* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
-*/
+ */
#include <common.h>
#include <errno.h>
if (karo_fdt_flexcan_enabled(blob)) {
if (!is_lvds()) {
debug("Changing LCD to use 23bits only\n");
+ karo_fdt_set_lcd_pins(blob, "lcdif-23bit-pins-a");
+ /* handle legacy alias name */
karo_fdt_set_lcd_pins(blob, "lcdif_23bit_pins_a");
xcvr_status = NULL;
}
} else if (!is_lvds()) {
debug("Changing LCD to use 24bits\n");
+ karo_fdt_set_lcd_pins(blob, "lcdif-24bit-pins-a");
+ /* handle legacy alias name */
karo_fdt_set_lcd_pins(blob, "lcdif_24bit_pins_a");
}
} else {
off = fdt_path_offset(blob, "can1");
if (off >= 0)
fdt_delprop(blob, off, "xceiver-supply");
- if (!is_lvds())
+ if (!is_lvds()) {
+ karo_fdt_set_lcd_pins(blob, "lcdif-24bit-pins-a");
+ /* handle legacy alias name */
karo_fdt_set_lcd_pins(blob, "lcdif_24bit_pins_a");
+ }
}
if (otg_mode && strcasecmp(otg_mode, "host") == 0)
if (xcvr_status) {
debug("Disabling CAN XCVR\n");
- ret = fdt_find_and_setprop(blob, "reg_can_xcvr", "status",
+ ret = fdt_find_and_setprop(blob, "reg-can-xcvr", "status",
xcvr_status, strlen(xcvr_status) + 1, 1);
- if (ret)
+ if (ret == -FDT_ERR_NOTFOUND || ret == -FDT_ERR_BADPATH)
+ ret = fdt_find_and_setprop(blob, "reg_can_xcvr", "status",
+ xcvr_status, strlen(xcvr_status) + 1, 1);
+ if (ret && ret != -FDT_ERR_NOTFOUND && ret != -FDT_ERR_BADPATH)
printf("Failed to disable CAN transceiver switch: %s\n",
fdt_strerror(ret));
}
prop = fdt_getprop(blob, off, "pixelclk-active", NULL);
if (prop)
- fb_mode->sync |= *prop ? 0 : FB_SYNC_CLK_LAT_FALL;
+ fb_mode->sync |= *prop ? FB_SYNC_CLK_LAT_FALL : 0;
return 0;
}
return off;
}
-int karo_fdt_get_fb_mode(void *blob, const char *name, struct fb_videomode *fb_mode)
+static int karo_fdt_check_panel_name(const char *pn, const char *name, int len)
{
- int off = karo_fdt_find_video_timings(blob);
+ const char *endp = pn + len;
- if (off < 0)
- return off;
+ if (len < 0)
+ return 0;
+ while (pn < endp) {
+ if (strcasecmp(pn, name) == 0)
+ return 1;
+ pn += strlen(pn) + 1;
+ }
+ return 0;
+}
+
+static int karo_fdt_find_panel(const void *blob, int off, const char *name)
+{
+ debug("Searching panel '%s'\n", name);
while (off > 0) {
- const char *n, *endp;
- int len, d = 1;
+ const char *pn;
+ int d = 1;
+ int len;
off = fdt_next_node(blob, off, &d);
if (off < 0)
continue;
}
- n = fdt_getprop(blob, off, "panel-name", &len);
- if (!n) {
- n = fdt_get_name(blob, off, NULL);
- if (strcasecmp(n, name) == 0) {
- break;
- }
- } else {
- int found = 0;
-
- for (endp = n + len; n < endp; n += strlen(n) + 1) {
- debug("Checking panel-name '%s'\n", n);
- if (strcasecmp(n, name) == 0) {
- debug("Using node %s @ %04x\n",
- fdt_get_name(blob, off, NULL), off);
- found = 1;
- break;
- }
- }
- if (found)
- break;
- }
+ pn = fdt_get_name(blob, off, NULL);
