From b84530ba478f05aab785ce1341fc39eb45fcb32e Mon Sep 17 00:00:00 2001 From: Yuji Sasaki Date: Fri, 14 Feb 2020 13:13:40 +0530 Subject: [PATCH] spi: qup: call spi_qup_pm_resume_runtime before suspending [ Upstream commit 136b5cd2e2f97581ae560cff0db2a3b5369112da ] spi_qup_suspend() will cause synchronous external abort when runtime suspend is enabled and applied, as it tries to access SPI controller register while clock is already disabled in spi_qup_pm_suspend_runtime(). Signed-off-by: Yuji sasaki Signed-off-by: Vinod Koul Link: https://lore.kernel.org/r/20200214074340.2286170-1-vkoul@kernel.org Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- drivers/spi/spi-qup.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/spi/spi-qup.c b/drivers/spi/spi-qup.c index 974a8ce..cb74fd1 100644 --- a/drivers/spi/spi-qup.c +++ b/drivers/spi/spi-qup.c @@ -1190,6 +1190,11 @@ static int spi_qup_suspend(struct device *device) struct spi_qup *controller = spi_master_get_devdata(master); int ret; + if (pm_runtime_suspended(device)) { + ret = spi_qup_pm_resume_runtime(device); + if (ret) + return ret; + } ret = spi_master_suspend(master); if (ret) return ret; @@ -1198,10 +1203,8 @@ static int spi_qup_suspend(struct device *device) if (ret) return ret; - if (!pm_runtime_suspended(device)) { - clk_disable_unprepare(controller->cclk); - clk_disable_unprepare(controller->iclk); - } + clk_disable_unprepare(controller->cclk); + clk_disable_unprepare(controller->iclk); return 0; } -- 2.7.4