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b=TafLl60RFCABroHDCOBa368pNxNyVHdJoixcAHREGv5tdTW05sW3+fHSNFphz3Eupl EcytJ3ZMAt5uHzcMC+fljI9KuUGp+At6njz39f6phweKnGLwgkWsU/CccGDzbr3HhBqm 2Jepf8bpX5tzKIdyhimxZIKHZX15rPTKDC7CcDpLQmJbu1bXcpnZt2qTqfjKvrL+ZU7p uaniTt1xrt255rbk6dCj0UfGanVBOIQhSCFUwmbbp83M6/yzTWYYmWKDFHZvMCz9w9pT rI10LYUPQu22Fmy6FzVbNYN7lmvmuvYF2/fvf1JRgfDTq40FdJ4lhpv7ev0JGkGiymnY tklQ== X-Gm-Message-State: APjAAAUGydd9RoBVHEQwI2PdbGrh37PVpBkYNxu0D694GSwDP7QWOauH dvJdJDQ32Nb1p4kunLBkSrgDwA== X-Google-Smtp-Source: APXvYqwarIcoctYERt192q6UgAo80DnvoKyoR+ep7xtU5CxnXWO+8jwnxPLBPxi0DiXXn5ekghGk2Q== X-Received: by 2002:a17:902:b43:: with SMTP id 61mr64908196plq.83.1554139074921; Mon, 01 Apr 2019 10:17:54 -0700 (PDT) Received: from tictac2.mtv.corp.google.com ([2620:15c:202:1:24fa:e766:52c9:e3b2]) by smtp.gmail.com with ESMTPSA id y12sm31370112pgq.64.2019.04.01.10.17.53 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 01 Apr 2019 10:17:53 -0700 (PDT) From: Douglas Anderson To: Thierry Reding , Heiko Stuebner , Sean Paul Subject: [PATCH v5 2/7] drm/panel: simple: Add ability to override typical timing Date: Mon, 1 Apr 2019 10:17:19 -0700 Message-Id: <20190401171724.215780-3-dianders@chromium.org> X-Mailer: git-send-email 2.21.0.392.gf8f6787159e-goog In-Reply-To: <20190401171724.215780-1-dianders@chromium.org> References: <20190401171724.215780-1-dianders@chromium.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190401_101755_500152_E9E2B90F X-CRM114-Status: GOOD ( 22.64 ) 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, Rob Herring , Eric Anholt , David Airlie , Jeffy Chen , Doug Anderson , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, Boris Brezillon , Laurent Pinchart , Daniel Vetter , =?utf-8?q?Enric_Balletb=C3=B2?= , =?utf-8?q?S?= =?utf-8?q?t=C3=A9phane_Marchesin?= , Ezequiel Garcia , mka@chromium.org Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Sean Paul This patch adds the ability to override the typical display timing for a given panel. This is useful for devices which have timing constraints that do not apply across the entire display driver (eg: to avoid crosstalk between panel and digitizer on certain laptops). The rules are as follows: - panel must not specify fixed mode (since the override mode will either be the same as the fixed mode, or we'll be unable to check the bounds of the overried) - panel must specify at least one display_timing range which will be used to ensure the override mode fits within its bounds Changes in v2: - Parse the full display-timings node (using the native-mode) (Rob) Changes in v3: - No longer parse display-timings subnode, use panel-timing (Rob) Changes in v4: - Don't add mode from timing if override was specified (Thierry) - Add warning if timing and fixed mode was specified (Thierry) - Don't add fixed mode if timing was specified (Thierry) - Refactor/rename a bit to avoid extra indentation from "if" tests - i should be unsigned (Thierry) - Add annoying WARN_ONs for some cases (Thierry) - Simplify 'No display_timing found' handling (Thierry) - Rename to panel_simple_parse_override_mode() (Thierry) Changes in v5: - Added Heiko's Tested-by Cc: Doug Anderson Cc: Eric Anholt Cc: Heiko Stuebner Cc: Jeffy Chen Cc: Rob Herring Cc: Stéphane Marchesin Cc: Thierry Reding Cc: devicetree@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Signed-off-by: Sean Paul Tested-by: Enric Balletbo i Serra Signed-off-by: Douglas Anderson Tested-by: Heiko Stuebner Reviewed-by: Boris Brezillon Acked-by: Thierry Reding --- drivers/gpu/drm/panel/panel-simple.c | 109 +++++++++++++++++++++++++-- 1 file changed, 104 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c index 9e8218f6a3f2..ad4f4aac2d44 100644 --- a/drivers/gpu/drm/panel/panel-simple.c +++ b/drivers/gpu/drm/panel/panel-simple.c @@ -34,6 +34,7 @@ #include #include