[PATCH] pmdomain: tegra: Add support for multi-socket platforms

[Jon Hunter <jonathanh@nvidia.com>]

On multi-socket platforms each socket has its own BPMP that is
registered with the kernel. For such platforms append the NUMA ID for
each socket to the BPMP powergate name to ensure there is a unique name
for each power-domain. Note that we only append the NUMA ID for
powergates that return a valid name because an invalid name indicates
that the powergate ID is not supported.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
---
 drivers/pmdomain/tegra/powergate-bpmp.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/pmdomain/tegra/powergate-bpmp.c b/drivers/pmdomain/tegra/powergate-bpmp.c
index 8cde4f384846..1faaa92a5b02 100644
--- a/drivers/pmdomain/tegra/powergate-bpmp.c
+++ b/drivers/pmdomain/tegra/powergate-bpmp.c
@@ -137,6 +137,11 @@ static char *tegra_bpmp_powergate_get_name(struct tegra_bpmp *bpmp,
 	if (err < 0 || msg.rx.ret < 0)
 		return NULL;
 
+	if (response.get_name.name[0] != '\0' &&
+	    dev_to_node(bpmp->dev) != NUMA_NO_NODE)
+		return kasprintf(GFP_KERNEL, "%s.%d", response.get_name.name,
+				 dev_to_node(bpmp->dev));
+
 	return kstrdup(response.get_name.name, GFP_KERNEL);
 }
 
-- 
2.43.0