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Tue, 09 Apr 2019 01:42:58 -0700 (PDT) Message-ID: <824430c056a151003d82755a00a06263be1d877e.camel@baylibre.com> Subject: Re: [PATCH 06/11] drm/meson: Add G12A Support for the Overlay video plane From: Jerome Brunet To: Neil Armstrong , dri-devel@lists.freedesktop.org Date: Tue, 09 Apr 2019 10:42:57 +0200 In-Reply-To: <20190325141824.21259-7-narmstrong@baylibre.com> References: <20190325141824.21259-1-narmstrong@baylibre.com> <20190325141824.21259-7-narmstrong@baylibre.com> User-Agent: Evolution 3.30.5 (3.30.5-1.fc29) MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190409_014300_510627_16FA796E X-CRM114-Status: GOOD ( 15.53 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org On Mon, 2019-03-25 at 15:18 +0100, Neil Armstrong wrote: > Amlogic G12A SoC supports the same set of Video Planes, but now > are handled by the new OSD plane blender module. > > This patch uses the same VD1 plane for G12A, using the exact same scaler > and VD11 setup registers, except using the new blender register to > disable the plane. > > Signed-off-by: Neil Armstrong > --- > drivers/gpu/drm/meson/meson_overlay.c | 10 ++++++++-- > 1 file changed, 8 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/meson/meson_overlay.c b/drivers/gpu/drm/meson/meson_overlay.c > index b54a22e483b9..bdbf925ff3e8 100644 > --- a/drivers/gpu/drm/meson/meson_overlay.c > +++ b/drivers/gpu/drm/meson/meson_overlay.c > @@ -516,8 +516,14 @@ static void meson_overlay_atomic_disable(struct drm_plane *plane, > priv->viu.vd1_enabled = false; > > /* Disable VD1 */ > - writel_bits_relaxed(VPP_VD1_POSTBLEND | VPP_VD1_PREBLEND, 0, > - priv->io_base + _REG(VPP_MISC)); > + if (meson_vpu_is_compatible(priv, "amlogic,meson-g12a-vpu")) { > + writel_relaxed(0, priv->io_base + _REG(VD1_BLEND_SRC_CTRL)); > + writel_relaxed(0, priv->io_base + _REG(VD2_BLEND_SRC_CTRL)); > + writel_relaxed(0, priv->io_base + _REG(VD1_IF0_GEN_REG + 0x17b0)); > + writel_relaxed(0, priv->io_base + _REG(VD2_IF0_GEN_REG + 0x17b0)); Is it possible to add a comment explaining this 0x17b0 value ? > + } else > + writel_bits_relaxed(VPP_VD1_POSTBLEND | VPP_VD1_PREBLEND, 0, > + priv->io_base + _REG(VPP_MISC)); > > } > _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic