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authorAl Cooper <alcooperx@gmail.com>2020-01-14 00:07:04 +0300
committerUlf Hansson <ulf.hansson@linaro.org>2020-01-20 14:01:15 +0300
commite7b5d63a82fea9082eb9570df8cb88d5d0e075c3 (patch)
treea8a47f4548cceb6ce7c8635db3e88851c4e4bf51 /drivers/mmc
parent6f2aa55b85c070e60865504f88c08486771b2255 (diff)
downloadlinux-e7b5d63a82fea9082eb9570df8cb88d5d0e075c3.tar.xz
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 <alcooperx@gmail.com> Link: https://lore.kernel.org/r/20200113210706.11972-5-alcooperx@gmail.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/host/sdhci-brcmstb.c10
1 files changed, 10 insertions, 0 deletions
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);