linux-kernel - [PATCH v2 2/4] regulator: Set ena_gpio

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <1412776028-15655-3-git-send-email-mpa@pengutronix.de>
Date:	Wed,  8 Oct 2014 15:47:06 +0200
From:	Markus Pargmann <mpa@...gutronix.de>
To:	Mark Brown <broonie@...nel.org>
Cc:	Liam Girdwood <lgirdwood@...il.com>,
	Krzysztof Kozłowski <k.kozlowski@...sung.com>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	kernel@...gutronix.de, Markus Pargmann <mpa@...gutronix.de>
Subject: [PATCH v2 2/4] regulator: Set ena_gpio_initialized in regulator drivers

This patch sets ena_gpio_initialized for all drivers which set a
ena_gpio from parsed DT properties. Drivers using pdata may get zero
initialized pdata and therefore copy a 0 into the regulator_config
ena_gpio field.

Signed-off-by: Markus Pargmann <mpa@...gutronix.de>
---
 drivers/regulator/arizona-ldo1.c       | 1 +
 drivers/regulator/fixed.c              | 4 +++-
 drivers/regulator/gpio-regulator.c     | 4 +++-
 drivers/regulator/max8952.c            | 2 ++
 drivers/regulator/s2mps11.c            | 1 +
 drivers/regulator/s5m8767.c            | 1 +
 drivers/regulator/tps65090-regulator.c | 1 +
 drivers/regulator/wm8994-regulator.c   | 6 ++++--
 8 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/drivers/regulator/arizona-ldo1.c b/drivers/regulator/arizona-ldo1.c
index 4c9db589f6c1..f4ecf18222d3 100644
--- a/drivers/regulator/arizona-ldo1.c
+++ b/drivers/regulator/arizona-ldo1.c
@@ -260,6 +260,7 @@ static int arizona_ldo1_probe(struct platform_device *pdev)
 			ret = arizona_ldo1_of_get_pdata(arizona, &config);
 			if (ret < 0)
 				return ret;
+			config.ena_gpio_initialized = true;
 		}
 	}
 
diff --git a/drivers/regulator/fixed.c b/drivers/regulator/fixed.c
index 354105eff1f8..441a3e90e266 100644
--- a/drivers/regulator/fixed.c
+++ b/drivers/regulator/fixed.c
@@ -157,8 +157,10 @@ static int reg_fixed_voltage_probe(struct platform_device *pdev)
 
 	drvdata->desc.fixed_uV = config->microvolts;
 
-	if (config->gpio >= 0)
+	if (config->gpio >= 0) {
 		cfg.ena_gpio = config->gpio;
+		cfg.ena_gpio_initialized = true;
+	}
 	cfg.ena_gpio_invert = !config->enable_high;
 	if (config->enabled_at_boot) {
 		if (config->enable_high)
diff --git a/drivers/regulator/gpio-regulator.c b/drivers/regulator/gpio-regulator.c
index 989b23b377c0..5da0125fac6a 100644
--- a/drivers/regulator/gpio-regulator.c
+++ b/drivers/regulator/gpio-regulator.c
@@ -322,8 +322,10 @@ static int gpio_regulator_probe(struct platform_device *pdev)
 	cfg.driver_data = drvdata;
 	cfg.of_node = np;
 
-	if (config->enable_gpio >= 0)
+	if (config->enable_gpio >= 0) {
 		cfg.ena_gpio = config->enable_gpio;
+		cfg.ena_gpio_initialized = true;
+	}
 	cfg.ena_gpio_invert = !config->enable_high;
 	if (config->enabled_at_boot) {
 		if (config->enable_high)
diff --git a/drivers/regulator/max8952.c b/drivers/regulator/max8952.c
index f7f9efcfedb7..6d1802b596ec 100644
--- a/drivers/regulator/max8952.c
+++ b/drivers/regulator/max8952.c
@@ -225,6 +225,8 @@ static int max8952_pmic_probe(struct i2c_client *client,
 	config.of_node = client->dev.of_node;
 
 	config.ena_gpio = pdata->gpio_en;
+	if (!pdata)
+		config.ena_gpio_initialized = true;
 	if (pdata->reg_data->constraints.boot_on)
 		config.ena_gpio_flags |= GPIOF_OUT_INIT_HIGH;
 
diff --git a/drivers/regulator/s2mps11.c b/drivers/regulator/s2mps11.c
index adab82d5279f..49b9e1ddc87e 100644
--- a/drivers/regulator/s2mps11.c
+++ b/drivers/regulator/s2mps11.c
@@ -897,6 +897,7 @@ common_reg:
 			config.of_node = rdata[i].of_node;
 		}
 		config.ena_gpio = s2mps11->ext_control_gpio[i];
+		config.ena_gpio_initialized = true;
 
 		regulator = devm_regulator_register(&pdev->dev,
 						&regulators[i], &config);
diff --git a/drivers/regulator/s5m8767.c b/drivers/regulator/s5m8767.c
index 0ab5cbeeb797..7f176cdb7e37 100644
--- a/drivers/regulator/s5m8767.c
+++ b/drivers/regulator/s5m8767.c
@@ -466,6 +466,7 @@ static void s5m8767_regulator_config_ext_control(struct s5m8767_info *s5m8767,
 	}
 
 	config->ena_gpio = rdata->ext_control_gpio;
+	config->ena_gpio_initialized = true;
 	config->ena_gpio_flags = GPIOF_OUT_INIT_HIGH;
 }
 
diff --git a/drivers/regulator/tps65090-regulator.c b/drivers/regulator/tps65090-regulator.c
index d5df1e9ad1da..2e92aa8718cc 100644
--- a/drivers/regulator/tps65090-regulator.c
+++ b/drivers/regulator/tps65090-regulator.c
@@ -312,6 +312,7 @@ static void tps65090_configure_regulator_config(
 			gpio_flag = GPIOF_OUT_INIT_HIGH;
 
 		config->ena_gpio = tps_pdata->gpio;
+		config->ena_gpio_initialized = true;
 		config->ena_gpio_flags = gpio_flag;
 	}
 }
diff --git a/drivers/regulator/wm8994-regulator.c b/drivers/regulator/wm8994-regulator.c
index c24346db8a71..88f5064e412b 100644
--- a/drivers/regulator/wm8994-regulator.c
+++ b/drivers/regulator/wm8994-regulator.c
@@ -145,10 +145,12 @@ static int wm8994_ldo_probe(struct platform_device *pdev)
 	config.driver_data = ldo;
 	config.regmap = wm8994->regmap;
 	config.init_data = &ldo->init_data;
-	if (pdata)
+	if (pdata) {
 		config.ena_gpio = pdata->ldo[id].enable;
-	else if (wm8994->dev->of_node)
+	} else if (wm8994->dev->of_node) {
 		config.ena_gpio = wm8994->pdata.ldo[id].enable;
+		config.ena_gpio_initialized = true;
+	}
 
 	/* Use default constraints if none set up */
 	if (!pdata || !pdata->ldo[id].init_data || wm8994->dev->of_node) {
-- 
2.1.0

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/