openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

i2c: tegra: Runtime PM always available on Tegra 

The runtime PM is guaranteed to be always available on Tegra after commit
40b2bb1b13 ("ARM: tegra: enforce PM requirement"). Hence let's remove
all the RPM-availability checking and handling from the code.

Reviewed-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
This commit is contained in:
Dmitry Osipenko 2020-09-30 01:18:50 +03:00 committed by Wolfram Sang
parent 8ff727316a
commit 76bc845a78
1 changed files with 6 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
drivers/i2c/busses/i2c-tegra.c
View File

@ -1775,18 +1775,10 @@ static int tegra_i2c_probe(struct platform_device *pdev)
if (!i2c_dev->is_vi)
pm_runtime_irq_safe(&pdev->dev);
pm_runtime_enable(&pdev->dev);
if (!pm_runtime_enabled(&pdev->dev)) {
ret = tegra_i2c_runtime_resume(&pdev->dev);
if (ret < 0) {
dev_err(&pdev->dev, "runtime resume failed\n");
goto unprepare_div_clk;
}
} else {
ret = pm_runtime_get_sync(i2c_dev->dev);
if (ret < 0) {
dev_err(&pdev->dev, "runtime resume failed\n");
goto put_rpm;
}
ret = pm_runtime_get_sync(i2c_dev->dev);
if (ret < 0) {
dev_err(dev, "runtime resume failed\n");
goto put_rpm;
}
if (i2c_dev->is_multimaster_mode) {
@ -1845,15 +1837,8 @@ static int tegra_i2c_probe(struct platform_device *pdev)
clk_disable(i2c_dev->div_clk);
put_rpm:
if (pm_runtime_enabled(&pdev->dev))
pm_runtime_put_sync(&pdev->dev);
else
tegra_i2c_runtime_suspend(&pdev->dev);
if (pm_runtime_enabled(&pdev->dev))
pm_runtime_disable(&pdev->dev);
unprepare_div_clk:
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
clk_unprepare(i2c_dev->div_clk);
unprepare_slow_clk:
@ -1875,8 +1860,6 @@ static int tegra_i2c_remove(struct platform_device *pdev)
clk_disable(i2c_dev->div_clk);
pm_runtime_disable(&pdev->dev);
if (!pm_runtime_status_suspended(&pdev->dev))
tegra_i2c_runtime_suspend(&pdev->dev);
clk_unprepare(i2c_dev->div_clk);
clk_unprepare(i2c_dev->slow_clk);