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| author | Ruihai Zhou <zhouruihai@huaqin.corp-partner.google.com> | 2024-01-08 20:08:02 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2024-01-22 00:06:51 +0000 |
| commit | 4247d7f2ca564bbede54054da1f35a359bb061bd (patch) | |
| tree | 963db7ca1829fd1c548bc81aeb782a94a072ecb7 /drivers/spi/spi-mt65xx.c | |
| parent | 6613476e225e090cc9aad49be7fa504e290dd33d (diff) | |
| download | lwn-4247d7f2ca564bbede54054da1f35a359bb061bd.tar.gz lwn-4247d7f2ca564bbede54054da1f35a359bb061bd.zip | |
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>
Diffstat (limited to 'drivers/spi/spi-mt65xx.c')
| -rw-r--r-- | drivers/spi/spi-mt65xx.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c index 8d5d170d49cc..8d4633b353ee 100644 --- a/drivers/spi/spi-mt65xx.c +++ b/drivers/spi/spi-mt65xx.c @@ -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) { |