[RFC PATCH v3 3/6] dt-binding: tegra: Add VI and CSI bindings
From: Sowjanya Komatineni <skomatineni@nvidia.com>
Date: 2020-02-14 18:24:05
Also in:
linux-clk, linux-media, linux-tegra, lkml
Subsystem:
drm drivers, drm drivers and misc gpu patches, open firmware and flattened device tree bindings, the rest · Maintainers:
David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Tegra contains VI controller which can support up to 6 MIPI CSI camera sensors. Each Tegra CSI port from CSI unit can be one-to-one mapper to VI channel and can capture from an external camera sensor or from built-in test pattern generator. This patch adds dt-bindings for Tegra VI and CSI. Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com> --- .../display/tegra/nvidia,tegra20-host1x.txt | 55 ++++++++++++++++++---- 1 file changed, 47 insertions(+), 8 deletions(-)
diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt
index 9999255ac5b6..3d0ed540a646 100644
--- a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt
+++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt@@ -40,14 +40,24 @@ of the following host1x client modules: Required properties: - compatible: "nvidia,tegra<chip>-vi" - - reg: Physical base address and length of the controller's registers. + - reg: Physical base address and length of the controller registers. - interrupts: The interrupt outputs from the controller. - - clocks: Must contain one entry, for the module clock. + - clocks: Must contain an entry for the module clock "vi" See ../clocks/clock-bindings.txt for details. - resets: Must contain an entry for each entry in reset-names. See ../reset/reset.txt for details. - - reset-names: Must include the following entries: - - vi + - reset-names: Must include the entry "vi" + + Tegra210 has CSI part of VI sharing same host interface and register + space. So, VI device node should have CSI child node. + + - csi: mipi csi interface to vi + + Required properties: + - compatible: "nvidia,tegra<chip>-csi" + - reg: Physical base address and length of the controller registers. + - clocks: Must contain entries csi, cilab, cilcd, cile clocks. + See ../clocks/clock-bindings.txt for details. - epp: encoder pre-processor
@@ -310,12 +320,41 @@ Example: }; vi { - compatible = "nvidia,tegra20-vi"; - reg = <0x54080000 0x00040000>; + compatible = "nvidia,tegra210-vi"; + reg = <0x0 0x54080000 0x0 0x700>; interrupts = <0 69 0x04>; - clocks = <&tegra_car TEGRA20_CLK_VI>; - resets = <&tegra_car 100>; + assigned-clocks = <&tegra_car TEGRA210_CLK_VI>; + assigned-clock-parents = <&tegra_car TEGRA210_CLK_PLL_C4_OUT0>; + clocks = <&tegra_car TEGRA210_CLK_VI>; + clock-names = "vi"; + resets = <&tegra_car 20>; reset-names = "vi"; + + #address-cells = <2>; + #size-cells = <2>; + + ranges = <0x0 0x54080808 0x0 0x54080808 0x0 0x2000>; + + csi@0x54080838 { + compatible = "nvidia,tegra210-csi"; + reg = <0x0 0x54080838 0x0 0x2000>; + status = "disabled"; + assigned-clocks = <&tegra_car TEGRA210_CLK_CILAB>, + <&tegra_car TEGRA210_CLK_CILCD>, + <&tegra_car TEGRA210_CLK_CILE>; + assigned-clock-parents = <&tegra_car TEGRA210_CLK_PLL_P>, + <&tegra_car TEGRA210_CLK_PLL_P>, + <&tegra_car TEGRA210_CLK_PLL_P>; + assigned-clock-rates = <102000000>, + <102000000>, + <102000000>; + clocks = <&tegra_car TEGRA210_CLK_CSI>, + <&tegra_car TEGRA210_CLK_CILAB>, + <&tegra_car TEGRA210_CLK_CILCD>, + <&tegra_car TEGRA210_CLK_CILE>; + clock-names = "csi", "cilab", "cilcd", "cile"; + }; + }; epp {
--
2.7.4