[PATCH v2 1/2] mmc: renesas_sdhi: skip SCC error check when retuning

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Masaharu Hayakawa <masaharu.hayakawa.ry@xxxxxxxxxxx>

Checking for SCC error during retuning is unnecessary.

Signed-off-by: Masaharu Hayakawa <masaharu.hayakawa.ry@xxxxxxxxxxx>
[Niklas: fix small style issue]
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@xxxxxxxxxxxx>

---

* Changes since v1
- Use intermediate variable use_4tap to simplify check.
---
 drivers/mmc/host/renesas_sdhi_core.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/mmc/host/renesas_sdhi_core.c b/drivers/mmc/host/renesas_sdhi_core.c
index 777e32b0e410e850..66e90f233cefcba5 100644
--- a/drivers/mmc/host/renesas_sdhi_core.c
+++ b/drivers/mmc/host/renesas_sdhi_core.c
@@ -443,6 +443,15 @@ 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;
+
+	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 (host->mmc->doing_retune)
+		return false;
 
 	/* Check SCC error */
 	if (sd_scc_read32(host, priv, SH_MOBILE_SDHI_SCC_RVSCNTL) &
-- 
2.18.0




[Index of Archives]     [Linux Samsung SOC]     [Linux Wireless]     [Linux Kernel]     [ATH6KL]     [Linux Bluetooth]     [Linux Netdev]     [Kernel Newbies]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Samba]     [Device Mapper]

  Powered by Linux