staging: comedi: adv_pci_dio: remove boardinfo 'cardtype'

This member of the boardinfo is identical to the offset of the boardinfo
in the boardtypes array. It's also passed as the 'context' to the driver
(*auto_attach).

The 'cardtype' is only needed by the (*auto_attach) to determine which
PCI BAR to use and in pci_dio_reset() to handle the board specific code.

Remove the 'cardtype' member and use the 'context' value instead.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/comedi/drivers/adv_pci_dio.c b/drivers/staging/comedi/drivers/adv_pci_dio.c
index 6fafc24..21df123 100644 (file)
--- a/drivers/staging/comedi/drivers/adv_pci_dio.c
+++ b/drivers/staging/comedi/drivers/adv_pci_dio.c
@@ -80,7 +80,6 @@ struct diosubd_data {
 
 struct dio_boardtype {
        const char *name;       /*  board name */
-       enum hw_cards_id cardtype;
        int nsubdevs;
        struct diosubd_data sdi[MAX_DI_SUBDEVS];        /*  DI chans */
        struct diosubd_data sdo[MAX_DO_SUBDEVS];        /*  DO chans */
@@ -93,7 +92,6 @@ struct dio_boardtype {
 static const struct dio_boardtype boardtypes[] = {
        [TYPE_PCI1730] = {
                .name           = "pci1730",
-               .cardtype       = TYPE_PCI1730,
                .nsubdevs       = 5,
                .sdi[0]         = { 16, 0x02, },        /* DI 0-15 */
                .sdi[1]         = { 16, 0x00, },        /* ISO DI 0-15 */
@@ -103,21 +101,18 @@ static const struct dio_boardtype boardtypes[] = {
        },
        [TYPE_PCI1733] = {
                .name           = "pci1733",
-               .cardtype       = TYPE_PCI1733,
                .nsubdevs       = 2,
                .sdi[1]         = { 32, 0x00, },        /* ISO DI 0-31 */
                .id_reg         = 0x04,
        },
        [TYPE_PCI1734] = {
                .name           = "pci1734",
-               .cardtype       = TYPE_PCI1734,
                .nsubdevs       = 2,
                .sdo[1]         = { 32, 0x00, },        /* ISO DO 0-31 */
                .id_reg         = 0x04,
        },
        [TYPE_PCI1735] = {
                .name           = "pci1735",
-               .cardtype       = TYPE_PCI1735,
                .nsubdevs       = 4,
                .sdi[0]         = { 32, 0x00, },        /* DI 0-31 */
                .sdo[0]         = { 32, 0x00, },        /* DO 0-31 */
@@ -126,7 +121,6 @@ static const struct dio_boardtype boardtypes[] = {
        },
        [TYPE_PCI1736] = {
                .name           = "pci1736",
-               .cardtype       = TYPE_PCI1736,
                .nsubdevs       = 3,
                .sdi[1]         = { 16, 0x00, },        /* ISO DI 0-15 */
                .sdo[1]         = { 16, 0x00, },        /* ISO DO 0-15 */
@@ -134,28 +128,24 @@ static const struct dio_boardtype boardtypes[] = {
        },
        [TYPE_PCI1739] = {
                .name           = "pci1739",
-               .cardtype       = TYPE_PCI1739,
                .nsubdevs       = 3,
                .sdio[0]        = { 2, 0x00, },         /* 8255 DIO */
                .id_reg         = 0x08,
        },
        [TYPE_PCI1750] = {
                .name           = "pci1750",
-               .cardtype       = TYPE_PCI1750,
                .nsubdevs       = 2,
                .sdi[1]         = { 16, 0x00, },        /* ISO DI 0-15 */
                .sdo[1]         = { 16, 0x00, },        /* ISO DO 0-15 */
        },
        [TYPE_PCI1751] = {
                .name           = "pci1751",
-               .cardtype       = TYPE_PCI1751,
                .nsubdevs       = 3,
                .sdio[0]        = { 2, 0x00, },         /* 8255 DIO */
                .timer_regbase  = 0x18,
        },
        [TYPE_PCI1752] = {
                .name           = "pci1752",
-               .cardtype       = TYPE_PCI1752,
                .nsubdevs       = 3,
                .sdo[0]         = { 32, 0x00, },        /* DO 0-31 */
                .sdo[1]         = { 32, 0x04, },        /* DO 32-63 */
@@ -164,20 +154,17 @@ static const struct dio_boardtype boardtypes[] = {
        },
        [TYPE_PCI1753] = {
                .name           = "pci1753",
-               .cardtype       = TYPE_PCI1753,
                .nsubdevs       = 4,
                .sdio[0]        = { 4, 0x00, },         /* 8255 DIO */
        },
        [TYPE_PCI1753E] = {
                .name           = "pci1753e",
-               .cardtype       = TYPE_PCI1753E,
                .nsubdevs       = 8,
                .sdio[0]        = { 4, 0x00, },         /* 8255 DIO */
                .sdio[1]        = { 4, 0x20, },         /* 8255 DIO */
        },
        [TYPE_PCI1754] = {
                .name           = "pci1754",
-               .cardtype       = TYPE_PCI1754,
                .nsubdevs       = 3,
                .sdi[0]         = { 32, 0x00, },        /* DI 0-31 */
                .sdi[1]         = { 32, 0x04, },        /* DI 32-63 */
@@ -186,7 +173,6 @@ static const struct dio_boardtype boardtypes[] = {
        },
        [TYPE_PCI1756] = {
                .name           = "pci1756",
-               .cardtype       = TYPE_PCI1756,
                .nsubdevs       = 3,
                .sdi[1]         = { 32, 0x00, },        /* DI 0-31 */
                .sdo[1]         = { 32, 0x04, },        /* DO 0-31 */
@@ -195,7 +181,6 @@ static const struct dio_boardtype boardtypes[] = {
        },
        [TYPE_PCI1762] = {
                .name           = "pci1762",
-               .cardtype       = TYPE_PCI1762,
                .nsubdevs       = 3,
                .sdi[1]         = { 16, 0x02, },        /* ISO DI 0-15 */
                .sdo[1]         = { 16, 0x00, },        /* ISO DO 0-15 */
@@ -280,16 +265,14 @@ static int pci_dio_insn_bits_do_w(struct comedi_device *dev,
        return insn->n;
 }
 
