Hi Jean,
FYI, kernel build failed on (and also in upstream)
tree: git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging.git i2c-for-linus
head: c415b303a704e5c5f766fc0404093910c36cc4ab
commit: 3ad7ea18ae8c7ddda46b7276e0bda73e707ea9c1 [9/15] i2c-i801: Support SMBus multiplexing on Asus Z8 series
config: parisc-allyesconfig # make ARCH=parisc allyesconfig
All error/warnings:
drivers/leds/leds-pca9532.c:46:19: error: field 'gpio' has incomplete type
drivers/leds/leds-pca9532.c: In function 'pca9532_gpio_request_pin':
drivers/leds/leds-pca9532.c:248:30: warning: initialization from incompatible pointer type [enabled by default]
drivers/leds/leds-pca9532.c:248:30: warning: (near initialization for 'data') [enabled by default]
drivers/leds/leds-pca9532.c: In function 'pca9532_gpio_set_value':
drivers/leds/leds-pca9532.c:259:30: warning: initialization from incompatible pointer type [enabled by default]
drivers/leds/leds-pca9532.c:259:30: warning: (near initialization for 'data') [enabled by default]
drivers/leds/leds-pca9532.c: In function 'pca9532_gpio_get_value':
drivers/leds/leds-pca9532.c:272:30: warning: initialization from incompatible pointer type [enabled by default]
drivers/leds/leds-pca9532.c:272:30: warning: (near initialization for 'data') [enabled by default]
drivers/leds/leds-pca9532.c: In function 'pca9532_destroy_devices':
drivers/leds/leds-pca9532.c:324:3: error: implicit declaration of function 'gpiochip_remove' [-Werror=implicit-function-declaration]
drivers/leds/leds-pca9532.c: In function 'pca9532_configure':
drivers/leds/leds-pca9532.c:427:3: error: implicit declaration of function 'gpiochip_add' [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
vim +46 drivers/leds/leds-pca9532.c
3dbf622c Jan Weitzel 2011-05-24 30 #define LED_REG(m, led) (PCA9532_REG_OFFSET(m) + 0x5 + (led >> 2))
3dbf622c Jan Weitzel 2011-05-24 31 #define LED_NUM(led) (led & 0x3)
e14fa824 Riku Voipio 2008-05-31 32
e14fa824 Riku Voipio 2008-05-31 33 #define ldev_to_led(c) container_of(c, struct pca9532_led, ldev)
e14fa824 Riku Voipio 2008-05-31 34
3dbf622c Jan Weitzel 2011-05-24 35 struct pca9532_chip_info {
3dbf622c Jan Weitzel 2011-05-24 36 u8 num_leds;
3dbf622c Jan Weitzel 2011-05-24 37 };
3dbf622c Jan Weitzel 2011-05-24 38
e14fa824 Riku Voipio 2008-05-31 39 struct pca9532_data {
e14fa824 Riku Voipio 2008-05-31 40 struct i2c_client *client;
e14fa824 Riku Voipio 2008-05-31 41 struct pca9532_led leds[16];
e14fa824 Riku Voipio 2008-05-31 42 struct mutex update_lock;
85c5204a Richard Purdie 2009-09-07 43 struct input_dev *idev;
07172d2b Antonio Ospite 2009-06-19 44 struct work_struct work;
3c1ab50d Joachim Eastwood 2011-05-24 45 #ifdef CONFIG_LEDS_PCA9532_GPIO
3c1ab50d Joachim Eastwood 2011-05-24 @46 struct gpio_chip gpio;
3c1ab50d Joachim Eastwood 2011-05-24 47 #endif
3dbf622c Jan Weitzel 2011-05-24 48 const struct pca9532_chip_info *chip_info;
e14fa824 Riku Voipio 2008-05-31 49 u8 pwm[2];
e14fa824 Riku Voipio 2008-05-31 50 u8 psc[2];
e14fa824 Riku Voipio 2008-05-31 51 };
e14fa824 Riku Voipio 2008-05-31 52
e14fa824 Riku Voipio 2008-05-31 53 static int pca9532_probe(struct i2c_client *client,
e14fa824 Riku Voipio 2008-05-31 54 const struct i2c_device_id *id);
The code at line 46 was first introduced by commit:
3c1ab50 drivers/leds/leds-pca9532.c: add gpio capability
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0-DAY kernel build testing backend Open Source Technology Center
Fengguang Wu, Yuanhan Liu Intel Corporation
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