- if (clk_en_a & clken_low_pwr) {
- mci_writel(host, CLKENA, clk_en_a & ~clken_low_pwr);
- mci_send_cmd(slot, SDMMC_CMD_UPD_CLK |
- SDMMC_CMD_PRV_DAT_WAIT, 0);
+ clk_en_a_old = mci_readl(host, CLKENA);
+
+ if (card->type == MMC_TYPE_SDIO ||
+ card->type == MMC_TYPE_SD_COMBO) {
+ set_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags);
+ clk_en_a = clk_en_a_old & ~clken_low_pwr;
+ } else {
+ clear_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags);
+ clk_en_a = clk_en_a_old | clken_low_pwr;
+ }
+
+ if (clk_en_a != clk_en_a_old) {
+ mci_writel(host, CLKENA, clk_en_a);
+ mci_send_cmd(slot, SDMMC_CMD_UPD_CLK |
+ SDMMC_CMD_PRV_DAT_WAIT, 0);
+ }