diff options
| author | Bich HEMON <bich.hemon@st.com> | 2018-03-12 08:52:37 +0000 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2018-03-12 10:38:20 +0100 |
| commit | c9b3bce18da4a0aebc27853052dea39aa64b7d75 (patch) | |
| tree | 0d1f09eac8c3bd88a332a0480118456abe5f4820 /drivers/net/can/m_can/m_can.c | |
| parent | ffd137f7043cb30067e1bff6fe62a073ae190b23 (diff) | |
can: m_can: select pinctrl state in each suspend/resume function
Make sure to apply the correct pin state in suspend/resume callbacks.
Putting pins in sleep state saves power.
Signed-off-by: Bich Hemon <bich.hemon@st.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can/m_can/m_can.c')
| -rw-r--r-- | drivers/net/can/m_can/m_can.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c index 74170b0d23cf..b397a33f3d32 100644 --- a/drivers/net/can/m_can/m_can.c +++ b/drivers/net/can/m_can/m_can.c @@ -26,6 +26,7 @@ #include <linux/pm_runtime.h> #include <linux/iopoll.h> #include <linux/can/dev.h> +#include <linux/pinctrl/consumer.h> /* napi related */ #define M_CAN_NAPI_WEIGHT 64 @@ -1700,6 +1701,8 @@ static __maybe_unused int m_can_suspend(struct device *dev) m_can_clk_stop(priv); } + pinctrl_pm_select_sleep_state(dev); + priv->can.state = CAN_STATE_SLEEPING; return 0; @@ -1710,6 +1713,8 @@ static __maybe_unused int m_can_resume(struct device *dev) struct net_device *ndev = dev_get_drvdata(dev); struct m_can_priv *priv = netdev_priv(ndev); + pinctrl_pm_select_default_state(dev); + m_can_init_ram(priv); priv->can.state = CAN_STATE_ERROR_ACTIVE; |