[PATCH 1/2] SPI: moved the PL022 test chip out to the SPI subsystem
Linus Walleij
linus.walleij at stericsson.com
Sat Jul 10 20:43:09 EDT 2010
This moves the SPI test chip from the U300 architecture to the
SPI subsystem. This is where the code belongs: we want the
loopback test chip to be available to all users of PL022.
This just moves the file, the following patch makes it work
in the new location.
Signed-off-by: Linus Walleij <linus.walleij at stericsson.com>
---
arch/arm/mach-u300/dummyspichip.c | 291 -------------------------------------
drivers/spi/amba-pl022-looptest.c | 291 +++++++++++++++++++++++++++++++++++++
2 files changed, 291 insertions(+), 291 deletions(-)
delete mode 100644 arch/arm/mach-u300/dummyspichip.c
create mode 100644 drivers/spi/amba-pl022-looptest.c
diff --git a/arch/arm/mach-u300/dummyspichip.c b/arch/arm/mach-u300/dummyspichip.c
deleted file mode 100644
index 5f55012..0000000
--- a/arch/arm/mach-u300/dummyspichip.c
+++ /dev/null
@@ -1,291 +0,0 @@
-/*
- * arch/arm/mach-u300/dummyspichip.c
- *
- * Copyright (C) 2007-2009 ST-Ericsson AB
- * License terms: GNU General Public License (GPL) version 2
- * This is a dummy loopback SPI "chip" used for testing SPI.
- * Author: Linus Walleij <linus.walleij at stericsson.com>
- */
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/device.h>
-#include <linux/err.h>
-#include <linux/sysfs.h>
-#include <linux/mutex.h>
-#include <linux/spi/spi.h>
-#include <linux/dma-mapping.h>
-#include <linux/slab.h>
-/*
- * WARNING! Do not include this pl022-specific controller header
- * for any generic driver. It is only done in this dummy chip
- * because we alter the chip configuration in order to test some
- * different settings on the loopback device. Normal chip configs
- * shall be STATIC and not altered by the driver!
- */
-#include <linux/amba/pl022.h>
-
-struct dummy {
- struct device *dev;
- struct mutex lock;
-};
-
-#define DMA_TEST_SIZE 2048
-
-/* When we cat /sys/bus/spi/devices/spi0.0/looptest this will be triggered */
-static ssize_t dummy_looptest(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct spi_device *spi = to_spi_device(dev);
- struct dummy *p_dummy = dev_get_drvdata(&spi->dev);
-
- /*
- * WARNING! Do not dereference the chip-specific data in any normal
- * driver for a chip. It is usually STATIC and shall not be read
- * or written to. Your chip driver should NOT depend on fields in this
- * struct, this is just used here to alter the behaviour of the chip
- * in order to perform tests.
- */
- struct pl022_config_chip *chip_info = spi->controller_data;
- int status;
- u8 txbuf[14] = {0xDE, 0xAD, 0xBE, 0xEF, 0x2B, 0xAD,
- 0xCA, 0xFE, 0xBA, 0xBE, 0xB1, 0x05,
- 0xF0, 0x0D};
- u8 rxbuf[14];
- u8 *bigtxbuf_virtual;
- u8 *bigrxbuf_virtual;
-
- if (mutex_lock_interruptible(&p_dummy->lock))
- return -ERESTARTSYS;
-
- bigtxbuf_virtual = kmalloc(DMA_TEST_SIZE, GFP_KERNEL);
- if (bigtxbuf_virtual == NULL) {
- status = -ENOMEM;
- goto out;
- }
- bigrxbuf_virtual = kmalloc(DMA_TEST_SIZE, GFP_KERNEL);
-
- /* Fill TXBUF with some happy pattern */
- memset(bigtxbuf_virtual, 0xAA, DMA_TEST_SIZE);
-
- /*
- * Force chip to 8 bit mode
- * WARNING: NEVER DO THIS IN REAL DRIVER CODE, THIS SHOULD BE STATIC!
