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| author | Alexandre Courbot <acourbot@nvidia.com> | 2013-02-03 01:29:30 +0900 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2013-02-11 22:21:28 +0000 |
| commit | 6c0b4e6c85d085bd92966bc2b8da73e2d7f35929 (patch) | |
| tree | c04b9c20083445195cade9fbcd11265632585525 /include/asm-generic | |
| parent | 372e722ea4dd4ca11c3d04845e11cbc15f32144c (diff) | |
| download | linux-6c0b4e6c85d085bd92966bc2b8da73e2d7f35929.tar.gz linux-6c0b4e6c85d085bd92966bc2b8da73e2d7f35929.tar.bz2 linux-6c0b4e6c85d085bd92966bc2b8da73e2d7f35929.zip | |
gpiolib: let gpio_chip reference its descriptors
Add a pointer to the gpio_chip structure that references the array of
GPIO descriptors belonging to the chip, and update gpiolib code to use
this pointer instead of the global gpio_desc[] array. This is another
step towards the removal of the gpio_desc[] global array.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.orh>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'include/asm-generic')
| -rw-r--r-- | include/asm-generic/gpio.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h index b562f95cdc2f..bde646995d10 100644 --- a/include/asm-generic/gpio.h +++ b/include/asm-generic/gpio.h @@ -47,6 +47,7 @@ struct gpio; struct seq_file; struct module; struct device_node; +struct gpio_desc; /** * struct gpio_chip - abstract a GPIO controller @@ -76,6 +77,7 @@ struct device_node; * negative during registration, requests dynamic ID allocation. * @ngpio: the number of GPIOs handled by this controller; the last GPIO * handled is (base + ngpio - 1). + * @desc: array of ngpio descriptors. Private. * @can_sleep: flag must be set iff get()/set() methods sleep, as they * must while accessing GPIO expander chips over I2C or SPI * @names: if set, must be an array of strings to use as alternative @@ -126,6 +128,7 @@ struct gpio_chip { struct gpio_chip *chip); int base; u16 ngpio; + struct gpio_desc *desc; const char *const *names; unsigned can_sleep:1; unsigned exported:1; |