pcmcia: introduce autoconfiguration feature

Introduce an autoconfiguration feature to set certain values in
pcmcia_loop_config(), instead of copying the same code over and over
in each PCMCIA driver. At first, introduce the following options:

CONF_AUTO_CHECK_VCC	check or matching Vcc entry
CONF_AUTO_SET_VPP	set Vpp
CONF_AUTO_AUDIO		enable the speaker line

CC: netdev@vger.kernel.org
CC: linux-wireless@vger.kernel.org
CC: linux-ide@vger.kernel.org
CC: linux-usb@vger.kernel.org
CC: laforge@gnumonks.org
CC: linux-mtd@lists.infradead.org
CC: alsa-devel@alsa-project.org
CC: linux-serial@vger.kernel.org
CC: Jiri Kosina <jkosina@suse.cz>
CC: linux-scsi@vger.kernel.org
Acked-by: Gustavo F. Padovan <padovan@profusion.mobi> (for drivers/bluetooth)
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

1 files changed, 3 insertions, 21 deletions

diff --git a/drivers/usb/host/sl811_cs.c b/drivers/usb/host/sl811_cs.c
index 744c2cd..d960629 100644
--- a/drivers/usb/host/sl811_cs.c
+++ b/drivers/usb/host/sl811_cs.c
@@ -134,32 +134,11 @@ static void sl811_cs_release(struct pcmcia_device * link)
 static int sl811_cs_config_check(struct pcmcia_device *p_dev,
 				 cistpl_cftable_entry_t *cfg,
 				 cistpl_cftable_entry_t *dflt,
-				 unsigned int vcc,
 				 void *priv_data)
 {
 	if (cfg->index == 0)
 		return -ENODEV;
 
-	/* Use power settings for Vcc and Vpp if present */
-	/*  Note that the CIS values need to be rescaled */
-	if (cfg->vcc.present & (1<<CISTPL_POWER_VNOM)) {
-		if (cfg->vcc.param[CISTPL_POWER_VNOM]/10000 != vcc)
-			return -ENODEV;
-	} else if (dflt->vcc.present & (1<<CISTPL_POWER_VNOM)) {
-		if (dflt->vcc.param[CISTPL_POWER_VNOM]/10000 != vcc)
-			return -ENODEV;
-		}
-
-	if (cfg->vpp1.present & (1<<CISTPL_POWER_VNOM))
-		p_dev->vpp =
-			cfg->vpp1.param[CISTPL_POWER_VNOM]/10000;
-	else if (dflt->vpp1.present & (1<<CISTPL_POWER_VNOM))
-		p_dev->vpp =
-			dflt->vpp1.param[CISTPL_POWER_VNOM]/10000;
-
-	/* we need an interrupt */
-	p_dev->config_flags |= CONF_ENABLE_IRQ;
-
 	/* IO window settings */
 	p_dev->resource[0]->end = p_dev->resource[1]->end = 0;
 	if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) {
@@ -184,6 +163,9 @@ static int sl811_cs_config(struct pcmcia_device *link)
 
 	dev_dbg(&link->dev, "sl811_cs_config\n");
 
+	link->config_flags |= CONF_ENABLE_IRQ |	CONF_AUTO_SET_VPP |
+		CONF_AUTO_CHECK_VCC;
+
 	if (pcmcia_loop_config(link, sl811_cs_config_check, NULL))
 		goto failed;