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authorOlof Johansson <olof@lixom.net>2013-07-12 19:59:39 +0200
committerOlof Johansson <olof@lixom.net>2013-07-12 19:59:39 +0200
commitf4b96f5e4ff8d86699c851c10245e102809b0331 (patch)
treef766102263bed71738431cabb4d4f6f086005cd8 /drivers/leds/leds-lp55xx-common.c
parentARM: omap2: add select of TI_PRIV_EDMA (diff)
parentARM: OMAP2+: omap2plus_defconfig: Enable appended DTB support (diff)
downloadlinux-f4b96f5e4ff8d86699c851c10245e102809b0331.tar.xz
linux-f4b96f5e4ff8d86699c851c10245e102809b0331.zip
Merge tag 'omap-for-v3.11/fixes-for-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Omap fixes and minor defconfig updates that would be good to get in before -rc1. * tag 'omap-for-v3.11/fixes-for-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP2+: omap2plus_defconfig: Enable appended DTB support ARM: OMAP2+: Enable TI_EDMA in omap2plus_defconfig ARM: OMAP2+: omap2plus_defconfig: enable DRA752 thermal support by default ARM: OMAP2+: omap2plus_defconfig: enable TI bandgap driver ARM: OMAP2+: devices: remove duplicated include from devices.c ARM: OMAP3: igep0020: Set DSS pins in correct mux mode. ARM: OMAP2+: N900: enable N900-specific drivers even if device tree is enabled ARM: OMAP2+: Cocci spatch "ptr_ret.spatch" ARM: OMAP2+: Remove obsolete Makefile line ARM: OMAP5: Enable Cortex A15 errata 798181 ARM: scu: provide inline dummy functions when SCU is not present ARM: OMAP4: sleep: build OMAP4 specific functions only for OMAP4 ARM: OMAP2+: timer: initialize before using oh_name Signed-off-by: Olof Johansson <olof@lixom.net> Add/move/change conflicts in arch/arm/mach-omap2/Kconfig resolved.
Diffstat (limited to 'drivers/leds/leds-lp55xx-common.c')
-rw-r--r--drivers/leds/leds-lp55xx-common.c45
1 files changed, 45 insertions, 0 deletions
diff --git a/drivers/leds/leds-lp55xx-common.c b/drivers/leds/leds-lp55xx-common.c
index ba34199dc3d9..c2fecd4d391c 100644
--- a/drivers/leds/leds-lp55xx-common.c
+++ b/drivers/leds/leds-lp55xx-common.c
@@ -19,6 +19,7 @@
#include <linux/leds.h>
#include <linux/module.h>
#include <linux/platform_data/leds-lp55xx.h>
+#include <linux/slab.h>
#include "leds-lp55xx-common.h"
@@ -554,6 +555,50 @@ void lp55xx_unregister_sysfs(struct lp55xx_chip *chip)
}
EXPORT_SYMBOL_GPL(lp55xx_unregister_sysfs);
+int lp55xx_of_populate_pdata(struct device *dev, struct device_node *np)
+{
+ struct device_node *child;
+ struct lp55xx_platform_data *pdata;
+ struct lp55xx_led_config *cfg;
+ int num_channels;
+ int i = 0;
+
+ pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return -ENOMEM;
+
+ num_channels = of_get_child_count(np);
+ if (num_channels == 0) {
+ dev_err(dev, "no LED channels\n");
+ return -EINVAL;
+ }
+
+ cfg = devm_kzalloc(dev, sizeof(*cfg) * num_channels, GFP_KERNEL);
+ if (!cfg)
+ return -ENOMEM;
+
+ pdata->led_config = &cfg[0];
+ pdata->num_channels = num_channels;
+
+ for_each_child_of_node(np, child) {
+ cfg[i].chan_nr = i;
+
+ of_property_read_string(child, "chan-name", &cfg[i].name);
+ of_property_read_u8(child, "led-cur", &cfg[i].led_current);
+ of_property_read_u8(child, "max-cur", &cfg[i].max_current);
+
+ i++;
+ }
+
+ of_property_read_string(np, "label", &pdata->label);
+ of_property_read_u8(np, "clock-mode", &pdata->clock_mode);
+
+ dev->platform_data = pdata;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(lp55xx_of_populate_pdata);
+
MODULE_AUTHOR("Milo Kim <milo.kim@ti.com>");
MODULE_DESCRIPTION("LP55xx Common Driver");
MODULE_LICENSE("GPL");