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mmc: renesas_sdhi: alway populate SCC pointer

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[ Upstream commit 3d4f9898c1 ]

We need the SCC pointer to reset the device, so populate it even when we
don't need it for tuning.

Fixes: 45bffc371f ("mmc: renesas_sdhi: only reset SCC when its pointer is populated")
Signed-off-by: Takeshi Saito <takeshi.saito.xv@renesas.com>
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/20221120113457.42010-2-wsa+renesas@sang-engineering.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Wolfram Sang 2022-11-20 12:34:54 +01:00 committed by Greg Kroah-Hartman
parent aba2a8f639
commit 93fc05ec59
1 changed files with 7 additions and 5 deletions
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12
drivers/mmc/host/renesas_sdhi_core.c
View file

@ -1068,11 +1068,14 @@ int renesas_sdhi_probe(struct platform_device *pdev,
if (ver >= SDHI_VER_GEN3_SD)
host->get_timeout_cycles = renesas_sdhi_gen3_get_cycles;
/* Check for SCC so we can reset it if needed */
if (of_data && of_data->scc_offset && ver >= SDHI_VER_GEN2_SDR104)
priv->scc_ctl = host->ctl + of_data->scc_offset;
/* Enable tuning iff we have an SCC and a supported mode */
if (of_data && of_data->scc_offset &&
(host->mmc->caps & MMC_CAP_UHS_SDR104 ||
host->mmc->caps2 & (MMC_CAP2_HS200_1_8V_SDR |
MMC_CAP2_HS400_1_8V))) {
if (priv->scc_ctl && (host->mmc->caps & MMC_CAP_UHS_SDR104 ||
host->mmc->caps2 & (MMC_CAP2_HS200_1_8V_SDR |
MMC_CAP2_HS400_1_8V))) {
const struct renesas_sdhi_scc *taps = of_data->taps;
bool use_4tap = quirks && quirks->hs400_4taps;
bool hit = false;
@ -1092,7 +1095,6 @@ int renesas_sdhi_probe(struct platform_device *pdev,
if (!hit)
dev_warn(&host->pdev->dev, "Unknown clock rate for tuning\n");
priv->scc_ctl = host->ctl + of_data->scc_offset;
host->check_retune = renesas_sdhi_check_scc_error;
host->ops.execute_tuning = renesas_sdhi_execute_tuning;
host->ops.prepare_hs400_tuning = renesas_sdhi_prepare_hs400_tuning;