[PATCH 2/3] spi: fsl-lpspi: Fix build warning when !CONFIG_PM

[Axel Lin <axel.lin@xxxxxxxxxx>]

Add #ifdef CONFIG_PM guard to fix build warning when !CONFIG_PM
drivers/spi/spi-fsl-lpspi.c:810:12: warning: ‘fsl_lpspi_runtime_suspend’ defined but not used [-Wunused-function]
 static int fsl_lpspi_runtime_suspend(struct device *dev)
            ^~~~~~~~~~~~~~~~~~~~~~~~~
drivers/spi/spi-fsl-lpspi.c:789:12: warning: ‘fsl_lpspi_runtime_resume’ defined but not used [-Wunused-function]
 static int fsl_lpspi_runtime_resume(struct device *dev)
            ^~~~~~~~~~~~~~~~~~~~~~~~

Fixes: 944c01a889d9 ("spi: lpspi: enable runtime pm for lpspi")
Signed-off-by: Axel Lin <axel.lin@xxxxxxxxxx>
---
 drivers/spi/spi-fsl-lpspi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/spi/spi-fsl-lpspi.c b/drivers/spi/spi-fsl-lpspi.c
index a5c6f27666f3..9b281260fc02 100644
--- a/drivers/spi/spi-fsl-lpspi.c
+++ b/drivers/spi/spi-fsl-lpspi.c
@@ -786,6 +786,7 @@ static irqreturn_t fsl_lpspi_isr(int irq, void *dev_id)
 	return IRQ_NONE;
 }
 
+#ifdef CONFIG_PM
 static int fsl_lpspi_runtime_resume(struct device *dev)
 {
 	struct spi_controller *controller = dev_get_drvdata(dev);
@@ -819,6 +820,7 @@ static int fsl_lpspi_runtime_suspend(struct device *dev)
 
 	return 0;
 }
+#endif
 
 static int fsl_lpspi_init_rpm(struct fsl_lpspi_data *fsl_lpspi)
 {
-- 
2.17.1