Unverified Commit 4247d7f2 authored by Ruihai Zhou's avatar Ruihai Zhou Committed by Mark Brown
Browse files

spi: spi-mt65xx: Support sleep pin control 



Supports configuring sleep pin control during system suspend to prevent
potential power leakage and additional power consumption.

Signed-off-by: default avatarRuihai Zhou <zhouruihai@huaqin.corp-partner.google.com>
Link: https://msgid.link/r/20240108120802.7601-1-zhouruihai@huaqin.corp-partner.google.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 6613476e

drivers/spi/spi-mt65xx.c

+5 −0
Original line number Diff line number Diff line
@@ -13,6 +13,7 @@ 
#include <linux/module.h>

#include <linux/of.h>

#include <linux/gpio/consumer.h>

#include <linux/pinctrl/consumer.h>

#include <linux/platform_device.h>

#include <linux/platform_data/spi-mt65xx.h>

#include <linux/pm_runtime.h>
@@ -1316,6 +1317,8 @@ static int mtk_spi_suspend(struct device *dev) 
		clk_disable_unprepare(mdata->spi_hclk);

	}



	pinctrl_pm_select_sleep_state(dev);



	return 0;

}
@@ -1325,6 +1328,8 @@ static int mtk_spi_resume(struct device *dev) 
	struct spi_controller *host = dev_get_drvdata(dev);

	struct mtk_spi *mdata = spi_controller_get_devdata(host);



	pinctrl_pm_select_default_state(dev);



	if (!pm_runtime_suspended(dev)) {

		ret = clk_prepare_enable(mdata->spi_clk);

		if (ret < 0) {