From 23e21ddf6c3d9cb37aa69da496f80e8481e2c8bd Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 23 Jan 2014 15:20:01 +0100 Subject: [PATCH 1/3] regulator: ab3100: cast fix MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The AB3100 regulator driver emits a warning when compiled on 64bit systems like this: drivers/regulator/ab3100.c: In function ‘ab3100_regulator_of_probe’: srivers/regulator/ab3100.c:649:4: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] As the int is a different size than the 64bit pointer used to pass regulator data. Switch to using an unsigned long as ID passed for the regulator to get rid of the warning. Reported-by: Lee Jones Signed-off-by: Linus Walleij Signed-off-by: Mark Brown --- drivers/regulator/ab3100.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/regulator/ab3100.c b/drivers/regulator/ab3100.c index 77b46d0b37a6..e10febe9ec34 100644 --- a/drivers/regulator/ab3100.c +++ b/drivers/regulator/ab3100.c @@ -498,7 +498,7 @@ static int ab3100_regulator_register(struct platform_device *pdev, struct ab3100_platform_data *plfdata, struct regulator_init_data *init_data, struct device_node *np, - int id) + unsigned long id) { struct regulator_desc *desc; struct ab3100_regulator *reg; @@ -646,7 +646,7 @@ ab3100_regulator_of_probe(struct platform_device *pdev, struct device_node *np) err = ab3100_regulator_register( pdev, NULL, ab3100_regulator_matches[i].init_data, ab3100_regulator_matches[i].of_node, - (int) ab3100_regulator_matches[i].driver_data); + (unsigned long)ab3100_regulator_matches[i].driver_data); if (err) { ab3100_regulators_remove(pdev); return err; From 317b5684d52269b75b4ec6480f9dac056d0d4ba8 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 27 Jan 2014 17:34:07 +0000 Subject: [PATCH 2/3] regulator: core: Correct default return value for full constraints Once we have full constraints then all supply mappings should be known to the regulator API. This means that we should treat failed lookups as fatal rather than deferring in the hope of further registrations but this was broken by commit 9b92da1f1205bd25 "regulator: core: Fix default return value for _get()" which was targeted at DT systems but unintentionally broke non-DT systems by changing the default return value. Fix this by explicitly returning -EPROBE_DEFER from the DT lookup if we find a property but no corresponding regulator and by having the non-DT case default to -ENODEV when we have full constraints. Fixes: 9b92da1f1205bd25 "regulator: core: Fix default return value for _get()" Signed-off-by: Mark Brown Tested-by: Guenter Roeck Cc: stable@vger.kernel.org --- drivers/regulator/core.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index b38a6b669e8c..16a309e5c024 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1272,6 +1272,8 @@ static struct regulator_dev *regulator_dev_lookup(struct device *dev, if (r->dev.parent && node == r->dev.of_node) return r; + *ret = -EPROBE_DEFER; + return NULL; } else { /* * If we couldn't even get the node then it's @@ -1312,7 +1314,7 @@ static struct regulator *_regulator_get(struct device *dev, const char *id, struct regulator_dev *rdev; struct regulator *regulator = ERR_PTR(-EPROBE_DEFER); const char *devname = NULL; - int ret = -EPROBE_DEFER; + int ret; if (id == NULL) { pr_err("get() with no identifier\n"); @@ -1322,6 +1324,11 @@ static struct regulator *_regulator_get(struct device *dev, const char *id, if (dev) devname = dev_name(dev); + if (have_full_constraints()) + ret = -ENODEV; + else + ret = -EPROBE_DEFER; + mutex_lock(®ulator_list_mutex); rdev = regulator_dev_lookup(dev, id, &ret); From 54820f5802295993b78a373e404e7561039b399d Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Thu, 30 Jan 2014 14:51:19 +0100 Subject: [PATCH 3/3] regulator: s2mps11: Fix NULL pointer of_node value when using platform data When platform_data is used for regulator (of_node of sec-core MFD device is NULL) the config.of_node for regulator is not initialized. This NULL value of config.of_node is later stored during regulator_register(). Thus any call by regulator consumers to of_get_regulator() will fail on of_parse_phandle() returning NULL. In this case (using platform_data and parent's driver of_node is NULL) set the config.of_node to reg_node from platform_data. Signed-off-by: Krzysztof Kozlowski Signed-off-by: Mark Brown --- drivers/regulator/s2mps11.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/regulator/s2mps11.c b/drivers/regulator/s2mps11.c index d9e557990577..cd0b9e35a56d 100644 --- a/drivers/regulator/s2mps11.c +++ b/drivers/regulator/s2mps11.c @@ -441,6 +441,7 @@ static int s2mps11_pmic_probe(struct platform_device *pdev) for (i = 0; i < S2MPS11_REGULATOR_MAX; i++) { if (!reg_np) { config.init_data = pdata->regulators[i].initdata; + config.of_node = pdata->regulators[i].reg_node; } else { config.init_data = rdata[i].init_data; config.of_node = rdata[i].of_node;