hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

spi: rspi: Add runtime PM support, using spi core auto_runtime_pm 

Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Geert Uytterhoeven 2014-03-11 10:59:12 +01:00 committed by Mark Brown
parent ba824d4971
commit 490c97747d
1 changed files with 5 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/spi/spi-rspi.c
View File

@ -33,6 +33,7 @@
#include <linux/dmaengine.h>
#include <linux/dma-mapping.h>
#include <linux/of_device.h>
#include <linux/pm_runtime.h>
#include <linux/sh_dma.h>
#include <linux/spi/spi.h>
#include <linux/spi/rspi.h>
@ -1111,7 +1112,7 @@ static int rspi_remove(struct platform_device *pdev)
struct rspi_data *rspi = platform_get_drvdata(pdev);
rspi_release_dma(rspi);
clk_disable_unprepare(rspi->clk);
pm_runtime_disable(&pdev->dev);
return 0;
}
@ -1242,16 +1243,13 @@ static int rspi_probe(struct platform_device *pdev)
goto error1;
}
ret = clk_prepare_enable(rspi->clk);
if (ret < 0) {
dev_err(&pdev->dev, "unable to prepare/enable clock\n");
goto error1;
}
pm_runtime_enable(&pdev->dev);
init_waitqueue_head(&rspi->wait);
master->bus_num = pdev->id;
master->setup = rspi_setup;
master->auto_runtime_pm = true;
master->transfer_one = ops->transfer_one;
master->prepare_message = rspi_prepare_message;
master->unprepare_message = rspi_unprepare_message;
@ -1312,7 +1310,7 @@ static int rspi_probe(struct platform_device *pdev)
error3:
rspi_release_dma(rspi);
error2:
clk_disable_unprepare(rspi->clk);
pm_runtime_disable(&pdev->dev);
error1:
spi_master_put(master);