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authorThierry Reding <treding@nvidia.com>2017-03-29 19:34:52 +0300
committerThierry Reding <treding@nvidia.com>2017-06-13 16:23:29 +0300
commite7149a7a3fc4ee6785f17961738f40ce1266d8d0 (patch)
tree5d5576d2113537bf01fd81b0db75e1d8b77fb3ee /drivers/firmware/tegra
parent52b8b80395835c3012bf79fc9d5a1dd82a2d922a (diff)
downloadlinux-e7149a7a3fc4ee6785f17961738f40ce1266d8d0.tar.xz
soc/tegra: bpmp: Implement generic PM domains
The BPMP firmware, found on Tegra186 and later, provides an ABI that can be used to enable and disable power to several power partitions in Tegra SoCs. The ABI allows for enumeration of the available power partitions, so the driver can be reused on future generations, provided the BPMP ABI remains stable. Based on work by Stefan Kristiansson <stefank@nvidia.com> and Mikko Perttunen <mperttunen@nvidia.com>. Signed-off-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/firmware/tegra')
-rw-r--r--drivers/firmware/tegra/bpmp.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/firmware/tegra/bpmp.c b/drivers/firmware/tegra/bpmp.c
index 84e4c9a58a0c..f11c7025b4a1 100644
--- a/drivers/firmware/tegra/bpmp.c
+++ b/drivers/firmware/tegra/bpmp.c
@@ -810,6 +810,10 @@ static int tegra_bpmp_probe(struct platform_device *pdev)
if (err < 0)
goto free_mrq;
+ err = tegra_bpmp_init_powergates(bpmp);
+ if (err < 0)
+ goto free_mrq;
+
platform_set_drvdata(pdev, bpmp);
return 0;