[E] [PATCH 1/3] Revert "UBUNTU: SAUCE: mfd: intel-lpss: add quirk for Dell XPS 13 7390 2-in-1"

[Kai-Heng Feng]

BugLink: https://bugs.launchpad.net/bugs/1851901

This reverts commit a775c979b22b20b39e99eb0ed111f443423a6561.

Signed-off-by: Kai-Heng Feng <kai.heng.feng at canonical.com>
---
 drivers/mfd/intel-lpss.c | 20 ++------------------
 include/linux/io.h       |  2 --
 lib/devres.c             | 20 --------------------
 3 files changed, 2 insertions(+), 40 deletions(-)

diff --git a/drivers/mfd/intel-lpss.c b/drivers/mfd/intel-lpss.c
index 5223aba7ba1d..277f48f1cc1c 100644
--- a/drivers/mfd/intel-lpss.c
+++ b/drivers/mfd/intel-lpss.c
@@ -14,7 +14,6 @@
 #include <linux/clkdev.h>
 #include <linux/clk-provider.h>
 #include <linux/debugfs.h>
-#include <linux/dmi.h>
 #include <linux/idr.h>
 #include <linux/io.h>
 #include <linux/ioport.h>
@@ -129,17 +128,6 @@ static const struct mfd_cell intel_lpss_spi_cell = {
 static DEFINE_IDA(intel_lpss_devid_ida);
 static struct dentry *intel_lpss_debugfs;
 
-static const struct dmi_system_id mtrr_large_wc_region[] = {
-	{
-		.ident = "Dell Computer Corporation",
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 7390 2-in-1"),
-		},
-	},
-	{ }
-};
-
 static int intel_lpss_request_dma_module(const char *name)
 {
 	static bool intel_lpss_dma_requested;
@@ -407,12 +395,8 @@ int intel_lpss_probe(struct device *dev,
 	if (!lpss)
 		return -ENOMEM;
 
-	if (dmi_check_system(mtrr_large_wc_region))
-		lpss->priv = devm_ioremap_uc(dev, info->mem->start + LPSS_PRIV_OFFSET,
-					     LPSS_PRIV_SIZE);
-	else
-		lpss->priv = devm_ioremap(dev, info->mem->start + LPSS_PRIV_OFFSET,
-					  LPSS_PRIV_SIZE);
+	lpss->priv = devm_ioremap(dev, info->mem->start + LPSS_PRIV_OFFSET,
+				  LPSS_PRIV_SIZE);
 	if (!lpss->priv)
 		return -ENOMEM;
 
diff --git a/include/linux/io.h b/include/linux/io.h
index a59834bc0a11..accac822336a 100644
--- a/include/linux/io.h
+++ b/include/linux/io.h
@@ -64,8 +64,6 @@ static inline void devm_ioport_unmap(struct device *dev, void __iomem *addr)
 
 void __iomem *devm_ioremap(struct device *dev, resource_size_t offset,
 			   resource_size_t size);
-void __iomem *devm_ioremap_uc(struct device *dev, resource_size_t offset,
-				   resource_size_t size);
 void __iomem *devm_ioremap_nocache(struct device *dev, resource_size_t offset,
 				   resource_size_t size);
 void __iomem *devm_ioremap_wc(struct device *dev, resource_size_t offset,
diff --git a/lib/devres.c b/lib/devres.c
index ca4a18f71798..6a0e9bd6524a 100644
--- a/lib/devres.c
+++ b/lib/devres.c
@@ -9,7 +9,6 @@
 enum devm_ioremap_type {
 	DEVM_IOREMAP = 0,
 	DEVM_IOREMAP_NC,
-	DEVM_IOREMAP_UC,
 	DEVM_IOREMAP_WC,
 };
 
@@ -40,9 +39,6 @@ static void __iomem *__devm_ioremap(struct device *dev, resource_size_t offset,
 	case DEVM_IOREMAP_NC:
 		addr = ioremap_nocache(offset, size);
 		break;
-	case DEVM_IOREMAP_UC:
-		addr = ioremap_uc(offset, size);
-		break;
 	case DEVM_IOREMAP_WC:
 		addr = ioremap_wc(offset, size);
 		break;
@@ -72,22 +68,6 @@ void __iomem *devm_ioremap(struct device *dev, resource_size_t offset,
 }
 EXPORT_SYMBOL(devm_ioremap);
 
-/**
- * devm_ioremap_uc - Managed ioremap_uc()
- * @dev: Generic device to remap IO address for
- * @offset: Resource address to map
- * @size: Size of map
- *
- * Managed ioremap_uc().  Map is automatically unmapped on driver detach.
- */
-void __iomem *devm_ioremap_uc(struct device *dev, resource_size_t offset,
-			      resource_size_t size)
-{
-	return __devm_ioremap(dev, offset, size, DEVM_IOREMAP_UC);
-}
-EXPORT_SYMBOL(devm_ioremap_uc);
-
-
 /**
  * devm_ioremap_nocache - Managed ioremap_nocache()
  * @dev: Generic device to remap IO address for
-- 
2.17.1