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Wed, 27 May 2020 11:50:46 -0400 (EDT) From: Maxime Ripard To: Nicolas Saenz Julienne , Eric Anholt Subject: [PATCH v3 056/105] drm/vc4: crtc: Move the CRTC disable out Date: Wed, 27 May 2020 17:48:26 +0200 Message-Id: <601527fea6bb226abd088a864e74b25368218e87.1590594512.git-series.maxime@cerno.tech> X-Mailer: git-send-email 2.26.2 In-Reply-To: References: MIME-Version: 1.0 X-Mailman-Approved-At: Thu, 28 May 2020 07:43:50 +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: Tim Gover , Dave Stevenson , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, bcm-kernel-feedback-list@broadcom.com, linux-rpi-kernel@lists.infradead.org, Phil Elwell , linux-arm-kernel@lists.infradead.org, Maxime Ripard Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" We'll need to reuse the part that disables the HVS and PixelValve during boot too, so let's create a separate function. Signed-off-by: Maxime Ripard --- drivers/gpu/drm/vc4/vc4_crtc.c | 34 ++++++++++++++++++++++------------ 1 file changed, 22 insertions(+), 12 deletions(-) diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c index ecb3431470dd..3d2a31cad7fa 100644 --- a/drivers/gpu/drm/vc4/vc4_crtc.c +++ b/drivers/gpu/drm/vc4/vc4_crtc.c @@ -382,20 +382,14 @@ static void require_hvs_enabled(struct drm_device *dev) SCALER_DISPCTRL_ENABLE); } -static void vc4_crtc_atomic_disable(struct drm_crtc *crtc, - struct drm_crtc_state *old_state) +static int vc4_crtc_disable(struct drm_crtc *crtc, unsigned int channel) { - struct drm_device *dev = crtc->dev; - struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc); struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc); struct vc4_encoder *vc4_encoder = to_vc4_encoder(encoder); + struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc); + struct drm_device *dev = crtc->dev; int ret; - require_hvs_enabled(dev); - - /* Disable vblank irq handling before crtc is disabled. */ - drm_crtc_vblank_off(crtc); - CRTC_WRITE(PV_V_CONTROL, CRTC_READ(PV_V_CONTROL) & ~PV_VCONTROL_VIDEN); ret = wait_for(!(CRTC_READ(PV_V_CONTROL) & PV_VCONTROL_VIDEN), 1); @@ -403,15 +397,31 @@ static void vc4_crtc_atomic_disable(struct drm_crtc *crtc, mdelay(20); - if (vc4_encoder->post_crtc_disable) + if (vc4_encoder && vc4_encoder->post_crtc_disable) vc4_encoder->post_crtc_disable(encoder); vc4_crtc_pixelvalve_reset(crtc); - vc4_hvs_atomic_disable(crtc, old_state); + vc4_hvs_stop_channel(dev, channel); - if (vc4_encoder->post_crtc_powerdown) + if (vc4_encoder && vc4_encoder->post_crtc_powerdown) vc4_encoder->post_crtc_powerdown(encoder); + return 0; +} + +static void vc4_crtc_atomic_disable(struct drm_crtc *crtc, + struct drm_crtc_state *old_state) +{ + struct vc4_crtc_state *old_vc4_state = to_vc4_crtc_state(old_state); + struct drm_device *dev = crtc->dev; + + require_hvs_enabled(dev); + + /* Disable vblank irq handling before crtc is disabled. */ + drm_crtc_vblank_off(crtc); + + vc4_crtc_disable(crtc, old_vc4_state->assigned_channel); + /* * Make sure we issue a vblank event after disabling the CRTC if * someone was waiting it. -- git-series 0.9.1 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel