Remove the remaining timesync bits that were left in the arche platform driver and which prevented the driver from being compiled.

Fixes: bdfb95c4baab ("staging: greybus: remove timesync protocol support") Signed-off-by: Johan Hovold johan@kernel.org --- drivers/staging/greybus/arche-apb-ctrl.c | 11 +-- drivers/staging/greybus/arche-platform.c | 143 ------------------------------- drivers/staging/greybus/arche_platform.h | 8 -- 3 files changed, 3 insertions(+), 159 deletions(-)

diff --git a/drivers/staging/greybus/arche-apb-ctrl.c b/drivers/staging/greybus/arche-apb-ctrl.c index 02243b4fd898..0412f3d06efb 100644 --- a/drivers/staging/greybus/arche-apb-ctrl.c +++ b/drivers/staging/greybus/arche-apb-ctrl.c @@ -22,6 +22,8 @@ #include "arche_platform.h"

+static void apb_bootret_deassert(struct device *dev); + struct arche_apb_ctrl_drvdata { /* Control GPIO signals to and from AP <=> AP Bridges */ int resetn_gpio; @@ -222,14 +224,7 @@ static void poweroff_seq(struct platform_device *pdev) /* TODO: May have to send an event to SVC about this exit */ }

-void apb_bootret_assert(struct device *dev) -{ - struct arche_apb_ctrl_drvdata *apb = dev_get_drvdata(dev); - - gpio_set_value(apb->boot_ret_gpio, 1); -} - -void apb_bootret_deassert(struct device *dev) +static void apb_bootret_deassert(struct device *dev) { struct arche_apb_ctrl_drvdata *apb = dev_get_drvdata(dev);

diff --git a/drivers/staging/greybus/arche-platform.c b/drivers/staging/greybus/arche-platform.c index aac1145f1983..9e644bfe2ae0 100644 --- a/drivers/staging/greybus/arche-platform.c +++ b/drivers/staging/greybus/arche-platform.c @@ -35,7 +35,6 @@ enum svc_wakedetect_state { WD_STATE_STANDBYBOOT_TRIG, /* As of now not used ?? */ WD_STATE_COLDBOOT_START, /* Cold boot process started */ WD_STATE_STANDBYBOOT_START, /* Not used */ - WD_STATE_TIMESYNC, };

struct arche_platform_drvdata { @@ -59,26 +58,12 @@ struct arche_platform_drvdata { int wake_detect_irq; spinlock_t wake_lock; /* Protect wake_detect_state */ struct mutex platform_state_mutex; /* Protect state */ - wait_queue_head_t wq; /* WQ for arche_pdata->state */ unsigned long wake_detect_start; struct notifier_block pm_notifier;

struct device *dev; - struct gb_timesync_svc *timesync_svc_pdata; };

-static int arche_apb_bootret_assert(struct device *dev, void *data) -{ - apb_bootret_assert(dev); - return 0; -} - -static int arche_apb_bootret_deassert(struct device *dev, void *data) -{ - apb_bootret_deassert(dev); - return 0; -} - /* Requires calling context to hold arche_pdata->platform_state_mutex */ static void arche_platform_set_state(struct arche_platform_drvdata *arche_pdata, enum arche_platform_state state) @@ -86,112 +71,6 @@ static void arche_platform_set_state(struct arche_platform_drvdata *arche_pdata, arche_pdata->state = state; }

-/* - * arche_platform_change_state: Change the operational state - * - * This exported function allows external drivers to change the state - * of the arche-platform driver. - * Note that this function only supports transitions between two states - * with limited functionality. - * - * - ARCHE_PLATFORM_STATE_TIME_SYNC: - * Once set, allows timesync operations between SVC <=> AP and makes - * sure that arche-platform driver ignores any subsequent events/pulses - * from SVC over wake/detect. - * - * - ARCHE_PLATFORM_STATE_ACTIVE: - * Puts back driver to active state, where any pulse from SVC on wake/detect - * line would trigger either cold/standby boot. - * Note: Transition request from this function does not trigger cold/standby - * boot. It just puts back driver book keeping variable back to ACTIVE - * state and restores the interrupt. - * - * Returns -ENODEV if device not found, -EAGAIN if the driver cannot currently - * satisfy the requested state-transition or -EINVAL for all other - * state-transition requests. - */ -int arche_platform_change_state(enum arche_platform_state state, - struct gb_timesync_svc *timesync_svc_pdata) -{ - struct arche_platform_drvdata *arche_pdata; - struct platform_device *pdev; - struct device_node *np; - int ret = -EAGAIN; - unsigned long flags; - - np = of_find_compatible_node(NULL, NULL, "google,arche-platform"); - if (!np) { - pr_err("google,arche-platform device node not found\n"); - return -ENODEV; - } - - pdev = of_find_device_by_node(np); - if (!pdev) { - pr_err("arche-platform device not found\n"); - of_node_put(np); - return -ENODEV; - } - - arche_pdata = platform_get_drvdata(pdev); - - mutex_lock(&arche_pdata->platform_state_mutex); - spin_lock_irqsave(&arche_pdata->wake_lock, flags); - - if (arche_pdata->state == state) { - ret = 0; - goto exit; - } - - switch (state) { - case ARCHE_PLATFORM_STATE_TIME_SYNC: - if (arche_pdata->state != ARCHE_PLATFORM_STATE_ACTIVE) { - ret = -EINVAL; - goto exit; - } - if (arche_pdata->wake_detect_state != WD_STATE_IDLE) { - dev_err(arche_pdata->dev, - "driver busy with wake/detect line ops\n"); - goto exit; - } - device_for_each_child(arche_pdata->dev, NULL, - arche_apb_bootret_assert); - arche_pdata->wake_detect_state = WD_STATE_TIMESYNC; - break; - case ARCHE_PLATFORM_STATE_ACTIVE: - if (arche_pdata->state != ARCHE_PLATFORM_STATE_TIME_SYNC) { - ret = -EINVAL; - goto exit; - } - device_for_each_child(arche_pdata->dev, NULL, - arche_apb_bootret_deassert); - arche_pdata->wake_detect_state = WD_STATE_IDLE; - break; - case ARCHE_PLATFORM_STATE_OFF: - case ARCHE_PLATFORM_STATE_STANDBY: - case ARCHE_PLATFORM_STATE_FW_FLASHING: - dev_err(arche_pdata->dev, "busy, request to retry later\n"); - goto exit; - default: - ret = -EINVAL; - dev_err(arche_pdata->dev, - "invalid state transition request\n"); - goto exit; - } - arche_pdata->timesync_svc_pdata = timesync_svc_pdata; - arche_platform_set_state(arche_pdata, state); - if (state == ARCHE_PLATFORM_STATE_ACTIVE) - wake_up(&arche_pdata->wq); - - ret = 0; -exit: - spin_unlock_irqrestore(&arche_pdata->wake_lock, flags); - mutex_unlock(&arche_pdata->platform_state_mutex); - put_device(&pdev->dev); - of_node_put(np); - return ret; -} -EXPORT_SYMBOL_GPL(arche_platform_change_state); - /* Requires arche_pdata->wake_lock is held by calling context */ static void arche_platform_set_wake_detect_state( struct arche_platform_drvdata *arche_pdata, @@ -275,11 +154,6 @@ static irqreturn_t arche_platform_wd_irq(int irq, void *devid)

