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u-boot/drivers/video/rockchip/rk3288_vop.c

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SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-06 21:58:06 +00:00
// SPDX-License-Identifier: GPL-2.0+
rockchip: video: refactor rk_vop and split RK3288-specific code off To prepare for adding the RK3399 VOP driver (which shares most of its registers and config logic with the RK3228 VOP), this change refactors the driver and splits the RK3288-specific driver off. The changes in detail are: - introduces a data-structure for chip-specific drivers to register features/callbacks with the common driver: at this time, this is limited to a callback for setting the pin polarities (between the VOP and the encoder modules) and a flag to signal 10bit RGB capability - refactors the probing of regulators into a helper function that can take a list of regulator names to probe and autoset - moves the priv data-structure into a (common) header file to be used by the chip-specific drivers to provide base addresses to the common driver - uses a callback into the chip-specific driver to set pin polarities (replacing the direct register accesses previously used) - splits enabling the output (towards an encoder) into a separate help function withint the common driver Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-31 15:59:30 +00:00
/*
* Copyright (c) 2017 Theobroma Systems Design und Consulting GmbH
* Copyright (c) 2015 Google, Inc
* Copyright 2014 Rockchip Inc.
*/
#include <common.h>
#include <display.h>
#include <dm.h>
#include <regmap.h>
#include <syscon.h>
#include <video.h>
#include <asm/io.h>
rockchip: use 'arch-rockchip' as header file path Rockchip use 'arch-rockchip' instead of arch-$(SOC) as common header file path, so that we can get the correct path directly. Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-03-28 03:01:23 +00:00
#include <asm/arch-rockchip/clock.h>
#include <asm/arch-rockchip/grf_rk3288.h>
#include <asm/arch-rockchip/hardware.h>
rockchip: video: refactor rk_vop and split RK3288-specific code off To prepare for adding the RK3399 VOP driver (which shares most of its registers and config logic with the RK3228 VOP), this change refactors the driver and splits the RK3288-specific driver off. The changes in detail are: - introduces a data-structure for chip-specific drivers to register features/callbacks with the common driver: at this time, this is limited to a callback for setting the pin polarities (between the VOP and the encoder modules) and a flag to signal 10bit RGB capability - refactors the probing of regulators into a helper function that can take a list of regulator names to probe and autoset - moves the priv data-structure into a (common) header file to be used by the chip-specific drivers to provide base addresses to the common driver - uses a callback into the chip-specific driver to set pin polarities (replacing the direct register accesses previously used) - splits enabling the output (towards an encoder) into a separate help function withint the common driver Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-31 15:59:30 +00:00
#include "rk_vop.h"
DECLARE_GLOBAL_DATA_PTR;
static void rk3288_set_pin_polarity(struct udevice *dev,
enum vop_modes mode, u32 polarity)
{
struct rk_vop_priv *priv = dev_get_priv(dev);
struct rk3288_vop *regs = priv->regs;
/* The RK3328 VOP (v3.1) has its polarity configuration in ctrl0 */
clrsetbits_le32(&regs->dsp_ctrl0,
M_DSP_DCLK_POL | M_DSP_DEN_POL |
M_DSP_VSYNC_POL | M_DSP_HSYNC_POL,
V_DSP_PIN_POL(polarity));
}
static void rk3288_set_io_vsel(struct udevice *dev)
{
struct rk3288_grf *grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
/* lcdc(vop) iodomain select 1.8V */
rk_setreg(&grf->io_vsel, 1 << 0);
}
/*
* Try some common regulators. We should really get these from the
* device tree somehow.
