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-rw-r--r--arch/arm/mach-omap2/board-omap3h1-bluetooth.c83
-rw-r--r--arch/arm/mach-omap2/board-omap3h1.c21
-rw-r--r--arch/arm/mach-omap2/board-omap3h1.h2
-rw-r--r--arch/arm/mach-omap2/serial.c3
4 files changed, 73 insertions, 36 deletions
diff --git a/arch/arm/mach-omap2/board-omap3h1-bluetooth.c b/arch/arm/mach-omap2/board-omap3h1-bluetooth.c
index a56ae4e4bd5..2d502bab5a6 100644
--- a/arch/arm/mach-omap2/board-omap3h1-bluetooth.c
+++ b/arch/arm/mach-omap2/board-omap3h1-bluetooth.c
@@ -41,6 +41,10 @@
#include "board-omap3h1.h"
#include <linux/regulator/driver.h>
+#include "asm/io.h"
+#include "mux.h"
+#include "iomap.h"
+
static void set_host_wake_locked(int);
#define BT_RESET_GPIO 179
@@ -48,6 +52,7 @@ static void set_host_wake_locked(int);
#define BT_WAKE_GPIO 93
#define BT_HOST_WAKE_GPIO 11
#define UART_PORT 0 /* UART 1 = 0 */
+#define BT_RST_PIN 149
#define olio_debug(format, ...) printk ("OLIO %s: ", __FUNCTION__); printk (format, ##__VA_ARGS__)
@@ -79,12 +84,49 @@ static struct bcm_bt_lpm {
char bcm_wake_lock_name[100];
} bt_lpm;
+static int wake_mode_calls = 0;
+
+/***************************************************************************
+ * rts_enter_sleep_mode - set RTS pin to off mode
+ *
+ * The RTS pin needs to be kept high while sleeping.
+ */
+
+void rts_enter_sleep_mode()
+{
+ if (wake_mode_calls == 0)
+ __raw_writew ((u16) ( 1 << 8 | 1 << 4 | 1 << 3 | 4 ),
+ (volatile void *) OMAP2_L4_IO_ADDRESS(OMAP3_CONTROL_PADCONF_MUX_PBASE) +
+ OMAP3_CONTROL_PADCONF_UART1_RTS_OFFSET);
+
+ /* Now this is a GPIO pin. Send to sleep. */
+
+ return;
+}
+
+/***************************************************************************
+ * rts_exit_sleep_mode - set RTS pin to on mode
+ *
+ * The RTS pin needs to be kept high while sleeping, otherwise let the
+ * driver decide.
+ */
+
+void rts_exit_sleep_mode()
+{
+ if (wake_mode_calls == 0)
+ __raw_writew ((u16) ( 0x0 ),
+ (volatile void *) OMAP2_L4_IO_ADDRESS(OMAP3_CONTROL_PADCONF_MUX_PBASE) +
+ OMAP3_CONTROL_PADCONF_UART1_RTS_OFFSET);
+
+ return;
+}
+
static int bcm20702_bt_rfkill_set_power(void *data, bool blocked)
{
// rfkill_ops callback. Turn transmitter on when blocked is false
if (!blocked) {
if (clk32ksys_reg && !bt_enabled)
- regulator_enable(clk32ksys_reg);
+ (void) regulator_enable(clk32ksys_reg);
gpio_set_value(BT_RESET_GPIO, 1);
gpio_set_value(BT_REG_GPIO, 1);
@@ -123,10 +165,6 @@ static void set_wake_locked(int wake)
olio_debug ("Now locking wake lock\n");
wake_lock (&bt_lpm.bcm_wake_lock);
- /* Does this even make sense here? We've already using the port,
- doesn't that mean that we're */
-
-
if (!wake_uart_enabled)
omap_serial_ext_uart_enable(UART_PORT);
}
@@ -190,11 +228,13 @@ static void set_host_wake_locked(int host_wake)
if (host_wake) {
olio_debug ("host_wake is set, taking wake lock\n");
wake_lock(&bt_lpm.host_wake_lock);
-
+
if (!host_wake_uart_enabled) {
omap_serial_ext_uart_enable(UART_PORT);
- }
+ }
+
} else {
+
if (host_wake_uart_enabled) {
omap_serial_ext_uart_disable(UART_PORT);
}
@@ -400,35 +440,6 @@ static int bcm20702_bluetooth_remove(struct platform_device *pdev)
return 0;
}
-int bcm4430_bluetooth_suspend(struct platform_device *pdev, pm_message_t state)
-{
- int irq = gpio_to_irq(BT_HOST_WAKE_GPIO);
- int host_wake;
-
- disable_irq(irq);
-
- host_wake = gpio_get_value(BT_HOST_WAKE_GPIO);
-
- if (host_wake) {
- enable_irq(irq);
- return -EBUSY;
- }
-
- return 0;
-}
-
-int bcm4430_bluetooth_resume(struct platform_device *pdev)
-{
- int irq = gpio_to_irq(BT_HOST_WAKE_GPIO);
- enable_irq(irq);
- return 0;
-}
-
-/*
- .suspend = bcm4430_bluetooth_suspend,
- .resume = bcm4430_bluetooth_resume,
-*/
-
static struct platform_driver bcm20702_bluetooth_platform_driver = {
.probe = bcm20702_bluetooth_probe,
.remove = bcm20702_bluetooth_remove,
diff --git a/arch/arm/mach-omap2/board-omap3h1.c b/arch/arm/mach-omap2/board-omap3h1.c
index c2f3feac561..c1009f3b7e2 100644
--- a/arch/arm/mach-omap2/board-omap3h1.c
+++ b/arch/arm/mach-omap2/board-omap3h1.c
@@ -319,8 +319,12 @@ static struct i2c_board_info __initdata omap3h1_i2c3_board_info[] = {
.dma_rx_buf_size = DEFAULT_RXDMA_BUFSIZE,
.dma_rx_poll_rate = DEFAULT_RXDMA_POLLRATE,
.dma_rx_timeout = DEFAULT_RXDMA_TIMEOUT,
+ This one sets runtime pm autosuspend timeout - -1 disables runtime
+ pm (that is, pm that's done while running, not sleeping).
