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Message-Id: <20221218161559.932604-37-sashal@kernel.org>
Date: Sun, 18 Dec 2022 11:15:57 -0500
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc: Wolfram Sang <wsa+renesas@...g-engineering.com>,
Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
Ulf Hansson <ulf.hansson@...aro.org>,
Sasha Levin <sashal@...nel.org>, linux-mmc@...r.kernel.org,
linux-renesas-soc@...r.kernel.org
Subject: [PATCH AUTOSEL 5.10 37/39] mmc: renesas_sdhi: better reset from HS400 mode
From: Wolfram Sang <wsa+renesas@...g-engineering.com>
[ Upstream commit 0da69dd2155019ed4c444ede0e79ce7a4a6af627 ]
Up to now, HS400 adjustment mode was only disabled on soft reset when a
calibration table was in use. It is safer, though, to disable it as soon
as the instance has an adjustment related quirk set, i.e. bad taps or a
calibration table.
Signed-off-by: Wolfram Sang <wsa+renesas@...g-engineering.com>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
Link: https://lore.kernel.org/r/20221120113457.42010-3-wsa+renesas@sang-engineering.com
Signed-off-by: Ulf Hansson <ulf.hansson@...aro.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
drivers/mmc/host/renesas_sdhi_core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mmc/host/renesas_sdhi_core.c b/drivers/mmc/host/renesas_sdhi_core.c
index ac01fb518386..a49b8fe2a098 100644
--- a/drivers/mmc/host/renesas_sdhi_core.c
+++ b/drivers/mmc/host/renesas_sdhi_core.c
@@ -537,7 +537,7 @@ static void renesas_sdhi_reset_hs400_mode(struct tmio_mmc_host *host,
SH_MOBILE_SDHI_SCC_TMPPORT2_HS400OSEL) &
sd_scc_read32(host, priv, SH_MOBILE_SDHI_SCC_TMPPORT2));
- if (priv->adjust_hs400_calib_table)
+ if (priv->quirks && (priv->quirks->hs400_calib_table || priv->quirks->hs400_bad_taps))
renesas_sdhi_adjust_hs400_mode_disable(host);
sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, CLK_CTL_SCLKEN |
--
2.35.1
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