Merge tag 'for-3.19-rc' of...

Merge tag 'for-3.19-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-linus

Kishon writes:

misc fixes in PHY drivers

drivers/md/dm-thin.c

@@ -1127,6 +1127,24 @@ static void schedule_external_copy(struct thin_c *tc, dm_block_t virt_block,
 		schedule_zero(tc, virt_block, data_dest, cell, bio);
 }
 
+static void set_pool_mode(struct pool *pool, enum pool_mode new_mode);
+
+static void check_for_space(struct pool *pool)
+{
+	int r;
+	dm_block_t nr_free;
+
+	if (get_pool_mode(pool) != PM_OUT_OF_DATA_SPACE)
+		return;
+
+	r = dm_pool_get_free_block_count(pool->pmd, &nr_free);
+	if (r)
+		return;
+
+	if (nr_free)
+		set_pool_mode(pool, PM_WRITE);
+}
+
 /*
  * A non-zero return indicates read_only or fail_io mode.
  * Many callers don't care about the return value.
@@ -1141,6 +1159,8 @@ static int commit(struct pool *pool)
 	r = dm_pool_commit_metadata(pool->pmd);
 	if (r)
 		metadata_operation_failed(pool, "dm_pool_commit_metadata", r);
+	else
+		check_for_space(pool);
 
 	return r;
 }
@@ -1159,8 +1179,6 @@ static void check_low_water_mark(struct pool *pool, dm_block_t free_blocks)
 	}
 }
 
-static void set_pool_mode(struct pool *pool, enum pool_mode new_mode);
-
 static int alloc_data_block(struct thin_c *tc, dm_block_t *result)
 {
 	int r;
@@ -2155,7 +2173,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
 		pool->process_cell = process_cell_read_only;
 		pool->process_discard_cell = process_discard_cell;
 		pool->process_prepared_mapping = process_prepared_mapping;
-		pool->process_prepared_discard = process_prepared_discard_passdown;
+		pool->process_prepared_discard = process_prepared_discard;
 
 		if (!pool->pf.error_if_no_space && no_space_timeout)
 			queue_delayed_work(pool->wq, &pool->no_space_timeout, no_space_timeout);
@@ -3814,6 +3832,8 @@ static int thin_ctr(struct dm_target *ti, unsigned argc, char **argv)
 		r = -EINVAL;
 		goto bad;
 	}
+	atomic_set(&tc->refcount, 1);
+	init_completion(&tc->can_destroy);
 	list_add_tail_rcu(&tc->list, &tc->pool->active_thins);
 	spin_unlock_irqrestore(&tc->pool->lock, flags);
 	/*
@@ -3826,9 +3846,6 @@ static int thin_ctr(struct dm_target *ti, unsigned argc, char **argv)
 
 	dm_put(pool_md);
 
-	atomic_set(&tc->refcount, 1);
-	init_completion(&tc->can_destroy);
-
 	return 0;
 
 bad:

drivers/md/dm.c

@@ -899,7 +899,7 @@ static void disable_write_same(struct mapped_device *md)
 
 static void clone_endio(struct bio *bio, int error)
 {
-	int r = 0;
+	int r = error;
 	struct dm_target_io *tio = container_of(bio, struct dm_target_io, clone);
 	struct dm_io *io = tio->io;
 	struct mapped_device *md = tio->io->md;

drivers/phy/phy-miphy28lp.c

@@ -1050,7 +1050,8 @@ static int miphy28lp_init(struct phy *phy)
 		ret = miphy28lp_init_usb3(miphy_phy);
 		break;
 	default:
-		return -EINVAL;
+		ret = -EINVAL;
+		break;
 	}
 
 	mutex_unlock(&miphy_dev->miphy_mutex);

drivers/phy/phy-omap-control.c

@@ -29,10 +29,9 @@
 /**
  * omap_control_pcie_pcs - set the PCS delay count
  * @dev: the control module device
- * @id: index of the pcie PHY (should be 1 or 2)
  * @delay: 8 bit delay value
  */
-void omap_control_pcie_pcs(struct device *dev, u8 id, u8 delay)
+void omap_control_pcie_pcs(struct device *dev, u8 delay)
 {
 	u32 val;
 	struct omap_control_phy	*control_phy;
@@ -55,8 +54,8 @@ void omap_control_pcie_pcs(struct device *dev, u8 id, u8 delay)
 
 	val = readl(control_phy->pcie_pcs);
 	val &= ~(OMAP_CTRL_PCIE_PCS_MASK <<
-		(id * OMAP_CTRL_PCIE_PCS_DELAY_COUNT_SHIFT));
-	val |= delay << (id * OMAP_CTRL_PCIE_PCS_DELAY_COUNT_SHIFT);
+		OMAP_CTRL_PCIE_PCS_DELAY_COUNT_SHIFT);
+	val |= (delay << OMAP_CTRL_PCIE_PCS_DELAY_COUNT_SHIFT);
 	writel(val, control_phy->pcie_pcs);
 }
 EXPORT_SYMBOL_GPL(omap_control_pcie_pcs);

drivers/phy/phy-sun4i-usb.c

@@ -244,7 +244,8 @@ static int sun4i_usb_phy_probe(struct platform_device *pdev)
 	else
 		data->num_phys = 3;
 
