Thread (88 messages) 88 messages, 4 authors, 2017-10-30
STALE3157d

[PATCH 4.13 36/85] mmc: sdhci-pci: Fix default d3_retune for Intel host controllers

From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2017-10-24 13:30:41
Also in: lkml

4.13-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Adrian Hunter <adrian.hunter@intel.com>

commit eb701ce16a45ed9880897c48f05ee608d77c72e3 upstream.

The default for d3_retune is true, but that was not being set in all cases,
which results in eMMC errors because re-tuning has not been done.
Fix by initializing d3_retune to true.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Fixes: c959a6b00ff5 ("mmc: sdhci-pci: Don't re-tune with runtime pm for some Intel devices")
Reported-and-tested-by: ojab <redacted>
Signed-off-by: Ulf Hansson <redacted>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/mmc/host/sdhci-pci-core.c |    2 ++
 1 file changed, 2 insertions(+)
--- a/drivers/mmc/host/sdhci-pci-core.c
+++ b/drivers/mmc/host/sdhci-pci-core.c
@@ -449,6 +449,8 @@ static void intel_dsm_init(struct intel_
 	int err;
 	u32 val;
 
+	intel_host->d3_retune = true;
+
 	err = __intel_dsm(intel_host, dev, INTEL_DSM_FNS, &intel_host->dsm_fns);
 	if (err) {
 		pr_debug("%s: DSM not supported, error %d\n",
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