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omap: Fix gpio_request calls to happen as arch_initcall
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Looks like some boards are calling gpio_request from init_irq.
This will make the request_irq fail, as GPIO will be initialized
as postcore_initcall.

Reported-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Tony Lindgren committed Dec 8, 2010
1 parent 7b045c9 commit c2cdaff
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Showing 8 changed files with 42 additions and 36 deletions.
21 changes: 11 additions & 10 deletions arch/arm/mach-omap1/board-fsample.c
Original file line number Diff line number Diff line change
Expand Up @@ -120,6 +120,15 @@ static struct resource smc91x_resources[] = {
},
};

static void __init fsample_init_smc91x(void)
{
fpga_write(1, H2P2_DBG_FPGA_LAN_RESET);
mdelay(50);
fpga_write(fpga_read(H2P2_DBG_FPGA_LAN_RESET) & ~1,
H2P2_DBG_FPGA_LAN_RESET);
mdelay(50);
}

static struct mtd_partition nor_partitions[] = {
/* bootloader (U-Boot, etc) in first sector */
{
Expand Down Expand Up @@ -285,6 +294,8 @@ static struct omap_board_config_kernel fsample_config[] = {

static void __init omap_fsample_init(void)
{
fsample_init_smc91x();

if (gpio_request(FSAMPLE_NAND_RB_GPIO_PIN, "NAND ready") < 0)
BUG();
gpio_direction_input(FSAMPLE_NAND_RB_GPIO_PIN);
Expand Down Expand Up @@ -312,21 +323,11 @@ static void __init omap_fsample_init(void)
omap_register_i2c_bus(1, 100, NULL, 0);
}

static void __init fsample_init_smc91x(void)
{
fpga_write(1, H2P2_DBG_FPGA_LAN_RESET);
mdelay(50);
fpga_write(fpga_read(H2P2_DBG_FPGA_LAN_RESET) & ~1,
H2P2_DBG_FPGA_LAN_RESET);
mdelay(50);
}

static void __init omap_fsample_init_irq(void)
{
omap1_init_common_hw();
omap_init_irq();
omap_gpio_init();
fsample_init_smc91x();
}

/* Only FPGA needs to be mapped here. All others are done with ioremap */
Expand Down
3 changes: 2 additions & 1 deletion arch/arm/mach-omap1/board-h2.c
Original file line number Diff line number Diff line change
Expand Up @@ -375,7 +375,6 @@ static void __init h2_init_irq(void)
omap1_init_common_hw();
omap_init_irq();
omap_gpio_init();
h2_init_smc91x();
}

static struct omap_usb_config h2_usb_config __initdata = {
Expand Down Expand Up @@ -403,6 +402,8 @@ static struct omap_board_config_kernel h2_config[] __initdata = {

static void __init h2_init(void)
{
h2_init_smc91x();

/* Here we assume the NOR boot config: NOR on CS3 (possibly swapped
* to address 0 by a dip switch), NAND on CS2B. The NAND driver will
* notice whether a NAND chip is enabled at probe time.
Expand Down
21 changes: 11 additions & 10 deletions arch/arm/mach-omap1/board-h3.c
Original file line number Diff line number Diff line change
Expand Up @@ -264,6 +264,15 @@ static struct platform_device smc91x_device = {
.resource = smc91x_resources,
};

static void __init h3_init_smc91x(void)
{
omap_cfg_reg(W15_1710_GPIO40);
if (gpio_request(40, "SMC91x irq") < 0) {
printk("Error requesting gpio 40 for smc91x irq\n");
return;
}
}

#define GPTIMER_BASE 0xFFFB1400
#define GPTIMER_REGS(x) (0xFFFB1400 + (x * 0x800))
#define GPTIMER_REGS_SIZE 0x46
Expand Down Expand Up @@ -376,6 +385,8 @@ static struct i2c_board_info __initdata h3_i2c_board_info[] = {

static void __init h3_init(void)
{
h3_init_smc91x();

/* Here we assume the NOR boot config: NOR on CS3 (possibly swapped
* to address 0 by a dip switch), NAND on CS2B. The NAND driver will
* notice whether a NAND chip is enabled at probe time.
Expand Down Expand Up @@ -422,21 +433,11 @@ static void __init h3_init(void)
h3_mmc_init();
}

static void __init h3_init_smc91x(void)
{
omap_cfg_reg(W15_1710_GPIO40);
if (gpio_request(40, "SMC91x irq") < 0) {
printk("Error requesting gpio 40 for smc91x irq\n");
return;
}
}

static void __init h3_init_irq(void)
{
omap1_init_common_hw();
omap_init_irq();
omap_gpio_init();
h3_init_smc91x();
}

static void __init h3_map_io(void)
Expand Down
3 changes: 2 additions & 1 deletion arch/arm/mach-omap1/board-innovator.c
Original file line number Diff line number Diff line change
Expand Up @@ -296,7 +296,6 @@ static void __init innovator_init_irq(void)
omap1510_fpga_init_irq();
}
#endif
innovator_init_smc91x();
}

