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authorLinus Torvalds <torvalds@linux-foundation.org>2013-07-02 11:43:33 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-02 11:43:33 -0700
commitfe3c22bd5cadd8e36977b218b27fbea821381ec8 (patch)
treecc4d4479a077c0db22e5de40d181ad6963fc3993 /drivers/char/xilinx_hwicap/xilinx_hwicap.h
parentce49b6289fa3878b190f15192e54bb23dca552b6 (diff)
parent380672698b8e64f0b5e418412b1ed370bd366428 (diff)
downloadblackbird-op-linux-fe3c22bd5cadd8e36977b218b27fbea821381ec8.tar.gz
blackbird-op-linux-fe3c22bd5cadd8e36977b218b27fbea821381ec8.zip
Merge tag 'char-misc-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc updates from Greg KH: "Here's the big char/misc driver tree merge for 3.11-rc1 A variety of different driver patches here. All of these have been in linux-next for a while, and the networking patches were acked-by David Miller, as it made sense for those patches to come through this tree" * tag 'char-misc-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (102 commits) Revert "char: misc: assign file->private_data in all cases" drivers: uio_pdrv_genirq: Use of_match_ptr() macro mei: check whether hw start has succeeded mei: check if the hardware reset succeeded mei: mei_cl_connect: don't multiply the timeout twice mei: do not override a client writing state when buffering mei: move mei_cl_irq_write_complete to client.c UIO: Fix concurrency issue drivers: uio_dmem_genirq: Use of_match_ptr() macro char: misc: assign file->private_data in all cases drivers: hv: allocate synic structures before hv_synic_init() drivers: hv: check interrupt mask before read_index vme: vme_tsi148.c: fix error return code in tsi148_probe() FMC: fix error handling in probe() function fmc: avoid readl/writel namespace conflict FMC: NULL dereference on allocation failure UIO: fix uio_pdrv_genirq with device tree but no interrupt UIO: allow binding uio_pdrv_genirq.c to devices using command line option FMC: add a char-device mezzanine driver FMC: add a driver to write mezzanine EEPROM ...
Diffstat (limited to 'drivers/char/xilinx_hwicap/xilinx_hwicap.h')
-rw-r--r--drivers/char/xilinx_hwicap/xilinx_hwicap.h10
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/char/xilinx_hwicap/xilinx_hwicap.h b/drivers/char/xilinx_hwicap/xilinx_hwicap.h
index d31ee23c9f13..38b145eaf24d 100644
--- a/drivers/char/xilinx_hwicap/xilinx_hwicap.h
+++ b/drivers/char/xilinx_hwicap/xilinx_hwicap.h
@@ -37,7 +37,7 @@
#include <linux/cdev.h>
#include <linux/platform_device.h>
-#include <asm/io.h>
+#include <linux/io.h>
struct hwicap_drvdata {
u32 write_buffer_in_use; /* Always in [0,3] */
@@ -85,7 +85,13 @@ struct hwicap_driver_config {
void (*reset)(struct hwicap_drvdata *drvdata);
};
-/* Number of times to poll the done regsiter */
+/* Number of times to poll the done register. This has to be large
+ * enough to allow an entire configuration to complete. If an entire
+ * page (4kb) is configured at once, that could take up to 4k cycles
+ * with a byte-wide icap interface. In most cases, this driver is
+ * used with a much smaller fifo, but this should be sufficient in the
+ * worst case.
+ */
#define XHI_MAX_RETRIES 5000
/************ Constant Definitions *************/
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