[PATCH 12/30] viafb: Move core stuff into via-core.c

Jonathan Corbet
2010-04-28T22:22:54Z

The first step toward turning viafb into a multifunction driver. This
patch creates a new via-core.c file which serves as the main PCI driver;
everything else comes below that. Some work has been done to rationalize
the i2c drivers in this new scheme.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
---
drivers/video/via/Makefile | 4 +-
drivers/video/via/dvi.c | 4 +-
drivers/video/via/global.c | 2 +
drivers/video/via/global.h | 1 +
drivers/video/via/lcd.c | 10 ++--
drivers/video/via/via-core.c | 113 ++++++++++++++++++++++++++++++++++++++++++
drivers/video/via/via-core.h | 55 ++++++++++++++++++++
drivers/video/via/via_i2c.c | 74 +++++++++++----------------
drivers/video/via/via_i2c.h | 26 +---------
drivers/video/via/viafbdev.c | 69 +++++--------------------
drivers/video/via/viafbdev.h | 17 +++++-
11 files changed, 242 insertions(+), 133 deletions(-)
create mode 100644 drivers/video/via/via-core.c
create mode 100644 drivers/video/via/via-core.h

diff --git a/drivers/video/via/Makefile b/drivers/video/via/Makefile
index eeed238..f644092 100644
--- a/drivers/video/via/Makefile
+++ b/drivers/video/via/Makefile
@@ -2,6 +2,6 @@
# Makefile for the VIA framebuffer driver (for Linux Kernel 2.6)
#

-obj-$(CONFIG_FB_VIA) += viafb.o
+obj-$(CONFIG_FB_VIA) += viafb.o

-viafb-y :=viafbdev.o hw.o via_i2c.o dvi.o lcd.o ioctl.o accel.o via_utility.o vt1636.o global.o tblDPASetting.o viamode.o tbl1636.o
+viafb-y :=viafbdev.o hw.o via_i2c.o dvi.o lcd.o ioctl.o accel.o via_utility.o vt1636.o global.o tblDPASetting.o viamode.o tbl1636.o via-core.o
diff --git a/drivers/video/via/dvi.c b/drivers/video/via/dvi.c
index be51370..e357c4d 100644
--- a/drivers/video/via/dvi.c
+++ b/drivers/video/via/dvi.c
@@ -96,7 +96,7 @@ int viafb_tmds_trasmitter_identify(void)
viaparinfo->chip_info->tmds_chip_info.tmds_chip_name = VT1632_TMDS;
viaparinfo->chip_info->
tmds_chip_info.tmds_chip_slave_addr = VT1632_TMDS_I2C_ADDR;
- viaparinfo->chip_info->tmds_chip_info.i2c_port = VIA_I2C_ADAP_31;
+ viaparinfo->chip_info->tmds_chip_info.i2c_port = VIA_PORT_31;
if (check_tmds_chip(VT1632_DEVICE_ID_REG, VT1632_DEVICE_ID) != FAIL) {
/*
* Currently only support 12bits,dual edge,add 24bits mode later
@@ -110,7 +110,7 @@ int viafb_tmds_trasmitter_identify(void)
viaparinfo->chip_info->tmds_chip_info.i2c_port);
return OK;
} else {
- viaparinfo->chip_info->tmds_chip_info.i2c_port = VIA_I2C_ADAP_2C;
+ viaparinfo->chip_info->tmds_chip_info.i2c_port = VIA_PORT_2C;
if (check_tmds_chip(VT1632_DEVICE_ID_REG, VT1632_DEVICE_ID)
!= FAIL) {
tmds_register_write(0x08, 0x3b);
diff --git a/drivers/video/via/global.c b/drivers/video/via/global.c
index 1ee511b..339d663 100644
--- a/drivers/video/via/global.c
+++ b/drivers/video/via/global.c
@@ -46,7 +46,9 @@ unsigned int viafb_second_virtual_xres;
unsigned int viafb_second_virtual_yres;
int viafb_lcd_panel_id = LCD_PANEL_ID_MAXIMUM + 1;
struct fb_info *viafbinfo;
+EXPORT_SYMBOL_GPL(viafbinfo);
struct fb_info *viafbinfo1;
struct viafb_par *viaparinfo;
+EXPORT_SYMBOL_GPL(viaparinfo);
struct viafb_par *viaparinfo1;

diff --git a/drivers/video/via/global.h b/drivers/video/via/global.h
index 8d95d5f..be48e73 100644
--- a/drivers/video/via/global.h
+++ b/drivers/video/via/global.h
@@ -35,6 +35,7 @@

