Thread (58 messages) 58 messages, 6 authors, 2017-07-24

[RFC 2/2] soc: bcm: brcmstb: PM: Implement target_state callback

From: Rafael J. Wysocki <hidden>
Date: 2017-06-29 23:12:05
Also in: linux-pm, lkml

On Thursday, June 22, 2017 06:08:37 PM Florian Fainelli wrote:
quoted hunk ↗ jump to hunk
Provide a target_state callback implementation which just returns the
suspend_state_t the system is about to enter. Broadcom STB drivers can
utilize platform_suspend_target_state() to retrieve that and take
appropriate actions (e.g: full vs. partial re-initialization).

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 drivers/soc/bcm/brcmstb/pm/pm-arm.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
diff --git a/drivers/soc/bcm/brcmstb/pm/pm-arm.c b/drivers/soc/bcm/brcmstb/pm/pm-arm.c
index 4b7e6c297b23..7d4695734093 100644
--- a/drivers/soc/bcm/brcmstb/pm/pm-arm.c
+++ b/drivers/soc/bcm/brcmstb/pm/pm-arm.c
@@ -104,6 +104,7 @@ struct brcmstb_pm_control {
 	u32 phy_b_standby_ctrl_offs;
 	bool needs_ddr_pad;
 	struct platform_device *pdev;
+	suspend_state_t pm_state;
I wouldn't use suspend_state_t here, because the mapping between those
things and real platform power states is somewhat arbitrary and totally
platform-specific.

It's better to define symbols representing platform power states for your
platform (or use an enum) and then use those symbols in the drivers IMO.

Thanks,
Rafael
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