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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: Ruihai Zhou <zhouruihai@huaqin.corp-partner.google.com>
Link: https://msgid.link/r/20240108120802.7601-1-zhouruihai@huaqin.corp-partner.google.com
Signed-off-by: Mark Brown <broonie@kernel.org>
pull/819/head
Ruihai Zhou 2024-01-08 20:08:02 +08:00 committed by Mark Brown
parent 6613476e22
commit 4247d7f2ca
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1 changed files with 5 additions and 0 deletions
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5
drivers/spi/spi-mt65xx.c
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@ -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) {