From e5fd91f1ef340da553f7a79da9540c3db711c937 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Tue, 8 Sep 2015 01:01:14 -0300 Subject: Linux-libre 4.2-gnu --- drivers/mmc/core/sdio.c | 90 +++++++++++++++++++------------------------------ 1 file changed, 35 insertions(+), 55 deletions(-) (limited to 'drivers/mmc/core/sdio.c') diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c index 5bc6c7dbb..b91abedcf 100644 --- a/drivers/mmc/core/sdio.c +++ b/drivers/mmc/core/sdio.c @@ -402,69 +402,38 @@ static unsigned char host_drive_to_sdio_drive(int host_strength) static void sdio_select_driver_type(struct mmc_card *card) { - int host_drv_type = SD_DRIVER_TYPE_B; - int card_drv_type = SD_DRIVER_TYPE_B; - int drive_strength; + int card_drv_type, drive_strength, drv_type; unsigned char card_strength; int err; - /* - * If the host doesn't support any of the Driver Types A,C or D, - * or there is no board specific handler then default Driver - * Type B is used. - */ - if (!(card->host->caps & - (MMC_CAP_DRIVER_TYPE_A | - MMC_CAP_DRIVER_TYPE_C | - MMC_CAP_DRIVER_TYPE_D))) - return; - - if (!card->host->ops->select_drive_strength) - return; - - if (card->host->caps & MMC_CAP_DRIVER_TYPE_A) - host_drv_type |= SD_DRIVER_TYPE_A; - - if (card->host->caps & MMC_CAP_DRIVER_TYPE_C) - host_drv_type |= SD_DRIVER_TYPE_C; + card->drive_strength = 0; - if (card->host->caps & MMC_CAP_DRIVER_TYPE_D) - host_drv_type |= SD_DRIVER_TYPE_D; + card_drv_type = card->sw_caps.sd3_drv_type | SD_DRIVER_TYPE_B; - if (card->sw_caps.sd3_drv_type & SD_DRIVER_TYPE_A) - card_drv_type |= SD_DRIVER_TYPE_A; - - if (card->sw_caps.sd3_drv_type & SD_DRIVER_TYPE_C) - card_drv_type |= SD_DRIVER_TYPE_C; - - if (card->sw_caps.sd3_drv_type & SD_DRIVER_TYPE_D) - card_drv_type |= SD_DRIVER_TYPE_D; - - /* - * The drive strength that the hardware can support - * depends on the board design. Pass the appropriate - * information and let the hardware specific code - * return what is possible given the options - */ - drive_strength = card->host->ops->select_drive_strength( - card->sw_caps.uhs_max_dtr, - host_drv_type, card_drv_type); + drive_strength = mmc_select_drive_strength(card, + card->sw_caps.uhs_max_dtr, + card_drv_type, &drv_type); - /* if error just use default for drive strength B */ - err = mmc_io_rw_direct(card, 0, 0, SDIO_CCCR_DRIVE_STRENGTH, 0, - &card_strength); - if (err) - return; + if (drive_strength) { + /* if error just use default for drive strength B */ + err = mmc_io_rw_direct(card, 0, 0, SDIO_CCCR_DRIVE_STRENGTH, 0, + &card_strength); + if (err) + return; - card_strength &= ~(SDIO_DRIVE_DTSx_MASK<drive_strength = drive_strength; + } - /* if error default to drive strength B */ - if (!err) - mmc_set_driver_type(card->host, drive_strength); + if (drv_type) + mmc_set_driver_type(card->host, drv_type); } @@ -934,8 +903,12 @@ static int mmc_sdio_suspend(struct mmc_host *host) mmc_release_host(host); } - if (!mmc_card_keep_power(host)) + if (!mmc_card_keep_power(host)) { mmc_power_off(host); + } else if (host->retune_period) { + mmc_retune_timer_stop(host); + mmc_retune_needed(host); + } return 0; } @@ -1056,6 +1029,12 @@ static int mmc_sdio_runtime_resume(struct mmc_host *host) return mmc_sdio_power_restore(host); } +static int mmc_sdio_reset(struct mmc_host *host) +{ + mmc_power_cycle(host, host->card->ocr); + return mmc_sdio_power_restore(host); +} + static const struct mmc_bus_ops mmc_sdio_ops = { .remove = mmc_sdio_remove, .detect = mmc_sdio_detect, @@ -1066,6 +1045,7 @@ static const struct mmc_bus_ops mmc_sdio_ops = { .runtime_resume = mmc_sdio_runtime_resume, .power_restore = mmc_sdio_power_restore, .alive = mmc_sdio_alive, + .reset = mmc_sdio_reset, }; -- cgit v1.2.3-54-g00ecf