Patch "mmc: sdhci: Allow override of mmc host operations" has been added to the 4.4-stable tree

This is a note to let you know that I've just added the patch titled

mmc: sdhci: Allow override of mmc host operations

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
mmc-sdhci-allow-override-of-mmc-host-operations.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Adrian Hunter <[email protected]>
Date: Tue, 9 Feb 2016 16:12:35 +0200
Subject: mmc: sdhci: Allow override of mmc host operations

From: Adrian Hunter <[email protected]>

commit bf60e592a1af4d6f65dd54593250183f14360eed upstream.

In the past, fixes for specific hardware devices were implemented in sdhci using quirks. That approach is no longer accepted because the growing number of quirks was starting to make the code difficult to understand and maintain.

One alternative to quirks, is to allow drivers to override the default mmc host operations. This patch makes it easy to do that, and it is needed for a subsequent bug fix, for which separate patches are provided.

---
 drivers/mmc/host/sdhci.c |    3 ++-
 drivers/mmc/host/sdhci.h |    1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

@@ -2864,6 +2864,8 @@ struct sdhci_host *sdhci_alloc_host(stru
 
 	host = mmc_priv(mmc);
 	host->mmc = mmc;
+	host->mmc_host_ops = sdhci_ops;
+	mmc->ops = &host->mmc_host_ops;
 
 	return host;
 }

@@ -3060,7 +3062,6 @@ int sdhci_add_host(struct sdhci_host *ho
 	/*
 	 * Set host parameters.
 	 */
-	mmc->ops = &sdhci_ops;
 	max_clk = host->max_clk;
 
 	if (host->ops->get_min_clock)

@@ -425,6 +425,7 @@ struct sdhci_host {
 
 	/* Internal data */
 	struct mmc_host *mmc;	/* MMC structure */
+	struct mmc_host_ops mmc_host_ops;	/* MMC host ops */
 	u64 dma_mask;		/* custom DMA mask */
 
 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/mmc-sdhci-acpi-fix-card-detect-race-for-intel-bxt-apl.patch queue-4.4/mmc-mmc-fix-incorrect-use-of-driver-strength-switching-hs200-and-hs400.patch queue-4.4/mmc-sdhci-allow-override-of-get_cd-called-from-sdhci_request.patch queue-4.4/mmc-sdhci-pci-do-not-default-to-33-ohm-driver-strength-for-intel-spt.patch queue-4.4/mmc-sdio-fix-invalid-vdd-in-voltage-switch-power-cycle.patch queue-4.4/mmc-sdhci-fix-sdhci_runtime_pm_bus_on-off.patch queue-4.4/mmc-sdhci-allow-override-of-mmc-host-operations.patch queue-4.4/mmc-sdhci-fix-dma-descriptor-with-zero-data-length.patch queue-4.4/mmc-sdhci-pci-fix-card-detect-race-for-intel-bxt-apl.patch