mmc: core: fix the signaling 1.8V for HS200
Currently only 1.2V is treated for HS200 mode. If the host has only 1.8V I/O capability not 1.2V, mmc_set_signal_voltage can't be called for 1.8V HS200. EXT_CSD_CARD_TYPE_SDR_1_8V needs to be considered. Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com> Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org> Signed-off-by: Chris Ball <cjb@laptop.org>
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@ -728,7 +728,7 @@ static int mmc_select_powerclass(struct mmc_card *card,
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*/
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*/
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static int mmc_select_hs200(struct mmc_card *card)
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static int mmc_select_hs200(struct mmc_card *card)
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{
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{
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int idx, err = 0;
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int idx, err = -EINVAL;
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struct mmc_host *host;
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struct mmc_host *host;
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static unsigned ext_csd_bits[] = {
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static unsigned ext_csd_bits[] = {
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EXT_CSD_BUS_WIDTH_4,
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EXT_CSD_BUS_WIDTH_4,
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@ -745,9 +745,11 @@ static int mmc_select_hs200(struct mmc_card *card)
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if (card->ext_csd.card_type & EXT_CSD_CARD_TYPE_SDR_1_2V &&
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if (card->ext_csd.card_type & EXT_CSD_CARD_TYPE_SDR_1_2V &&
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host->caps2 & MMC_CAP2_HS200_1_2V_SDR)
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host->caps2 & MMC_CAP2_HS200_1_2V_SDR)
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if (mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_120, 0))
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err = mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_120, 0);
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err = mmc_set_signal_voltage(host,
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MMC_SIGNAL_VOLTAGE_180, 0);
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if (err && card->ext_csd.card_type & EXT_CSD_CARD_TYPE_SDR_1_8V &&
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host->caps2 & MMC_CAP2_HS200_1_8V_SDR)
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err = mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180, 0);
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/* If fails try again during next card power cycle */
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/* If fails try again during next card power cycle */
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if (err)
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if (err)
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