This commit adds a driver for the RK3399 VOPs capable and all the necessary plumbing to feed the HDMI encoder. For the VOP-big, this correctly tracks the ability to feed 10bit RGB data to the encoder. Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Simon Glass <sjg@chromium.org>master
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/*
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* Copyright (c) 2017 Theobroma Systems Design und Consulting GmbH |
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* Copyright (c) 2015 Google, Inc |
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* Copyright 2014 Rockchip Inc. |
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* |
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* SPDX-License-Identifier: GPL-2.0+ |
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*/ |
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#include <common.h> |
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#include <display.h> |
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#include <dm.h> |
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#include <regmap.h> |
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#include <video.h> |
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#include <asm/hardware.h> |
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#include <asm/io.h> |
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#include "rk_vop.h" |
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DECLARE_GLOBAL_DATA_PTR; |
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static void rk3399_set_pin_polarity(struct udevice *dev, |
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enum vop_modes mode, u32 polarity) |
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{ |
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struct rk_vop_priv *priv = dev_get_priv(dev); |
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struct rk3288_vop *regs = priv->regs; |
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/*
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* The RK3399 VOPs (v3.5 and v3.6) require a per-mode setting of |
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* the polarity configuration (in ctrl1). |
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*/ |
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switch (mode) { |
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case VOP_MODE_HDMI: |
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clrsetbits_le32(®s->dsp_ctrl1, |
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M_RK3399_DSP_HDMI_POL, |
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V_RK3399_DSP_HDMI_POL(polarity)); |
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break; |
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case VOP_MODE_EDP: |
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clrsetbits_le32(®s->dsp_ctrl1, |
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M_RK3399_DSP_EDP_POL, |
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V_RK3399_DSP_EDP_POL(polarity)); |
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break; |
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case VOP_MODE_MIPI: |
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clrsetbits_le32(®s->dsp_ctrl1, |
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M_RK3399_DSP_MIPI_POL, |
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V_RK3399_DSP_MIPI_POL(polarity)); |
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break; |
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case VOP_MODE_LVDS: |
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/* The RK3399 has neither parallel RGB nor LVDS output. */ |
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default: |
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debug("%s: unsupported output mode %x\n", __func__, mode); |
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} |
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} |
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/*
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* Try some common regulators. We should really get these from the |
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* device tree somehow. |
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*/ |
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static const char * const rk3399_regulator_names[] = { |
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"vcc33_lcd" |
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}; |
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static int rk3399_vop_probe(struct udevice *dev) |
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{ |
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/* Before relocation we don't need to do anything */ |
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if (!(gd->flags & GD_FLG_RELOC)) |
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return 0; |
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/* Probe regulators required for the RK3399 VOP */ |
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rk_vop_probe_regulators(dev, rk3399_regulator_names, |
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ARRAY_SIZE(rk3399_regulator_names)); |
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return rk_vop_probe(dev); |
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} |
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struct rkvop_driverdata rk3399_lit_driverdata = { |
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.set_pin_polarity = rk3399_set_pin_polarity, |
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}; |
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struct rkvop_driverdata rk3399_big_driverdata = { |
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.features = VOP_FEATURE_OUTPUT_10BIT, |
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.set_pin_polarity = rk3399_set_pin_polarity, |
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}; |
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static const struct udevice_id rk3399_vop_ids[] = { |
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{ .compatible = "rockchip,rk3399-vop-big", |
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.data = (ulong)&rk3399_big_driverdata }, |
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{ .compatible = "rockchip,rk3399-vop-lit", |
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.data = (ulong)&rk3399_lit_driverdata }, |
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{ } |
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}; |
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static const struct video_ops rk3399_vop_ops = { |
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}; |
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U_BOOT_DRIVER(rk3399_vop) = { |
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.name = "rk3399_vop", |
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.id = UCLASS_VIDEO, |
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.of_match = rk3399_vop_ids, |
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.ops = &rk3399_vop_ops, |
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.bind = rk_vop_bind, |
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.probe = rk3399_vop_probe, |
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.priv_auto_alloc_size = sizeof(struct rk_vop_priv), |
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}; |
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