Hi,
On Tue, May 21, 2024 at 06:58:10PM GMT, keith wrote:
> Add the ROCKCHIP inno hdmi driver that uses the Inno DesignWare
> HDMI TX bridge and remove the old separate one.
>
> Signed-off-by: keith <keith.zhao@xxxxxxxxxxxxxxxx>
> ---
> drivers/gpu/drm/rockchip/Kconfig | 1 +
> drivers/gpu/drm/rockchip/Makefile | 2 +-
> drivers/gpu/drm/rockchip/inno_hdmi-rockchip.c | 517 ++++++++
> .../{inno_hdmi.h => inno_hdmi-rockchip.h} | 45 -
> drivers/gpu/drm/rockchip/inno_hdmi.c | 1073 -----------------
> 5 files changed, 519 insertions(+), 1119 deletions(-)
> create mode 100644 drivers/gpu/drm/rockchip/inno_hdmi-rockchip.c
> rename drivers/gpu/drm/rockchip/{inno_hdmi.h => inno_hdmi-rockchip.h} (85%)
> delete mode 100644 drivers/gpu/drm/rockchip/inno_hdmi.c
>
> diff --git a/drivers/gpu/drm/rockchip/Kconfig b/drivers/gpu/drm/rockchip/Kconfig
> index 1bf3e2829cd0..cc6cfd5a30d6 100644
> --- a/drivers/gpu/drm/rockchip/Kconfig
> +++ b/drivers/gpu/drm/rockchip/Kconfig
> @@ -74,6 +74,7 @@ config ROCKCHIP_DW_MIPI_DSI
>
> config ROCKCHIP_INNO_HDMI
> bool "Rockchip specific extensions for Innosilicon HDMI"
> + select DRM_INNO_HDMI
> help
> This selects support for Rockchip SoC specific extensions
> for the Innosilicon HDMI driver. If you want to enable
> diff --git a/drivers/gpu/drm/rockchip/Makefile b/drivers/gpu/drm/rockchip/Makefile
> index 3ff7b21c0414..4b2d0cba8db3 100644
> --- a/drivers/gpu/drm/rockchip/Makefile
> +++ b/drivers/gpu/drm/rockchip/Makefile
> @@ -12,7 +12,7 @@ rockchipdrm-$(CONFIG_ROCKCHIP_ANALOGIX_DP) += analogix_dp-rockchip.o
> rockchipdrm-$(CONFIG_ROCKCHIP_CDN_DP) += cdn-dp-core.o cdn-dp-reg.o
> rockchipdrm-$(CONFIG_ROCKCHIP_DW_HDMI) += dw_hdmi-rockchip.o
> rockchipdrm-$(CONFIG_ROCKCHIP_DW_MIPI_DSI) += dw-mipi-dsi-rockchip.o
> -rockchipdrm-$(CONFIG_ROCKCHIP_INNO_HDMI) += inno_hdmi.o
> +rockchipdrm-$(CONFIG_ROCKCHIP_INNO_HDMI) += inno_hdmi-rockchip.o
> rockchipdrm-$(CONFIG_ROCKCHIP_LVDS) += rockchip_lvds.o
> rockchipdrm-$(CONFIG_ROCKCHIP_RGB) += rockchip_rgb.o
> rockchipdrm-$(CONFIG_ROCKCHIP_RK3066_HDMI) += rk3066_hdmi.o
> diff --git a/drivers/gpu/drm/rockchip/inno_hdmi-rockchip.c b/drivers/gpu/drm/rockchip/inno_hdmi-rockchip.c
> new file mode 100644
> index 000000000000..69d0e913e13b
> --- /dev/null
> +++ b/drivers/gpu/drm/rockchip/inno_hdmi-rockchip.c
> @@ -0,0 +1,517 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +/*
> + * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
> + * Zheng Yang <zhengyang@xxxxxxxxxxxxxx>
> + * Yakir Yang <ykk@xxxxxxxxxxxxxx>
> + */
> +
> +#include <linux/irq.h>
> +#include <linux/clk.h>
> +#include <linux/delay.h>
> +#include <linux/err.h>
> +#include <linux/hdmi.h>
> +#include <linux/mod_devicetable.h>
> +#include <linux/module.h>
> +#include <linux/mutex.h>
> +#include <linux/platform_device.h>
> +
> +#include <drm/bridge/inno_hdmi.h>
