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authorLen Brown <len.brown@intel.com>2009-05-27 23:59:58 -0400
committerLen Brown <len.brown@intel.com>2009-05-28 20:52:40 -0400
commit2f102607ac77354b02a76cf2748598ce9f270f08 (patch)
tree922513b874c12a9fe75bba02e94c24388f21dc35 /drivers/idle
parentcd86a536c81e9300d984327517548ca0652eebf9 (diff)
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i7300_idle: allow testing on i5000-series hardware w/o re-compile
Testing the i7300_idle driver on i5000-series hardware required an edit to i7300_idle.h to "#define SUPPORT_I5000 1" and a re-build of both i7300_idle and ioat_dma. Replace that build-time scheme with a load-time module parameter: "7300_idle.forceload=1" to make it easier to test the driver on hardware that while not officially validated, works fine and is much more commonly available. By default (no modparam) the driver will continue to load only on the i7300. Note that ioat_dma runs a copy of i7300_idle's probe routine to know to reserve an IOAT channel for i7300_idle. This change makes ioat_dma do that always on the i5000, just like it does on the i7300. Signed-off-by: Len Brown <len.brown@intel.com> Acked-by: Andrew Henroid <andrew.d.henroid@intel.com>
Diffstat (limited to 'drivers/idle')
-rw-r--r--drivers/idle/i7300_idle.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/idle/i7300_idle.c b/drivers/idle/i7300_idle.c
index bf740394d70..949c97ff57e 100644
--- a/drivers/idle/i7300_idle.c
+++ b/drivers/idle/i7300_idle.c
@@ -41,6 +41,10 @@ static int debug;
module_param_named(debug, debug, uint, 0644);
MODULE_PARM_DESC(debug, "Enable debug printks in this driver");
+static int forceload;
+module_param_named(forceload, forceload, uint, 0644);
+MODULE_PARM_DESC(debug, "Enable driver testing on unvalidated i5000");
+
#define dprintk(fmt, arg...) \
do { if (debug) printk(KERN_INFO I7300_PRINT fmt, ##arg); } while (0)
@@ -552,7 +556,7 @@ static int __init i7300_idle_init(void)
cpus_clear(idle_cpumask);
total_us = 0;
- if (i7300_idle_platform_probe(&fbd_dev, &ioat_dev))
+ if (i7300_idle_platform_probe(&fbd_dev, &ioat_dev, forceload))
return -ENODEV;
if (i7300_idle_thrt_save())