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Date: Tue, 26 Jan 2016 02:09:18 +0800
From: kbuild test robot <lkp@...el.com>
To: Dmitriy Baranov <dbaranov@....rtsoft.ru>
Cc: kbuild-all@...org, wsa@...-dreams.de, linux-i2c@...r.kernel.org,
linux-kernel@...r.kernel.org,
Dmitriy Baranov <dbaranov@....rtsoft.ru>,
Maxim Syrchin <syrchin@....rtsoft.ru>
Subject: Re: [PATCH] i2c: imx: add slave support
Hi Dmitriy,
[auto build test ERROR on wsa/i2c/for-next]
[also build test ERROR on v4.5-rc1 next-20160125]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]
url: https://github.com/0day-ci/linux/commits/Dmitriy-Baranov/i2c-imx-add-slave-support/20160125-225538
base: https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux i2c/for-next
config: arm-imx_v6_v7_defconfig (attached as .config)
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=arm
All error/warnings (new ones prefixed by >>):
drivers/i2c/busses/i2c-imx.c: In function 'i2c_imx_slave_threadfn':
>> drivers/i2c/busses/i2c-imx.c:696:6: error: implicit declaration of function 'i2c_slave_event' [-Werror=implicit-function-declaration]
i2c_slave_event(i2c_imx->slave,
^
>> drivers/i2c/busses/i2c-imx.c:697:7: error: 'I2C_SLAVE_READ_REQUESTED' undeclared (first use in this function)
I2C_SLAVE_READ_REQUESTED, &data);
^
drivers/i2c/busses/i2c-imx.c:697:7: note: each undeclared identifier is reported only once for each function it appears in
>> drivers/i2c/busses/i2c-imx.c:706:7: error: 'I2C_SLAVE_WRITE_REQUESTED' undeclared (first use in this function)
I2C_SLAVE_WRITE_REQUESTED, &data);
^
>> drivers/i2c/busses/i2c-imx.c:719:8: error: 'I2C_SLAVE_READ_PROCESSED' undeclared (first use in this function)
I2C_SLAVE_READ_PROCESSED, &data);
^
>> drivers/i2c/busses/i2c-imx.c:744:7: error: 'I2C_SLAVE_WRITE_RECEIVED' undeclared (first use in this function)
I2C_SLAVE_WRITE_RECEIVED, &data);
^
>> drivers/i2c/busses/i2c-imx.c:755:37: error: 'I2C_SLAVE_STOP' undeclared (first use in this function)
i2c_slave_event(i2c_imx->slave, I2C_SLAVE_STOP, &data);
^
drivers/i2c/busses/i2c-imx.c: At top level:
>> drivers/i2c/busses/i2c-imx.c:1283:2: error: unknown field 'reg_slave' specified in initializer
.reg_slave = i2c_imx_reg_slave,
^
>> drivers/i2c/busses/i2c-imx.c:1283:2: warning: excess elements in struct initializer
drivers/i2c/busses/i2c-imx.c:1283:2: warning: (near initialization for 'i2c_imx_algo')
>> drivers/i2c/busses/i2c-imx.c:1284:2: error: unknown field 'unreg_slave' specified in initializer
.unreg_slave = i2c_imx_unreg_slave,
^
drivers/i2c/busses/i2c-imx.c:1284:2: warning: excess elements in struct initializer
drivers/i2c/busses/i2c-imx.c:1284:2: warning: (near initialization for 'i2c_imx_algo')
cc1: some warnings being treated as errors
vim +/i2c_slave_event +696 drivers/i2c/busses/i2c-imx.c
690 status = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2SR);
691 ctl = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2CR);
692
693 if (status & I2SR_IAAS) {
694 if (status & I2SR_SRW) {
695 /* master wants to read from us */
> 696 i2c_slave_event(i2c_imx->slave,
> 697 I2C_SLAVE_READ_REQUESTED, &data);
698 ctl |= I2CR_MTX;
699 imx_i2c_write_reg(ctl, i2c_imx, IMX_I2C_I2CR);
700
701 /*send data */
702 imx_i2c_write_reg(data, i2c_imx, IMX_I2C_I2DR);
703 } else {
704 dev_dbg(&i2c_imx->adapter.dev, "write requested");
705 i2c_slave_event(i2c_imx->slave,
> 706 I2C_SLAVE_WRITE_REQUESTED, &data);
707 /*slave receive */
708 ctl &= ~I2CR_MTX;
709 imx_i2c_write_reg(ctl, i2c_imx, IMX_I2C_I2CR);
710
711 /*dummy read */
712 data = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2DR);
713 }
714 } else {
715 /* slave send */
716 if (ctl & I2CR_MTX) {
717 if (!(status & I2SR_RXAK)) { /*ACK received */
718 i2c_slave_event(i2c_imx->slave,
> 719 I2C_SLAVE_READ_PROCESSED, &data);
720 ctl |= I2CR_MTX;
721 imx_i2c_write_reg(ctl, i2c_imx, IMX_I2C_I2CR);
722 /*send data */
723 imx_i2c_write_reg(data, i2c_imx, IMX_I2C_I2DR);
724 } else {
725 /*no ACK. */
726 /*dummy read */
727 dev_dbg(&i2c_imx->adapter.dev, "read requested");
728 i2c_slave_event(i2c_imx->slave,
729 I2C_SLAVE_READ_REQUESTED, &data);
730
731 ctl &= ~I2CR_MTX;
732 imx_i2c_write_reg(ctl, i2c_imx, IMX_I2C_I2CR);
733 imx_i2c_read_reg(i2c_imx, IMX_I2C_I2DR);
734 }
735 } else { /*read */
736 ctl &= ~I2CR_MTX;
737 imx_i2c_write_reg(ctl, i2c_imx, IMX_I2C_I2CR);
738
739 /*read */
740 data = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2DR);
741 dev_dbg(&i2c_imx->adapter.dev, "received %x",
742 (unsigned int) data);
743 i2c_slave_event(i2c_imx->slave,
> 744 I2C_SLAVE_WRITE_RECEIVED, &data);
745 }
746 }
747 }
748
749 if (atomic_read(&i2c_imx->slave_state) == I2C_IMX_SLAVE_POLLING) {
750 udelay(50);
751 status = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2SR);
752
753 if ((status & I2SR_IBB) == 0) {
754 pr_debug("end of package");
> 755 i2c_slave_event(i2c_imx->slave, I2C_SLAVE_STOP, &data);
756 atomic_set(&i2c_imx->slave_state, I2C_IMX_SLAVE_IDLE);
757 timeout = HZ;
758 }
---
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