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staging: board: Migrate away from __pm_genpd_name_add_device()

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The named genpd APIs are deprecated. Hence convert the board staging
code from using genpd names to DT node paths.

For now this supports PM domains with "#power-domain-cells = <0>" only.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Geert Uytterhoeven 2015-09-08 19:06:03 +02:00 committed by Rafael J. Wysocki
parent 30e7a65b3f
commit f33b77408a
2 changed files with 36 additions and 2 deletions
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2
drivers/staging/board/armadillo800eva.c
View File

@ -91,7 +91,7 @@ static const struct board_staging_dev armadillo800eva_devices[] __initconst = {
.pdev = &lcdc0_device,
.clocks = lcdc0_clocks,
.nclocks = ARRAY_SIZE(lcdc0_clocks),
.domain = "a4lc",
.domain = "/system-controller@e6180000/pm-domains/c5/a4lc@1"
},
};

36
drivers/staging/board/board.c
View File

@ -135,6 +135,40 @@ int __init board_staging_register_clock(const struct board_staging_clk *bsc)
return error;
}
#ifdef CONFIG_PM_GENERIC_DOMAINS_OF
static int board_staging_add_dev_domain(struct platform_device *pdev,
const char *domain)
{
struct of_phandle_args pd_args;
struct generic_pm_domain *pd;
struct device_node *np;
np = of_find_node_by_path(domain);
if (!np) {
pr_err("Cannot find domain node %s\n", domain);
return -ENOENT;
}
pd_args.np = np;
pd_args.args_count = 0;
pd = of_genpd_get_from_provider(&pd_args);
if (IS_ERR(pd)) {
pr_err("Cannot find genpd %s (%ld)\n", domain, PTR_ERR(pd));
return PTR_ERR(pd);
}
pr_debug("Found genpd %s for device %s\n", pd->name, pdev->name);
return pm_genpd_add_device(pd, &pdev->dev);
}
#else
static inline int board_staging_add_dev_domain(struct platform_device *pdev,
const char *domain)
{
return 0;
}
#endif
int __init board_staging_register_device(const struct board_staging_dev *dev)
{
struct platform_device *pdev = dev->pdev;
@ -161,7 +195,7 @@ int __init board_staging_register_device(const struct board_staging_dev *dev)
}
if (dev->domain)
__pm_genpd_name_add_device(dev->domain, &pdev->dev, NULL);
board_staging_add_dev_domain(pdev, dev->domain);
return error;
}