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mmc: sdhci-brcmstb: Add shutdown callback

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Shutdown controller and disable it's clocks to insure max power
savings in S5 on systems that leave power on.

Signed-off-by: Al Cooper <alcooperx@gmail.com>
Link: https://lore.kernel.org/r/20200113210706.11972-5-alcooperx@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Al Cooper 2020-01-13 16:07:04 -05:00 • committed by Ulf Hansson
parent 6f2aa55b85
commit e7b5d63a82
1 changed files with 10 additions and 0 deletions
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10
drivers/mmc/host/sdhci-brcmstb.c
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@ -161,6 +161,15 @@ err_clk:
return res; return res;
} }
static void sdhci_brcmstb_shutdown(struct platform_device *pdev)
{
int ret;
ret = sdhci_pltfm_unregister(pdev);
if (ret)
dev_err(&pdev->dev, "failed to shutdown\n");
}
MODULE_DEVICE_TABLE(of, sdhci_brcm_of_match); MODULE_DEVICE_TABLE(of, sdhci_brcm_of_match);
static struct platform_driver sdhci_brcmstb_driver = { static struct platform_driver sdhci_brcmstb_driver = {
@ -171,6 +180,7 @@ static struct platform_driver sdhci_brcmstb_driver = {
}, },
.probe = sdhci_brcmstb_probe, .probe = sdhci_brcmstb_probe,
.remove = sdhci_pltfm_unregister, .remove = sdhci_pltfm_unregister,
.shutdown = sdhci_brcmstb_shutdown,
}; };
module_platform_driver(sdhci_brcmstb_driver); module_platform_driver(sdhci_brcmstb_driver);