-	if (of_device_is_compatible(np, "allwinner,sun4i-a10-usb-phy"))
+	if (of_device_is_compatible(np, "allwinner,sun4i-a10-usb-phy") ||
+	    of_device_is_compatible(np, "allwinner,sun6i-a31-usb-phy"))
 		data->disc_thresh = 3;
 	else
 		data->disc_thresh = 2;

drivers/phy/phy-ti-pipe3.c

@@ -82,7 +82,6 @@ struct ti_pipe3 {
 	struct clk		*refclk;
 	struct clk		*div_clk;
 	struct pipe3_dpll_map	*dpll_map;
-	u8			id;
 };
 
 static struct pipe3_dpll_map dpll_map_usb[] = {
@@ -217,8 +216,13 @@ static int ti_pipe3_init(struct phy *x)
 	u32 val;
 	int ret = 0;
 
+	/*
+	 * Set pcie_pcs register to 0x96 for proper functioning of phy
+	 * as recommended in AM572x TRM SPRUHZ6, section 18.5.2.2, table
+	 * 18-1804.
+	 */
 	if (of_device_is_compatible(phy->dev->of_node, "ti,phy-pipe3-pcie")) {
-		omap_control_pcie_pcs(phy->control_dev, phy->id, 0xF1);
+		omap_control_pcie_pcs(phy->control_dev, 0x96);
 		return 0;
 	}
 
@@ -347,8 +351,6 @@ static int ti_pipe3_probe(struct platform_device *pdev)
 	}
 
 	if (of_device_is_compatible(node, "ti,phy-pipe3-pcie")) {
-		if (of_property_read_u8(node, "id", &phy->id) < 0)
-			phy->id = 1;
 
 		clk = devm_clk_get(phy->dev, "dpll_ref");
 		if (IS_ERR(clk)) {

include/linux/phy/omap_control_phy.h

@@ -66,7 +66,7 @@ enum omap_control_usb_mode {
 #define	OMAP_CTRL_PIPE3_PHY_TX_RX_POWEROFF	0x0
 
 #define	OMAP_CTRL_PCIE_PCS_MASK			0xff
-#define	OMAP_CTRL_PCIE_PCS_DELAY_COUNT_SHIFT	0x8
+#define	OMAP_CTRL_PCIE_PCS_DELAY_COUNT_SHIFT	16
 
 #define OMAP_CTRL_USB2_PHY_PD		BIT(28)
 
@@ -79,7 +79,7 @@ enum omap_control_usb_mode {
 void omap_control_phy_power(struct device *dev, int on);
 void omap_control_usb_set_mode(struct device *dev,
 			       enum omap_control_usb_mode mode);
-void omap_control_pcie_pcs(struct device *dev, u8 id, u8 delay);
+void omap_control_pcie_pcs(struct device *dev, u8 delay);
 #else
 
 static inline void omap_control_phy_power(struct device *dev, int on)
@@ -91,7 +91,7 @@ static inline void omap_control_usb_set_mode(struct device *dev,
 {
 }
 
-static inline void omap_control_pcie_pcs(struct device *dev, u8 id, u8 delay)
+static inline void omap_control_pcie_pcs(struct device *dev, u8 delay)
 {
 }
 #endif

mm/memory.c

@@ -2378,12 +2378,12 @@ void unmap_mapping_range(struct address_space *mapping,
 		details.last_index = ULONG_MAX;
 
 
-	i_mmap_lock_read(mapping);
+	i_mmap_lock_write(mapping);
 	if (unlikely(!RB_EMPTY_ROOT(&mapping->i_mmap)))
 		unmap_mapping_range_tree(&mapping->i_mmap, &details);
 	if (unlikely(!list_empty(&mapping->i_mmap_nonlinear)))
 		unmap_mapping_range_list(&mapping->i_mmap_nonlinear, &details);
-	i_mmap_unlock_read(mapping);
+	i_mmap_unlock_write(mapping);
 }
 EXPORT_SYMBOL(unmap_mapping_range);