Commit 75f349a1 authored by Masaharu Hayakawa's avatar Masaharu Hayakawa Committed by Ulf Hansson
Browse files

mmc: renesas_sdhi: skip SCC error check when retuning 



Checking for SCC error during retuning is unnecessary.

Signed-off-by: default avatarMasaharu Hayakawa <masaharu.hayakawa.ry@renesas.com>
[Niklas: fix small style issue]
Signed-off-by: default avatarNiklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: default avatarWolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: default avatarWolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent cbf6d82c

drivers/mmc/host/renesas_sdhi_core.c

+13 −0
Original line number Diff line number Diff line
@@ -486,6 +486,19 @@ static int renesas_sdhi_select_tuning(struct tmio_mmc_host *host) 
static bool renesas_sdhi_check_scc_error(struct tmio_mmc_host *host)

{

	struct renesas_sdhi *priv = host_to_priv(host);

	bool use_4tap = host->pdata->flags & TMIO_MMC_HAVE_4TAP_HS400;



	/*

	 * Skip checking SCC errors when running on 4 taps in HS400 mode as

	 * any retuning would still result in the same 4 taps being used.

	 */

	if (!(host->mmc->ios.timing == MMC_TIMING_UHS_SDR104) &&

	    !(host->mmc->ios.timing == MMC_TIMING_MMC_HS200) &&

	    !(host->mmc->ios.timing == MMC_TIMING_MMC_HS400 && !use_4tap))

		return false;



	if (mmc_doing_retune(host->mmc))

		return false;



	/* Check SCC error */

	if (sd_scc_read32(host, priv, SH_MOBILE_SDHI_SCC_RVSCNTL) &

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