| Message ID | 1512738498-5812-1-git-send-email-adrian.hunter@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 8 December 2017 at 14:08, Adrian Hunter <adrian.hunter@intel.com> wrote: > Intel DSM function 8 has been used to identify transfer modes that are not > working on some CHT boards. Add support for that. > > Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> > Tested-by: Carlo Caione <carlo@endlessm.com> Thanks, applied for next! Kind regards Uffe > --- > drivers/mmc/host/sdhci-acpi.c | 34 ++++++++++++++++++++++++++++++++++ > 1 file changed, 34 insertions(+) > > diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c > index f7445cf8f7dd..264f10327bf9 100644 > --- a/drivers/mmc/host/sdhci-acpi.c > +++ b/drivers/mmc/host/sdhci-acpi.c > @@ -97,14 +97,21 @@ static inline bool sdhci_acpi_flag(struct sdhci_acpi_host *c, unsigned int flag) > return c->slot && (c->slot->flags & flag); > } > > +#define INTEL_DSM_HS_CAPS_SDR25 BIT(0) > +#define INTEL_DSM_HS_CAPS_DDR50 BIT(1) > +#define INTEL_DSM_HS_CAPS_SDR50 BIT(2) > +#define INTEL_DSM_HS_CAPS_SDR104 BIT(3) > + > enum { > INTEL_DSM_FNS = 0, > INTEL_DSM_V18_SWITCH = 3, > INTEL_DSM_V33_SWITCH = 4, > + INTEL_DSM_HS_CAPS = 8, > }; > > struct intel_host { > u32 dsm_fns; > + u32 hs_caps; > }; > > static const guid_t intel_dsm_guid = > @@ -153,6 +160,8 @@ static void intel_dsm_init(struct intel_host *intel_host, struct device *dev, > { > int err; > > + intel_host->hs_caps = ~0; > + > err = __intel_dsm(intel_host, dev, INTEL_DSM_FNS, &intel_host->dsm_fns); > if (err) { > pr_debug("%s: DSM not supported, error %d\n", > @@ -162,6 +171,8 @@ static void intel_dsm_init(struct intel_host *intel_host, struct device *dev, > > pr_debug("%s: DSM function mask %#x\n", > mmc_hostname(mmc), intel_host->dsm_fns); > + > + intel_dsm(intel_host, dev, INTEL_DSM_HS_CAPS, &intel_host->hs_caps); > } > > static int intel_start_signal_voltage_switch(struct mmc_host *mmc, > @@ -399,6 +410,26 @@ static int intel_probe_slot(struct platform_device *pdev, const char *hid, > return 0; > } > > +static int intel_setup_host(struct platform_device *pdev) > +{ > + struct sdhci_acpi_host *c = platform_get_drvdata(pdev); > + struct intel_host *intel_host = sdhci_acpi_priv(c); > + > + if (!(intel_host->hs_caps & INTEL_DSM_HS_CAPS_SDR25)) > + c->host->mmc->caps &= ~MMC_CAP_UHS_SDR25; > + > + if (!(intel_host->hs_caps & INTEL_DSM_HS_CAPS_SDR50)) > + c->host->mmc->caps &= ~MMC_CAP_UHS_SDR50; > + > + if (!(intel_host->hs_caps & INTEL_DSM_HS_CAPS_DDR50)) > + c->host->mmc->caps &= ~MMC_CAP_UHS_DDR50; > + > + if (!(intel_host->hs_caps & INTEL_DSM_HS_CAPS_SDR104)) > + c->host->mmc->caps &= ~MMC_CAP_UHS_SDR104; > + > + return 0; > +} > + > static const struct sdhci_acpi_slot sdhci_acpi_slot_int_emmc = { > .chip = &sdhci_acpi_chip_int, > .caps = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE | > @@ -410,6 +441,7 @@ static int intel_probe_slot(struct platform_device *pdev, const char *hid, > SDHCI_QUIRK2_STOP_WITH_TC | > SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400, > .probe_slot = intel_probe_slot, > + .setup_host = intel_setup_host, > .priv_size = sizeof(struct intel_host), > }; > > @@ -422,6 +454,7 @@ static int intel_probe_slot(struct platform_device *pdev, const char *hid, > .flags = SDHCI_ACPI_RUNTIME_PM, > .pm_caps = MMC_PM_KEEP_POWER, > .probe_slot = intel_probe_slot, > + .setup_host = intel_setup_host, > .priv_size = sizeof(struct intel_host), > }; > > @@ -433,6 +466,7 @@ static int intel_probe_slot(struct platform_device *pdev, const char *hid, > SDHCI_QUIRK2_STOP_WITH_TC, > .caps = MMC_CAP_WAIT_WHILE_BUSY | MMC_CAP_AGGRESSIVE_PM, > .probe_slot = intel_probe_slot, > + .setup_host = intel_setup_host, > .priv_size = sizeof(struct intel_host), > }; > > -- > 1.9.1 > -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c index f7445cf8f7dd..264f10327bf9 100644 --- a/drivers/mmc/host/sdhci-acpi.c +++ b/drivers/mmc/host/sdhci-acpi.c @@ -97,14 +97,21 @@ static inline bool sdhci_acpi_flag(struct sdhci_acpi_host *c, unsigned int flag) return c->slot && (c->slot->flags & flag); } +#define INTEL_DSM_HS_CAPS_SDR25 BIT(0) +#define INTEL_DSM_HS_CAPS_DDR50 BIT(1) +#define INTEL_DSM_HS_CAPS_SDR50 BIT(2) +#define INTEL_DSM_HS_CAPS_SDR104 BIT(3) + enum { INTEL_DSM_FNS = 0, INTEL_DSM_V18_SWITCH = 3, INTEL_DSM_V33_SWITCH = 4, + INTEL_DSM_HS_CAPS = 8, }; struct intel_host { u32 dsm_fns; + u32 hs_caps; }; static const guid_t intel_dsm_guid = @@ -153,6 +160,8 @@ static void intel_dsm_init(struct intel_host *intel_host, struct device *dev, { int err; + intel_host->hs_caps = ~0; + err = __intel_dsm(intel_host, dev, INTEL_DSM_FNS, &intel_host->dsm_fns); if (err) { pr_debug("%s: DSM not supported, error %d\n", @@ -162,6 +171,8 @@ static void intel_dsm_init(struct intel_host *intel_host, struct device *dev, pr_debug("%s: DSM function mask %#x\n", mmc_hostname(mmc), intel_host->dsm_fns); + + intel_dsm(intel_host, dev, INTEL_DSM_HS_CAPS, &intel_host->hs_caps); } static int intel_start_signal_voltage_switch(struct mmc_host *mmc, @@ -399,6 +410,26 @@ static int intel_probe_slot(struct platform_device *pdev, const char *hid, return 0; } +static int intel_setup_host(struct platform_device *pdev) +{ + struct sdhci_acpi_host *c = platform_get_drvdata(pdev); + struct intel_host *intel_host = sdhci_acpi_priv(c); + + if (!(intel_host->hs_caps & INTEL_DSM_HS_CAPS_SDR25)) + c->host->mmc->caps &= ~MMC_CAP_UHS_SDR25; + + if (!(intel_host->hs_caps & INTEL_DSM_HS_CAPS_SDR50)) + c->host->mmc->caps &= ~MMC_CAP_UHS_SDR50; + + if (!(intel_host->hs_caps & INTEL_DSM_HS_CAPS_DDR50)) + c->host->mmc->caps &= ~MMC_CAP_UHS_DDR50; + + if (!(intel_host->hs_caps & INTEL_DSM_HS_CAPS_SDR104)) + c->host->mmc->caps &= ~MMC_CAP_UHS_SDR104; + + return 0; +} + static const struct sdhci_acpi_slot sdhci_acpi_slot_int_emmc = { .chip = &sdhci_acpi_chip_int, .caps = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE | @@ -410,6 +441,7 @@ static int intel_probe_slot(struct platform_device *pdev, const char *hid, SDHCI_QUIRK2_STOP_WITH_TC | SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400, .probe_slot = intel_probe_slot, + .setup_host = intel_setup_host, .priv_size = sizeof(struct intel_host), }; @@ -422,6 +454,7 @@ static int intel_probe_slot(struct platform_device *pdev, const char *hid, .flags = SDHCI_ACPI_RUNTIME_PM, .pm_caps = MMC_PM_KEEP_POWER, .probe_slot = intel_probe_slot, + .setup_host = intel_setup_host, .priv_size = sizeof(struct intel_host), }; @@ -433,6 +466,7 @@ static int intel_probe_slot(struct platform_device *pdev, const char *hid, SDHCI_QUIRK2_STOP_WITH_TC, .caps = MMC_CAP_WAIT_WHILE_BUSY | MMC_CAP_AGGRESSIVE_PM, .probe_slot = intel_probe_slot, + .setup_host = intel_setup_host, .priv_size = sizeof(struct intel_host), };