[RFC/PATCH v2 10/16] soc: bcm: bcm2835-power: Bypass power_on/off() calls

From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
To: f.fainelli@gmail.com, linux-kernel@vger.kernel.org,
	Ray Jui <rjui@broadcom.com>,
	Scott Branden <sbranden@broadcom.com>,
	bcm-kernel-feedback-list@broadcom.com,
	Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Cc: linux-rpi-kernel@lists.infradead.org, phil@raspberrypi.com,
	wahrenst@gmx.net, linux-arm-kernel@lists.infradead.org,
	mripard@kernel.org, eric@anholt.net
Subject: [RFC/PATCH v2 10/16] soc: bcm: bcm2835-power: Bypass power_on/off() calls
Date: Tue,  9 Feb 2021 13:59:06 +0100	[thread overview]
Message-ID: <20210209125912.3398-11-nsaenzjulienne@suse.de> (raw)
In-Reply-To: <20210209125912.3398-1-nsaenzjulienne@suse.de>

Bypass power_on/power_off() when running on BCM2711 as they are not
needed.

Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
---
 drivers/soc/bcm/bcm2835-power.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/soc/bcm/bcm2835-power.c b/drivers/soc/bcm/bcm2835-power.c
index 42e105758b47..e9c425419174 100644
--- a/drivers/soc/bcm/bcm2835-power.c
+++ b/drivers/soc/bcm/bcm2835-power.c
@@ -197,6 +197,10 @@ static int bcm2835_power_power_off(struct bcm2835_power_domain *pd, u32 pm_reg)
 {
 	struct bcm2835_power *power = pd->power;
 
+	/* We don't run this on BCM2711 */
+	if (power->argon_asb)
+		return 0;
+
 	/* Enable functional isolation */
 	PM_WRITE(pm_reg, PM_READ(pm_reg) & ~PM_ISFUNC);
 
@@ -218,6 +222,10 @@ static int bcm2835_power_power_on(struct bcm2835_power_domain *pd, u32 pm_reg)
 	int inrush;
 	bool powok;
 
+	/* We don't run this on BCM2711 */
+	if (power->argon_asb)
+		return 0;
+
 	/* If it was already powered on by the fw, leave it that way. */
 	if (PM_READ(pm_reg) & PM_POWUP)
 		return 0;
-- 
2.30.0

