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SubjectRe: [PATCH v4 4/5] i2c: designware: Add slave mode as separated driver
Hi Luis,

[auto build test ERROR on wsa/i2c/for-next]
[also build test ERROR on next-20161209]
[cannot apply to v4.9-rc8]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Luis-Oliveira/i2c-designware-Refactoring-of-the-i2c-designware/20161208-044045
base: https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git i2c/for-next
config: i386-randconfig-c0-12110449 (attached as .config)
compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4
reproduce:
# save the attached .config to linux build tree
make ARCH=i386

All errors (new ones prefixed by >>):

drivers/i2c/busses/i2c-designware-slave.c: In function 'i2c_dw_irq_handler_slave':
>> drivers/i2c/busses/i2c-designware-slave.c:294:3: error: implicit declaration of function 'i2c_slave_event' [-Werror=implicit-function-declaration]
i2c_slave_event(dev->slave, I2C_SLAVE_WRITE_REQUESTED, &val);
^
>> drivers/i2c/busses/i2c-designware-slave.c:294:31: error: 'I2C_SLAVE_WRITE_REQUESTED' undeclared (first use in this function)
i2c_slave_event(dev->slave, I2C_SLAVE_WRITE_REQUESTED, &val);
^
drivers/i2c/busses/i2c-designware-slave.c:294:31: note: each undeclared identifier is reported only once for each function it appears in
In file included from include/linux/err.h:4:0,
from drivers/i2c/busses/i2c-designware-slave.c:26:
>> drivers/i2c/busses/i2c-designware-slave.c:301:6: error: 'I2C_SLAVE_WRITE_RECEIVED' undeclared (first use in this function)
I2C_SLAVE_WRITE_RECEIVED, &val)) {
^
include/linux/compiler.h:149:30: note: in definition of macro '__trace_if'
if (__builtin_constant_p(!!(cond)) ? !!(cond) : \
^
drivers/i2c/busses/i2c-designware-slave.c:300:5: note: in expansion of macro 'if'
if (!i2c_slave_event(dev->slave,
^
>> drivers/i2c/busses/i2c-designware-slave.c:313:7: error: 'I2C_SLAVE_READ_REQUESTED' undeclared (first use in this function)
I2C_SLAVE_READ_REQUESTED, &val))
^
include/linux/compiler.h:149:30: note: in definition of macro '__trace_if'
if (__builtin_constant_p(!!(cond)) ? !!(cond) : \
^
drivers/i2c/busses/i2c-designware-slave.c:312:4: note: in expansion of macro 'if'
if (!i2c_slave_event(dev->slave,
^
>> drivers/i2c/busses/i2c-designware-slave.c:319:36: error: 'I2C_SLAVE_READ_PROCESSED' undeclared (first use in this function)
if (!i2c_slave_event(dev->slave, I2C_SLAVE_READ_PROCESSED,
^
include/linux/compiler.h:149:30: note: in definition of macro '__trace_if'
if (__builtin_constant_p(!!(cond)) ? !!(cond) : \
^
drivers/i2c/busses/i2c-designware-slave.c:319:3: note: in expansion of macro 'if'
if (!i2c_slave_event(dev->slave, I2C_SLAVE_READ_PROCESSED,
^
>> drivers/i2c/busses/i2c-designware-slave.c:323:31: error: 'I2C_SLAVE_STOP' undeclared (first use in this function)
i2c_slave_event(dev->slave, I2C_SLAVE_STOP, &val);
^
drivers/i2c/busses/i2c-designware-slave.c: At top level:
>> drivers/i2c/busses/i2c-designware-slave.c:358:2: error: unknown field 'reg_slave' specified in initializer
.reg_slave = i2c_dw_reg_slave,
^
drivers/i2c/busses/i2c-designware-slave.c:358:2: warning: excess elements in struct initializer
drivers/i2c/busses/i2c-designware-slave.c:358:2: warning: (near initialization for 'i2c_dw_algo')
>> drivers/i2c/busses/i2c-designware-slave.c:359:2: error: unknown field 'unreg_slave' specified in initializer
.unreg_slave = i2c_dw_unreg_slave,
^
drivers/i2c/busses/i2c-designware-slave.c:359:2: warning: excess elements in struct initializer
drivers/i2c/busses/i2c-designware-slave.c:359:2: warning: (near initialization for 'i2c_dw_algo')
cc1: some warnings being treated as errors

