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-rw-r--r--drivers/i2c/chips/Kconfig1
-rw-r--r--drivers/i2c/chips/isp1301_omap.c28
-rw-r--r--drivers/i2c/chips/tps65010.c101
3 files changed, 115 insertions, 15 deletions
diff --git a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig
index b21593f9358..2da2edfa68e 100644
--- a/drivers/i2c/chips/Kconfig
+++ b/drivers/i2c/chips/Kconfig
@@ -93,6 +93,7 @@ config ISP1301_OMAP
config TPS65010
tristate "TPS6501x Power Management chips"
+ depends on HAVE_GPIO_LIB
default y if MACH_OMAP_H2 || MACH_OMAP_H3 || MACH_OMAP_OSK
help
If you say yes here you get support for the TPS6501x series of
diff --git a/drivers/i2c/chips/isp1301_omap.c b/drivers/i2c/chips/isp1301_omap.c
index 2a3160153f5..b1b45dddb17 100644
--- a/drivers/i2c/chips/isp1301_omap.c
+++ b/drivers/i2c/chips/isp1301_omap.c
@@ -658,7 +658,7 @@ pulldown:
OTG_CTRL_REG |= OTG_PULLUP;
}
- check_state(isp, __FUNCTION__);
+ check_state(isp, __func__);
dump_regs(isp, "otg->isp1301");
}
@@ -782,7 +782,7 @@ static irqreturn_t omap_otg_irq(int irq, void *_isp)
if (otg_ctrl & OTG_DRIVER_SEL) {
switch (isp->otg.state) {
case OTG_STATE_A_IDLE:
- b_idle(isp, __FUNCTION__);
+ b_idle(isp, __func__);
break;
default:
break;
@@ -826,7 +826,7 @@ static irqreturn_t omap_otg_irq(int irq, void *_isp)
isp->otg.host->otg_port);
}
- check_state(isp, __FUNCTION__);
+ check_state(isp, __func__);
return ret;
}
@@ -837,7 +837,7 @@ static int otg_init(struct isp1301 *isp)
if (!otg_dev)
return -ENODEV;
- dump_regs(isp, __FUNCTION__);
+ dump_regs(isp, __func__);
/* some of these values are board-specific... */
OTG_SYSCON_2_REG |= OTG_EN
/* for B-device: */
@@ -853,9 +853,9 @@ static int otg_init(struct isp1301 *isp)
update_otg1(isp, isp1301_get_u8(isp, ISP1301_INTERRUPT_SOURCE));
update_otg2(isp, isp1301_get_u8(isp, ISP1301_OTG_STATUS));
- check_state(isp, __FUNCTION__);
+ check_state(isp, __func__);
pr_debug("otg: %s, %s %06x\n",
- state_name(isp), __FUNCTION__, OTG_CTRL_REG);
+ state_name(isp), __func__, OTG_CTRL_REG);
OTG_IRQ_EN_REG = DRIVER_SWITCH | OPRT_CHG
| B_SRP_TMROUT | B_HNP_FAIL
@@ -1041,11 +1041,11 @@ static void isp_update_otg(struct isp1301 *isp, u8 stat)
OTG1_DP_PULLDOWN);
isp1301_clear_bits(isp, ISP1301_OTG_CONTROL_1,
OTG1_DP_PULLUP);
- dump_regs(isp, __FUNCTION__);
+ dump_regs(isp, __func__);
#endif
/* FALLTHROUGH */
case OTG_STATE_B_SRP_INIT:
- b_idle(isp, __FUNCTION__);
+ b_idle(isp, __func__);
OTG_CTRL_REG &= OTG_CTRL_REG & OTG_XCEIV_OUTPUTS;
/* FALLTHROUGH */
case OTG_STATE_B_IDLE:
@@ -1077,7 +1077,7 @@ static void isp_update_otg(struct isp1301 *isp, u8 stat)
*/
update_otg1(isp, isp_stat);
update_otg2(isp, isp_bstat);
- check_state(isp, __FUNCTION__);
+ check_state(isp, __func__);
#endif
dump_regs(isp, "isp1301->otg");
@@ -1310,7 +1310,7 @@ isp1301_set_host(struct otg_transceiver *otg, struct usb_bus *host)
*/
isp1301_set_bits(isp, ISP1301_OTG_CONTROL_1, OTG1_VBUS_DRV);
- dump_regs(isp, __FUNCTION__);
+ dump_regs(isp, __func__);
return 0;
@@ -1365,7 +1365,7 @@ isp1301_set_peripheral(struct otg_transceiver *otg, struct usb_gadget *gadget)
isp1301_set_bits(isp, ISP1301_INTERRUPT_FALLING,
INTR_VBUS_VLD);
dev_info(&isp->client.dev, "B-Peripheral sessions ok\n");
- dump_regs(isp, __FUNCTION__);
+ dump_regs(isp, __func__);
/* If this has a Mini-AB connector, this mode is highly
* nonstandard ... but can be handy for testing, so long
@@ -1416,7 +1416,7 @@ isp1301_start_srp(struct otg_transceiver *dev)
pr_debug("otg: SRP, %s ... %06x\n", state_name(isp), OTG_CTRL_REG);
#ifdef CONFIG_USB_OTG
- check_state(isp, __FUNCTION__);
+ check_state(isp, __func__);
#endif
return 0;
}
@@ -1463,7 +1463,7 @@ isp1301_start_hnp(struct otg_transceiver *dev)
}
pr_debug("otg: HNP %s, %06x ...\n",
state_name(isp), OTG_CTRL_REG);
- check_state(isp, __FUNCTION__);
+ check_state(isp, __func__);
return 0;
#else
/* srp-only */
@@ -1601,7 +1601,7 @@ fail2:
update_otg2(isp, isp1301_get_u8(isp, ISP1301_OTG_STATUS));
#endif
- dump_regs(isp, __FUNCTION__);
