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mmc: sdhci: enable/disable the clock in sdhci_pltfm_suspend/resume

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This commit provides similar cleanups as commit 83eacdfa25 ("mmc:
sdhci: disable the clock in sdhci_pltfm_unregister()") did for
unregister hooks.

sdhci-brcmstb.c and sdhci-sirf.c implement their own suspend/resume
hooks to handle pltfm_host->clk.  Move clock handling to sdhci_pltfm.c
so that the drivers can reuse sdhci_pltfm_pmops.

The following drivers did not previously touch pltfm_host->clk during
suspend/resume, but now do:
  - sdhci-bcm-kona.c
  - sdhci-dove.c
  - sdhci-iproc.c
  - sdhci-pxav2.c
  - sdhci-tegra.c
  - sdhci-xenon.c

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Al Cooper <alcooperx@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Masahiro Yamada
2017-08-23 13:15:02 +09:00
committed by Ulf Hansson
parent 3fd1d86f03
commit 1ab0d2d79b
3 changed files with 22 additions and 76 deletions
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37
drivers/mmc/host/sdhci-brcmstb.c
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@@ -21,41 +21,6 @@
#include "sdhci-pltfm.h"
#ifdef CONFIG_PM_SLEEP
static int sdhci_brcmstb_suspend(struct device *dev)
{
struct sdhci_host *host = dev_get_drvdata(dev);
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
int res;
if (host->tuning_mode != SDHCI_TUNING_MODE_3)
mmc_retune_needed(host->mmc);
res = sdhci_suspend_host(host);
if (res)
return res;
clk_disable_unprepare(pltfm_host->clk);
return res;
}
static int sdhci_brcmstb_resume(struct device *dev)
{
struct sdhci_host *host = dev_get_drvdata(dev);
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
int err;
err = clk_prepare_enable(pltfm_host->clk);
if (err)
return err;
return sdhci_resume_host(host);
}
#endif /* CONFIG_PM_SLEEP */
static SIMPLE_DEV_PM_OPS(sdhci_brcmstb_pmops, sdhci_brcmstb_suspend,
sdhci_brcmstb_resume);
static const struct sdhci_ops sdhci_brcmstb_ops = {
.set_clock = sdhci_set_clock,
.set_bus_width = sdhci_set_bus_width,
@@ -131,7 +96,7 @@ MODULE_DEVICE_TABLE(of, sdhci_brcm_of_match);
static struct platform_driver sdhci_brcmstb_driver = {
.driver = {
.name = "sdhci-brcmstb",
.pm = &sdhci_brcmstb_pmops,
.pm = &sdhci_pltfm_pmops,
.of_match_table = of_match_ptr(sdhci_brcm_of_match),
},
.probe = sdhci_brcmstb_probe,