From: Ryan Bradetich Date: Fri, 10 Nov 2006 04:06:14 +0000 (+0000) Subject: [PARISC] [MUX] Get the hversion directly from the parisc_device X-Git-Tag: v2.6.21-rc2~35^2~47^2~19 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=514fb84e1c5d12a0af808458bcae0c6463041f93;p=karo-tx-linux.git [PARISC] [MUX] Get the hversion directly from the parisc_device Willy pointed out the hversion is already stored in the parisc_device, so I do not need to extract this information directly from the IODC data. Also by using the information in the parisc_device I can avoid re-reading the IODC data for the Muxes with specifed port counts. Signed-off-by: Ryan Bradetich Signed-off-by: Kyle McMartin --- diff --git a/drivers/serial/mux.c b/drivers/serial/mux.c index f5b17f5333fb..ea9cbda77965 100644 --- a/drivers/serial/mux.c +++ b/drivers/serial/mux.c @@ -83,19 +83,20 @@ static struct timer_list mux_timer; */ static int __init get_mux_port_count(struct parisc_device *dev) { + int status; u8 iodc_data[32]; unsigned long bytecnt; - int status = pdc_iodc_read(&bytecnt, dev->hpa.start, 0, iodc_data, 32); - BUG_ON(status != PDC_OK); - /* If this is the built-in Mux for the K-Class (Eole CAP/MUX), * we only need to allocate resources for 1 port since the * other 7 ports are not connected. */ - if(((iodc_data[0] << 4) | ((iodc_data[1] & 0xf0) >> 4)) == 0x15) + if(dev->id.hversion == 0x15) return 1; + status = pdc_iodc_read(&bytecnt, dev->hpa.start, 0, iodc_data, 32); + BUG_ON(status != PDC_OK); + /* Return the number of ports specified in the iodc data. */ return ((((iodc_data)[4] & 0xf0) >> 4) * 8) + 8; }