vim +/i2c_slave_event +294 drivers/i2c/busses/i2c-designware-slave.c

288 dw_readl(dev, DW_IC_CLR_START_DET);
289 if (stat & DW_IC_INTR_ACTIVITY)
290 dw_readl(dev, DW_IC_CLR_ACTIVITY);
291 if (stat & DW_IC_INTR_RX_OVER)
292 dw_readl(dev, DW_IC_CLR_RX_OVER);
293 if ((stat & DW_IC_INTR_RX_FULL) && (stat & DW_IC_INTR_STOP_DET))
> 294 i2c_slave_event(dev->slave, I2C_SLAVE_WRITE_REQUESTED, &val);
295
296 if (slave_activity) {
297 if (stat & DW_IC_INTR_RD_REQ) {
298 if (stat & DW_IC_INTR_RX_FULL) {
299 val = dw_readl(dev, DW_IC_DATA_CMD);
300 if (!i2c_slave_event(dev->slave,
> 301 I2C_SLAVE_WRITE_RECEIVED, &val)) {
302 dev_dbg(dev->dev, "Byte %X acked!",
303 val);
304 }
305 dw_readl(dev, DW_IC_CLR_RD_REQ);
306 stat = i2c_dw_read_clear_intrbits_slave(dev);
307 } else {
308 dw_readl(dev, DW_IC_CLR_RD_REQ);
309 dw_readl(dev, DW_IC_CLR_RX_UNDER);
310 stat = i2c_dw_read_clear_intrbits_slave(dev);
311 }
312 if (!i2c_slave_event(dev->slave,
> 313 I2C_SLAVE_READ_REQUESTED, &val))
314 dw_writel(dev, val, DW_IC_DATA_CMD);
315 }
316 }
317
318 if (stat & DW_IC_INTR_RX_DONE) {
> 319 if (!i2c_slave_event(dev->slave, I2C_SLAVE_READ_PROCESSED,
320 &val))
321 dw_readl(dev, DW_IC_CLR_RX_DONE);
322
> 323 i2c_slave_event(dev->slave, I2C_SLAVE_STOP, &val);
324 stat = i2c_dw_read_clear_intrbits_slave(dev);
325 return true;
326 }
327
328 if (stat & DW_IC_INTR_RX_FULL) {
329 val = dw_readl(dev, DW_IC_DATA_CMD);
330 if (!i2c_slave_event(dev->slave, I2C_SLAVE_WRITE_RECEIVED,
331 &val))
332 dev_dbg(dev->dev, "Byte %X acked!", val);
333 } else {
334 i2c_slave_event(dev->slave, I2C_SLAVE_STOP, &val);
335 stat = i2c_dw_read_clear_intrbits_slave(dev);
336 }
337
338 if (stat & DW_IC_INTR_TX_OVER)
339 dw_readl(dev, DW_IC_CLR_TX_OVER);
340
341 return true;
342 }
343
344 static irqreturn_t i2c_dw_isr_slave(int this_irq, void *dev_id)
345 {
346 struct dw_i2c_dev *dev = dev_id;
347
348 i2c_dw_read_clear_intrbits_slave(dev);
349 if (!i2c_dw_irq_handler_slave(dev))
350 return IRQ_NONE;
351
352 complete(&dev->cmd_complete);
353 return IRQ_HANDLED;
354 }
355
356 static struct i2c_algorithm i2c_dw_algo = {
357 .functionality = i2c_dw_func,
> 358 .reg_slave = i2c_dw_reg_slave,
> 359 .unreg_slave = i2c_dw_unreg_slave,
360 };
361
362 void i2c_dw_disable_slave(struct dw_i2c_dev *dev)

---
0-DAY kernel test infrastructure Open Source Technology Center
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