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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2024-05-08 20:46:57 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-06-04 17:47:08 +0200 |
| commit | 3aee48a8e01f98d3285a0064285b0152cdbb8a9e (patch) | |
| tree | 6c2322470a96557fc19ea6525e948ddfe18bfb0b /drivers/misc | |
| parent | eeprom: digsy_mtc: Convert to use GPIO descriptors (diff) | |
| download | linux-3aee48a8e01f98d3285a0064285b0152cdbb8a9e.tar.xz linux-3aee48a8e01f98d3285a0064285b0152cdbb8a9e.zip | |
misc: eeprom_93xx46: Hide legacy platform data in the driver
First of all, there is no user for the platform data in the kernel.
Second, it needs a lot of updates to follow the modern standards
of the kernel, including proper Device Tree bindings and device
property handling.
For now, just hide the legacy platform data in the driver's code.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240508184905.2102633-5-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/eeprom/eeprom_93xx46.c | 35 |
1 files changed, 29 insertions, 6 deletions
diff --git a/drivers/misc/eeprom/eeprom_93xx46.c b/drivers/misc/eeprom/eeprom_93xx46.c index bbcc9412bb4e..a5a043ddedbb 100644 --- a/drivers/misc/eeprom/eeprom_93xx46.c +++ b/drivers/misc/eeprom/eeprom_93xx46.c @@ -5,6 +5,7 @@ * (C) 2011 DENX Software Engineering, Anatolij Gustschin <agust@denx.de> */ +#include <linux/bits.h> #include <linux/delay.h> #include <linux/device.h> #include <linux/gpio/consumer.h> @@ -19,7 +20,31 @@ #include <linux/nvmem-provider.h> -#include <linux/eeprom_93xx46.h> +struct eeprom_93xx46_platform_data { + unsigned char flags; +#define EE_ADDR8 0x01 /* 8 bit addr. cfg */ +#define EE_ADDR16 0x02 /* 16 bit addr. cfg */ +#define EE_READONLY 0x08 /* forbid writing */ +#define EE_SIZE1K 0x10 /* 1 kb of data, that is a 93xx46 */ +#define EE_SIZE2K 0x20 /* 2 kb of data, that is a 93xx56 */ +#define EE_SIZE4K 0x40 /* 4 kb of data, that is a 93xx66 */ + + unsigned int quirks; +/* Single word read transfers only; no sequential read. */ +#define EEPROM_93XX46_QUIRK_SINGLE_WORD_READ (1 << 0) +/* Instructions such as EWEN are (addrlen + 2) in length. */ +#define EEPROM_93XX46_QUIRK_INSTRUCTION_LENGTH (1 << 1) +/* Add extra cycle after address during a read */ +#define EEPROM_93XX46_QUIRK_EXTRA_READ_CYCLE BIT(2) + + /* + * optional hooks to control additional logic + * before and after spi transfer. + */ + void (*prepare)(void *); + void (*finish)(void *); + struct gpio_desc *select; +}; #define OP_START 0x4 #define OP_WRITE (OP_START | 0x1) @@ -479,11 +504,9 @@ static int eeprom_93xx46_probe(struct spi_device *spi) struct device *dev = &spi->dev; int err; - if (dev_fwnode(dev)) { - err = eeprom_93xx46_probe_fw(dev); - if (err < 0) - return err; - } + err = eeprom_93xx46_probe_fw(dev); + if (err < 0) + return err; pd = spi->dev.platform_data; if (!pd) { |