#include "debug.h"

+#include "via-core.h"
#include "viafbdev.h"
#include "chip.h"
#include "accel.h"
diff --git a/drivers/video/via/lcd.c b/drivers/video/via/lcd.c
index e19441d..8ef60c0 100644
--- a/drivers/video/via/lcd.c
+++ b/drivers/video/via/lcd.c
@@ -172,14 +172,14 @@ static bool lvds_identify_integratedlvds(void)

int viafb_lvds_trasmitter_identify(void)
{
- if (viafb_lvds_identify_vt1636(VIA_I2C_ADAP_31)) {
- viaparinfo->chip_info->lvds_chip_info.i2c_port = VIA_I2C_ADAP_31;
+ if (viafb_lvds_identify_vt1636(VIA_PORT_31)) {
+ viaparinfo->chip_info->lvds_chip_info.i2c_port = VIA_PORT_31;
DEBUG_MSG(KERN_INFO
"Found VIA VT1636 LVDS on port i2c 0x31\n");
} else {
- if (viafb_lvds_identify_vt1636(VIA_I2C_ADAP_2C)) {
+ if (viafb_lvds_identify_vt1636(VIA_PORT_2C)) {
viaparinfo->chip_info->lvds_chip_info.i2c_port =
- VIA_I2C_ADAP_2C;
+ VIA_PORT_2C;
DEBUG_MSG(KERN_INFO
"Found VIA VT1636 LVDS on port gpio 0x2c\n");
}
@@ -419,7 +419,7 @@ static int lvds_register_read(int index)
{
u8 data;

