firmware/psci: demote suspend-mode warning to info level

On some Qualcomm platforms, like SC8280XP, the attempt to set PC mode
during boot fails with PSCI_RET_DENIED and since commit 998fcd001feb
("firmware/psci: Print a warning if PSCI doesn't accept PC mode") this
is now logged at warning level:

	psci: failed to set PC mode: -3

As there is nothing users can do about the firmware behaving this way,
demote the warning to info level and clearly mark it as a firmware bug:

	psci: [Firmware Bug]: failed to set PC mode: -3

Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Acked-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

diff --git a/drivers/firmware/psci/psci.c b/drivers/firmware/psci/psci.c
index 29619f4..d9629ff 100644 (file)
--- a/drivers/firmware/psci/psci.c
+++ b/drivers/firmware/psci/psci.c
@@ -167,7 +167,8 @@ int psci_set_osi_mode(bool enable)
 
        err = invoke_psci_fn(PSCI_1_0_FN_SET_SUSPEND_MODE, suspend_mode, 0, 0);
        if (err < 0)
-               pr_warn("failed to set %s mode: %d\n", enable ? "OSI" : "PC", err);
+               pr_info(FW_BUG "failed to set %s mode: %d\n",
+                               enable ? "OSI" : "PC", err);
        return psci_to_linux_errno(err);
 }