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drm/bridge: maxim-max96755f: add support dsi rx lane map

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Change-Id: I3a2b5d4c6e0070137b398b3b379252ef62901610
Signed-off-by: Guochun Huang <hero.huang@rock-chips.com>
This commit is contained in:
Guochun Huang
2023-04-14 08:46:37 +00:00
committed by Tao Huang
parent 4c1222a138
commit 453536f7f3
1 changed files with 34 additions and 3 deletions
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37
drivers/gpu/drm/bridge/maxim-max96755f.c
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@@ -39,6 +39,8 @@ struct max96755f_bridge {
bool dv_swp_ab;
bool dpi_deskew_en;
bool split_mode;
u32 dsi_lane_map[4];
struct {
struct gpio_desc *gpio;
int irq;
@@ -196,6 +198,7 @@ static void max96755f_mipi_dsi_rx_config(struct max96755f_bridge *ser)
struct drm_display_mode *mode = &ser->mode;
u32 hfp, hsa, hbp, hact;
u32 vact, vsa, vfp, vbp;
u8 lane_map;
regmap_update_bits(ser->regmap, 0x330, MIPI_RX_RESET,
FIELD_PREP(MIPI_RX_RESET, 1));
@@ -207,6 +210,12 @@ static void max96755f_mipi_dsi_rx_config(struct max96755f_bridge *ser)
regmap_update_bits(ser->regmap, 0x331, NUM_LANES,
FIELD_PREP(NUM_LANES, ser->num_lanes - 1));
lane_map = (ser->dsi_lane_map[0] & 0xff) << 4 |
(ser->dsi_lane_map[1] & 0xff) << 6 |
(ser->dsi_lane_map[2] & 0xff) << 0 |
(ser->dsi_lane_map[3] & 0xff) << 2;
regmap_write(ser->regmap, 0x332, lane_map);
if (!ser->dpi_deskew_en)
return;
@@ -405,17 +414,39 @@ static const struct drm_bridge_funcs max96755f_bridge_funcs = {
static int max96755f_link_parse(struct max96755f_bridge *ser)
{
struct device *dev = ser->dev;
struct device_node *np = dev->of_node;
struct device *parent = dev->parent;
struct device_node *child;
u32 val;
int ret = 0;
unsigned int nr = 0;
int i, len;
ser->dpi_deskew_en = of_property_read_bool(dev->of_node, "dpi-deskew-en");
ser->dv_swp_ab = of_property_read_bool(dev->of_node, "vd-swap-ab");
ser->dpi_deskew_en = of_property_read_bool(np, "dpi-deskew-en");
ser->dv_swp_ab = of_property_read_bool(np, "vd-swap-ab");
if (!of_property_read_u32(dev->of_node, "dsi,lanes", &val))
if (!of_property_read_u32(np, "dsi,lanes", &val))
ser->num_lanes = val;
else
ser->num_lanes = 4;
for (i = 0; i < ser->num_lanes; i++)
ser->dsi_lane_map[i] = i;
if (of_find_property(np, "maxim,dsi-lane-map", &len)) {
len /= sizeof(u32);
if (ser->num_lanes != len) {
dev_err(dev, "invalid number of lane map\n");
return -EINVAL;
}
ret = of_property_read_u32_array(np, "maxim,dsi-lane-map",
ser->dsi_lane_map, len);
if (ret) {
dev_err(dev, "get dsi lane map failed\n");
return -EINVAL;
}
}
for_each_available_child_of_node(parent->of_node, child) {
if (!of_find_property(child, "reg", NULL))