From: Claudiu Beznea Date: Mon, 4 Jun 2018 08:46:33 +0000 (+0300) Subject: mtd: spi-nor: atmel-quadspi: add suspend/resume hooks X-Git-Tag: v4.19-rc1~171^2~1^2~5 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=de217c1cca435a39f79cf9cb9279764688fc1cc4;p=linux.git mtd: spi-nor: atmel-quadspi: add suspend/resume hooks Implement suspend/resume hooks. Signed-off-by: Claudiu Beznea Reviewed-by: Tudor Ambarus Signed-off-by: Boris Brezillon --- diff --git a/drivers/mtd/spi-nor/atmel-quadspi.c b/drivers/mtd/spi-nor/atmel-quadspi.c index 6c5708bacad8..ceaaef47f02e 100644 --- a/drivers/mtd/spi-nor/atmel-quadspi.c +++ b/drivers/mtd/spi-nor/atmel-quadspi.c @@ -737,6 +737,26 @@ static int atmel_qspi_remove(struct platform_device *pdev) return 0; } +static int __maybe_unused atmel_qspi_suspend(struct device *dev) +{ + struct atmel_qspi *aq = dev_get_drvdata(dev); + + clk_disable_unprepare(aq->clk); + + return 0; +} + +static int __maybe_unused atmel_qspi_resume(struct device *dev) +{ + struct atmel_qspi *aq = dev_get_drvdata(dev); + + clk_prepare_enable(aq->clk); + + return atmel_qspi_init(aq); +} + +static SIMPLE_DEV_PM_OPS(atmel_qspi_pm_ops, atmel_qspi_suspend, + atmel_qspi_resume); static const struct of_device_id atmel_qspi_dt_ids[] = { { .compatible = "atmel,sama5d2-qspi" }, @@ -749,6 +769,7 @@ static struct platform_driver atmel_qspi_driver = { .driver = { .name = "atmel_qspi", .of_match_table = atmel_qspi_dt_ids, + .pm = &atmel_qspi_pm_ops, }, .probe = atmel_qspi_probe, .remove = atmel_qspi_remove,