> +#include <drm/drm_atomic.h>
> +#include <drm/drm_atomic_helper.h>
> +#include <drm/drm_edid.h>
> +#include <drm/drm_of.h>
> +#include <drm/drm_probe_helper.h>
> +#include <drm/drm_simple_kms_helper.h>
> +
> +#include "rockchip_drm_drv.h"
> +
> +#include "inno_hdmi-rockchip.h"
> +
> +#define INNO_HDMI_MIN_TMDS_CLOCK 25000000U
> +
> +struct rk_inno_hdmi {
> + struct rockchip_encoder encoder;
> + struct inno_hdmi inno_hdmi;
> + struct clk *pclk;
> + struct clk *refclk;
> +};
> +
> +static struct inno_hdmi *rk_encoder_to_inno_hdmi(struct drm_encoder *encoder)
> +{
> + struct rockchip_encoder *rkencoder = to_rockchip_encoder(encoder);
> + struct rk_inno_hdmi *rk_hdmi = container_of(rkencoder, struct rk_inno_hdmi, encoder);
> +
> + return &rk_hdmi->inno_hdmi;
> +}
> +
> +enum {
> + CSC_RGB_0_255_TO_ITU601_16_235_8BIT,
> + CSC_RGB_0_255_TO_ITU709_16_235_8BIT,
> + CSC_RGB_0_255_TO_RGB_16_235_8BIT,
> +};
> +
> +static const char coeff_csc[][24] = {
> + /*
> + * RGB2YUV:601 SD mode:
> + * Cb = -0.291G - 0.148R + 0.439B + 128
> + * Y = 0.504G + 0.257R + 0.098B + 16
> + * Cr = -0.368G + 0.439R - 0.071B + 128
> + */
> + {
> + 0x11, 0x5f, 0x01, 0x82, 0x10, 0x23, 0x00, 0x80,
> + 0x02, 0x1c, 0x00, 0xa1, 0x00, 0x36, 0x00, 0x1e,
> + 0x11, 0x29, 0x10, 0x59, 0x01, 0x82, 0x00, 0x80
> + },
> + /*
> + * RGB2YUV:709 HD mode:
> + * Cb = - 0.338G - 0.101R + 0.439B + 128
> + * Y = 0.614G + 0.183R + 0.062B + 16
> + * Cr = - 0.399G + 0.439R - 0.040B + 128
> + */
> + {
> + 0x11, 0x98, 0x01, 0xc1, 0x10, 0x28, 0x00, 0x80,
> + 0x02, 0x74, 0x00, 0xbb, 0x00, 0x3f, 0x00, 0x10,
> + 0x11, 0x5a, 0x10, 0x67, 0x01, 0xc1, 0x00, 0x80
> + },
> + /*
> + * RGB[0:255]2RGB[16:235]:
> + * R' = R x (235-16)/255 + 16;
> + * G' = G x (235-16)/255 + 16;
> + * B' = B x (235-16)/255 + 16;
> + */
> + {
> + 0x00, 0x00, 0x03, 0x6F, 0x00, 0x00, 0x00, 0x10,
> + 0x03, 0x6F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10,
> + 0x00, 0x00, 0x00, 0x00, 0x03, 0x6F, 0x00, 0x10
> + },
> +};
> +
> +static struct inno_hdmi_phy_config rk3036_hdmi_phy_configs[] = {
> + { 74250000, 0x3f, 0xbb },
> + { 165000000, 0x6f, 0xbb },
> + { ~0UL, 0x00, 0x00 }
> +};
> +
> +static struct inno_hdmi_phy_config rk3128_hdmi_phy_configs[] = {
> + { 74250000, 0x3f, 0xaa },
> + { 165000000, 0x5f, 0xaa },
> + { ~0UL, 0x00, 0x00 }
> +};
> +
> +static int inno_hdmi_find_phy_config(struct inno_hdmi *hdmi,
> + unsigned long pixelclk)
> +{
> + const struct inno_hdmi_phy_config *phy_configs = hdmi->plat_data->phy_configs;
> + int i;
> +
> + for (i = 0; phy_configs[i].pixelclock != ~0UL; i++) {
> + if (pixelclk <= phy_configs[i].pixelclock)
> + return i;
> + }
> +
> + DRM_DEV_DEBUG(hdmi->dev, "No phy configuration for pixelclock %lu\n",
> + pixelclk);
> +
> + return -EINVAL;
> +}
> +
> +static void inno_hdmi_standby(struct inno_hdmi *hdmi)
> +{
