mmc: sdhci-msm: Enable restore_dll_config flag for sc7180 target

On sc7180 target, issues are observed with HS400 mode due to a
hardware limitation. If sdcc clock is dynamically gated and ungated,
the very next command is failing with command CRC/timeout errors.

To mitigate this issue, DLL phase has to be restored whenever sdcc
clock is gated dynamically. The restore_dll_config ensures this.
Enabling this flag with this change. And simply re-using the sdm845
target configuration for this flag.

Signed-off-by: Veerabhadrarao Badiganti <vbadigan@codeaurora.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/1598541694-15694-1-git-send-email-vbadigan@codeaurora.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
index 5a33389..d4c0288 100644 (file)
--- a/drivers/mmc/host/sdhci-msm.c
+++ b/drivers/mmc/host/sdhci-msm.c
@@ -2151,6 +2151,7 @@ static const struct of_device_id sdhci_msm_dt_match[] = {
        {.compatible = "qcom,sdhci-msm-v5", .data = &sdhci_msm_v5_var},
        {.compatible = "qcom,sdm845-sdhci", .data = &sdm845_sdhci_var},
        {.compatible = "qcom,sm8250-sdhci", .data = &sm8250_sdhci_var},
+       {.compatible = "qcom,sc7180-sdhci", .data = &sdm845_sdhci_var},
        {},
 };