[PATCH] can: m_can: select pinctrl state in each suspend/resume function
Bich HEMON
bich.hemon at st.com
Mon Mar 12 01:50:03 PDT 2018
Hi all,
On 03/01/2018 01:29 PM, Bich HEMON wrote:
> 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 at st.com>
> ---
> drivers/net/can/m_can/m_can.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c
> index 2594f77..a86ef69 100644
> --- a/drivers/net/can/m_can/m_can.c
> +++ b/drivers/net/can/m_can/m_can.c
> @@ -1700,6 +1700,8 @@ 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 +1712,8 @@ 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;
>
Sorry, my mistake. Of course this is the wrong mailing list. Please
ignore this patch.
Best regards,
Bich
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