#ifdef CONFIG_ARCH_OMAP15XX
Expand Down Expand Up @@ -387,6 +386,8 @@ static struct omap_board_config_kernel innovator_config[] = {

static void __init innovator_init(void)
{
innovator_init_smc91x();

#ifdef CONFIG_ARCH_OMAP15XX
if (cpu_is_omap1510()) {
unsigned char reg;
Expand Down
5 changes: 3 additions & 2 deletions arch/arm/mach-omap1/board-osk.c
Original file line number Diff line number Diff line change
Expand Up @@ -284,8 +284,6 @@ static void __init osk_init_irq(void)
omap1_init_common_hw();
omap_init_irq();
omap_gpio_init();
osk_init_smc91x();
osk_init_cf();
}

static struct omap_usb_config osk_usb_config __initdata = {
Expand Down Expand Up @@ -541,6 +539,9 @@ static void __init osk_init(void)
{
u32 l;

osk_init_smc91x();
osk_init_cf();

/* Workaround for wrong CS3 (NOR flash) timing
* There are some U-Boot versions out there which configure
* wrong CS3 memory timings. This mainly leads to CRC
Expand Down
21 changes: 11 additions & 10 deletions arch/arm/mach-omap1/board-perseus2.c
Original file line number Diff line number Diff line change
Expand Up @@ -251,8 +251,19 @@ static struct omap_board_config_kernel perseus2_config[] __initdata = {
{ OMAP_TAG_LCD, &perseus2_lcd_config },
};

static void __init perseus2_init_smc91x(void)
{
fpga_write(1, H2P2_DBG_FPGA_LAN_RESET);
mdelay(50);
fpga_write(fpga_read(H2P2_DBG_FPGA_LAN_RESET) & ~1,
H2P2_DBG_FPGA_LAN_RESET);
mdelay(50);
}

static void __init omap_perseus2_init(void)
{
perseus2_init_smc91x();

if (gpio_request(P2_NAND_RB_GPIO_PIN, "NAND ready") < 0)
BUG();
gpio_direction_input(P2_NAND_RB_GPIO_PIN);
Expand Down Expand Up @@ -280,21 +291,11 @@ static void __init omap_perseus2_init(void)
omap_register_i2c_bus(1, 100, NULL, 0);
}

static void __init perseus2_init_smc91x(void)
{
fpga_write(1, H2P2_DBG_FPGA_LAN_RESET);
mdelay(50);
fpga_write(fpga_read(H2P2_DBG_FPGA_LAN_RESET) & ~1,
H2P2_DBG_FPGA_LAN_RESET);
mdelay(50);
}

static void __init omap_perseus2_init_irq(void)
{
omap1_init_common_hw();
omap_init_irq();
omap_gpio_init();
perseus2_init_smc91x();
}
/* Only FPGA needs to be mapped here. All others are done with ioremap */
static struct map_desc omap_perseus2_io_desc[] __initdata = {
Expand Down
2 changes: 1 addition & 1 deletion arch/arm/mach-omap2/board-apollon.c
Original file line number Diff line number Diff line change
Expand Up @@ -281,7 +281,6 @@ static void __init omap_apollon_init_irq(void)
omap2_init_common_hw(NULL, NULL);
omap_init_irq();
omap_gpio_init();
apollon_init_smc91x();
}

static void __init apollon_led_init(void)
Expand Down Expand Up @@ -324,6 +323,7 @@ static void __init omap_apollon_init(void)

omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAC);

apollon_init_smc91x();
apollon_led_init();
apollon_flash_init();
apollon_usb_init();
Expand Down
2 changes: 1 addition & 1 deletion arch/arm/mach-omap2/board-ldp.c
Original file line number Diff line number Diff line change
Expand Up @@ -295,7 +295,6 @@ static void __init omap_ldp_init_irq(void)
omap2_init_common_hw(NULL, NULL);
omap_init_irq();
omap_gpio_init();
ldp_init_smsc911x();
}

static struct twl4030_usb_data ldp_usb_data = {
Expand Down Expand Up @@ -426,6 +425,7 @@ static struct mtd_partition ldp_nand_partitions[] = {
static void __init omap_ldp_init(void)
{
omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
ldp_init_smsc911x();
omap_i2c_init();
platform_add_devices(ldp_devices, ARRAY_SIZE(ldp_devices));
ts_gpio = 54;
Expand Down

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