[src/trunk]: src/sys/dev/pci Handle EDID:N entries, where N is the port numbe...

[jdc <jdc%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/7eebf28dfcc6
branches:  trunk
changeset: 977016:7eebf28dfcc6
user:      jdc <jdc%NetBSD.org@localhost>
date:      Sun Oct 11 21:41:57 2020 +0000

description:
Handle EDID:N entries, where N is the port number, so that we can set up
the display on port1 when port0 has no EDID information.
Try harder not to return NULL from radeonfb_modelookup() because we use
the result without checking later.
While here, adjust RADEONFB_DEBUG output:
  don't print RADEON_PIXCLKS_CNTL (fixes a crash on sparc64 because it's
  not aligned)
  don't ignore the bottom 200 lines of the display (for no apparent reason))

diffstat:

 sys/dev/pci/radeonfb.c |  38 ++++++++++++++++++++++++++------------
 1 files changed, 26 insertions(+), 12 deletions(-)

diffs (101 lines):

diff -r 42da14351780 -r 7eebf28dfcc6 sys/dev/pci/radeonfb.c
--- a/sys/dev/pci/radeonfb.c    Sun Oct 11 21:32:37 2020 +0000
+++ b/sys/dev/pci/radeonfb.c    Sun Oct 11 21:41:57 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: radeonfb.c,v 1.110 2020/09/28 05:43:58 macallan Exp $ */
+/*     $NetBSD: radeonfb.c,v 1.111 2020/10/11 21:41:57 jdc Exp $ */
 
 /*-
  * Copyright (c) 2006 Itronix Inc.
@@ -70,7 +70,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: radeonfb.c,v 1.110 2020/09/28 05:43:58 macallan Exp $");
+__KERNEL_RCSID(0, "$NetBSD: radeonfb.c,v 1.111 2020/10/11 21:41:57 jdc Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -590,7 +590,10 @@
        PRINTREG(RADEON_LVDS_GEN_CNTL);
        PRINTREG(RADEON_DISP_HW_DEBUG);
        if (!IS_AVIVO(sc)) {
+               /*
+               XXX: We can't print this, as it's not correctly aligned
                PRINTREG(RADEON_PIXCLKS_CNTL);
+               */
                PRINTREG(RADEON_CRTC_H_SYNC_STRT_WID);
                PRINTREG(RADEON_FP_H_SYNC_STRT_WID);
                PRINTREG(RADEON_CRTC2_H_SYNC_STRT_WID);
@@ -927,10 +930,6 @@
 
                dp->rd_vd.init_screen = radeonfb_init_screen;
 
-#ifdef RADEONFB_DEBUG
-               dp->rd_virty -= 200;
-#endif
-
                dp->rd_console = 0;
                prop_dictionary_get_bool(device_properties(sc->sc_dev),
                    "is_console", &dp->rd_console);
@@ -1068,7 +1067,10 @@
                PRINTREG(RADEON_TMDS_CNTL);
                PRINTREG(RADEON_TMDS_TRANSMITTER_CNTL);
                PRINTREG(RADEON_TMDS_PLL_CNTL);
+               /*
+               XXX: We can't print this, as it's not correctly aligned
                PRINTREG(RADEON_PIXCLKS_CNTL);
+               */
        }
        return;
 
@@ -1968,7 +1970,7 @@
        }
 
        for (i = 0; i < 2; i++) {
-               char    edid[128];
+               char    edid[128], edid_port_str[7] = "EDID:";
                uint8_t ddc;
                struct edid_info *eip = &sc->sc_ports[i].rp_edid;
                prop_data_t edid_data;
@@ -1981,10 +1983,17 @@
                DPRINTF(("   crtc = %d\n", sc->sc_ports[i].rp_number));
 
                sc->sc_ports[i].rp_edid_valid = 0;
-               /* first look for static EDID data */
-               if ((edid_data = prop_dictionary_get(device_properties(
-                     sc->sc_dev), "EDID")) != NULL) {
-
+               /*
+                * First look for static EDID data
+                * Try "EDID:port" then "EDID"
+                */
+               snprintf(&edid_port_str[5], 2, "%d", i);
+               edid_data = prop_dictionary_get(device_properties(
+                   sc->sc_dev), edid_port_str);
+               if (edid_data == NULL)
+                       edid_data = prop_dictionary_get(device_properties(
+                             sc->sc_dev), "EDID");
+               if (edid_data != NULL) {
                        aprint_debug_dev(sc->sc_dev, "using static EDID\n");
                        memcpy(edid, prop_data_value(edid_data), 128);
                        if (edid_parse(edid, eip) == 0) {
@@ -2078,12 +2087,17 @@
 radeonfb_modelookup(const char *name)
 {
        int     i;
+       /* Use a default mode in case we don't find a matching mode */
+       const char *vm = "1024x768x60";
+       const struct videomode *vmp = NULL;
 
        for (i = 0; i < videomode_count; i++) {
                if (!strcmp(name, videomode_list[i].name))
                        return &videomode_list[i];
+               if (!strcmp(vm, videomode_list[i].name))
+                       vmp = &videomode_list[i];
        }
-       return NULL;
+       return vmp;
 }
 
 void