- */
- chip_info->data_size = SSP_DATA_BITS_8;
- /* You should NOT DO THIS EITHER */
- spi->master->setup(spi);
-
- /* Now run the tests for 8bit mode */
- pr_info("Simple test 1: write 0xAA byte, read back garbage byte "
- "in 8bit mode\n");
- status = spi_w8r8(spi, 0xAA);
- if (status < 0)
- pr_warning("Siple test 1: FAILURE: spi_write_then_read "
- "failed with status %d\n", status);
- else
- pr_info("Simple test 1: SUCCESS!\n");
-
- pr_info("Simple test 2: write 8 bytes, read back 8 bytes garbage "
- "in 8bit mode (full FIFO)\n");
- status = spi_write_then_read(spi, &txbuf[0], 8, &rxbuf[0], 8);
- if (status < 0)
- pr_warning("Simple test 2: FAILURE: spi_write_then_read() "
- "failed with status %d\n", status);
- else
- pr_info("Simple test 2: SUCCESS!\n");
-
- pr_info("Simple test 3: write 14 bytes, read back 14 bytes garbage "
- "in 8bit mode (see if we overflow FIFO)\n");
- status = spi_write_then_read(spi, &txbuf[0], 14, &rxbuf[0], 14);
- if (status < 0)
- pr_warning("Simple test 3: FAILURE: failed with status %d "
- "(probably FIFO overrun)\n", status);
- else
- pr_info("Simple test 3: SUCCESS!\n");
-
- pr_info("Simple test 4: write 8 bytes with spi_write(), read 8 "
- "bytes garbage with spi_read() in 8bit mode\n");
- status = spi_write(spi, &txbuf[0], 8);
- if (status < 0)
- pr_warning("Simple test 4 step 1: FAILURE: spi_write() "
- "failed with status %d\n", status);
- else
- pr_info("Simple test 4 step 1: SUCCESS!\n");
- status = spi_read(spi, &rxbuf[0], 8);
- if (status < 0)
- pr_warning("Simple test 4 step 2: FAILURE: spi_read() "
- "failed with status %d\n", status);
- else
- pr_info("Simple test 4 step 2: SUCCESS!\n");
-
- pr_info("Simple test 5: write 14 bytes with spi_write(), read "
- "14 bytes garbage with spi_read() in 8bit mode\n");
- status = spi_write(spi, &txbuf[0], 14);
- if (status < 0)
- pr_warning("Simple test 5 step 1: FAILURE: spi_write() "
- "failed with status %d (probably FIFO overrun)\n",
- status);
- else
- pr_info("Simple test 5 step 1: SUCCESS!\n");
- status = spi_read(spi, &rxbuf[0], 14);
- if (status < 0)
- pr_warning("Simple test 5 step 2: FAILURE: spi_read() "
- "failed with status %d (probably FIFO overrun)\n",
- status);
- else
- pr_info("Simple test 5: SUCCESS!\n");
-
- pr_info("Simple test 6: write %d bytes with spi_write(), "
- "read %d bytes garbage with spi_read() in 8bit mode\n",
- DMA_TEST_SIZE, DMA_TEST_SIZE);
- status = spi_write(spi, &bigtxbuf_virtual[0], DMA_TEST_SIZE);
- if (status < 0)
- pr_warning("Simple test 6 step 1: FAILURE: spi_write() "
- "failed with status %d (probably FIFO overrun)\n",
- status);
- else
- pr_info("Simple test 6 step 1: SUCCESS!\n");
- status = spi_read(spi, &bigrxbuf_virtual[0], DMA_TEST_SIZE);
- if (status < 0)
- pr_warning("Simple test 6 step 2: FAILURE: spi_read() "
- "failed with status %d (probably FIFO overrun)\n",
- status);
- else
- pr_info("Simple test 6: SUCCESS!\n");
-
-
- /*
- * Force chip to 16 bit mode
- * WARNING: NEVER DO THIS IN REAL DRIVER CODE, THIS SHOULD BE STATIC!