- viafb_i2c_readbyte(VIA_I2C_ADAP_2C,
+ viafb_i2c_readbyte(VIA_PORT_2C,
(u8) viaparinfo->chip_info->lvds_chip_info.lvds_chip_slave_addr,
(u8) index, &data);
return data;
diff --git a/drivers/video/via/via-core.c b/drivers/video/via/via-core.c
new file mode 100644
index 0000000..cda4de4
--- /dev/null
+++ b/drivers/video/via/via-core.c
@@ -0,0 +1,113 @@
+/*
+ * Copyright 1998-2009 VIA Technologies, Inc. All Rights Reserved.
+ * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
+ * Copyright 2009 Jonathan Corbet <corbet@lwn.net>
+ */
+
+/*
+ * Core code for the Via multifunction framebuffer device.
+ */
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include "global.h" /* Includes everything under the sun */
+
+/*
+ * The default port config.
+ */
+static struct via_port_cfg adap_configs[] = {
+ [VIA_PORT_26] = { VIA_PORT_I2C, VIA_MODE_OFF, VIASR, 0x26 },
+ [VIA_PORT_31] = { VIA_PORT_I2C, VIA_MODE_I2C, VIASR, 0x31 },
+ [VIA_PORT_25] = { VIA_PORT_GPIO, VIA_MODE_GPIO, VIASR, 0x25 },
+ [VIA_PORT_2C] = { VIA_PORT_GPIO, VIA_MODE_I2C, VIASR, 0x2c },
+ [VIA_PORT_3D] = { VIA_PORT_GPIO, VIA_MODE_GPIO, VIASR, 0x3d },
+ { 0, 0, 0, 0 }
+};
+
+
+static int __devinit via_pci_probe(struct pci_dev *pdev,
+ const struct pci_device_id *ent)
+{
+ int ret;
+
+ ret = pci_enable_device(pdev);
+ if (ret)
+ return ret;
+ /*
+ * Set up subsidiary devices
+ */
+ ret = via_fb_pci_probe(pdev, ent);
+ if (ret)
+ return ret;
+ /*
+ * Create the I2C busses. Bailing out on failure seems extreme,
+ * but that's what the code did before.
+ */
+ ret = viafb_create_i2c_busses(adap_configs);
+ if (ret) {
+ via_fb_pci_remove(pdev);
+ return ret;
+ }
+ return 0;
+}
+
+static void __devexit via_pci_remove(struct pci_dev *pdev)
+{
+ viafb_delete_i2c_busses();
+ via_fb_pci_remove(pdev);
+ pci_disable_device(pdev);
+}
+
+
+static struct pci_device_id via_pci_table[] __devinitdata = {
+ { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_CLE266_DID),
+ .driver_data = UNICHROME_CLE266 },
+ { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_PM800_DID),
+ .driver_data = UNICHROME_PM800 },
+ { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_K400_DID),
+ .driver_data = UNICHROME_K400 },
+ { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_K800_DID),
+ .driver_data = UNICHROME_K800 },
+ { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_P4M890_DID),
+ .driver_data = UNICHROME_CN700 },
+ { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_K8M890_DID),
+ .driver_data = UNICHROME_K8M890 },
+ { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_CX700_DID),
+ .driver_data = UNICHROME_CX700 },
+ { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_P4M900_DID),
+ .driver_data = UNICHROME_P4M900 },
+ { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_CN750_DID),
+ .driver_data = UNICHROME_CN750 },
+ { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_VX800_DID),
+ .driver_data = UNICHROME_VX800 },
+ { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_VX855_DID),
+ .driver_data = UNICHROME_VX855 },
+ { }
+};
+MODULE_DEVICE_TABLE(pci, via_pci_table);
+
+static struct pci_driver via_driver = {
+ .name = "viafb",
+ .id_table = via_pci_table,
+ .probe = via_pci_probe,
+ .remove = __devexit_p(via_pci_remove),
+};
+
+static int __init via_core_init(void)
+{
+ int ret;
+
+ ret = pci_register_driver(&via_driver);
+ if (ret)
+ return ret;
+ viafb_init();
+ return 0;
+}
+
+static void __exit via_core_exit(void)
+{
+ viafb_exit();
+ pci_unregister_driver(&via_driver);
+}
+
+module_init(via_core_init);
+module_exit(via_core_exit);
diff --git a/drivers/video/via/via-core.h b/drivers/video/via/via-core.h
new file mode 100644
index 0000000..1c2fb06
--- /dev/null
+++ b/drivers/video/via/via-core.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright 1998-2009 VIA Technologies, Inc. All Rights Reserved.
+ * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
+ * Copyright 2009 Jonathan Corbet <corbet@lwn.net>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation;
+ * either version 2, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
+ * the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE.See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __VIA_CORE_H__
+#define __VIA_CORE_H__
+/*
+ * A description of each known serial I2C/GPIO port.
+ */
+enum via_port_type {
+ VIA_PORT_NONE = 0,
+ VIA_PORT_I2C,
+ VIA_PORT_GPIO,
+};
+
+enum via_port_mode {
+ VIA_MODE_OFF = 0,
+ VIA_MODE_I2C, /* Used as I2C port */
+ VIA_MODE_GPIO, /* Two GPIO ports */
+};
+
+enum viafb_i2c_adap {
+ VIA_PORT_26 = 0,
+ VIA_PORT_31,
+ VIA_PORT_25,
+ VIA_PORT_2C,
+ VIA_PORT_3D,
+};
+#define VIAFB_NUM_PORTS 5
+
+struct via_port_cfg {
+ enum via_port_type type;
+ enum via_port_mode mode;
+ u_int16_t io_port;
+ u_int8_t ioport_index;
+};
+#endif /* __VIA_CORE_H__ */
diff --git a/drivers/video/via/via_i2c.c b/drivers/video/via/via_i2c.c
index b5253e3..4788292 100644
--- a/drivers/video/via/via_i2c.c
+++ b/drivers/video/via/via_i2c.c
@@ -21,13 +21,18 @@

#include "global.h"

+/*
+ * There can only be one set of these, so there's no point in having
+ * them be dynamically allocated...
+ */
+#define VIAFB_NUM_I2C 5
+static struct via_i2c_stuff via_i2c_par[VIAFB_NUM_I2C];
+
static void via_i2c_setscl(void *data, int state)
{
u8 val;
- struct via_i2c_adap_cfg *adap_data = data;
+ struct via_port_cfg *adap_data = data;