+ debug("Checking node name '%s'\n", pn);
+ if (strcasecmp(pn, name) == 0)
+ break;
+ pn = fdt_getprop(blob, off, "u-boot,panel-name", &len);
+ if (!pn)
+ continue;
+ if (karo_fdt_check_panel_name(pn, name, len))
+ break;
}
+ if (off > 0)
+ debug("Found LCD panel: '%s' @ off %03x\n",
+ fdt_get_name(blob, off, NULL), off);
+ return off;
+}
+
+int karo_fdt_get_fb_mode(void *blob, const char *name,
+ struct fb_videomode *fb_mode)
+{
+ int off = karo_fdt_find_video_timings(blob);
+
+ if (off < 0)
+ return off;
+ off = karo_fdt_find_panel(blob, off, name);
if (off > 0) {
return fdt_init_fb_mode(blob, off, fb_mode);
}
return ret;
}
-int karo_fdt_update_fb_mode(void *blob, const char *name)
+static const char *karo_panel_timing_props[] = {
+ "clock-frequency",
+ "hactive",
+ "vactive",
+ "hback-porch",
+ "hsync-len",
+ "hfront-porch",
+ "vback-porch",
+ "vsync-len",
+ "vfront-porch",
+ "hsync-active",
+ "vsync-active",
+ "de-active",
+ "pixelclk-active",
+};
+
+static int karo_fixup_panel_timing(void *fdt, int dest, int src)
+{
+ size_t i;
+
+ for (i = 0; i < ARRAY_SIZE(karo_panel_timing_props); i++) {
+ const char *name = karo_panel_timing_props[i];
+ int len;
+ int ret;
+ const void *val;
+ bool restart;
+
+ val = fdt_getprop(fdt, src, name, &len);
+ if (!val) {
+ if (fdt_getprop(fdt, dest, name, NULL)) {
+ printf("Removing '%s' from '%s'\n", name,
+ fdt_get_name(fdt, dest, NULL));
+ fdt_delprop(fdt, dest, name);
+ return -EAGAIN;
+ }
+ continue;
+ }
+ if (len != sizeof(u32)) {
+ printf("Property '%s' has invalid size %u\n",
+ name, len);
+ return -EINVAL;
+ }
+ debug("setting '%s' to <0x%08x>\n", name, be32_to_cpup(val));
+
+ restart = !fdt_getprop(fdt, dest, name, &len);
+ restart |= len != sizeof(u32);
+ /* DTB offsets will change when adding a new property */
+ if (restart) {
+ ret = fdt_increase_size(fdt, len);
+ if (ret) {
+ printf("Failed to increase FDT size by %u: %s\n", len,
+ fdt_strerror(ret));
+ return -ENOMEM;
+ }
+ printf("Adding new property '%s' to '%s'\n",
+ name, fdt_get_name(fdt, dest, NULL));
+ }
+ ret = fdt_setprop_u32(fdt, dest, name, be32_to_cpup(val));
+ if (ret) {
+ printf("Failed to set %s property: %s\n", name,
+ fdt_strerror(ret));
+ return -EINVAL;
+ }
+ if (restart)
+ return -EAGAIN;
+ }
+ return 0;
+}
+
+int karo_fdt_update_fb_mode(void *blob, const char *name,
+ const char *panel_name)
{
+ int ret;
int off = fdt_path_offset(blob, "display");
+ int dt_node;
+ int panel_off = -1;
const char *subnode = "display-timings";
+ size_t i = 0;
- if (off < 0)
+ if (panel_name)
+ panel_off = fdt_path_offset(blob, panel_name);
+
+ if (off < 0 && panel_off < 0)
return off;
if (name == NULL) {
- int ret;
-
debug("Disabling node '%s' at %03x\n",
fdt_get_name(blob, off, NULL), off);
ret = fdt_set_node_status(blob, off, FDT_STATUS_DISABLED, 0);
- return ret;
+ if (ret)
