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path: root/drivers/staging/greybus/arche-apb-ctrl.c
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Diffstat (limited to 'drivers/staging/greybus/arche-apb-ctrl.c')
-rw-r--r--drivers/staging/greybus/arche-apb-ctrl.c13
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/staging/greybus/arche-apb-ctrl.c b/drivers/staging/greybus/arche-apb-ctrl.c
index 3086306f04fb..c2f0776f04f4 100644
--- a/drivers/staging/greybus/arche-apb-ctrl.c
+++ b/drivers/staging/greybus/arche-apb-ctrl.c
@@ -67,7 +67,8 @@ static int coldboot_seq(struct platform_device *pdev)
struct arche_apb_ctrl_drvdata *apb = platform_get_drvdata(pdev);
int ret;
- if (apb->init_disabled)
+ if (apb->init_disabled ||
+ apb->state == ARCHE_PLATFORM_STATE_ACTIVE)
return 0;
/* Hold APB in reset state */
@@ -112,7 +113,8 @@ static int fw_flashing_seq(struct platform_device *pdev)
struct arche_apb_ctrl_drvdata *apb = platform_get_drvdata(pdev);
int ret;
- if (apb->init_disabled)
+ if (apb->init_disabled ||
+ apb->state == ARCHE_PLATFORM_STATE_FW_FLASHING)
return 0;
ret = regulator_enable(apb->vcore);
@@ -141,8 +143,9 @@ static int standby_boot_seq(struct platform_device *pdev)
if (apb->init_disabled)
return 0;
- /* If it is in OFF state, then we do not want to change the state */
- if (apb->state == ARCHE_PLATFORM_STATE_OFF)
+ /* Even if it is in OFF state, then we do not want to change the state */
+ if (apb->state == ARCHE_PLATFORM_STATE_STANDBY ||
+ apb->state == ARCHE_PLATFORM_STATE_OFF)
return 0;
/*
@@ -162,7 +165,7 @@ static void poweroff_seq(struct platform_device *pdev)
{
struct arche_apb_ctrl_drvdata *apb = platform_get_drvdata(pdev);
- if (apb->init_disabled)
+ if (apb->init_disabled || apb->state == ARCHE_PLATFORM_STATE_OFF)
return;
/* disable the clock */