- DEBUG_MSG(KERN_DEBUG "reading index 0x%02x from IO 0x%x\n",
- adap_data->ioport_index, adap_data->io_port);
val = viafb_read_reg(adap_data->io_port,
adap_data->ioport_index) & 0xF0;
if (state)
@@ -35,10 +40,10 @@ static void via_i2c_setscl(void *data, int state)
else
val &= ~0x20;
switch (adap_data->type) {
- case VIA_I2C_I2C:
+ case VIA_PORT_I2C:
val |= 0x01;
break;
- case VIA_I2C_GPIO:
+ case VIA_PORT_GPIO:
val |= 0x80;
break;
default:
@@ -50,7 +55,7 @@ static void via_i2c_setscl(void *data, int state)

static int via_i2c_getscl(void *data)
{
- struct via_i2c_adap_cfg *adap_data = data;
+ struct via_port_cfg *adap_data = data;

if (viafb_read_reg(adap_data->io_port, adap_data->ioport_index) & 0x08)
return 1;
@@ -59,7 +64,7 @@ static int via_i2c_getscl(void *data)

static int via_i2c_getsda(void *data)
{
- struct via_i2c_adap_cfg *adap_data = data;
+ struct via_port_cfg *adap_data = data;

if (viafb_read_reg(adap_data->io_port, adap_data->ioport_index) & 0x04)
return 1;
@@ -69,7 +74,7 @@ static int via_i2c_getsda(void *data)
static void via_i2c_setsda(void *data, int state)
{
u8 val;
- struct via_i2c_adap_cfg *adap_data = data;
+ struct via_port_cfg *adap_data = data;

val = viafb_read_reg(adap_data->io_port,
adap_data->ioport_index) & 0xF0;
@@ -78,10 +83,10 @@ static void via_i2c_setsda(void *data, int state)
else
val &= ~0x10;
switch (adap_data->type) {
- case VIA_I2C_I2C:
+ case VIA_PORT_I2C:
val |= 0x01;
break;
- case VIA_I2C_GPIO:
+ case VIA_PORT_GPIO:
val |= 0x40;
break;
default:
@@ -103,8 +108,7 @@ int viafb_i2c_readbyte(u8 adap, u8 slave_addr, u8 index, u8 *pdata)
mm1[0] = index;
msgs[0].len = 1; msgs[1].len = 1;
msgs[0].buf = mm1; msgs[1].buf = pdata;
- return i2c_transfer(&viaparinfo->shared->i2c_stuff[adap].adapter,
- msgs, 2);
+ return i2c_transfer(&via_i2c_par[adap].adapter, msgs, 2);
}

int viafb_i2c_writebyte(u8 adap, u8 slave_addr, u8 index, u8 data)
@@ -116,8 +120,7 @@ int viafb_i2c_writebyte(u8 adap, u8 slave_addr, u8 index, u8 data)
msgs.addr = slave_addr / 2;
msgs.len = 2;
msgs.buf = msg;
- return i2c_transfer(&viaparinfo->shared->i2c_stuff[adap].adapter,
- &msgs, 1);
+ return i2c_transfer(&via_i2c_par[adap].adapter, &msgs, 1);
}

int viafb_i2c_readbytes(u8 adap, u8 slave_addr, u8 index, u8 *buff, int buff_len)
@@ -131,13 +134,12 @@ int viafb_i2c_readbytes(u8 adap, u8 slave_addr, u8 index, u8 *buff, int buff_len
mm1[0] = index;
msgs[0].len = 1; msgs[1].len = buff_len;
msgs[0].buf = mm1; msgs[1].buf = buff;
- return i2c_transfer(&viaparinfo->shared->i2c_stuff[adap].adapter,
- msgs, 2);
+ return i2c_transfer(&via_i2c_par[adap].adapter, msgs, 2);
}

static int create_i2c_bus(struct i2c_adapter *adapter,
struct i2c_algo_bit_data *algo,
- struct via_i2c_adap_cfg *adap_cfg,
+ struct via_port_cfg *adap_cfg,
struct pci_dev *pdev)
{
DEBUG_MSG(KERN_DEBUG "viafb: creating bus adap=0x%p, algo_bit_data=0x%p, adap_cfg=0x%p\n", adapter, algo, adap_cfg);
@@ -170,31 +172,15 @@ static int create_i2c_bus(struct i2c_adapter *adapter,
return i2c_bit_add_bus(adapter);
}

