Hi Jagan, InĀ your patch U-boot users must add a new file for each new Rockchip SoC.
With the VOP2 introduction the VOP1 structures and functions are frozen/stabilized. My proposal would be to use a file simular to Linux rockchip_vop_reg.c and port it to U-boot as is done in the manufacturer tree. Together with a simple basic rockchip_vop.c to start with. Not sure if we need a kind of DRM frame work. Question: What do the U-boot maintainers think of this DRM implementation in use by Rockchip. Is that a route that useful for mainline? Let me know your ideas. Johan On 12/11/23 09:59, Jagan Teki wrote: > From: Jagan Teki <ja...@edgeble.ai> > > Add support for Rockchip RK3328 VOP. > > Signed-off-by: Jagan Teki <ja...@edgeble.ai> > --- > drivers/video/rockchip/Makefile | 1 + > drivers/video/rockchip/rk3328_vop.c | 66 +++++++++++++++++++++++++++++ > 2 files changed, 67 insertions(+) > create mode 100644 drivers/video/rockchip/rk3328_vop.c > > diff --git a/drivers/video/rockchip/Makefile b/drivers/video/rockchip/Makefile > index 4991303c73..f55beceebf 100644 > --- a/drivers/video/rockchip/Makefile > +++ b/drivers/video/rockchip/Makefile > @@ -6,6 +6,7 @@ > ifdef CONFIG_VIDEO_ROCKCHIP > obj-y += rk_vop.o > obj-$(CONFIG_ROCKCHIP_RK3288) += rk3288_vop.o > +obj-$(CONFIG_ROCKCHIP_RK3328) += rk3328_vop.o > obj-$(CONFIG_ROCKCHIP_RK3399) += rk3399_vop.o > obj-$(CONFIG_DISPLAY_ROCKCHIP_EDP) += rk_edp.o > obj-$(CONFIG_DISPLAY_ROCKCHIP_LVDS) += rk_lvds.o > diff --git a/drivers/video/rockchip/rk3328_vop.c > b/drivers/video/rockchip/rk3328_vop.c > new file mode 100644 > index 0000000000..2512314e64 > --- /dev/null > +++ b/drivers/video/rockchip/rk3328_vop.c > @@ -0,0 +1,66 @@ > +// SPDX-License-Identifier: GPL-2.0+ > +/* > + * Copyright (c) 2023 Edgeble AI Technologies Pvt. Ltd. > + */ > + > +#include <common.h> > +#include <dm.h> > +#include <video.h> > +#include <asm/io.h> > +#include "rk_vop.h" > + > +DECLARE_GLOBAL_DATA_PTR; > + > +static void rk3328_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; > + > + switch (mode) { > + case VOP_MODE_HDMI: > + clrsetbits_le32(®s->dsp_ctrl1, > + M_RK3399_DSP_HDMI_POL, > + V_RK3399_DSP_HDMI_POL(polarity)); > + break; > + default: > + debug("%s: unsupported output mode %x\n", __func__, mode); > + } > +} > + > +static int rk3328_vop_probe(struct udevice *dev) > +{ > + /* Before relocation we don't need to do anything */ > + if (!(gd->flags & GD_FLG_RELOC)) > + return 0; > + > + return rk_vop_probe(dev); > +} > + > +struct rkvop_driverdata rk3328_driverdata = { > + .dsp_offset = 0x490, > + .win_offset = 0xd0, > + .features = VOP_FEATURE_OUTPUT_10BIT, > + .set_pin_polarity = rk3328_set_pin_polarity, > +}; > + > +static const struct udevice_id rk3328_vop_ids[] = { > + { > + .compatible = "rockchip,rk3328-vop", > + .data = (ulong)&rk3328_driverdata > + }, > + { /* sentile */ } > +}; > + > +static const struct video_ops rk3328_vop_ops = { > +}; > + > +U_BOOT_DRIVER(rk3328_vop) = { > + .name = "rk3328_vop", > + .id = UCLASS_VIDEO, > + .of_match = rk3328_vop_ids, > + .ops = &rk3328_vop_ops, > + .bind = rk_vop_bind, > + .probe = rk3328_vop_probe, > + .priv_auto = sizeof(struct rk_vop_priv), > +};