- */
- chip_info->data_size = SSP_DATA_BITS_16;
- /* You should NOT DO THIS EITHER */
- spi->master->setup(spi);
-
- pr_info("Simple test 7: write 0xAA byte, read back garbage byte "
- "in 16bit bus mode\n");
- status = spi_w8r8(spi, 0xAA);
- if (status == -EIO)
- pr_info("Simple test 7: SUCCESS! (expected failure with "
- "status EIO)\n");
- else if (status < 0)
- pr_warning("Siple test 7: FAILURE: spi_write_then_read "
- "failed with status %d\n", status);
- else
- pr_warning("Siple test 7: FAILURE: spi_write_then_read "
- "succeeded but it was expected to fail!\n");
-
- pr_info("Simple test 8: write 8 bytes, read back 8 bytes garbage "
- "in 16bit mode (full FIFO)\n");
- status = spi_write_then_read(spi, &txbuf[0], 8, &rxbuf[0], 8);
- if (status < 0)
- pr_warning("Simple test 8: FAILURE: spi_write_then_read() "
- "failed with status %d\n", status);
- else
- pr_info("Simple test 8: SUCCESS!\n");
-
- pr_info("Simple test 9: write 14 bytes, read back 14 bytes garbage "
- "in 16bit mode (see if we overflow FIFO)\n");
- status = spi_write_then_read(spi, &txbuf[0], 14, &rxbuf[0], 14);
- if (status < 0)
- pr_warning("Simple test 9: FAILURE: failed with status %d "
- "(probably FIFO overrun)\n", status);
- else
- pr_info("Simple test 9: SUCCESS!\n");
-
- pr_info("Simple test 10: write %d bytes with spi_write(), "
- "read %d bytes garbage with spi_read() in 16bit mode\n",
- DMA_TEST_SIZE, DMA_TEST_SIZE);
- status = spi_write(spi, &bigtxbuf_virtual[0], DMA_TEST_SIZE);
- if (status < 0)
- pr_warning("Simple test 10 step 1: FAILURE: spi_write() "
- "failed with status %d (probably FIFO overrun)\n",
- status);
- else
- pr_info("Simple test 10 step 1: SUCCESS!\n");
-
- status = spi_read(spi, &bigrxbuf_virtual[0], DMA_TEST_SIZE);
- if (status < 0)
- pr_warning("Simple test 10 step 2: FAILURE: spi_read() "
- "failed with status %d (probably FIFO overrun)\n",
- status);
- else
- pr_info("Simple test 10: SUCCESS!\n");
-
- status = sprintf(buf, "loop test complete\n");
- kfree(bigrxbuf_virtual);
- kfree(bigtxbuf_virtual);
- out:
- mutex_unlock(&p_dummy->lock);
- return status;
-}
-
-static DEVICE_ATTR(looptest, S_IRUGO, dummy_looptest, NULL);
-
-static int __devinit pl022_dummy_probe(struct spi_device *spi)
-{
- struct dummy *p_dummy;
- int status;
-
- dev_info(&spi->dev, "probing dummy SPI device\n");
-
- p_dummy = kzalloc(sizeof *p_dummy, GFP_KERNEL);
- if (!p_dummy)
- return -ENOMEM;
-
- dev_set_drvdata(&spi->dev, p_dummy);
- mutex_init(&p_dummy->lock);
-
- /* sysfs hook */
- status = device_create_file(&spi->dev, &dev_attr_looptest);
- if (status) {
- dev_dbg(&spi->dev, "device_create_file looptest failure.\n");
- goto out_dev_create_looptest_failed;
- }
-
- return 0;
-
-out_dev_create_looptest_failed:
- dev_set_drvdata(&spi->dev, NULL);
- kfree(p_dummy);
- return status;
-}
-
-static int __devexit pl022_dummy_remove(struct spi_device *spi)
-{
- struct dummy *p_dummy = dev_get_drvdata(&spi->dev);
-
- dev_info(&spi->dev, "removing dummy SPI device\n");
- device_remove_file(&spi->dev, &dev_attr_looptest);
- dev_set_drvdata(&spi->dev, NULL);
- kfree(p_dummy);
-
- return 0;
-}
-
-static struct spi_driver pl022_dummy_driver = {
- .driver = {
- .name = "spi-dummy",
- .owner = THIS_MODULE,
- },
- .probe = pl022_dummy_probe,
- .remove = __devexit_p(pl022_dummy_remove),
-};
-
-static int __init pl022_init_dummy(void)
-{
- return spi_register_driver(&pl022_dummy_driver);
-}
-
-static void __exit pl022_exit_dummy(void)
-{
- spi_unregister_driver(&pl022_dummy_driver);
-}
-
-module_init(pl022_init_dummy);
-module_exit(pl022_exit_dummy);
-
-MODULE_AUTHOR("Linus Walleij <linus.walleij at stericsson.com>");
-MODULE_DESCRIPTION("PL022 SSP/SPI DUMMY Linux driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/spi/amba-pl022-looptest.c b/drivers/spi/amba-pl022-looptest.c
new file mode 100644
index 0000000..5f55012
--- /dev/null
+++ b/drivers/spi/amba-pl022-looptest.c
@@ -0,0 +1,291 @@
+/*
+ * arch/arm/mach-u300/dummyspichip.c
+ *
+ * Copyright (C) 2007-2009 ST-Ericsson AB
+ * License terms: GNU General Public License (GPL) version 2
+ * This is a dummy loopback SPI "chip" used for testing SPI.
