From e7b5d63a82fea9082eb9570df8cb88d5d0e075c3 Mon Sep 17 00:00:00 2001 From: Al Cooper Date: Mon, 13 Jan 2020 16:07:04 -0500 Subject: [PATCH] mmc: sdhci-brcmstb: Add shutdown callback 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 Link: https://lore.kernel.org/r/20200113210706.11972-5-alcooperx@gmail.com Signed-off-by: Ulf Hansson --- drivers/mmc/host/sdhci-brcmstb.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/mmc/host/sdhci-brcmstb.c b/drivers/mmc/host/sdhci-brcmstb.c index 218176b79b6a..7ea426ba5cbc 100644 --- a/drivers/mmc/host/sdhci-brcmstb.c +++ b/drivers/mmc/host/sdhci-brcmstb.c @@ -161,6 +161,15 @@ err_clk: 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); static struct platform_driver sdhci_brcmstb_driver = { @@ -171,6 +180,7 @@ static struct platform_driver sdhci_brcmstb_driver = { }, .probe = sdhci_brcmstb_probe, .remove = sdhci_pltfm_unregister, + .shutdown = sdhci_brcmstb_shutdown, }; module_platform_driver(sdhci_brcmstb_driver); -- 2.17.1