Unverified Commit 0098c527 authored by Douglas Anderson's avatar Douglas Anderson Committed by Mark Brown
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spi: spi-qcom-qspi: Support pinctrl sleep states 



It's fairly common practice for drivers to switch to a "sleep" pinctrl
state at the end of its runtime_suspend function and then back to
"default" at the beginning of runtime_resume. Let's do that for
spi-qcom-qspi.

Signed-off-by: default avatarDouglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20230323102605.5.I79544b9486033bd7b27f2be55adda6d36f62a366@changeid


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 5936e77c

drivers/spi/spi-qcom-qspi.c

+5 −0
Original line number Diff line number Diff line
@@ -8,6 +8,7 @@ 
#include <linux/module.h>

#include <linux/of.h>

#include <linux/of_platform.h>

#include <linux/pinctrl/consumer.h>

#include <linux/pm_runtime.h>

#include <linux/pm_opp.h>

#include <linux/spi/spi.h>
@@ -579,6 +580,8 @@ static int __maybe_unused qcom_qspi_runtime_suspend(struct device *dev) 
		return ret;

	}



	pinctrl_pm_select_sleep_state(dev);



	return 0;

}
@@ -588,6 +591,8 @@ static int __maybe_unused qcom_qspi_runtime_resume(struct device *dev) 
	struct qcom_qspi *ctrl = spi_master_get_devdata(master);

	int ret;



	pinctrl_pm_select_default_state(dev);



	ret = icc_enable(ctrl->icc_path_cpu_to_qspi);

	if (ret) {

		dev_err_ratelimited(ctrl->dev, "%s: ICC enable failed for cpu: %d\n",