+ * Author: Linus Walleij <linus.walleij at stericsson.com>
+ */
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/sysfs.h>
+#include <linux/mutex.h>
+#include <linux/spi/spi.h>
+#include <linux/dma-mapping.h>
+#include <linux/slab.h>
+/*
+ * WARNING! Do not include this pl022-specific controller header
+ * for any generic driver. It is only done in this dummy chip
+ * because we alter the chip configuration in order to test some
+ * different settings on the loopback device. Normal chip configs
+ * shall be STATIC and not altered by the driver!
+ */
+#include <linux/amba/pl022.h>
+
+struct dummy {
+ struct device *dev;
+ struct mutex lock;
+};
+
+#define DMA_TEST_SIZE 2048
+
+/* When we cat /sys/bus/spi/devices/spi0.0/looptest this will be triggered */
+static ssize_t dummy_looptest(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct spi_device *spi = to_spi_device(dev);
+ struct dummy *p_dummy = dev_get_drvdata(&spi->dev);
+
+ /*
+ * WARNING! Do not dereference the chip-specific data in any normal
+ * driver for a chip. It is usually STATIC and shall not be read
+ * or written to. Your chip driver should NOT depend on fields in this
+ * struct, this is just used here to alter the behaviour of the chip
+ * in order to perform tests.
+ */
+ struct pl022_config_chip *chip_info = spi->controller_data;
+ int status;
+ u8 txbuf[14] = {0xDE, 0xAD, 0xBE, 0xEF, 0x2B, 0xAD,
+ 0xCA, 0xFE, 0xBA, 0xBE, 0xB1, 0x05,
+ 0xF0, 0x0D};
+ u8 rxbuf[14];
+ u8 *bigtxbuf_virtual;
+ u8 *bigrxbuf_virtual;
+
+ if (mutex_lock_interruptible(&p_dummy->lock))
+ return -ERESTARTSYS;
+
+ bigtxbuf_virtual = kmalloc(DMA_TEST_SIZE, GFP_KERNEL);
+ if (bigtxbuf_virtual == NULL) {
+ status = -ENOMEM;
+ goto out;
+ }
+ bigrxbuf_virtual = kmalloc(DMA_TEST_SIZE, GFP_KERNEL);
+
+ /* Fill TXBUF with some happy pattern */
+ memset(bigtxbuf_virtual, 0xAA, DMA_TEST_SIZE);
+
+ /*
+ * Force chip to 8 bit mode
+ * WARNING: NEVER DO THIS IN REAL DRIVER CODE, THIS SHOULD BE STATIC!
