByaB7WWCzN/YdbfCKMXw2qppUfNpIBM+a0JYeXvJi W9ZzNhfCq6R23pYJNgOyTmu389AQZloblU8IaTm7qvXN9kwXuxMEzqhNrarBUJfxDjfl YmkbqVApiY5kzOPQpVm4u/Wla6PnOEtgcBzKl6aELjvpbPhcO4p7s+VTEMOyz5XGRfRm 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