-/*
- * By default, we only activate busses on ports 2c and 31 to avoid
- * conflicts with other possible users; that default can be changed
- * below.
- */
-static struct via_i2c_adap_cfg adap_configs[] = {
- [VIA_I2C_ADAP_26] = { VIA_I2C_I2C, VIASR, 0x26, 0 },
- [VIA_I2C_ADAP_31] = { VIA_I2C_I2C, VIASR, 0x31, 1 },
- [VIA_I2C_ADAP_25] = { VIA_I2C_GPIO, VIASR, 0x25, 0 },
- [VIA_I2C_ADAP_2C] = { VIA_I2C_GPIO, VIASR, 0x2c, 1 },
- [VIA_I2C_ADAP_3D] = { VIA_I2C_GPIO, VIASR, 0x3d, 0 },
- { 0, 0, 0, 0 }
-};
-
-int viafb_create_i2c_busses(struct viafb_par *viapar)
+int viafb_create_i2c_busses(struct via_port_cfg *configs)
{
int i, ret;

- for (i = 0; i < VIAFB_NUM_I2C; i++) {
- struct via_i2c_adap_cfg *adap_cfg = &adap_configs[i];
- struct via_i2c_stuff *i2c_stuff = &viapar->shared->i2c_stuff[i];
+ for (i = 0; i < VIAFB_NUM_PORTS; i++) {
+ struct via_port_cfg *adap_cfg = configs++;
+ struct via_i2c_stuff *i2c_stuff = &via_i2c_par[i];

- if (adap_cfg->type == 0)
- break;
- if (!adap_cfg->is_active)
+ if (adap_cfg->type == 0 || adap_cfg->mode != VIA_MODE_I2C)
continue;

ret = create_i2c_bus(&i2c_stuff->adapter,
@@ -211,14 +197,16 @@ int viafb_create_i2c_busses(struct viafb_par *viapar)
return 0;
}

-void viafb_delete_i2c_busses(struct viafb_par *par)
+void viafb_delete_i2c_busses(void)
{
int i;

- for (i = 0; i < ARRAY_SIZE(par->shared->i2c_stuff); i++) {
- struct via_i2c_stuff *i2c_stuff = &par->shared->i2c_stuff[i];
- /* only remove those entries in the array that we've
- * actually used (and thus initialized algo_data) */
+ for (i = 0; i < VIAFB_NUM_PORTS; i++) {
+ struct via_i2c_stuff *i2c_stuff = &via_i2c_par[i];
+ /*
+ * Only remove those entries in the array that we've
+ * actually used (and thus initialized algo_data)
+ */
if (i2c_stuff->adapter.algo_data == &i2c_stuff->algo)
i2c_del_adapter(&i2c_stuff->adapter);
}
diff --git a/drivers/video/via/via_i2c.h b/drivers/video/via/via_i2c.h
index 73d682f..0093291 100644
--- a/drivers/video/via/via_i2c.h
+++ b/drivers/video/via/via_i2c.h
@@ -24,39 +24,19 @@
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>

-enum via_i2c_type {
- VIA_I2C_NONE,
- VIA_I2C_I2C,
- VIA_I2C_GPIO,
-};
-
-/* private data for each adapter */
-struct via_i2c_adap_cfg {
- enum via_i2c_type type;
- u_int16_t io_port;
- u_int8_t ioport_index;
- u8 is_active;
-};
-
struct via_i2c_stuff {
u16 i2c_port; /* GPIO or I2C port */
struct i2c_adapter adapter;
struct i2c_algo_bit_data algo;
};