+ */
+ chip_info->data_size = SSP_DATA_BITS_8;
+ /* You should NOT DO THIS EITHER */
+ spi->master->setup(spi);
+
+ /* Now run the tests for 8bit mode */
+ pr_info("Simple test 1: write 0xAA byte, read back garbage byte "
+ "in 8bit mode\n");
+ status = spi_w8r8(spi, 0xAA);
+ if (status < 0)
+ pr_warning("Siple test 1: FAILURE: spi_write_then_read "
+ "failed with status %d\n", status);
+ else
+ pr_info("Simple test 1: SUCCESS!\n");
+
+ pr_info("Simple test 2: write 8 bytes, read back 8 bytes garbage "
+ "in 8bit mode (full FIFO)\n");
+ status = spi_write_then_read(spi, &txbuf[0], 8, &rxbuf[0], 8);
+ if (status < 0)
+ pr_warning("Simple test 2: FAILURE: spi_write_then_read() "
+ "failed with status %d\n", status);
+ else
+ pr_info("Simple test 2: SUCCESS!\n");
+
+ pr_info("Simple test 3: write 14 bytes, read back 14 bytes garbage "
+ "in 8bit mode (see if we overflow FIFO)\n");
+ status = spi_write_then_read(spi, &txbuf[0], 14, &rxbuf[0], 14);
+ if (status < 0)
+ pr_warning("Simple test 3: FAILURE: failed with status %d "
+ "(probably FIFO overrun)\n", status);
+ else
+ pr_info("Simple test 3: SUCCESS!\n");
+
+ pr_info("Simple test 4: write 8 bytes with spi_write(), read 8 "
+ "bytes garbage with spi_read() in 8bit mode\n");
+ status = spi_write(spi, &txbuf[0], 8);
+ if (status < 0)
+ pr_warning("Simple test 4 step 1: FAILURE: spi_write() "
+ "failed with status %d\n", status);
+ else
+ pr_info("Simple test 4 step 1: SUCCESS!\n");
+ status = spi_read(spi, &rxbuf[0], 8);
+ if (status < 0)
+ pr_warning("Simple test 4 step 2: FAILURE: spi_read() "
+ "failed with status %d\n", status);
+ else
+ pr_info("Simple test 4 step 2: SUCCESS!\n");
+
+ pr_info("Simple test 5: write 14 bytes with spi_write(), read "
+ "14 bytes garbage with spi_read() in 8bit mode\n");
+ status = spi_write(spi, &txbuf[0], 14);
+ if (status < 0)
+ pr_warning("Simple test 5 step 1: FAILURE: spi_write() "
+ "failed with status %d (probably FIFO overrun)\n",
+ status);
+ else
+ pr_info("Simple test 5 step 1: SUCCESS!\n");
+ status = spi_read(spi, &rxbuf[0], 14);
+ if (status < 0)
+ pr_warning("Simple test 5 step 2: FAILURE: spi_read() "
+ "failed with status %d (probably FIFO overrun)\n",
+ status);
+ else
+ pr_info("Simple test 5: SUCCESS!\n");
+
+ pr_info("Simple test 6: write %d bytes with spi_write(), "
+ "read %d bytes garbage with spi_read() in 8bit mode\n",
+ DMA_TEST_SIZE, DMA_TEST_SIZE);
+ status = spi_write(spi, &bigtxbuf_virtual[0], DMA_TEST_SIZE);
+ if (status < 0)
+ pr_warning("Simple test 6 step 1: FAILURE: spi_write() "
+ "failed with status %d (probably FIFO overrun)\n",
+ status);
+ else
+ pr_info("Simple test 6 step 1: SUCCESS!\n");
+ status = spi_read(spi, &bigrxbuf_virtual[0], DMA_TEST_SIZE);
+ if (status < 0)
+ pr_warning("Simple test 6 step 2: FAILURE: spi_read() "
+ "failed with status %d (probably FIFO overrun)\n",
+ status);
+ else
+ pr_info("Simple test 6: SUCCESS!\n");
+
+
+ /*
+ * Force chip to 16 bit mode
+ * WARNING: NEVER DO THIS IN REAL DRIVER CODE, THIS SHOULD BE STATIC!
