ANDROID: mmc: sdio: Add high speed support to sdio_reset_comm() (48ed6faf) · Commits · e / devices / android_kernel_fairphone_FP3

drivers/mmc/core/sdio.c

+22 −1

Original line number	Diff line number	Diff line
		@@ -1261,7 +1261,28 @@ int sdio_reset_comm(struct mmc_card *card)
		goto err;
		}

		/*
		* Switch to high-speed (if supported).
		*/
		err = sdio_enable_hs(card);
		if (err)
		goto err;

		/*
		* Change to the card's maximum speed.
		*/
		if (mmc_card_highspeed(card)) {
		/*
		* The SDIO specification doesn't mention how
		* the CIS transfer speed register relates to
		* high-speed, but it seems that 50 MHz is
		* mandatory.
		*/
		mmc_set_clock(host, 50000000);
		} else {
		mmc_set_clock(host, card->cis.max_dtr);
		}

		err = sdio_enable_wide(card);
		if (err)
		goto err;