-enum viafb_i2c_adap {
- VIA_I2C_ADAP_26,
- VIA_I2C_ADAP_31,
- VIA_I2C_ADAP_25,
- VIA_I2C_ADAP_2C,
- VIA_I2C_ADAP_3D,
-};

int viafb_i2c_readbyte(u8 adap, u8 slave_addr, u8 index, u8 *pdata);
int viafb_i2c_writebyte(u8 adap, u8 slave_addr, u8 index, u8 data);
int viafb_i2c_readbytes(u8 adap, u8 slave_addr, u8 index, u8 *buff, int buff_len);

struct viafb_par;
-int viafb_create_i2c_busses(struct viafb_par *par);
-void viafb_delete_i2c_busses(struct viafb_par *par);
+int viafb_create_i2c_busses(struct via_port_cfg *cfg);
+void viafb_delete_i2c_busses(void);
+struct i2c_adapter *viafb_find_adapter(enum viafb_i2c_adap which);
#endif /* __VIA_I2C_H__ */
diff --git a/drivers/video/via/viafbdev.c b/drivers/video/via/viafbdev.c
index fa10049..17a874f 100644
--- a/drivers/video/via/viafbdev.c
+++ b/drivers/video/via/viafbdev.c
@@ -1731,8 +1731,9 @@ static int parse_mode(const char *str, u32 *xres, u32 *yres)
return 0;
}

-static int __devinit via_pci_probe(struct pci_dev *pdev,
- const struct pci_device_id *ent)
+
+int __devinit via_fb_pci_probe(struct pci_dev *pdev,
+ const struct pci_device_id *ent)
{
u32 default_xres, default_yres;
struct VideoModeTable *vmode_entry;
@@ -1764,6 +1765,7 @@ static int __devinit via_pci_probe(struct pci_dev *pdev,
&viaparinfo->shared->lvds_setting_info2;
viaparinfo->crt_setting_info = &viaparinfo->shared->crt_setting_info;
viaparinfo->chip_info = &viaparinfo->shared->chip_info;
+ spin_lock_init(&viaparinfo->reg_lock);

if (viafb_dual_fb)
viafb_SAMM_ON = 1;
@@ -1774,26 +1776,21 @@ static int __devinit via_pci_probe(struct pci_dev *pdev,
if (!viafb_SAMM_ON)
viafb_dual_fb = 0;

- /* Set up I2C bus stuff */
- rc = viafb_create_i2c_busses(viaparinfo);
- if (rc)
- goto out_fb_release;
-
viafb_init_chip_info(pdev, ent);
viaparinfo->fbmem = pci_resource_start(pdev, 0);
viaparinfo->memsize = viafb_get_fb_size_from_pci();
if (viaparinfo->memsize < 0) {
rc = viaparinfo->memsize;
- goto out_delete_i2c;
+ goto out_fb_release;
}
viaparinfo->fbmem_free = viaparinfo->memsize;
viaparinfo->fbmem_used = 0;
viafbinfo->screen_base = ioremap_nocache(viaparinfo->fbmem,
viaparinfo->memsize);
if (!viafbinfo->screen_base) {
- printk(KERN_INFO "ioremap failed\n");
+ printk(KERN_ERR "ioremap of fbmem failed\n");
rc = -ENOMEM;
- goto out_delete_i2c;
+ goto out_fb_release;
}

viafbinfo->fix.mmio_start = pci_resource_start(pdev, 1);
@@ -1963,14 +1960,12 @@ out_fb1_release:
framebuffer_release(viafbinfo1);
out_unmap_screen:
iounmap(viafbinfo->screen_base);
-out_delete_i2c:
- viafb_delete_i2c_busses(viaparinfo);
out_fb_release:
framebuffer_release(viafbinfo);
return rc;
}

-static void __devexit via_pci_remove(struct pci_dev *pdev)
+void __devexit via_fb_pci_remove(struct pci_dev *pdev)
{
DEBUG_MSG(KERN_INFO "via_pci_remove!\n");
fb_dealloc_cmap(&viafbinfo->cmap);
@@ -1980,8 +1975,6 @@ static void __devexit via_pci_remove(struct pci_dev *pdev)
iounmap((void *)viafbinfo->screen_base);
iounmap(viaparinfo->shared->engine_mmio);

- viafb_delete_i2c_busses(viaparinfo);
-
framebuffer_release(viafbinfo);
if (viafb_dual_fb)
framebuffer_release(viafbinfo1);
@@ -2062,41 +2055,10 @@ static int __init viafb_setup(char *options)
}
#endif