+ printf("Failed to disable node '%s': %s\n",
+ fdt_get_name(blob, off, NULL),
+ fdt_strerror(ret));
+ if (!panel_name)
+ return ret;
+
+ panel_off = fdt_path_offset(blob, panel_name);
+ if (panel_off < 0)
+ return 0;
+ return fdt_set_node_status(blob, panel_off,
+ FDT_STATUS_DISABLED, 0);
}
off = fdt_subnode_offset(blob, off, subnode);
fdt_strerror(off));
return off;
}
- while (off > 0) {
- const char *n, *endp;
- int len, d = 1;
-
- off = fdt_next_node(blob, off, &d);
- if (off < 0)
- return off;
- if (d < 1)
- return -EINVAL;
- if (d > 2) {
- debug("Skipping node @ %04x %s depth %d\n", off,
- fdt_get_name(blob, off, NULL), d);
- continue;
+ off = karo_fdt_find_panel(blob, off, name);
+ if (off > 0)
+ ret = fdt_update_native_fb_mode(blob, off);
+ else
+ ret = 0;
+ if (!panel_name)
+ return ret;
+ restart:
+ dt_node = fdt_path_offset(blob, "display/display-timings");
+ off = karo_fdt_find_panel(blob, dt_node, name);
+ panel_off = fdt_path_offset(blob, panel_name);
+ if (panel_off > 0) {
+ int node = fdt_subnode_offset(blob, dt_node, name);
+
+ if (node < 0) {
+ printf("Warning: No '%s' subnode found in 'display-timings'\n",
+ name);
+ return -ENOENT;
}
+ if (fdt_node_check_compatible(blob, panel_off, "panel-dpi") == 0) {
+ int timing_node = fdt_subnode_offset(blob, panel_off,
+ "panel-timing");
- n = fdt_getprop(blob, off, "panel-name", &len);
- if (!n) {
- n = fdt_get_name(blob, off, NULL);
- if (strcasecmp(n, name) == 0) {
- break;
+ if (timing_node < 0) {
+ printf("Warning: No 'panel-timing' subnode found\n");
+ return -ENOENT;
}
- } else {
- int found = 0;
-
- for (endp = n + len; n < endp; n += strlen(n) + 1) {
- debug("Checking panel-name '%s'\n", n);
- if (strcasecmp(n, name) == 0) {
- debug("Using node %s @ %04x\n",
- fdt_get_name(blob, off, NULL), off);
- found = 1;
- break;
- }
+
+ if (i == 0)
+ printf("Copying video timing from %s\n", name);
+ ret = karo_fixup_panel_timing(blob,
+ timing_node,
+ node);
+ if (ret == -EAGAIN) {
+ if (i++ > ARRAY_SIZE(karo_panel_timing_props))
+ return -EINVAL;
+ goto restart;
}
- if (found)
- break;
+ } else {
+ char *pn;
+
+ name = fdt_getprop(blob, off, "u-boot,panel-name",
+ NULL);
+ if (!name)
+ return 0;
+
+ pn = strdup(name);
+ if (!pn)
+ return -ENOMEM;
+ debug("%s@%d: Updating 'compatible' property of '%s' from '%s' to '%s'\n",
+ __func__, __LINE__, fdt_get_name(blob, panel_off, NULL),
+ (char *)fdt_getprop(blob, panel_off, "compatible", NULL),
+ pn);
+
+ ret = fdt_setprop_string(blob, panel_off, "compatible",
+ pn);
+ if (ret)
+ printf("Failed to set 'compatible' property of node '%s': %s\n",
+ fdt_get_name(blob, panel_off, NULL),
+ fdt_strerror(off));
+ free(pn);
}
}
- if (off > 0)
- return fdt_update_native_fb_mode(blob, off);
- return off;
+ return ret;
}
#ifdef CONFIG_SYS_LVDS_IF
projects / karo-tx-uboot.git / blobdiff