mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-30 22:26:55 +00:00
Code Issues Releases Wiki Activity

firmware: tegra: Enable BPMP support on Tegra234

Browse source 
Enable support for the BPMP on Tegra234 to avoid relying on Tegra194
being enabled to pull in the needed OF device ID table entry.

On simulation platforms the BPMP hasn't booted up yet by the time we
probe the BPMP driver and the BPMP hasn't had a chance to mark the
doorbell as ringable by the CCPLEX. This corresponding check in the
BPMP driver will therefore fail. Work around this by disabling the
check on simulation platforms.

Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding 2020-09-17 12:07:51 +02:00
parent e5c88986b9
commit 0ebdf11699
2 changed files with 10 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
drivers/firmware/tegra/bpmp.c
View file

@ -856,7 +856,8 @@ static const struct tegra_bpmp_soc tegra210_soc = {
static const struct of_device_id tegra_bpmp_match[] = {
#if IS_ENABLED(CONFIG_ARCH_TEGRA_186_SOC) || \
IS_ENABLED(CONFIG_ARCH_TEGRA_194_SOC)
IS_ENABLED(CONFIG_ARCH_TEGRA_194_SOC) || \
IS_ENABLED(CONFIG_ARCH_TEGRA_234_SOC)
{ .compatible = "nvidia,tegra186-bpmp", .data = &tegra186_soc },
#endif
#if IS_ENABLED(CONFIG_ARCH_TEGRA_210_SOC)

9
drivers/mailbox/tegra-hsp.c
View file

@ -13,6 +13,8 @@
#include <linux/pm.h>
#include <linux/slab.h>
#include <soc/tegra/fuse.h>
#include <dt-bindings/mailbox/tegra186-hsp.h>
#include "mailbox.h"
@ -322,7 +324,12 @@ static int tegra_hsp_doorbell_startup(struct mbox_chan *chan)
if (!ccplex)
return -ENODEV;
if (!tegra_hsp_doorbell_can_ring(db))
/*
* On simulation platforms the BPMP hasn't had a chance yet to mark
* the doorbell as ringable by the CCPLEX, so we want to skip extra
* checks here.
*/
if (tegra_is_silicon() && !tegra_hsp_doorbell_can_ring(db))
return -ENODEV;
spin_lock_irqsave(&hsp->lock, flags);