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Date: Mon, 12 Mar 2018 08:52:37 +0000 From: Bich HEMON <bich.hemon@...com> To: Wolfgang Grandegger <wg@...ndegger.com>, Marc Kleine-Budde <mkl@...gutronix.de>, Mario Huettel <mario.huettel@....net>, Faiz Abbas <faiz_abbas@...com>, Quentin Schulz <quentin.schulz@...e-electrons.com>, Oliver Hartkopp <socketcan@...tkopp.net>, Franklin S Cooper Jr <fcooper@...com>, Arnd Bergmann <arnd@...db.de>, "linux-can@...r.kernel.org" <linux-can@...r.kernel.org>, "netdev@...r.kernel.org" <netdev@...r.kernel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> CC: Bich HEMON <bich.hemon@...com> Subject: [PATCH] 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@...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; -- 1.9.1
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