[PATCH 8/9] soc: ti: pm33xx: Enable basic PM runtime support for genpd
From: Tony Lindgren <tony@atomide.com>
Date: 2020-11-10 11:21:26
Also in:
linux-clk, linux-omap, linux-remoteproc, lkml
Subsystem:
the rest, ti keystone multicore navigator drivers · Maintainers:
Linus Torvalds, Nishanth Menon, Santosh Shilimkar
To prepare for moving to use genpd, let's enable basic PM runtime support. Cc: Dave Gerlach <redacted> Cc: Santosh Shilimkar <ssantosh@kernel.org> Cc: Suman Anna <redacted> Signed-off-by: Tony Lindgren <tony@atomide.com> --- drivers/soc/ti/pm33xx.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-)
diff --git a/drivers/soc/ti/pm33xx.c b/drivers/soc/ti/pm33xx.c
--- a/drivers/soc/ti/pm33xx.c
+++ b/drivers/soc/ti/pm33xx.c@@ -19,6 +19,7 @@ #include <linux/of_address.h> #include <linux/platform_data/pm33xx.h> #include <linux/platform_device.h> +#include <linux/pm_runtime.h> #include <linux/rtc.h> #include <linux/rtc/rtc-omap.h> #include <linux/sizes.h>
@@ -555,16 +556,26 @@ static int am33xx_pm_probe(struct platform_device *pdev) suspend_wfi_flags |= WFI_FLAG_WAKE_M3; #endif /* CONFIG_SUSPEND */ + pm_runtime_enable(dev); + ret = pm_runtime_get_sync(dev); + if (ret < 0) { + pm_runtime_put_noidle(dev); + goto err_pm_runtime_disable; + } + ret = pm_ops->init(am33xx_do_sram_idle); if (ret) { dev_err(dev, "Unable to call core pm init!\n"); ret = -ENODEV; - goto err_put_wkup_m3_ipc; + goto err_pm_runtime_put; } return 0; -err_put_wkup_m3_ipc: +err_pm_runtime_put: + pm_runtime_put_sync(dev); +err_pm_runtime_disable: + pm_runtime_disable(dev); wkup_m3_ipc_put(m3_ipc); err_free_sram: am33xx_pm_free_sram();
@@ -574,6 +585,8 @@ static int am33xx_pm_probe(struct platform_device *pdev) static int am33xx_pm_remove(struct platform_device *pdev) { + pm_runtime_put_sync(&pdev->dev); + pm_runtime_disable(&pdev->dev); if (pm_ops->deinit) pm_ops->deinit(); suspend_set_ops(NULL);
--
2.29.2
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