[RFC PATCH 07/11] regulator: Make fixed regulator driver extract data from DT
From: Rajendra Nayak <hidden>
Date: 2011-09-15 11:22:03
Also in:
linux-arm-kernel, linux-omap
Subsystem:
the rest, voltage and current regulator framework · Maintainers:
Linus Torvalds, Liam Girdwood, Mark Brown
Modify the fixed regulator driver to extract fixed_voltage_config from device tree when passed, instead of getting it through platform_data structures (on non-DT builds) Signed-off-by: Rajendra Nayak <redacted> --- drivers/regulator/fixed.c | 20 +++++++++++++++++++- 1 files changed, 19 insertions(+), 1 deletions(-)
diff --git a/drivers/regulator/fixed.c b/drivers/regulator/fixed.c
index 2fe9d99..a214b30 100644
--- a/drivers/regulator/fixed.c
+++ b/drivers/regulator/fixed.c@@ -26,6 +26,8 @@ #include <linux/gpio.h> #include <linux/delay.h> #include <linux/slab.h> +#include <linux/of.h> +#include <linux/of_regulator.h> struct fixed_voltage_data { struct regulator_desc desc;
@@ -104,10 +106,15 @@ static struct regulator_ops fixed_voltage_ops = { static int __devinit reg_fixed_voltage_probe(struct platform_device *pdev) { - struct fixed_voltage_config *config = pdev->dev.platform_data; + struct fixed_voltage_config *config; struct fixed_voltage_data *drvdata; int ret; + if (pdev->dev.of_node) + config = of_get_fixed_voltage_config(pdev->dev.of_node); + else + config = pdev->dev.platform_data; + drvdata = kzalloc(sizeof(struct fixed_voltage_data), GFP_KERNEL); if (drvdata == NULL) { dev_err(&pdev->dev, "Failed to allocate device data\n");
@@ -216,12 +223,23 @@ static int __devexit reg_fixed_voltage_remove(struct platform_device *pdev) return 0; } +#if defined(CONFIG_OF) +static const struct of_device_id fixed_of_match[] __devinitconst = { + { .compatible = "regulator-fixed", }, + {}, +}; +MODULE_DEVICE_TABLE(of, fixed_of_match); +#else +#define fixed_of_match NULL +#endif + static struct platform_driver regulator_fixed_voltage_driver = { .probe = reg_fixed_voltage_probe, .remove = __devexit_p(reg_fixed_voltage_remove), .driver = { .name = "reg-fixed-voltage", .owner = THIS_MODULE, + .of_match_table = fixed_of_match, }, };
--
1.7.1