1 files changed, 68 insertions, 2 deletions

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 5f9aedd1f0b6..3cc7bb4d03de 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -127,10 +127,10 @@ do {									\
 		unsigned int start;					\
 		pcpu_stats = per_cpu_ptr(in, i);			\
 		do {							\
-			start = u64_stats_fetch_begin_irq(		\
+			start = u64_stats_fetch_begin(		\
 					&pcpu_stats->syncp);		\
 			inc = u64_stats_read(&pcpu_stats->field);	\
-		} while (u64_stats_fetch_retry_irq(			\
+		} while (u64_stats_fetch_retry(			\
 					&pcpu_stats->syncp, start));	\
 		ret += inc;						\
 	}								\
@@ -360,6 +360,18 @@ const struct spi_device_id *spi_get_device_id(const struct spi_device *sdev)
 }
 EXPORT_SYMBOL_GPL(spi_get_device_id);
 
+const void *spi_get_device_match_data(const struct spi_device *sdev)
+{
+	const void *match;
+
+	match = device_get_match_data(&sdev->dev);
+	if (match)
+		return match;
+
+	return (const void *)spi_get_device_id(sdev)->driver_data;
+}
+EXPORT_SYMBOL_GPL(spi_get_device_match_data);
+
 static int spi_match_device(struct device *dev, struct device_driver *drv)
 {
 	const struct spi_device	*spi = to_spi_device(dev);
@@ -2212,6 +2224,7 @@ static int of_spi_parse_dt(struct spi_controller *ctlr, struct spi_device *spi,
 			   struct device_node *nc)
 {
 	u32 value;
+	u16 cs_setup;
 	int rc;
 
 	/* Mode (clock phase/polarity/etc.) */
@@ -2297,6 +2310,11 @@ static int of_spi_parse_dt(struct spi_controller *ctlr, struct spi_device *spi,
 	if (!of_property_read_u32(nc, "spi-max-frequency", &value))
 		spi->max_speed_hz = value;
 
+	if (!of_property_read_u16(nc, "spi-cs-setup-ns", &cs_setup)) {
+		spi->cs_setup.value = cs_setup;
+		spi->cs_setup.unit = SPI_DELAY_UNIT_NSECS;
+	}
+
 	return 0;
 }
 
@@ -2759,6 +2777,17 @@ int spi_slave_abort(struct spi_device *spi)
 }
 EXPORT_SYMBOL_GPL(spi_slave_abort);
 
+int spi_target_abort(struct spi_device *spi)
+{
+	struct spi_controller *ctlr = spi->controller;
+
+	if (spi_controller_is_target(ctlr) && ctlr->target_abort)
+		return ctlr->target_abort(ctlr);
+
+	return -ENOTSUPP;
+}
+EXPORT_SYMBOL_GPL(spi_target_abort);
+
 static ssize_t slave_show(struct device *dev, struct device_attribute *attr,
 			  char *buf)
 {
@@ -3593,6 +3622,37 @@ static int __spi_validate_bits_per_word(struct spi_controller *ctlr,
 }
 
 /**
+ * spi_set_cs_timing - configure CS setup, hold, and inactive delays
+ * @spi: the device that requires specific CS timing configuration
+ *
+ * Return: zero on success, else a negative error code.
+ */
+static int spi_set_cs_timing(struct spi_device *spi)
+{
+	struct device *parent = spi->controller->dev.parent;
+	int status = 0;
+
+	if (spi->controller->set_cs_timing && !spi->cs_gpiod) {
+		if (spi->controller->auto_runtime_pm) {
+			status = pm_runtime_get_sync(parent);
+			if (status < 0) {
+				pm_runtime_put_noidle(parent);
+				dev_err(&spi->controller->dev, "Failed to power device: %d\n",
+					status);
+				return status;
+			}
+
+			status = spi->controller->set_cs_timing(spi);
+			pm_runtime_mark_last_busy(parent);
+			pm_runtime_put_autosuspend(parent);
+		} else {
+			status = spi->controller->set_cs_timing(spi);
+		}
+	}
+	return status;
+}
+
+/**
  * spi_setup - setup SPI mode and clock rate
  * @spi: the device whose settings are being modified
  * Context: can sleep, and no requests are queued to the device
@@ -3688,6 +3748,12 @@ int spi_setup(struct spi_device *spi)
 		}
 	}
 
+	status = spi_set_cs_timing(spi);
+	if (status) {
+		mutex_unlock(&spi->controller->io_mutex);
+		return status;
+	}
+
 	if (spi->controller->auto_runtime_pm && spi->controller->set_cs) {
 		status = pm_runtime_resume_and_get(spi->controller->dev.parent);
 		if (status < 0) {