+ dump_regs(isp, __func__);
#ifdef VERBOSE
mod_timer(&isp->timer, jiffies + TIMER_JIFFIES);
diff --git a/drivers/i2c/chips/tps65010.c b/drivers/i2c/chips/tps65010.c
index 4154a910885..b67f69c2e7f 100644
--- a/drivers/i2c/chips/tps65010.c
+++ b/drivers/i2c/chips/tps65010.c
@@ -30,9 +30,13 @@
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/mutex.h>
+#include <linux/platform_device.h>
#include <linux/i2c/tps65010.h>
+#include <asm/gpio.h>
+
+
/*-------------------------------------------------------------------------*/
#define DRIVER_VERSION "2 May 2005"
@@ -84,7 +88,9 @@ struct tps65010 {
u8 chgstatus, regstatus, chgconf;
u8 nmask1, nmask2;
- /* not currently tracking GPIO state */
+ u8 outmask;
+ struct gpio_chip chip;
+ struct platform_device *leds;
};
#define POWER_POLL_DELAY msecs_to_jiffies(5000)
@@ -449,12 +455,72 @@ static irqreturn_t tps65010_irq(int irq, void *_tps)
/*-------------------------------------------------------------------------*/
+/* offsets 0..3 == GPIO1..GPIO4
+ * offsets 4..5 == LED1/nPG, LED2 (we set one of the non-BLINK modes)
+ */
+static void
+tps65010_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+{
+ if (offset < 4)
+ tps65010_set_gpio_out_value(offset + 1, value);
+ else
+ tps65010_set_led(offset - 3, value ? ON : OFF);
+}
+
+static int
+tps65010_output(struct gpio_chip *chip, unsigned offset, int value)
+{
+ /* GPIOs may be input-only */
+ if (offset < 4) {
+ struct tps65010 *tps;
+
+ tps = container_of(chip, struct tps65010, chip);
+ if (!(tps->outmask & (1 << offset)))
+ return -EINVAL;
+ tps65010_set_gpio_out_value(offset + 1, value);
+ } else
+ tps65010_set_led(offset - 3, value ? ON : OFF);
+
+ return 0;
+}
+
+static int tps65010_gpio_get(struct gpio_chip *chip, unsigned offset)
+{
+ int value;
+ struct tps65010 *tps;
+
+ tps = container_of(chip, struct tps65010, chip);
+
+ if (offset < 4) {
+ value = i2c_smbus_read_byte_data(tps->client, TPS_DEFGPIO);
+ if (value < 0)
+ return 0;
+ if (value & (1 << (offset + 4))) /* output */
+ return !(value & (1 << offset));
+ else /* input */
+ return (value & (1 << offset));
+ }
+
+ /* REVISIT we *could* report LED1/nPG and LED2 state ... */
+ return 0;
+}
+
+
+/*-------------------------------------------------------------------------*/
+
static struct tps65010 *the_tps;
static int __exit tps65010_remove(struct i2c_client *client)
{
struct tps65010 *tps = i2c_get_clientdata(client);
+ struct tps65010_board *board = client->dev.platform_data;
+ if (board && board->teardown) {
+ int status = board->teardown(client, board->context);
+ if (status < 0)
+ dev_dbg(&client->dev, "board %s %s err %d\n",
+ "teardown", client->name, status);
+ }
if (client->irq > 0)
free_irq(client->irq, tps);
cancel_delayed_work(&tps->work);
@@ -469,6 +535,7 @@ static int tps65010_probe(struct i2c_client *client)
{
struct tps65010 *tps;
int status;
+ struct tps65010_board *board = client->dev.platform_data;
if (the_tps) {
dev_dbg(&client->dev, "only one tps6501x chip allowed\n");
@@ -577,6 +644,38 @@ static int tps65010_probe(struct i2c_client *client)
tps->file = debugfs_create_file(DRIVER_NAME, S_IRUGO, NULL,
tps, DEBUG_FOPS);
+
+ /* optionally register GPIOs */
+ if (board && board->base > 0) {
+ tps->outmask = board->outmask;
+
+ tps->chip.label = client->name;
+
+ tps->chip.set = tps65010_gpio_set;
+ tps->chip.direction_output = tps65010_output;
+
+ /* NOTE: only partial support for inputs; nyet IRQs */
+ tps->chip.get = tps65010_gpio_get;
+
+ tps->chip.base = board->base;
+ tps->chip.ngpio = 6;
+ tps->chip.can_sleep = 1;
+
+ status = gpiochip_add(&tps->chip);
+ if (status < 0)
+ dev_err(&client->dev, "can't add gpiochip, err %d\n",
+ status);
+ else if (board->setup) {
+ status = board->setup(client, board->context);
+ if (status < 0) {
+ dev_dbg(&client->dev,
+ "board %s %s err %d\n",
+ "setup", client->name, status);
+ status = 0;
+ }
+ }
+ }
+
return 0;
fail1:
kfree(tps);
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-16 00:14:06 +0000