> + inno_hdmi_sys_power(hdmi, false);
> +
> + hdmi_writeb(hdmi, HDMI_PHY_DRIVER, 0x00);
> + hdmi_writeb(hdmi, HDMI_PHY_PRE_EMPHASIS, 0x00);
> + hdmi_writeb(hdmi, HDMI_PHY_CHG_PWR, 0x00);
> + hdmi_writeb(hdmi, HDMI_PHY_SYS_CTL, 0x15);
> +};
> +
> +static void inno_hdmi_power_up(struct inno_hdmi *hdmi,
> + unsigned long mpixelclock)
> +{
> + struct inno_hdmi_phy_config *phy_config;
> + int ret = inno_hdmi_find_phy_config(hdmi, mpixelclock);
> +
> + if (ret < 0) {
> + phy_config = hdmi->plat_data->default_phy_config;
> + DRM_DEV_ERROR(hdmi->dev,
> + "Using default phy configuration for TMDS rate %lu",
> + mpixelclock);
> + } else {
> + phy_config = &hdmi->plat_data->phy_configs[ret];
> + }
> +
> + inno_hdmi_sys_power(hdmi, false);
> +
> + hdmi_writeb(hdmi, HDMI_PHY_PRE_EMPHASIS, phy_config->pre_emphasis);
> + hdmi_writeb(hdmi, HDMI_PHY_DRIVER, phy_config->voltage_level_control);
> + hdmi_writeb(hdmi, HDMI_PHY_SYS_CTL, 0x15);
> + hdmi_writeb(hdmi, HDMI_PHY_SYS_CTL, 0x14);
> + hdmi_writeb(hdmi, HDMI_PHY_SYS_CTL, 0x10);
> + hdmi_writeb(hdmi, HDMI_PHY_CHG_PWR, 0x0f);
> + hdmi_writeb(hdmi, HDMI_PHY_SYNC, 0x00);
> + hdmi_writeb(hdmi, HDMI_PHY_SYNC, 0x01);
> +
> + inno_hdmi_sys_power(hdmi, true);
> +};
> +
> +static void inno_hdmi_reset(struct inno_hdmi *hdmi)
> +{
> + u32 val;
> + u32 msk;
> +
> + hdmi_modb(hdmi, HDMI_SYS_CTRL, m_RST_DIGITAL, v_NOT_RST_DIGITAL);
> + udelay(100);
> +
> + hdmi_modb(hdmi, HDMI_SYS_CTRL, m_RST_ANALOG, v_NOT_RST_ANALOG);
> + udelay(100);
> +
> + msk = m_REG_CLK_INV | m_REG_CLK_SOURCE | m_POWER | m_INT_POL;
> + val = v_REG_CLK_INV | v_REG_CLK_SOURCE_SYS | v_PWR_ON | v_INT_POL_HIGH;
> + hdmi_modb(hdmi, HDMI_SYS_CTRL, msk, val);
> +
> + inno_hdmi_standby(hdmi);
> +}
> +
> +static int inno_hdmi_config_video_csc(struct inno_hdmi *hdmi)
> +{
> + struct drm_connector *connector = &hdmi->connector;
> + struct drm_connector_state *conn_state = connector->state;
> + struct inno_hdmi_connector_state *inno_conn_state =
> + to_inno_hdmi_conn_state(conn_state);
> + int c0_c2_change = 0;
> + int csc_enable = 0;
> + int csc_mode = 0;
> + int auto_csc = 0;
> + int value;
> + int i;
> +
> + /* Input video mode is SDR RGB24bit, data enable signal from external */
> + hdmi_writeb(hdmi, HDMI_VIDEO_CONTRL1, v_DE_EXTERNAL |
> + v_VIDEO_INPUT_FORMAT(VIDEO_INPUT_SDR_RGB444));
> +
> + /* Input color hardcode to RGB, and output color hardcode to RGB888 */
> + value = v_VIDEO_INPUT_BITS(VIDEO_INPUT_8BITS) |
> + v_VIDEO_OUTPUT_COLOR(0) |
> + v_VIDEO_INPUT_CSP(0);
> + hdmi_writeb(hdmi, HDMI_VIDEO_CONTRL2, value);
> +
> + if (inno_conn_state->enc_out_format == HDMI_COLORSPACE_RGB) {
> + if (inno_conn_state->rgb_limited_range) {
> + csc_mode = CSC_RGB_0_255_TO_RGB_16_235_8BIT;
> + auto_csc = AUTO_CSC_DISABLE;
> + c0_c2_change = C0_C2_CHANGE_DISABLE;
> + csc_enable = v_CSC_ENABLE;
> +
> + } else {