-static int pci_dio_reset(struct comedi_device *dev)
+static int pci_dio_reset(struct comedi_device *dev, unsigned long cardtype)
 {
-       const struct dio_boardtype *board = dev->board_ptr;
-
        /* disable channel freeze function on the PCI-1752/1756 boards */
-       if (board->cardtype == TYPE_PCI1752 || board->cardtype == TYPE_PCI1756)
+       if (cardtype == TYPE_PCI1752 || cardtype == TYPE_PCI1756)
                outw(0, dev->iobase + PCI1752_CFC_REG);
 
        /* disable and clear interrupts */
-       switch (board->cardtype) {
+       switch (cardtype) {
        case TYPE_PCI1730:
        case TYPE_PCI1733:
        case TYPE_PCI1736:
@@ -308,7 +291,7 @@ static int pci_dio_reset(struct comedi_device *dev)
                outb(0x80, dev->iobase + PCI1753_INT_REG(1));
                outb(0x80, dev->iobase + PCI1753_INT_REG(2));
                outb(0x80, dev->iobase + PCI1753_INT_REG(3));
-               if (board->cardtype == TYPE_PCI1753E) {
+               if (cardtype == TYPE_PCI1753E) {
                        outb(0x88, dev->iobase + PCI1753E_INT_REG(0));
                        outb(0x80, dev->iobase + PCI1753E_INT_REG(1));
                        outb(0x80, dev->iobase + PCI1753E_INT_REG(2));
@@ -319,7 +302,7 @@ static int pci_dio_reset(struct comedi_device *dev)
        case TYPE_PCI1756:
                outw(0x08, dev->iobase + PCI1754_INT_REG(0));
                outw(0x08, dev->iobase + PCI1754_INT_REG(1));
-               if (board->cardtype == TYPE_PCI1754) {
+               if (cardtype == TYPE_PCI1754) {
                        outw(0x08, dev->iobase + PCI1754_INT_REG(2));
                        outw(0x08, dev->iobase + PCI1754_INT_REG(3));
                }
@@ -385,12 +368,12 @@ static int pci_dio_auto_attach(struct comedi_device *dev,
        ret = comedi_pci_enable(dev);
        if (ret)
                return ret;
-       if (board->cardtype == TYPE_PCI1736)
+       if (context == TYPE_PCI1736)
                dev->iobase = pci_resource_start(pcidev, 0);
        else
                dev->iobase = pci_resource_start(pcidev, 2);
 
-       pci_dio_reset(dev);
+       pci_dio_reset(dev, context);
 
        ret = comedi_alloc_subdevices(dev, board->nsubdevs);
        if (ret)