Re: [PATCH v11 5/6] i2c: designware: add SLAVE mode functions

From: kbuild test robot
Date: Sun Jun 18 2017 - 00:53:40 EST


Hi Luis,

[auto build test ERROR on wsa/i2c/for-next]
[also build test ERROR on v4.12-rc5 next-20170616]
[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-add-I2C-SLAVE-support/20170615-014456
base: https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git i2c/for-next
config: x86_64-randconfig-a0-06181216 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64

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:285:3: 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:285:31: 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:285:31: note: each undeclared identifier is reported only once for each function it appears in
>> drivers/i2c/busses/i2c-designware-slave.c:293:12: error: 'I2C_SLAVE_WRITE_RECEIVED' undeclared (first use in this function)
I2C_SLAVE_WRITE_RECEIVED,
^~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/i2c/busses/i2c-designware-slave.c:306:11: error: 'I2C_SLAVE_READ_REQUESTED' undeclared (first use in this function)
I2C_SLAVE_READ_REQUESTED,
^~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/i2c/busses/i2c-designware-slave.c:313:36: error: 'I2C_SLAVE_READ_PROCESSED' undeclared (first use in this function)
if (!i2c_slave_event(dev->slave, I2C_SLAVE_READ_PROCESSED,
^~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/i2c/busses/i2c-designware-slave.c:317:31: 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:353:2: error: unknown field 'reg_slave' specified in initializer
.reg_slave = i2c_dw_reg_slave,
^
drivers/i2c/busses/i2c-designware-slave.c:353:15: warning: excess elements in struct initializer
.reg_slave = i2c_dw_reg_slave,
^~~~~~~~~~~~~~~~
drivers/i2c/busses/i2c-designware-slave.c:353:15: note: (near initialization for 'i2c_dw_algo')
>> drivers/i2c/busses/i2c-designware-slave.c:354:2: error: unknown field 'unreg_slave' specified in initializer
.unreg_slave = i2c_dw_unreg_slave,
^
drivers/i2c/busses/i2c-designware-slave.c:354:17: warning: excess elements in struct initializer
.unreg_slave = i2c_dw_unreg_slave,
^~~~~~~~~~~~~~~~~~
drivers/i2c/busses/i2c-designware-slave.c:354:17: note: (near initialization for 'i2c_dw_algo')
cc1: some warnings being treated as errors

vim +/i2c_slave_event +285 drivers/i2c/busses/i2c-designware-slave.c

279 dev_dbg(dev->dev,
280 "%#x STAUTS SLAVE_ACTTVITY=%#x : RAW_INTR_STAT=%#x"
281 " : INTR_STAT=%#x\n",
282 enabled, slave_activity, raw_stat, stat);
283
284 if ((stat & DW_IC_INTR_RX_FULL) && (stat & DW_IC_INTR_STOP_DET))
> 285 i2c_slave_event(dev->slave, I2C_SLAVE_WRITE_REQUESTED, &val);
286
287 if (stat & DW_IC_INTR_RD_REQ) {
288 if (slave_activity) {
289 if (stat & DW_IC_INTR_RX_FULL) {
290 val = dw_readl(dev, DW_IC_DATA_CMD);
291
292 if (!i2c_slave_event(dev->slave,
> 293 I2C_SLAVE_WRITE_RECEIVED,
294 &val)) {
295 dev_vdbg(dev->dev, "Byte %X acked!",
296 val);
297 }
298 dw_readl(dev, DW_IC_CLR_RD_REQ);
299 stat = i2c_dw_read_clear_intrbits_slave(dev);
300 } else {
301 dw_readl(dev, DW_IC_CLR_RD_REQ);
302 dw_readl(dev, DW_IC_CLR_RX_UNDER);
303 stat = i2c_dw_read_clear_intrbits_slave(dev);
304 }
305 if (!i2c_slave_event(dev->slave,
> 306 I2C_SLAVE_READ_REQUESTED,
307 &val))
308 dw_writel(dev, val, DW_IC_DATA_CMD);
309 }
310 }
311
312 if (stat & DW_IC_INTR_RX_DONE) {
> 313 if (!i2c_slave_event(dev->slave, I2C_SLAVE_READ_PROCESSED,
314 &val))
315 dw_readl(dev, DW_IC_CLR_RX_DONE);
316
> 317 i2c_slave_event(dev->slave, I2C_SLAVE_STOP, &val);
318 stat = i2c_dw_read_clear_intrbits_slave(dev);
319 return 1;
320 }
321
322 if (stat & DW_IC_INTR_RX_FULL) {
323 val = dw_readl(dev, DW_IC_DATA_CMD);
324 if (!i2c_slave_event(dev->slave, I2C_SLAVE_WRITE_RECEIVED,
325 &val))
326 dev_vdbg(dev->dev, "Byte %X acked!", val);
327 } else {
328 i2c_slave_event(dev->slave, I2C_SLAVE_STOP, &val);
329 stat = i2c_dw_read_clear_intrbits_slave(dev);
330 }
331
332 //~ if (stat & DW_IC_INTR_TX_OVER)
333 //~ dw_readl(dev, DW_IC_CLR_TX_OVER);
334
335 return 1;
336 }
337
338 static irqreturn_t i2c_dw_isr_slave(int this_irq, void *dev_id)
339 {
340 struct dw_i2c_dev *dev = dev_id;
341 int ret;
342
343 i2c_dw_read_clear_intrbits_slave(dev);
344 ret = i2c_dw_irq_handler_slave(dev);
345 if (ret > 0)
346 complete(&dev->cmd_complete);
347
348 return IRQ_RETVAL(ret);
349 }
350
351 static struct i2c_algorithm i2c_dw_algo = {
352 .functionality = i2c_dw_func,
> 353 .reg_slave = i2c_dw_reg_slave,
> 354 .unreg_slave = i2c_dw_unreg_slave,
355 };
356
357 int i2c_dw_probe_slave(struct dw_i2c_dev *dev)

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