diff --git a/Documentation/spi/spi-lm70llp.rst b/Documentation/spi/spi-lm70llp.rst
index 2f20e5b..ff98ddc 100644
--- a/Documentation/spi/spi-lm70llp.rst
+++ b/Documentation/spi/spi-lm70llp.rst
@@ -6,7 +6,7 @@
 
   * National Semiconductor LM70 LLP evaluation board
 
-    Datasheet: http://www.national.com/pf/LM/LM70.html
+    Datasheet: https://www.ti.com/lit/gpn/lm70
 
 Author:
         Kaiwan N Billimoria <kaiwan@designergraphix.com>
@@ -28,7 +28,7 @@
 The schematic for this particular board (the LM70EVAL-LLP) is
 available (on page 4) here:
 
-  http://www.national.com/appinfo/tempsensors/files/LM70LLPEVALmanual.pdf
+  https://download.datasheets.com/pdfs/documentation/nat/kit&board/lm70llpevalmanual.pdf
 
 The hardware interfacing on the LM70 LLP eval board is as follows:
 
diff --git a/Documentation/spi/spidev.rst b/Documentation/spi/spidev.rst
index 369c657..e08b301 100644
--- a/Documentation/spi/spidev.rst
+++ b/Documentation/spi/spidev.rst
@@ -61,7 +61,7 @@
 
 Sysfs also supports userspace driven binding/unbinding of drivers to
 devices that do not bind automatically using one of the tables above.
-To make the spidev driver bind to such a device, use the following:
+To make the spidev driver bind to such a device, use the following::
 
     echo spidev > /sys/bus/spi/devices/spiB.C/driver_override
     echo spiB.C > /sys/bus/spi/drivers/spidev/bind
diff --git a/drivers/spi/spi-fsl-lpspi.c b/drivers/spi/spi-fsl-lpspi.c
index 11991eb..079035d 100644
--- a/drivers/spi/spi-fsl-lpspi.c
+++ b/drivers/spi/spi-fsl-lpspi.c
@@ -830,11 +830,11 @@
 
 	is_target = of_property_read_bool((&pdev->dev)->of_node, "spi-slave");
 	if (is_target)
-		controller = spi_alloc_target(&pdev->dev,
-					      sizeof(struct fsl_lpspi_data));
+		controller = devm_spi_alloc_target(&pdev->dev,
+						   sizeof(struct fsl_lpspi_data));
 	else
-		controller = spi_alloc_host(&pdev->dev,
-					    sizeof(struct fsl_lpspi_data));
+		controller = devm_spi_alloc_host(&pdev->dev,
+						 sizeof(struct fsl_lpspi_data));
 
 	if (!controller)
 		return -ENOMEM;
diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
index 833a1bb..c3e5cee 100644
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -668,8 +668,8 @@
 				ctrl |= (MX51_ECSPI_CTRL_MAX_BURST * BITS_PER_BYTE - 1)
 						<< MX51_ECSPI_CTRL_BL_OFFSET;
 			else
-				ctrl |= spi_imx->count / DIV_ROUND_UP(spi_imx->bits_per_word,
-						BITS_PER_BYTE) * spi_imx->bits_per_word
+				ctrl |= (spi_imx->count / DIV_ROUND_UP(spi_imx->bits_per_word,
+						BITS_PER_BYTE) * spi_imx->bits_per_word - 1)
 						<< MX51_ECSPI_CTRL_BL_OFFSET;
 		}
 	}
diff --git a/drivers/spi/spi-lm70llp.c b/drivers/spi/spi-lm70llp.c
index f982bde..3c0c24e 100644
--- a/drivers/spi/spi-lm70llp.c
+++ b/drivers/spi/spi-lm70llp.c
@@ -29,10 +29,10 @@
  *
  * Datasheet and Schematic:
  * The LM70 is a temperature sensor chip from National Semiconductor; its
- * datasheet is available at http://www.national.com/pf/LM/LM70.html
+ * datasheet is available at https://www.ti.com/lit/gpn/lm70
  * The schematic for this particular board (the LM70EVAL-LLP) is
  * available (on page 4) here:
- *  http://www.national.com/appinfo/tempsensors/files/LM70LLPEVALmanual.pdf
+ *  https://download.datasheets.com/pdfs/documentation/nat/kit&board/lm70llpevalmanual.pdf
  *
  * Also see Documentation/spi/spi-lm70llp.rst.  The SPI<->parport code here is
  * (heavily) based on spi-butterfly by David Brownell.
diff --git a/drivers/spi/spi-mem.c b/drivers/spi/spi-mem.c
index c9d6d42..17b8baf 100644
--- a/drivers/spi/spi-mem.c
+++ b/drivers/spi/spi-mem.c
@@ -382,7 +382,7 @@
 		 * read path) and expect the core to use the regular SPI
 		 * interface in other cases.
 		 */
-		if (!ret || ret != -ENOTSUPP || ret != -EOPNOTSUPP) {
+		if (!ret || (ret != -ENOTSUPP && ret != -EOPNOTSUPP)) {
 			spi_mem_add_op_stats(ctlr->pcpu_statistics, op, ret);
 			spi_mem_add_op_stats(mem->spi->pcpu_statistics, op, ret);
 
diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c
index 8d4633b..e4cb22f 100644
--- a/drivers/spi/spi-mt65xx.c
+++ b/drivers/spi/spi-mt65xx.c
@@ -788,17 +788,19 @@
 		mdata->xfer_len = min(MTK_SPI_MAX_FIFO_SIZE, len);
 		mtk_spi_setup_packet(host);
 
-		cnt = mdata->xfer_len / 4;
-		iowrite32_rep(mdata->base + SPI_TX_DATA_REG,
-				trans->tx_buf + mdata->num_xfered, cnt);
+		if (trans->tx_buf) {
+			cnt = mdata->xfer_len / 4;
+			iowrite32_rep(mdata->base + SPI_TX_DATA_REG,
+					trans->tx_buf + mdata->num_xfered, cnt);
 
-		remainder = mdata->xfer_len % 4;
-		if (remainder > 0) {
-			reg_val = 0;
-			memcpy(&reg_val,
-				trans->tx_buf + (cnt * 4) + mdata->num_xfered,
-				remainder);
-			writel(reg_val, mdata->base + SPI_TX_DATA_REG);
+			remainder = mdata->xfer_len % 4;
+			if (remainder > 0) {
+				reg_val = 0;
+				memcpy(&reg_val,
+					trans->tx_buf + (cnt * 4) + mdata->num_xfered,
+					remainder);
+				writel(reg_val, mdata->base + SPI_TX_DATA_REG);
+			}
 		}
 
 		mtk_spi_enable_transfer(host);
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index f18738a..ff75838 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -1063,10 +1063,14 @@
 	if (spi->mode & SPI_CS_HIGH)
 		enable = !enable;
 
-	if (spi_is_csgpiod(spi)) {
-		if (!spi->controller->set_cs_timing && !activate)
-			spi_delay_exec(&spi->cs_hold, NULL);
+	/*
+	 * Handle chip select delays for GPIO based CS or controllers without
+	 * programmable chip select timing.
+	 */
+	if ((spi_is_csgpiod(spi) || !spi->controller->set_cs_timing) && !activate)
+		spi_delay_exec(&spi->cs_hold, NULL);
 
+	if (spi_is_csgpiod(spi)) {
 		if (!(spi->mode & SPI_NO_CS)) {
 			/*
 			 * Historically ACPI has no means of the GPIO polarity and
@@ -1099,16 +1103,16 @@
 		if ((spi->controller->flags & SPI_CONTROLLER_GPIO_SS) &&
 		    spi->controller->set_cs)
 			spi->controller->set_cs(spi, !enable);
-
-		if (!spi->controller->set_cs_timing) {
-			if (activate)
-				spi_delay_exec(&spi->cs_setup, NULL);
-			else
-				spi_delay_exec(&spi->cs_inactive, NULL);
-		}
 	} else if (spi->controller->set_cs) {
 		spi->controller->set_cs(spi, !enable);
 	}
+
+	if (spi_is_csgpiod(spi) || !spi->controller->set_cs_timing) {
+		if (activate)
+			spi_delay_exec(&spi->cs_setup, NULL);
+		else
+			spi_delay_exec(&spi->cs_inactive, NULL);
+	}
 }
 
 #ifdef CONFIG_HAS_DMA