linux-kernel - [PATCH 4.13 36/85] mmc: sdhci-pci: Fix default d3

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Message-Id: <20171024125655.448075176@linuxfoundation.org>
Date:   Tue, 24 Oct 2017 15:07:10 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Adrian Hunter <adrian.hunter@...el.com>,
        Ulf Hansson <ulf.hansson@...aro.org>
Subject: [PATCH 4.13 36/85] mmc: sdhci-pci: Fix default d3_retune for Intel host controllers

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

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

From: Adrian Hunter <adrian.hunter@...el.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@...el.com>
Fixes: c959a6b00ff5 ("mmc: sdhci-pci: Don't re-tune with runtime pm for some Intel devices")
Reported-and-tested-by: ojab <ojab@...b.ru>
Signed-off-by: Ulf Hansson <ulf.hansson@...aro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.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",