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drm/rockchip: dsi: add to get dsc info from dts

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Change-Id: Idbf1503e775a26d24ba1965495d531e30b7cc6c6
Signed-off-by: Guochun Huang <hero.huang@rock-chips.com>
Signed-off-by: Sandy Huang <hjc@rock-chips.com>
This commit is contained in:
Guochun Huang
2021-10-22 08:26:26 +00:00
committed by Tao Huang
parent 131a63013b
commit a124131bab
1 changed files with 98 additions and 0 deletions
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98
drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
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@@ -16,6 +16,7 @@
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <drm/drm_dsc.h>
#include <video/mipi_display.h>
#include <uapi/linux/videodev2.h>
#include <drm/bridge/dw_mipi_dsi.h>
@@ -212,6 +213,12 @@ enum soc_type {
RK3568,
};
struct cmd_header {
u8 cmd_type;
u8 delay;
u8 payload_length;
};
struct rockchip_dw_dsi_chip_data {
u32 reg;
@@ -239,6 +246,17 @@ struct dw_mipi_dsi_rockchip {
void __iomem *base;
int id;
bool c_option;
bool scrambling_en;
unsigned int slice_width;
unsigned int slice_height;
unsigned int slice_per_pkt;
bool block_pred_enable;
bool dsc_enable;
u8 version_major;
u8 version_minor;
struct drm_dsc_picture_parameter_set *pps;
struct regmap *grf_regmap;
struct clk *pllref_clk;
struct clk *pclk;
@@ -758,6 +776,20 @@ dw_mipi_dsi_encoder_atomic_check(struct drm_encoder *encoder,
if (dsi->id && dsi->cdata->soc_type == RK3399)
s->output_flags |= ROCKCHIP_OUTPUT_DATA_SWAP;
if (dsi->dsc_enable) {
s->dsc_enable = 1;
s->dsc_sink_cap.version_major = dsi->version_major;
s->dsc_sink_cap.version_minor = dsi->version_minor;
s->dsc_sink_cap.slice_width = dsi->slice_width;
s->dsc_sink_cap.slice_height = dsi->slice_height;
/* only can support rgb888 panel now */
s->dsc_sink_cap.target_bits_per_pixel_x16 = 8 << 4;
s->dsc_sink_cap.block_pred = dsi->block_pred_enable;
s->dsc_sink_cap.native_420 = 0;
memcpy(&s->pps, dsi->pps, sizeof(struct drm_dsc_picture_parameter_set));
}
return 0;
}
@@ -855,6 +887,70 @@ static struct device
return NULL;
}
static int dw_mipi_dsi_get_dsc_info_from_sink(struct dw_mipi_dsi_rockchip *dsi,
struct drm_panel *panel,
struct drm_bridge *bridge)
{
struct drm_dsc_picture_parameter_set *pps = NULL;
struct device_node *np = NULL;
struct cmd_header *header;
const void *data;
char *d;
uint8_t *dsc_packed_pps;
int len;
if (!panel && !bridge)
return -ENODEV;
if (panel)
np = panel->dev->of_node;
else
np = bridge->of_node;
dsi->c_option = of_property_read_bool(np, "phy-c-option");
dsi->scrambling_en = of_property_read_bool(np, "scrambling-enable");
dsi->dsc_enable = of_property_read_bool(np, "compressed-data");
dsi->block_pred_enable = of_property_read_bool(np, "blk-pred-enable");
of_property_read_u32(np, "slice-width", &dsi->slice_width);
of_property_read_u32(np, "slice-height", &dsi->slice_height);
of_property_read_u32(np, "slice-per-pkt", &dsi->slice_per_pkt);
of_property_read_u8(np, "version-major", &dsi->version_major);
of_property_read_u8(np, "version-minor", &dsi->version_minor);
data = of_get_property(np, "panel-init-sequence", &len);
if (!data)
return -EINVAL;
d = devm_kmemdup(dsi->dev, data, len, GFP_KERNEL);
if (!d)
return -ENOMEM;
while (len > sizeof(*header)) {
header = (struct cmd_header *)d;
d += sizeof(*header);
len -= sizeof(*header);
if (header->payload_length > len)
return -EINVAL;
if (header->cmd_type == MIPI_DSI_PICTURE_PARAMETER_SET) {
dsc_packed_pps = devm_kmemdup(dsi->dev, d,
header->payload_length, GFP_KERNEL);
if (!dsc_packed_pps)
return -ENOMEM;
pps = (struct drm_dsc_picture_parameter_set *)dsc_packed_pps;
break;
}
d += header->payload_length;
len -= header->payload_length;
}
dsi->pps = pps;
return 0;
}
static int dw_mipi_dsi_rockchip_bind(struct device *dev,
struct device *master,
void *data)
@@ -907,6 +1003,8 @@ static int dw_mipi_dsi_rockchip_bind(struct device *dev,
if (ret)
dev_err(dsi->dev, "failed to find panel\n");
dw_mipi_dsi_get_dsc_info_from_sink(dsi, dsi->panel, NULL);
dsi->sub_dev.connector = dw_mipi_dsi_get_connector(dsi->dmd);
if (dsi->sub_dev.connector) {
dsi->sub_dev.of_node = dev->of_node;