.autosuspend_timeout = DEFAULT_AUTOSUSPEND_DELAY, ( -1 or X ms. )
+ Wakelock timeout: If there's an interrupt on the serial port, this is
+ how long we expect to wait before the system is functional.
.wakelock_timeout - for minnow, this is 150 (BT) or 50 (M4 debug).
Can be left out.
@@ -333,6 +337,8 @@ static struct i2c_board_info __initdata omap3h1_i2c3_board_info[] = {
bool open_close_pm; - Minnow uses this for c55 only
unsigned int rx_trig; Minnow, BT & debug only
+
+ The flags field is not used (it's hardcoded in omap_serial_init_port).
*/
static struct omap_uart_port_info omap_uart_ports[] = {
@@ -346,6 +352,12 @@ static struct omap_uart_port_info omap_uart_ports[] = {
.wake_peer = bcm_bt_lpm_exit_lpm_locked,
.wakeup_capable = true,
.rx_trig = 32,
+
+ /* OLIO: make sure RTS isn't enabled before we're ready */
+
+ .rts_wait = true,
+ .rts_enable_fn = rts_exit_sleep_mode,
+ .rts_disable_fn = rts_enter_sleep_mode,
},
{
.dma_enabled = false, /* To specify DMA Mode */
@@ -354,6 +366,9 @@ static struct omap_uart_port_info omap_uart_ports[] = {
.dma_rx_poll_rate = DEFAULT_RXDMA_POLLRATE,
.autosuspend_timeout = 0,
.wakeup_capable = false,
+ .rts_wait = false,
+ .rts_enable_fn = NULL,
+ .rts_disable_fn = NULL,
},
{
.dma_enabled = false, /* To specify DMA Mode */
@@ -362,6 +377,9 @@ static struct omap_uart_port_info omap_uart_ports[] = {
.dma_rx_poll_rate = DEFAULT_RXDMA_POLLRATE,
.autosuspend_timeout = -1,
.wakeup_capable = true,
+ .rts_wait = false,
+ .rts_enable_fn = NULL,
+ .rts_disable_fn = NULL,
},
{
.dma_enabled = false, /* To specify DMA Mode */
@@ -370,6 +388,9 @@ static struct omap_uart_port_info omap_uart_ports[] = {
.dma_rx_poll_rate = DEFAULT_RXDMA_POLLRATE,
.autosuspend_timeout = 0,
.wakeup_capable = false,
+ .rts_wait = false,
+ .rts_enable_fn = NULL,
+ .rts_disable_fn = NULL,
},
};
diff --git a/arch/arm/mach-omap2/board-omap3h1.h b/arch/arm/mach-omap2/board-omap3h1.h
index 343eaeaaf86..ddf95f41fa4 100644
--- a/arch/arm/mach-omap2/board-omap3h1.h
+++ b/arch/arm/mach-omap2/board-omap3h1.h
@@ -26,5 +26,7 @@
#include <linux/serial_core.h>
extern void bcm_bt_lpm_exit_lpm_locked(struct uart_port *uport);
+extern void rts_exit_sleep_mode (void);
+extern void rts_enter_sleep_mode (void);
#endif /* __BOARD_OMAP3H1_H__ */
diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c
index b1f3fb1d396..a605fe9a9a2 100644
--- a/arch/arm/mach-omap2/serial.c
+++ b/arch/arm/mach-omap2/serial.c
@@ -305,6 +305,9 @@ void __init omap_serial_init_port(struct omap_board_data *bdata,
omap_up.DTR_gpio = info->DTR_gpio;
omap_up.DTR_inverted = info->DTR_inverted;
omap_up.DTR_present = info->DTR_present;
+ omap_up.rts_enable_fn = info->rts_enable_fn;
+ omap_up.rts_disable_fn = info->rts_disable_fn;
+ omap_up.rts_wait = info->rts_wait;
pdata = &omap_up;
pdata_size = sizeof(struct omap_uart_port_info);
generated by cgit v1.2.3-70-g09d2 (git 2.51.2) at 2025-10-31 18:14:48 +0000