*/
static const char * const rk3288_regulator_names[] = {
"vcc18_lcd",
"VCC18_LCD",
"vdd10_lcd_pwren_h",
"vdd10_lcd",
"VDD10_LCD",
"vcc33_lcd"
};
static int rk3288_vop_probe(struct udevice *dev)
{
/* Before relocation we don't need to do anything */
if (!(gd->flags & GD_FLG_RELOC))
return 0;
/* Set the LCDC(vop) iodomain to 1.8V */
rk3288_set_io_vsel(dev);
/* Probe regulators required for the RK3288 VOP */
rk_vop_probe_regulators(dev, rk3288_regulator_names,
ARRAY_SIZE(rk3288_regulator_names));
return rk_vop_probe(dev);
}
rockchip: video: Add remove() methods Add remove() methods for EDP and VOP so that U-Boot can shut down the video on exit. This avoids leaving DMA running while booting Linux which can cause problems if Linux uses the frame buffer for something else. It also makes it clear what is needed to shut down video. While we are here, make rkvop_enable() static. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de> Squashed in 'rockchip: video: fix taking the VOP device out of standby': Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-05-31 23:57:28 +00:00
static int rk_vop_remove(struct udevice *dev)
{
struct rk_vop_priv *priv = dev_get_priv(dev);
struct rk3288_vop *regs = priv->regs;
setbits_le32(&regs->sys_ctrl, V_STANDBY_EN(1));
/* wait frame complete (60Hz) to enter standby */
mdelay(17);
return 0;
}
rockchip: video: refactor rk_vop and split RK3288-specific code off To prepare for adding the RK3399 VOP driver (which shares most of its registers and config logic with the RK3228 VOP), this change refactors the driver and splits the RK3288-specific driver off. The changes in detail are: - introduces a data-structure for chip-specific drivers to register features/callbacks with the common driver: at this time, this is limited to a callback for setting the pin polarities (between the VOP and the encoder modules) and a flag to signal 10bit RGB capability - refactors the probing of regulators into a helper function that can take a list of regulator names to probe and autoset - moves the priv data-structure into a (common) header file to be used by the chip-specific drivers to provide base addresses to the common driver - uses a callback into the chip-specific driver to set pin polarities (replacing the direct register accesses previously used) - splits enabling the output (towards an encoder) into a separate help function withint the common driver Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-31 15:59:30 +00:00
struct rkvop_driverdata rk3288_driverdata = {
.features = VOP_FEATURE_OUTPUT_10BIT,
.set_pin_polarity = rk3288_set_pin_polarity,
};
static const struct udevice_id rk3288_vop_ids[] = {
{ .compatible = "rockchip,rk3288-vop",
.data = (ulong)&rk3288_driverdata },
{ }
};
static const struct video_ops rk3288_vop_ops = {
};
U_BOOT_DRIVER(rk_vop) = {
.name = "rk3288_vop",
.id = UCLASS_VIDEO,
.of_match = rk3288_vop_ids,
.ops = &rk3288_vop_ops,
.bind = rk_vop_bind,
.probe = rk3288_vop_probe,
rockchip: video: Add remove() methods Add remove() methods for EDP and VOP so that U-Boot can shut down the video on exit. This avoids leaving DMA running while booting Linux which can cause problems if Linux uses the frame buffer for something else. It also makes it clear what is needed to shut down video. While we are here, make rkvop_enable() static. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de> Squashed in 'rockchip: video: fix taking the VOP device out of standby': Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-05-31 23:57:28 +00:00
.remove = rk_vop_remove,
rockchip: video: refactor rk_vop and split RK3288-specific code off To prepare for adding the RK3399 VOP driver (which shares most of its registers and config logic with the RK3228 VOP), this change refactors the driver and splits the RK3288-specific driver off. The changes in detail are: - introduces a data-structure for chip-specific drivers to register features/callbacks with the common driver: at this time, this is limited to a callback for setting the pin polarities (between the VOP and the encoder modules) and a flag to signal 10bit RGB capability - refactors the probing of regulators into a helper function that can take a list of regulator names to probe and autoset - moves the priv data-structure into a (common) header file to be used by the chip-specific drivers to provide base addresses to the common driver - uses a callback into the chip-specific driver to set pin polarities (replacing the direct register accesses previously used) - splits enabling the output (towards an encoder) into a separate help function withint the common driver Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-31 15:59:30 +00:00
.priv_auto_alloc_size = sizeof(struct rk_vop_priv),
};
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