-static struct pci_device_id viafb_pci_table[] __devinitdata = {
- { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_CLE266_DID),
- .driver_data = UNICHROME_CLE266 },
- { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_PM800_DID),
- .driver_data = UNICHROME_PM800 },
- { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_K400_DID),
- .driver_data = UNICHROME_K400 },
- { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_K800_DID),
- .driver_data = UNICHROME_K800 },
- { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_P4M890_DID),
- .driver_data = UNICHROME_CN700 },
- { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_K8M890_DID),
- .driver_data = UNICHROME_K8M890 },
- { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_CX700_DID),
- .driver_data = UNICHROME_CX700 },
- { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_P4M900_DID),
- .driver_data = UNICHROME_P4M900 },
- { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_CN750_DID),
- .driver_data = UNICHROME_CN750 },
- { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_VX800_DID),
- .driver_data = UNICHROME_VX800 },
- { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_VX855_DID),
- .driver_data = UNICHROME_VX855 },
- { }
-};
-MODULE_DEVICE_TABLE(pci, viafb_pci_table);
-
-static struct pci_driver viafb_driver = {
- .name = "viafb",
- .id_table = viafb_pci_table,
- .probe = via_pci_probe,
- .remove = __devexit_p(via_pci_remove),
-};
-
-static int __init viafb_init(void)
+/*
+ * These are called out of via-core for now.
+ */
+int __init viafb_init(void)
{
u32 dummy;
#ifndef MODULE
@@ -2115,13 +2077,12 @@ static int __init viafb_init(void)
printk(KERN_INFO
"VIA Graphics Intergration Chipset framebuffer %d.%d initializing\n",
VERSION_MAJOR, VERSION_MINOR);
- return pci_register_driver(&viafb_driver);
+ return 0;
}

-static void __exit viafb_exit(void)
+void __exit viafb_exit(void)
{
DEBUG_MSG(KERN_INFO "viafb_exit!\n");
- pci_unregister_driver(&viafb_driver);
}

static struct fb_ops viafb_ops = {
@@ -2141,8 +2102,6 @@ static struct fb_ops viafb_ops = {
.fb_sync = viafb_sync,
};

-module_init(viafb_init);
-module_exit(viafb_exit);

#ifdef MODULE
module_param(viafb_mode, charp, S_IRUSR);
diff --git a/drivers/video/via/viafbdev.h b/drivers/video/via/viafbdev.h
index 4bc00ec..5604f27 100644
--- a/drivers/video/via/viafbdev.h
+++ b/drivers/video/via/viafbdev.h
@@ -24,6 +24,7 @@

#include <linux/proc_fs.h>
#include <linux/fb.h>
+#include <linux/spinlock.h>

#include "ioctl.h"
#include "share.h"
@@ -42,9 +43,6 @@
struct viafb_shared {
struct proc_dir_entry *proc_entry; /*viafb proc entry */

- /* I2C stuff */
- struct via_i2c_stuff i2c_stuff[VIAFB_NUM_I2C];
-
/* All the information will be needed to set engine */
struct tmds_setting_information tmds_setting_info;
struct crt_setting_information crt_setting_info;
@@ -74,6 +72,14 @@ struct viafb_par {

struct viafb_shared *shared;

+ /*
+ * (jc) I believe one should use locking to protect against
+ * concurrent access to the device ports and registers. Thus,
+ * this lock. Use of it is *far* from universal, though...
+ * someday...
+ */
+ spinlock_t reg_lock;
+
/* All the information will be needed to set engine */
/* depreciated, use the ones in shared directly */
struct tmds_setting_information *tmds_setting_info;
@@ -101,4 +107,9 @@ u8 viafb_gpio_i2c_read_lvds(struct lvds_setting_information
void viafb_gpio_i2c_write_mask_lvds(struct lvds_setting_information
*plvds_setting_info, struct lvds_chip_information
*plvds_chip_info, struct IODATA io_data);
+int via_fb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
+void via_fb_pci_remove(struct pci_dev *pdev);
+/* Temporary */
+int viafb_init(void);
+void viafb_exit(void);
#endif /* __VIAFBDEV_H__ */
--
1.7.0.1