On Sat, Oct 9, 2021 at 11:24 AM Paul Menzel [off-list ref] wrote:

[Cc: +linuxppc-dev@lists.ozlabs.org]

Am 28.09.21 um 09:50 schrieb Arnd Bergmann:

quoted

From: Arnd Bergmann <arnd@arndb.de>

Compile-testing drivers that require access to a firmware layer
fails when that firmware symbol is unavailable. This happened
twice this week:

  - My proposed to change to rework the QCOM_SCM firmware symbol
    broke on ppc64 and others.

  - The cs_dsp firmware patch added device specific firmware loader
    into drivers/firmware, which broke on the same set of
    architectures.

We should probably do the same thing for other subsystems as well,
but fix this one first as this is a dependency for other patches
getting merged.

With this change, I have the new entries below in my .config:

$ diff -u .config.old .config
--- .config.old 2021-10-07 11:38:39.544000000 +0200
+++ .config     2021-10-09 10:02:03.156000000 +0200
@@ -1992,6 +1992,25 @@

  CONFIG_CONNECTOR=y
  CONFIG_PROC_EVENTS=y
+
+#
+# Firmware Drivers
+#
+
+#
+# ARM System Control and Management Interface Protocol
+#
+# end of ARM System Control and Management Interface Protocol
+
+# CONFIG_FIRMWARE_MEMMAP is not set
+# CONFIG_GOOGLE_FIRMWARE is not set
+
+#
+# Tegra firmware driver
+#
+# end of Tegra firmware driver
+# end of Firmware Drivers
+
  # CONFIG_GNSS is not set
  CONFIG_MTD=m
  # CONFIG_MTD_TESTS is not set

No idea if the entries could be hidden for platforms not supporting them.

         ARM System Control and Management Interface Protocol  ----
     [ ] Add firmware-provided memory map to sysfs
     [ ] Google Firmware Drivers  ----
         Tegra firmware driver  ----

GOOGLE_FIRMWARE should probably depend on something.
I highly doubt Google is running servers on e.g. h8300 and nds32.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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