diff options
Diffstat (limited to 'drivers/mmc/host/rtsx_pci_sdmmc.c')
-rw-r--r-- | drivers/mmc/host/rtsx_pci_sdmmc.c | 48 |
1 files changed, 23 insertions, 25 deletions
diff --git a/drivers/mmc/host/rtsx_pci_sdmmc.c b/drivers/mmc/host/rtsx_pci_sdmmc.c index 571915dfb218..468c92303167 100644 --- a/drivers/mmc/host/rtsx_pci_sdmmc.c +++ b/drivers/mmc/host/rtsx_pci_sdmmc.c @@ -678,12 +678,19 @@ static void sdmmc_request(struct mmc_host *mmc, struct mmc_request *mrq) struct mmc_command *cmd = mrq->cmd; struct mmc_data *data = mrq->data; unsigned int data_size = 0; + int err; if (host->eject) { cmd->error = -ENOMEDIUM; goto finish; } + err = rtsx_pci_card_exclusive_check(host->pcr, RTSX_SD_CARD); + if (err) { + cmd->error = err; + goto finish; + } + mutex_lock(&pcr->pcr_mutex); rtsx_pci_start_run(pcr); @@ -901,6 +908,9 @@ static void sdmmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) if (host->eject) return; + if (rtsx_pci_card_exclusive_check(host->pcr, RTSX_SD_CARD)) + return; + mutex_lock(&pcr->pcr_mutex); rtsx_pci_start_run(pcr); @@ -1060,26 +1070,6 @@ static int sd_wait_voltage_stable_2(struct realtek_pci_sdmmc *host) return 0; } -static int sd_change_bank_voltage(struct realtek_pci_sdmmc *host, u8 voltage) -{ - struct rtsx_pcr *pcr = host->pcr; - int err; - - if (voltage == SD_IO_3V3) { - err = rtsx_pci_write_phy_register(pcr, 0x08, 0x4FC0 | 0x24); - if (err < 0) - return err; - } else if (voltage == SD_IO_1V8) { - err = rtsx_pci_write_phy_register(pcr, 0x08, 0x4C40 | 0x24); - if (err < 0) - return err; - } else { - return -EINVAL; - } - - return 0; -} - static int sdmmc_switch_voltage(struct mmc_host *mmc, struct mmc_ios *ios) { struct realtek_pci_sdmmc *host = mmc_priv(mmc); @@ -1093,16 +1083,20 @@ static int sdmmc_switch_voltage(struct mmc_host *mmc, struct mmc_ios *ios) if (host->eject) return -ENOMEDIUM; + err = rtsx_pci_card_exclusive_check(host->pcr, RTSX_SD_CARD); + if (err) + return err; + mutex_lock(&pcr->pcr_mutex); rtsx_pci_start_run(pcr); if (ios->signal_voltage == MMC_SIGNAL_VOLTAGE_330) - voltage = SD_IO_3V3; + voltage = OUTPUT_3V3; else - voltage = SD_IO_1V8; + voltage = OUTPUT_1V8; - if (voltage == SD_IO_1V8) { + if (voltage == OUTPUT_1V8) { err = rtsx_pci_write_register(pcr, SD30_DRIVE_SEL, 0x07, DRIVER_TYPE_B); if (err < 0) @@ -1113,11 +1107,11 @@ static int sdmmc_switch_voltage(struct mmc_host *mmc, struct mmc_ios *ios) goto out; } - err = sd_change_bank_voltage(host, voltage); + err = rtsx_pci_switch_output_voltage(pcr, voltage); if (err < 0) goto out; - if (voltage == SD_IO_1V8) { + if (voltage == OUTPUT_1V8) { err = sd_wait_voltage_stable_2(host); if (err < 0) goto out; @@ -1142,6 +1136,10 @@ static int sdmmc_execute_tuning(struct mmc_host *mmc, u32 opcode) if (host->eject) return -ENOMEDIUM; + err = rtsx_pci_card_exclusive_check(host->pcr, RTSX_SD_CARD); + if (err) + return err; + mutex_lock(&pcr->pcr_mutex); rtsx_pci_start_run(pcr); |