> + value = v_SOF_DISABLE | v_COLOR_DEPTH_NOT_INDICATED(1);
> + hdmi_writeb(hdmi, HDMI_VIDEO_CONTRL3, value);
> +
> + hdmi_modb(hdmi, HDMI_VIDEO_CONTRL,
> + m_VIDEO_AUTO_CSC | m_VIDEO_C0_C2_SWAP,
> + v_VIDEO_AUTO_CSC(AUTO_CSC_DISABLE) |
> + v_VIDEO_C0_C2_SWAP(C0_C2_CHANGE_DISABLE));
> + return 0;
> + }
> + } else {
> + if (inno_conn_state->colorimetry == HDMI_COLORIMETRY_ITU_601) {
> + if (inno_conn_state->enc_out_format == HDMI_COLORSPACE_YUV444) {
> + csc_mode = CSC_RGB_0_255_TO_ITU601_16_235_8BIT;
> + auto_csc = AUTO_CSC_DISABLE;
> + c0_c2_change = C0_C2_CHANGE_DISABLE;
> + csc_enable = v_CSC_ENABLE;
> + }
> + } else {
> + if (inno_conn_state->enc_out_format == HDMI_COLORSPACE_YUV444) {
> + csc_mode = CSC_RGB_0_255_TO_ITU709_16_235_8BIT;
> + auto_csc = AUTO_CSC_DISABLE;
> + c0_c2_change = C0_C2_CHANGE_DISABLE;
> + csc_enable = v_CSC_ENABLE;
> + }
> + }
> + }
> +
> + for (i = 0; i < 24; i++)
> + hdmi_writeb(hdmi, HDMI_VIDEO_CSC_COEF + i,
> + coeff_csc[csc_mode][i]);
> +
> + value = v_SOF_DISABLE | csc_enable | v_COLOR_DEPTH_NOT_INDICATED(1);
> + hdmi_writeb(hdmi, HDMI_VIDEO_CONTRL3, value);
> + hdmi_modb(hdmi, HDMI_VIDEO_CONTRL, m_VIDEO_AUTO_CSC |
> + m_VIDEO_C0_C2_SWAP, v_VIDEO_AUTO_CSC(auto_csc) |
> + v_VIDEO_C0_C2_SWAP(c0_c2_change));
> +
> + return 0;
> +}
> +
> +static int inno_hdmi_setup(struct inno_hdmi *hdmi,
> + struct drm_display_mode *mode)
> +{
> + struct drm_display_info *display = &hdmi->connector.display_info;
> + unsigned long mpixelclock = mode->clock * 1000;
> +
> + /* Mute video and audio output */
> + hdmi_modb(hdmi, HDMI_AV_MUTE, m_AUDIO_MUTE | m_VIDEO_BLACK,
> + v_AUDIO_MUTE(1) | v_VIDEO_MUTE(1));
> +
> + /* Set HDMI Mode */
> + hdmi_writeb(hdmi, HDMI_HDCP_CTRL,
> + v_HDMI_DVI(display->is_hdmi));
> +
> + inno_hdmi_config_video_timing(hdmi, mode);
> +
> + inno_hdmi_config_video_csc(hdmi);
> +
> + if (display->is_hdmi)
> + inno_hdmi_config_video_avi(hdmi, mode);
> +
> + /*
> + * When IP controller have configured to an accurate video
> + * timing, then the TMDS clock source would be switched to
> + * DCLK_LCDC, so we need to init the TMDS rate to mode pixel
> + * clock rate, and reconfigure the DDC clock.
> + */
> + inno_hdmi_i2c_init(hdmi, mpixelclock);
> +
> + /* Unmute video and audio output */
> + hdmi_modb(hdmi, HDMI_AV_MUTE, m_AUDIO_MUTE | m_VIDEO_BLACK,
> + v_AUDIO_MUTE(0) | v_VIDEO_MUTE(0));
> +
> + inno_hdmi_power_up(hdmi, mpixelclock);
> +
> + return 0;
> +}
>
It's kind of a general comment, but I don't think that's the right
abstraction. You should create a inno_hdmi bridge that allows to
supplement some of the atomic hooks, but not reimplement them entirely
each time.
You can have a look at how dw-hdmi does it for example. Also, why do you
still need the encoder and connectors?
Maxime
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