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Commit 599159b6 authored by Vaibhav Hiremath's avatar Vaibhav Hiremath Committed by Greg Kroah-Hartman
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greybus: arche-platform: Return immediately if in same state from state change fns 



Have a check inside all individual operational state change functions
to check whether device is in same state, and if yes, then return
immediately.

Testing Done: Tested on DB3.5 platform

Signed-off-by: default avatarVaibhav Hiremath <vaibhav.hiremath@linaro.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@google.com>
parent 27e18d8c

drivers/staging/greybus/arche-platform.c

+9 −0
Original line number Diff line number Diff line
@@ -133,6 +133,9 @@ static int arche_platform_coldboot_seq(struct arche_platform_drvdata *arche_pdat 
{

	int ret;



	if (arche_pdata->state == ARCHE_PLATFORM_STATE_ACTIVE)

		return 0;



	dev_info(arche_pdata->dev, "Booting from cold boot state\n");



	svc_reset_onoff(arche_pdata->svc_reset_gpio,
@@ -159,6 +162,9 @@ static int arche_platform_coldboot_seq(struct arche_platform_drvdata *arche_pdat 


static void arche_platform_fw_flashing_seq(struct arche_platform_drvdata *arche_pdata)

{

	if (arche_pdata->state == ARCHE_PLATFORM_STATE_FW_FLASHING)

		return;



	dev_info(arche_pdata->dev, "Switching to FW flashing state\n");



	svc_reset_onoff(arche_pdata->svc_reset_gpio,
@@ -176,6 +182,9 @@ static void arche_platform_fw_flashing_seq(struct arche_platform_drvdata *arche_ 


static void arche_platform_poweroff_seq(struct arche_platform_drvdata *arche_pdata)

{

	if (arche_pdata->state == ARCHE_PLATFORM_STATE_OFF)

		return;



	/* Send disconnect/detach event to SVC */

	gpio_set_value(arche_pdata->wake_detect_gpio, 0);

	usleep_range(100, 200);