linux-kernel - [PATCH] mfd: rk808: Always use poweroff when requested

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Message-Id: <20191209115746.12953-1-smoch@web.de>
Date:   Mon,  9 Dec 2019 12:57:46 +0100
From:   Soeren Moch <smoch@....de>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     Soeren Moch <smoch@....de>, Heiko Stuebner <heiko@...ech.de>,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] mfd: rk808: Always use poweroff when requested

With the device tree property "rockchip,system-power-controller" we
explicitly request to use this PMIC to power off the system. So always
register our poweroff function, even if some other handler (probably
PSCI poweroff) was registered before.

Signed-off-by: Soeren Moch <smoch@....de>
---
Cc: Lee Jones <lee.jones@...aro.org>
Cc: Heiko Stuebner <heiko@...ech.de>
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-rockchip@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org
---
 drivers/mfd/rk808.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk808.c
index a69a6742ecdc..616e44e7ef98 100644
--- a/drivers/mfd/rk808.c
+++ b/drivers/mfd/rk808.c
@@ -550,7 +550,7 @@ static int rk808_probe(struct i2c_client *client,
 	const struct mfd_cell *cells;
 	int nr_pre_init_regs;
 	int nr_cells;
-	int pm_off = 0, msb, lsb;
+	int msb, lsb;
 	unsigned char pmic_id_msb, pmic_id_lsb;
 	int ret;
 	int i;
@@ -674,16 +674,9 @@ static int rk808_probe(struct i2c_client *client,
 		goto err_irq;
 	}

-	pm_off = of_property_read_bool(np,
-				"rockchip,system-power-controller");
-	if (pm_off && !pm_power_off) {
+	if (of_property_read_bool(np, "rockchip,system-power-controller")) {
 		rk808_i2c_client = client;
 		pm_power_off = rk808->pm_pwroff_fn;
-	}
-
-	if (pm_off && !pm_power_off_prepare) {
-		if (!rk808_i2c_client)
-			rk808_i2c_client = client;
 		pm_power_off_prepare = rk808->pm_pwroff_prep_fn;
 	}

--
2.17.1