From 35169529093be3bbef70afd3c4125e35cece7e03 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Sun, 10 Jan 2010 09:41:24 +0100 Subject: pcmcia/yenta: add module parameter for O2 speedups O2-bridges can do read prefetch and write burst. However, for some combinations of older bridges and cards, this causes problems, so it is disabled for those bridges. Now, as some users know their setup works with the speedups enabled, a new parameter is introduced to the driver. Now, a user can specifically enable or disable these features, while the default is what we have today: detect the bridge and decide accordingly. Fixes Bugzilla entry 15014. Simplify and unify the printouts, fix a whitespace issue while we are here. Signed-off-by: Wolfram Sang Tested-by: frodone@gmail.com [linux@dominikbrodowski.net: whitespace fixes] Signed-off-by: Dominik Brodowski --- drivers/pcmcia/yenta_socket.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers/pcmcia/yenta_socket.c') diff --git a/drivers/pcmcia/yenta_socket.c b/drivers/pcmcia/yenta_socket.c index e4d12ac..041a75a 100644 --- a/drivers/pcmcia/yenta_socket.c +++ b/drivers/pcmcia/yenta_socket.c @@ -37,6 +37,11 @@ static int pwr_irqs_off; module_param(pwr_irqs_off, bool, 0644); MODULE_PARM_DESC(pwr_irqs_off, "Force IRQs off during power-on of slot. Use only when seeing IRQ storms!"); +static char o2_speedup[] = "default"; +module_param_string(o2_speedup, o2_speedup, sizeof(o2_speedup), 0444); +MODULE_PARM_DESC(o2_speedup, "Use prefetch/burst for O2-bridges: 'on', 'off' " + "or 'default' (uses recommended behaviour for the detected bridge)"); + #define debug(x, s, args...) dev_dbg(&s->dev->dev, x, ##args) /* Don't ask.. */ -- cgit v1.1