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ARM: davinci: mityomapl138: use nvmem notifiers 

Stop using the at24_platform_data setup callback in favor of nvmem
notifiers.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
This commit is contained in:
Bartosz Golaszewski 2019-01-08 10:15:37 +01:00 committed by Sekhar Nori
parent 19e99de9a5
commit 2f983f8c94
1 changed files with 15 additions and 3 deletions
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18
arch/arm/mach-davinci/board-mityomapl138.c
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@ -15,6 +15,8 @@
#include <linux/console.h>
#include <linux/platform_device.h>
#include <linux/mtd/partitions.h>
#include <linux/notifier.h>
#include <linux/nvmem-consumer.h>
#include <linux/nvmem-provider.h>
#include <linux/regulator/machine.h>
#include <linux/i2c.h>
@ -117,10 +119,15 @@ static void mityomapl138_cpufreq_init(const char *partnum)
static void mityomapl138_cpufreq_init(const char *partnum) { }
#endif
static void read_factory_config(struct nvmem_device *nvmem, void *context)
static int read_factory_config(struct notifier_block *nb,
unsigned long event, void *data)
{
int ret;
const char *partnum = NULL;
struct nvmem_device *nvmem = data;
if (strcmp(nvmem_dev_name(nvmem), "1-00500") != 0)
return NOTIFY_DONE;
if (!IS_BUILTIN(CONFIG_NVMEM)) {
pr_warn("Factory Config not available without CONFIG_NVMEM\n");
@ -152,8 +159,14 @@ static void read_factory_config(struct nvmem_device *nvmem, void *context)
bad_config:
/* default maximum speed is valid for all platforms */
mityomapl138_cpufreq_init(partnum);
return NOTIFY_STOP;
}
static struct notifier_block mityomapl138_nvmem_notifier = {
.notifier_call = read_factory_config,
};
/*
* We don't define a cell for factory config as it will be accessed from the
* board file using the nvmem notifier chain.
@ -183,8 +196,6 @@ static struct at24_platform_data mityomapl138_fd_chip = {
.byte_len = 256,
.page_size = 8,
.flags = AT24_FLAG_READONLY | AT24_FLAG_IRUGO,
.setup = read_factory_config,
.context = NULL,
};
static struct davinci_i2c_platform_data mityomap_i2c_0_pdata = {
@ -561,6 +572,7 @@ static void __init mityomapl138_init(void)
davinci_serial_init(da8xx_serial_device);
nvmem_register_notifier(&mityomapl138_nvmem_notifier);
nvmem_add_cell_table(&mityomapl138_nvmem_cell_table);
nvmem_add_cell_lookups(&mityomapl138_nvmem_cell_lookup, 1);