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MMC host:

Browse Source 
- sdhci: Fix regression setting power on Trats2 board
  - sdhci-pci: Add support and PCI IDs for more Broxton host controllers
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Merge tag 'mmc-v4.6-rc1' of git://git.linaro.org/people/ulf.hansson/mmc

Pull MMC fixes from Ulf Hansson:
 "Here are a couple of mmc fixes intended for v4.6 rc3:

  MMC host:
   - sdhci: Fix regression setting power on Trats2 board
   - sdhci-pci: Add support and PCI IDs for more Broxton host controllers"

* tag 'mmc-v4.6-rc1' of git://git.linaro.org/people/ulf.hansson/mmc:
  mmc: sdhci-pci: Add support and PCI IDs for more Broxton host controllers
  mmc: sdhci: Fix regression setting power on Trats2 board
This commit is contained in:
Linus Torvalds 2016-04-10 17:38:55 -07:00
commit 2f422f94ee
5 changed files with 84 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
drivers/mmc/host/sdhci-pci-core.c
View File

@ -390,6 +390,7 @@ static int byt_sd_probe_slot(struct sdhci_pci_slot *slot)
slot->cd_idx = 0;
slot->cd_override_level = true;
if (slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_BXT_SD ||
slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_BXTM_SD ||
slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_APL_SD)
slot->host->mmc_host_ops.get_cd = bxt_get_cd;
@ -1171,6 +1172,30 @@ static const struct pci_device_id pci_ids[] = {
.driver_data = (kernel_ulong_t)&sdhci_intel_byt_sd,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_BXTM_EMMC,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_BXTM_SDIO,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_byt_sdio,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_BXTM_SD,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_intel_byt_sd,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_APL_EMMC,

3
drivers/mmc/host/sdhci-pci.h
View File

@ -28,6 +28,9 @@
#define PCI_DEVICE_ID_INTEL_BXT_SD 0x0aca
#define PCI_DEVICE_ID_INTEL_BXT_EMMC 0x0acc
#define PCI_DEVICE_ID_INTEL_BXT_SDIO 0x0ad0
#define PCI_DEVICE_ID_INTEL_BXTM_SD 0x1aca
#define PCI_DEVICE_ID_INTEL_BXTM_EMMC 0x1acc
#define PCI_DEVICE_ID_INTEL_BXTM_SDIO 0x1ad0
#define PCI_DEVICE_ID_INTEL_APL_SD 0x5aca
#define PCI_DEVICE_ID_INTEL_APL_EMMC 0x5acc
#define PCI_DEVICE_ID_INTEL_APL_SDIO 0x5ad0

22
drivers/mmc/host/sdhci-pxav3.c
View File

@ -309,8 +309,30 @@ static void pxav3_set_uhs_signaling(struct sdhci_host *host, unsigned int uhs)
__func__, uhs, ctrl_2);
}
static void pxav3_set_power(struct sdhci_host *host, unsigned char mode,
unsigned short vdd)
{
struct mmc_host *mmc = host->mmc;
u8 pwr = host->pwr;
sdhci_set_power(host, mode, vdd);
if (host->pwr == pwr)
return;
if (host->pwr == 0)
vdd = 0;
if (!IS_ERR(mmc->supply.vmmc)) {
spin_unlock_irq(&host->lock);
mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, vdd);
spin_lock_irq(&host->lock);
}
}
static const struct sdhci_ops pxav3_sdhci_ops = {
.set_clock = sdhci_set_clock,
.set_power = pxav3_set_power,
.platform_send_init_74_clocks = pxav3_gen_init_74_clocks,
.get_max_clock = sdhci_pltfm_clk_get_max_clock,
.set_bus_width = sdhci_set_bus_width,

39
drivers/mmc/host/sdhci.c
View File

@ -1210,10 +1210,24 @@ void sdhci_set_clock(struct sdhci_host *host, unsigned int clock)
}
EXPORT_SYMBOL_GPL(sdhci_set_clock);
static void sdhci_set_power(struct sdhci_host *host, unsigned char mode,
unsigned short vdd)
static void sdhci_set_power_reg(struct sdhci_host *host, unsigned char mode,
unsigned short vdd)
{
struct mmc_host *mmc = host->mmc;
spin_unlock_irq(&host->lock);
mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, vdd);
spin_lock_irq(&host->lock);
if (mode != MMC_POWER_OFF)
sdhci_writeb(host, SDHCI_POWER_ON, SDHCI_POWER_CONTROL);
else
sdhci_writeb(host, 0, SDHCI_POWER_CONTROL);
}
void sdhci_set_power(struct sdhci_host *host, unsigned char mode,
unsigned short vdd)
{
u8 pwr = 0;
if (mode != MMC_POWER_OFF) {
@ -1245,7 +1259,6 @@ static void sdhci_set_power(struct sdhci_host *host, unsigned char mode,
sdhci_writeb(host, 0, SDHCI_POWER_CONTROL);
if (host->quirks2 & SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON)
sdhci_runtime_pm_bus_off(host);
vdd = 0;
} else {
/*
* Spec says that we should clear the power reg before setting
@ -1276,12 +1289,20 @@ static void sdhci_set_power(struct sdhci_host *host, unsigned char mode,
if (host->quirks & SDHCI_QUIRK_DELAY_AFTER_POWER)
mdelay(10);
}
}
EXPORT_SYMBOL_GPL(sdhci_set_power);
if (!IS_ERR(mmc->supply.vmmc)) {
spin_unlock_irq(&host->lock);
mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, vdd);
spin_lock_irq(&host->lock);
}
static void __sdhci_set_power(struct sdhci_host *host, unsigned char mode,
unsigned short vdd)
{
struct mmc_host *mmc = host->mmc;
if (host->ops->set_power)
host->ops->set_power(host, mode, vdd);
else if (!IS_ERR(mmc->supply.vmmc))
sdhci_set_power_reg(host, mode, vdd);
else
sdhci_set_power(host, mode, vdd);
}
/*****************************************************************************\
@ -1431,7 +1452,7 @@ static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios)
}
}
sdhci_set_power(host, ios->power_mode, ios->vdd);
__sdhci_set_power(host, ios->power_mode, ios->vdd);
if (host->ops->platform_send_init_74_clocks)
host->ops->platform_send_init_74_clocks(host, ios->power_mode);

4
drivers/mmc/host/sdhci.h
View File

@ -529,6 +529,8 @@ struct sdhci_ops {
#endif
void (*set_clock)(struct sdhci_host *host, unsigned int clock);
void (*set_power)(struct sdhci_host *host, unsigned char mode,
unsigned short vdd);
int (*enable_dma)(struct sdhci_host *host);
unsigned int (*get_max_clock)(struct sdhci_host *host);
@ -660,6 +662,8 @@ static inline bool sdhci_sdio_irq_enabled(struct sdhci_host *host)
}
void sdhci_set_clock(struct sdhci_host *host, unsigned int clock);
void sdhci_set_power(struct sdhci_host *host, unsigned char mode,
unsigned short vdd);
void sdhci_set_bus_width(struct sdhci_host *host, int width);
void sdhci_reset(struct sdhci_host *host, u8 mask);
void sdhci_set_uhs_signaling(struct sdhci_host *host, unsigned timing);