diff options
| author | Stefan Wahren <wahrenst@gmx.net> | 2024-12-02 12:51:40 +0100 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2024-12-10 11:18:45 +0100 |
| commit | aee2ae1423a2f147d28075499af5d9bf063774c5 (patch) | |
| tree | fd0fcb408080671f7d4f382165cbe4e9f6320be1 /drivers | |
| parent | 634717a2b89a9b2a18af569ddb44ed3cc7de0ec9 (diff) | |
mmc: bcm2835: add suspend/resume pm support
Add a minimalistic suspend/resume PM support.
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Message-ID: <20241202115140.33492-1-wahrenst@gmx.net>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/host/bcm2835.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/mmc/host/bcm2835.c b/drivers/mmc/host/bcm2835.c index 7847f0c8b465..e5f151d092cd 100644 --- a/drivers/mmc/host/bcm2835.c +++ b/drivers/mmc/host/bcm2835.c @@ -1343,6 +1343,25 @@ static int bcm2835_add_host(struct bcm2835_host *host) return 0; } +static int bcm2835_suspend(struct device *dev) +{ + struct bcm2835_host *host = dev_get_drvdata(dev); + + clk_disable_unprepare(host->clk); + + return 0; +} + +static int bcm2835_resume(struct device *dev) +{ + struct bcm2835_host *host = dev_get_drvdata(dev); + + return clk_prepare_enable(host->clk); +} + +static DEFINE_SIMPLE_DEV_PM_OPS(bcm2835_pm_ops, bcm2835_suspend, + bcm2835_resume); + static int bcm2835_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -1471,6 +1490,7 @@ static struct platform_driver bcm2835_driver = { .name = "sdhost-bcm2835", .probe_type = PROBE_PREFER_ASYNCHRONOUS, .of_match_table = bcm2835_match, + .pm = pm_ptr(&bcm2835_pm_ops), }, }; module_platform_driver(bcm2835_driver); |