+ */
+ chip_info->data_size = SSP_DATA_BITS_16;
+ /* You should NOT DO THIS EITHER */
+ spi->master->setup(spi);
+
+ pr_info("Simple test 7: write 0xAA byte, read back garbage byte "
+ "in 16bit bus mode\n");
+ status = spi_w8r8(spi, 0xAA);
+ if (status == -EIO)
+ pr_info("Simple test 7: SUCCESS! (expected failure with "
+ "status EIO)\n");
+ else if (status < 0)
+ pr_warning("Siple test 7: FAILURE: spi_write_then_read "
+ "failed with status %d\n", status);
+ else
+ pr_warning("Siple test 7: FAILURE: spi_write_then_read "
+ "succeeded but it was expected to fail!\n");
+
+ pr_info("Simple test 8: write 8 bytes, read back 8 bytes garbage "
+ "in 16bit mode (full FIFO)\n");
+ status = spi_write_then_read(spi, &txbuf[0], 8, &rxbuf[0], 8);
+ if (status < 0)
+ pr_warning("Simple test 8: FAILURE: spi_write_then_read() "
+ "failed with status %d\n", status);
+ else
+ pr_info("Simple test 8: SUCCESS!\n");
+
+ pr_info("Simple test 9: write 14 bytes, read back 14 bytes garbage "
+ "in 16bit mode (see if we overflow FIFO)\n");
+ status = spi_write_then_read(spi, &txbuf[0], 14, &rxbuf[0], 14);
+ if (status < 0)
+ pr_warning("Simple test 9: FAILURE: failed with status %d "
+ "(probably FIFO overrun)\n", status);
+ else
+ pr_info("Simple test 9: SUCCESS!\n");
+
+ pr_info("Simple test 10: write %d bytes with spi_write(), "
+ "read %d bytes garbage with spi_read() in 16bit mode\n",
+ DMA_TEST_SIZE, DMA_TEST_SIZE);
+ status = spi_write(spi, &bigtxbuf_virtual[0], DMA_TEST_SIZE);
+ if (status < 0)
+ pr_warning("Simple test 10 step 1: FAILURE: spi_write() "
+ "failed with status %d (probably FIFO overrun)\n",
+ status);
+ else
+ pr_info("Simple test 10 step 1: SUCCESS!\n");
+
+ status = spi_read(spi, &bigrxbuf_virtual[0], DMA_TEST_SIZE);
+ if (status < 0)
+ pr_warning("Simple test 10 step 2: FAILURE: spi_read() "
+ "failed with status %d (probably FIFO overrun)\n",
+ status);
+ else
+ pr_info("Simple test 10: SUCCESS!\n");
+
+ status = sprintf(buf, "loop test complete\n");
+ kfree(bigrxbuf_virtual);
+ kfree(bigtxbuf_virtual);
+ out:
+ mutex_unlock(&p_dummy->lock);
+ return status;
+}
+
+static DEVICE_ATTR(looptest, S_IRUGO, dummy_looptest, NULL);
+
+static int __devinit pl022_dummy_probe(struct spi_device *spi)
+{
+ struct dummy *p_dummy;
+ int status;
+
+ dev_info(&spi->dev, "probing dummy SPI device\n");
+
+ p_dummy = kzalloc(sizeof *p_dummy, GFP_KERNEL);
+ if (!p_dummy)
+ return -ENOMEM;
+
+ dev_set_drvdata(&spi->dev, p_dummy);
+ mutex_init(&p_dummy->lock);
+
+ /* sysfs hook */
+ status = device_create_file(&spi->dev, &dev_attr_looptest);
+ if (status) {
+ dev_dbg(&spi->dev, "device_create_file looptest failure.\n");
+ goto out_dev_create_looptest_failed;
+ }
+
+ return 0;
+
+out_dev_create_looptest_failed:
+ dev_set_drvdata(&spi->dev, NULL);
+ kfree(p_dummy);
+ return status;
+}
+
+static int __devexit pl022_dummy_remove(struct spi_device *spi)
+{
+ struct dummy *p_dummy = dev_get_drvdata(&spi->dev);
+
+ dev_info(&spi->dev, "removing dummy SPI device\n");
+ device_remove_file(&spi->dev, &dev_attr_looptest);
+ dev_set_drvdata(&spi->dev, NULL);
+ kfree(p_dummy);
+
+ return 0;
+}
+
+static struct spi_driver pl022_dummy_driver = {
+ .driver = {
+ .name = "spi-dummy",
+ .owner = THIS_MODULE,
+ },
+ .probe = pl022_dummy_probe,
+ .remove = __devexit_p(pl022_dummy_remove),
+};
+
+static int __init pl022_init_dummy(void)
+{
+ return spi_register_driver(&pl022_dummy_driver);
+}
+
+static void __exit pl022_exit_dummy(void)
+{
+ spi_unregister_driver(&pl022_dummy_driver);
+}
+
+module_init(pl022_init_dummy);
+module_exit(pl022_exit_dummy);
+
+MODULE_AUTHOR("Linus Walleij <linus.walleij at stericsson.com>");
+MODULE_DESCRIPTION("PL022 SSP/SPI DUMMY Linux driver");
+MODULE_LICENSE("GPL");
--
1.7.1
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