[linux-yocto] [PATCH 2/5] driver: net: can: disable clock when it is in enable status
From: Limeng If disable a clock when it is already in disable status, there will be a warning trace generated. So, it is need to confirm whether what status the clock is in before disable it. Signed-off-by: Meng Li --- drivers/net/can/rcar/rcar_can.c | 5 - 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/can/rcar/rcar_can.c b/drivers/net/can/rcar/rcar_can.c index bf5adea9c0a3..b136a238f7eb 100644 --- a/drivers/net/can/rcar/rcar_can.c +++ b/drivers/net/can/rcar/rcar_can.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #define RCAR_CAN_DRV_NAME "rcar_can" @@ -859,7 +860,9 @@ static int __maybe_unused rcar_can_suspend(struct device *dev) writew(ctlr, &priv->regs->ctlr); priv->can.state = CAN_STATE_SLEEPING; - clk_disable(priv->clk); + if(__clk_is_enabled(priv->clk)) + clk_disable(priv->clk); + return 0; } -- 2.17.1 -- ___ linux-yocto mailing list linux-yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/linux-yocto
[linux-yocto] [PATCH 2/5] driver: net: can: disable clock when it is in enable status
From: Limeng If disable a clock when it is already in disable status, there will be a warning trace generated. So, it is need to confirm whether what status the clock is in before disable it. Signed-off-by: Meng Li --- drivers/net/can/rcar/rcar_can.c | 5 - 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/can/rcar/rcar_can.c b/drivers/net/can/rcar/rcar_can.c index bf5adea9c0a3..b136a238f7eb 100644 --- a/drivers/net/can/rcar/rcar_can.c +++ b/drivers/net/can/rcar/rcar_can.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #define RCAR_CAN_DRV_NAME "rcar_can" @@ -859,7 +860,9 @@ static int __maybe_unused rcar_can_suspend(struct device *dev) writew(ctlr, &priv->regs->ctlr); priv->can.state = CAN_STATE_SLEEPING; - clk_disable(priv->clk); + if(__clk_is_enabled(priv->clk)) + clk_disable(priv->clk); + return 0; } -- 2.17.1 -- ___ linux-yocto mailing list linux-yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/linux-yocto
