@@ -141,13 +141,6 @@
#define HTCPLD_GPIO_DOWN_DPAD HTCPLD_BASE(7, 4)
#define HTCPLD_GPIO_ENTER_DPAD HTCPLD_BASE(7, 3)
-/*
- * The htcpld chip requires a gpio write to a specific line
- * to re-enable interrupts after one has occurred.
- */
-#define HTCPLD_GPIO_INT_RESET_HI HTCPLD_BASE(2, 7)
-#define HTCPLD_GPIO_INT_RESET_LO HTCPLD_BASE(2, 0)
-
/* Chip 5 */
#define HTCPLD_IRQ_RIGHT_KBD HTCPLD_IRQ(0, 7)
#define HTCPLD_IRQ_UP_KBD HTCPLD_IRQ(0, 6)
@@ -348,8 +341,6 @@ static struct htcpld_chip_platform_data htcpld_chips[] = {
};
static struct htcpld_core_platform_data htcpld_pfdata = {
- .int_reset_gpio_hi = HTCPLD_GPIO_INT_RESET_HI,
- .int_reset_gpio_lo = HTCPLD_GPIO_INT_RESET_LO,
.i2c_adapter_id = 1,
.chip = htcpld_chips,
@@ -20,7 +20,9 @@
#include <linux/irq.h>
#include <linux/spinlock.h>
#include <linux/htcpld.h>
-#include <linux/gpio.h>
+#include <linux/gpio/driver.h>
+#include <linux/gpio/machine.h>
+#include <linux/gpio/consumer.h>
#include <linux/slab.h>
struct htcpld_chip {
@@ -58,8 +60,8 @@ struct htcpld_data {
uint irq_start;
int nirqs;
uint chained_irq;
- unsigned int int_reset_gpio_hi;
- unsigned int int_reset_gpio_lo;
+ struct gpio_desc *int_reset_gpio_hi;
+ struct gpio_desc *int_reset_gpio_lo;
/* htcpld info */
struct htcpld_chip *chip;
@@ -196,9 +198,9 @@ static irqreturn_t htcpld_handler(int irq, void *dev)
* be asserted.
*/
if (htcpld->int_reset_gpio_hi)
- gpio_set_value(htcpld->int_reset_gpio_hi, 1);
+ gpiod_set_value(htcpld->int_reset_gpio_hi, 1);
if (htcpld->int_reset_gpio_lo)
- gpio_set_value(htcpld->int_reset_gpio_lo, 0);
+ gpiod_set_value(htcpld->int_reset_gpio_lo, 0);
return IRQ_HANDLED;
}
@@ -562,35 +564,26 @@ static int htcpld_core_probe(struct platform_device *pdev)
return ret;
/* Request the GPIO(s) for the int reset and set them up */
- if (pdata->int_reset_gpio_hi) {
- ret = gpio_request(pdata->int_reset_gpio_hi, "htcpld-core");
- if (ret) {
- /*
- * If it failed, that sucks, but we can probably
- * continue on without it.
- */
- dev_warn(dev, "Unable to request int_reset_gpio_hi -- interrupts may not work\n");
- htcpld->int_reset_gpio_hi = 0;
- } else {
- htcpld->int_reset_gpio_hi = pdata->int_reset_gpio_hi;
- gpio_set_value(htcpld->int_reset_gpio_hi, 1);
- }
- }
+ htcpld->int_reset_gpio_hi = gpiochip_request_own_desc(&htcpld->chip[2].chip_out,
+ 7, "htcpld-core", GPIO_ACTIVE_HIGH,
+ GPIOD_OUT_HIGH);
+ if (!htcpld->int_reset_gpio_hi)
+ /*
+ * If it failed, that sucks, but we can probably
+ * continue on without it.
+ */
+ dev_warn(dev, "Unable to request int_reset_gpio_hi -- interrupts may not work\n");
- if (pdata->int_reset_gpio_lo) {
- ret = gpio_request(pdata->int_reset_gpio_lo, "htcpld-core");
- if (ret) {
- /*
- * If it failed, that sucks, but we can probably
- * continue on without it.
- */
- dev_warn(dev, "Unable to request int_reset_gpio_lo -- interrupts may not work\n");
- htcpld->int_reset_gpio_lo = 0;
- } else {
- htcpld->int_reset_gpio_lo = pdata->int_reset_gpio_lo;
- gpio_set_value(htcpld->int_reset_gpio_lo, 0);
- }
- }
+
+ htcpld->int_reset_gpio_lo = gpiochip_request_own_desc(&htcpld->chip[2].chip_out,
+ 0, "htcpld-core", GPIO_ACTIVE_HIGH,
+ GPIOD_OUT_LOW);
+ if (!htcpld->int_reset_gpio_lo)
+ /*
+ * If it failed, that sucks, but we can probably
+ * continue on without it.
+ */
+ dev_warn(dev, "Unable to request int_reset_gpio_lo -- interrupts may not work\n");
dev_info(dev, "Initialized successfully\n");
return 0;
@@ -13,8 +13,6 @@ struct htcpld_chip_platform_data {
};
struct htcpld_core_platform_data {
- unsigned int int_reset_gpio_hi;
- unsigned int int_reset_gpio_lo;
unsigned int i2c_adapter_id;
struct htcpld_chip_platform_data *chip;
Instead of passing GPIO numbers pertaining to ourselves through platform data, just request GPIO descriptors from our own GPIO chips and use them, and cut down on the unnecessary complexity. Cc: Aaro Koskinen <aaro.koskinen@iki.fi> Cc: Janusz Krzysztofik <jmkrzyszt@gmail.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Cory Maccarrone <darkstar6262@gmail.com> Cc: linux-omap@vger.kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org> --- If one of the OMAP1 people can provide an ACK then it's best if Lee takes this into the MFD tree. --- arch/arm/mach-omap1/board-htcherald.c | 9 ---- drivers/mfd/htc-i2cpld.c | 59 ++++++++++++--------------- include/linux/htcpld.h | 2 - 3 files changed, 26 insertions(+), 44 deletions(-)