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Thu, 15 Mar 2018 19:59:34 -0700 (PDT) Received: from amstan-desktop.mtv.corp.google.com ([2620:0:1000:1501:fc25:2d9b:94b3:3540]) by smtp.gmail.com with ESMTPSA id y3sm10736554pgc.81.2018.03.15.19.59.33 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 15 Mar 2018 19:59:34 -0700 (PDT) From: Alexandru M Stan To: David Airlie , Rob Herring , Mark Rutland , Archit Taneja , Andrzej Hajda , Laurent Pinchart , Sean Paul Subject: [PATCH 1/2] dt-bindings: analogix-dp: Add backlight-pwm-passthru Date: Thu, 15 Mar 2018 19:56:58 -0700 Message-Id: <20180316025659.217423-2-amstan@chromium.org> X-Mailer: git-send-email 2.13.5 In-Reply-To: <20180316025659.217423-1-amstan@chromium.org> References: <20180316025659.217423-1-amstan@chromium.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180315_195946_107627_82817BD7 X-CRM114-Status: GOOD ( 10.53 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Thierry Escande , Heiko Stuebner , briannorris@chromium.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, dianders@chromium.org, linux-rockchip@lists.infradead.org, Jeffy Chen , Enric Balletbo i Serra , marcheu@chromium.org, hoegsberg@chromium.org, Alexandru M Stan MIME-Version: 1.0 Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Documentation for the optional backlight-pwm-passthru property. Tells the EDP panel to folow the input pwm frequency instead of generating its own. Signed-off-by: Alexandru M Stan Reviewed-by: Archit Taneja --- Documentation/devicetree/bindings/display/bridge/analogix_dp.txt | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/display/bridge/analogix_dp.txt b/Documentation/devicetree/bindings/display/bridge/analogix_dp.txt index 0c7473dd0e51..3c15242f6ce3 100644 --- a/Documentation/devicetree/bindings/display/bridge/analogix_dp.txt +++ b/Documentation/devicetree/bindings/display/bridge/analogix_dp.txt @@ -23,6 +23,10 @@ Required properties for dp-controller: from general PHY binding: Should be "dp". Optional properties for dp-controller: + -backlight-pwm-passthru: + Directly pass the PWM frequency applied to the BL_PWM_DIM + pin to the backlight current source. Done via + EDP_BACKLIGHT_MODE_SET_REGISTER on DPCD. -force-hpd: Indicate driver need force hpd when hpd detect failed, this is used for some eDP screen which don't have hpd signal.