From 809090e8e212c88fe011452b827d7a9a7e9c914b Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Tue, 27 Nov 2018 13:58:33 +0200
Subject: [PATCH] mmc: sdhci-pci: Add max-frequency device property for Intel
controllers
Add support for the mmc max-frequency device property for Intel BYT-based
host controllers.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
drivers/mmc/host/sdhci-pci-core.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/mmc/host/sdhci-pci-core.c b/drivers/mmc/host/sdhci-pci-core.c
index c4115bae5db18..5fe48d0f5c7e2 100644
--- a/drivers/mmc/host/sdhci-pci-core.c
+++ b/drivers/mmc/host/sdhci-pci-core.c
@@ -710,11 +710,15 @@ static int intel_execute_tuning(struct mmc_host *mmc, u32 opcode)
static void byt_probe_slot(struct sdhci_pci_slot *slot)
{
struct mmc_host_ops *ops = &slot->host->mmc_host_ops;
+ struct device *dev = &slot->chip->pdev->dev;
+ struct mmc_host *mmc = slot->host->mmc;
byt_read_dsm(slot);
ops->execute_tuning = intel_execute_tuning;
ops->start_signal_voltage_switch = intel_start_signal_voltage_switch;
+
+ device_property_read_u32(dev, "max-frequency", &mmc->f_max);
}
static int byt_emmc_probe_slot(struct sdhci_pci_slot *slot)
--
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