spin_lock_irqsave(&arche_pdata->wake_lock, flags);

- if (arche_pdata->wake_detect_state == WD_STATE_TIMESYNC) { - gb_timesync_irq(arche_pdata->timesync_svc_pdata); - goto exit; - } - if (gpio_get_value(arche_pdata->wake_detect_gpio)) { /* wake/detect rising */

@@ -323,7 +197,6 @@ static irqreturn_t arche_platform_wd_irq(int irq, void *devid) } }

-exit: spin_unlock_irqrestore(&arche_pdata->wake_lock, flags);

return IRQ_HANDLED; @@ -436,17 +309,7 @@ static ssize_t state_store(struct device *dev, struct arche_platform_drvdata *arche_pdata = platform_get_drvdata(pdev); int ret = 0;

-retry: mutex_lock(&arche_pdata->platform_state_mutex); - if (arche_pdata->state == ARCHE_PLATFORM_STATE_TIME_SYNC) { - mutex_unlock(&arche_pdata->platform_state_mutex); - ret = wait_event_interruptible( - arche_pdata->wq, - arche_pdata->state != ARCHE_PLATFORM_STATE_TIME_SYNC); - if (ret) - return ret; - goto retry; - }

if (sysfs_streq(buf, "off")) { if (arche_pdata->state == ARCHE_PLATFORM_STATE_OFF) @@ -517,8 +380,6 @@ static ssize_t state_show(struct device *dev, return sprintf(buf, "standby\n"); case ARCHE_PLATFORM_STATE_FW_FLASHING: return sprintf(buf, "fw_flashing\n"); - case ARCHE_PLATFORM_STATE_TIME_SYNC: - return sprintf(buf, "time_sync\n"); default: return sprintf(buf, "unknown state\n"); } @@ -665,7 +526,6 @@ static int arche_platform_probe(struct platform_device *pdev)

spin_lock_init(&arche_pdata->wake_lock); mutex_init(&arche_pdata->platform_state_mutex); - init_waitqueue_head(&arche_pdata->wq); arche_pdata->wake_detect_irq = gpio_to_irq(arche_pdata->wake_detect_gpio);

@@ -701,9 +561,6 @@ static int arche_platform_probe(struct platform_device *pdev) goto err_device_remove; }

- /* Register callback pointer */ - arche_platform_change_state_cb = arche_platform_change_state; - /* Explicitly power off if requested */ if (!of_property_read_bool(pdev->dev.of_node, "arche,init-off")) { mutex_lock(&arche_pdata->platform_state_mutex); diff --git a/drivers/staging/greybus/arche_platform.h b/drivers/staging/greybus/arche_platform.h index c0591df9b9d6..bcffc69d0960 100644 --- a/drivers/staging/greybus/arche_platform.h +++ b/drivers/staging/greybus/arche_platform.h @@ -15,14 +15,8 @@ enum arche_platform_state { ARCHE_PLATFORM_STATE_ACTIVE, ARCHE_PLATFORM_STATE_STANDBY, ARCHE_PLATFORM_STATE_FW_FLASHING, - ARCHE_PLATFORM_STATE_TIME_SYNC, };

-int arche_platform_change_state(enum arche_platform_state state, - struct gb_timesync_svc *pdata); - -extern int (*arche_platform_change_state_cb)(enum arche_platform_state state, - struct gb_timesync_svc *pdata); int __init arche_apb_init(void); void __exit arche_apb_exit(void);

@@ -31,7 +25,5 @@ int apb_ctrl_coldboot(struct device *dev); int apb_ctrl_fw_flashing(struct device *dev); int apb_ctrl_standby_boot(struct device *dev); void apb_ctrl_poweroff(struct device *dev); -void apb_bootret_assert(struct device *dev); -void apb_bootret_deassert(struct device *dev);

#endif /* __ARCHE_PLATFORM_H */