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authorOlof Johansson <olof@lixom.net>2019-11-08 10:27:55 -0800
committerOlof Johansson <olof@lixom.net>2019-11-08 10:27:57 -0800
commit44a39847787b022c9f64b48b41c9d2f9dcd815f4 (patch)
tree197fdf07ebab080177683febdf2126d56ff77f1e /drivers/soc
parentd4b0c97a80891d5fb8d73230730f28a42f16fe28 (diff)
parentaf3f1afac38d34083faad852172d0ec82749c046 (diff)
downloadlinux-44a39847787b022c9f64b48b41c9d2f9dcd815f4.tar.gz
Merge tag 'zynqmp-soc-for-v5.5' of https://github.com/Xilinx/linux-xlnx into arm/drivers
arm64: soc: Xilinx SoC changes for v5.5

- Extend firmware interface to cover Versal chip

* tag 'zynqmp-soc-for-v5.5' of https://github.com/Xilinx/linux-xlnx:
  firmware: xilinx: Add support for versal soc
  dt-bindings: firmware: Add bindings for Versal firmware
  soc: xilinx: Set CAP_UNUSABLE requirement for versal while powering down domain

Link: https://lore.kernel.org/r/6954a53c-6dab-c7a3-7257-58460ca952cb@monstr.eu
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'drivers/soc')
-rw-r--r--drivers/soc/xilinx/zynqmp_pm_domains.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/soc/xilinx/zynqmp_pm_domains.c b/drivers/soc/xilinx/zynqmp_pm_domains.c
index 600f57cf0c2e..23d90cb12ba9 100644
--- a/drivers/soc/xilinx/zynqmp_pm_domains.c
+++ b/drivers/soc/xilinx/zynqmp_pm_domains.c
@@ -2,7 +2,7 @@
 /*
  * ZynqMP Generic PM domain support
  *
- *  Copyright (C) 2015-2018 Xilinx, Inc.
+ *  Copyright (C) 2015-2019 Xilinx, Inc.
  *
  *  Davorin Mista <davorin.mista@aggios.com>
  *  Jolly Shah <jollys@xilinx.com>
@@ -25,6 +25,8 @@
 
 static const struct zynqmp_eemi_ops *eemi_ops;
 
+static int min_capability;
+
 /**
  * struct zynqmp_pm_domain - Wrapper around struct generic_pm_domain
  * @gpd:		Generic power domain
@@ -106,7 +108,7 @@ static int zynqmp_gpd_power_off(struct generic_pm_domain *domain)
 	int ret;
 	struct pm_domain_data *pdd, *tmp;
 	struct zynqmp_pm_domain *pd;
-	u32 capabilities = 0;
+	u32 capabilities = min_capability;
 	bool may_wakeup;
 
 	if (!eemi_ops->set_requirement)
@@ -283,6 +285,10 @@ static int zynqmp_gpd_probe(struct platform_device *pdev)
 	if (!domains)
 		return -ENOMEM;
 
+	if (!of_device_is_compatible(dev->parent->of_node,
+				     "xlnx,zynqmp-firmware"))
+		min_capability = ZYNQMP_PM_CAPABILITY_UNUSABLE;
+
 	for (i = 0; i < ZYNQMP_NUM_DOMAINS; i++, pd++) {
 		pd->node_id = 0;
 		pd->gpd.name = kasprintf(GFP_KERNEL, "domain%d", i);