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UPSTREAM: PM / AVS: rockchip-io: make io-domains a child of the GRF

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IO-domain handling is part of the general register files, so should live
under the grf directly. This change allows the grf to be a simple-mfd and
the io-domains fetching the syscon regmap from that parent-node.

The old binding is of course preserved, though deprecated.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Kevin Hilman <khilman@baylibre.com>
Tested-by: David Wu <david.wu@rock-chips.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Change-Id: I562e293fc96283edc868771851f15dba0e80d3bc
(cherry picked from commit bc19b9a81da009fd1d797d756d41b518ac7e5f14)
Signed-off-by: Jacob Chen <jacob2.chen@rock-chips.com>
This commit is contained in:
Jacob Chen
2016-12-09 14:40:33 +08:00
committed by Huang, Tao
parent 31c917aebe
commit 7362631009
2 changed files with 12 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
Documentation/devicetree/bindings/power/rockchip-io-domain.txt
View File

@@ -38,8 +38,10 @@ Required properties:
- "rockchip,rk3368-pmu-io-voltage-domain" for rk3368 pmu-domains
- "rockchip,rk3399-io-voltage-domain" for rk3399
- "rockchip,rk3399-pmu-io-voltage-domain" for rk3399 pmu-domains
- rockchip,grf: phandle to the syscon managing the "general register files"
Deprecated properties:
- rockchip,grf: phandle to the syscon managing the "general register files"
Systems should move the io-domains to a sub-node of the grf simple-mfd.
You specify supplies using the standard regulator bindings by including
a phandle the relevant regulator. All specified supplies must be able

10
drivers/power/avs/rockchip-io-domain.c
View File

@@ -378,6 +378,7 @@ static int rockchip_iodomain_probe(struct platform_device *pdev)
struct device_node *np = pdev->dev.of_node;
const struct of_device_id *match;
struct rockchip_iodomain *iod;
struct device *parent;
int i, ret = 0;
if (!np)
@@ -393,7 +394,14 @@ static int rockchip_iodomain_probe(struct platform_device *pdev)
match = of_match_node(rockchip_iodomain_match, np);
iod->soc_data = (struct rockchip_iodomain_soc_data *)match->data;
iod->grf = syscon_regmap_lookup_by_phandle(np, "rockchip,grf");
parent = pdev->dev.parent;
if (parent && parent->of_node) {
iod->grf = syscon_node_to_regmap(parent->of_node);
} else {
dev_dbg(&pdev->dev, "falling back to old binding\n");
iod->grf = syscon_regmap_lookup_by_phandle(np, "rockchip,grf");
}
if (IS_ERR(iod->grf)) {
dev_err(&pdev->dev, "couldn't find grf regmap\n");
return PTR_ERR(iod->grf);