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[86.58.17.133]) by smtp.gmail.com with ESMTPSA id b135sm90191wmb.5.2021.05.31.10.24.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 31 May 2021 10:24:41 -0700 (PDT) From: Jernej =?utf-8?B?xaBrcmFiZWM=?= To: linux-kernel@vger.kernel.org, Roman Stratiienko Subject: Re: [PATCH v4 1/2] drm/sun4i: Add mode_set callback to the engine Date: Mon, 31 May 2021 19:24:40 +0200 Message-ID: <2404786.ubhusWIBXB@kista> In-Reply-To: <20210528203036.17999-2-r.stratiienko@gmail.com> References: <20210528203036.17999-1-r.stratiienko@gmail.com> <20210528203036.17999-2-r.stratiienko@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-Mailman-Approved-At: Mon, 31 May 2021 21:20:10 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: megous@megous.com, jernej.skrabec@siol.net, linux-sunxi@googlegroups.com, dri-devel@lists.freedesktop.org, wens@csie.org, Roman Stratiienko Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Hi! Dne petek, 28. maj 2021 ob 22:30:35 CEST je Roman Stratiienko napisal(a): > Create callback to allow updating engine's registers on mode change. > > Signed-off-by: Roman Stratiienko > Reviewed-by: Jernej Skrabec > --- > drivers/gpu/drm/sun4i/sun4i_crtc.c | 3 +++ > drivers/gpu/drm/sun4i/sunxi_engine.h | 12 ++++++++++++ > 2 files changed, 15 insertions(+) > > diff --git a/drivers/gpu/drm/sun4i/sun4i_crtc.c b/drivers/gpu/drm/sun4i/ sun4i_crtc.c > index 45d9eb552d86..8f01a6b2bbef 100644 > --- a/drivers/gpu/drm/sun4i/sun4i_crtc.c > +++ b/drivers/gpu/drm/sun4i/sun4i_crtc.c > @@ -146,6 +146,9 @@ static void sun4i_crtc_mode_set_nofb(struct drm_crtc *crtc) > struct sun4i_crtc *scrtc = drm_crtc_to_sun4i_crtc(crtc); > > sun4i_tcon_mode_set(scrtc->tcon, encoder, mode); > + > + if (scrtc->engine->ops->mode_set) > + scrtc->engine->ops->mode_set(scrtc->engine, mode); > } > > static const struct drm_crtc_helper_funcs sun4i_crtc_helper_funcs = { > diff --git a/drivers/gpu/drm/sun4i/sunxi_engine.h b/drivers/gpu/drm/sun4i/ sunxi_engine.h > index 548710a936d5..7faa844646ff 100644 > --- a/drivers/gpu/drm/sun4i/sunxi_engine.h > +++ b/drivers/gpu/drm/sun4i/sunxi_engine.h > @@ -9,6 +9,7 @@ > struct drm_plane; > struct drm_device; > struct drm_crtc_state; > +struct drm_display_mode; > > struct sunxi_engine; > > @@ -108,6 +109,17 @@ struct sunxi_engine_ops { > * This function is optional. > */ > void (*vblank_quirk)(struct sunxi_engine *engine); > + > + /** > + * @mode_set: > + * > + * This callback is used to update engine registers that > + * responsible for display frame size and other mode attributes. > + * > + * This function is optional. > + */ > + void (*mode_set)(struct sunxi_engine *engine, > + struct drm_display_mode *mode); Mark mode as const. Best regards, Jernej > }; > > /** >