diff options
| author | Wolfram Sang | 2022-11-20 12:34:54 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2022-12-31 13:32:24 +0100 |
| commit | d87d565fec52e8c3b91b434eb4386e74ae26f8f0 (patch) | |
| tree | 44449b3a55be5da39a35279d30aa7d0004a228f0 | |
| parent | eb8431dc4b5a8f104f5414ce80d8df4f21bdffbd (diff) | |
mmc: renesas_sdhi: alway populate SCC pointer
[ Upstream commit 3d4f9898c1c74323dd61d6a8a0efca9401232ad4 ]
We need the SCC pointer to reset the device, so populate it even when we
don't need it for tuning.
Fixes: 45bffc371fef ("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>
| -rw-r--r-- | drivers/mmc/host/renesas_sdhi_core.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/mmc/host/renesas_sdhi_core.c b/drivers/mmc/host/renesas_sdhi_core.c index b970699743e0..22ccef7085f7 100644 --- a/drivers/mmc/host/renesas_sdhi_core.c +++ b/drivers/mmc/host/renesas_sdhi_core.c @@ -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; |