* Re: [PATCH v1 1/1] i2c: busses: Use *-y instead of *-objs in Makefile
2024-11-01 13:11 [PATCH v1 1/1] i2c: busses: Use *-y instead of *-objs in Makefile Andy Shevchenko
@ 2024-11-01 23:30 ` kernel test robot
2024-11-01 23:51 ` kernel test robot
1 sibling, 0 replies; 3+ messages in thread
From: kernel test robot @ 2024-11-01 23:30 UTC (permalink / raw)
To: Andy Shevchenko, Andi Shyti, linux-i2c, linux-kernel
Cc: llvm, oe-kbuild-all, Wolfram Sang, Andy Shevchenko
Hi Andy,
kernel test robot noticed the following build errors:
[auto build test ERROR on andi-shyti/i2c/i2c-host]
[also build test ERROR on linus/master v6.12-rc5 next-20241101]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Andy-Shevchenko/i2c-busses-Use-y-instead-of-objs-in-Makefile/20241101-211148
base: https://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux.git i2c/i2c-host
patch link: https://lore.kernel.org/r/20241101131103.3679560-1-andriy.shevchenko%40linux.intel.com
patch subject: [PATCH v1 1/1] i2c: busses: Use *-y instead of *-objs in Makefile
config: arm-randconfig-001-20241102 (https://download.01.org/0day-ci/archive/20241102/202411020714.mhatOhhd-lkp@intel.com/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 639a7ac648f1e50ccd2556e17d401c04f9cce625)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241102/202411020714.mhatOhhd-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202411020714.mhatOhhd-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from drivers/i2c/busses/i2c-at91-slave.c:9:
In file included from include/linux/i2c.h:19:
In file included from include/linux/regulator/consumer.h:35:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:21:
In file included from include/linux/mm.h:2213:
include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
518 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
>> drivers/i2c/busses/i2c-at91-slave.c:28:25: error: no member named 'slave' in 'struct at91_twi_dev'
28 | i2c_slave_event(dev->slave,
| ~~~ ^
drivers/i2c/busses/i2c-at91-slave.c:34:25: error: no member named 'slave' in 'struct at91_twi_dev'
34 | i2c_slave_event(dev->slave,
| ~~~ ^
drivers/i2c/busses/i2c-at91-slave.c:44:24: error: no member named 'slave' in 'struct at91_twi_dev'
44 | i2c_slave_event(dev->slave, I2C_SLAVE_READ_PROCESSED, &value);
| ~~~ ^
drivers/i2c/busses/i2c-at91-slave.c:51:24: error: no member named 'slave' in 'struct at91_twi_dev'
51 | i2c_slave_event(dev->slave, I2C_SLAVE_WRITE_RECEIVED, &value);
| ~~~ ^
drivers/i2c/busses/i2c-at91-slave.c:59:24: error: no member named 'slave' in 'struct at91_twi_dev'
59 | i2c_slave_event(dev->slave, I2C_SLAVE_STOP, &value);
| ~~~ ^
drivers/i2c/busses/i2c-at91-slave.c:69:11: error: no member named 'slave' in 'struct at91_twi_dev'
69 | if (dev->slave)
| ~~~ ^
drivers/i2c/busses/i2c-at91-slave.c:78:7: error: no member named 'slave' in 'struct at91_twi_dev'
78 | dev->slave = slave;
| ~~~ ^
>> drivers/i2c/busses/i2c-at91-slave.c:79:7: error: no member named 'smr' in 'struct at91_twi_dev'; did you mean 'imr'?
79 | dev->smr = AT91_TWI_SMR_SADR(slave->addr);
| ^~~
| imr
drivers/i2c/busses/i2c-at91.h:146:11: note: 'imr' declared here
146 | unsigned imr;
| ^
drivers/i2c/busses/i2c-at91-slave.c:93:16: error: no member named 'slave' in 'struct at91_twi_dev'
93 | WARN_ON(!dev->slave);
| ~~~ ^
include/asm-generic/bug.h:123:25: note: expanded from macro 'WARN_ON'
123 | int __ret_warn_on = !!(condition); \
| ^~~~~~~~~
drivers/i2c/busses/i2c-at91-slave.c:97:7: error: no member named 'slave' in 'struct at91_twi_dev'
97 | dev->slave = NULL;
| ~~~ ^
drivers/i2c/busses/i2c-at91-slave.c:98:7: error: no member named 'smr' in 'struct at91_twi_dev'; did you mean 'imr'?
98 | dev->smr = 0;
| ^~~
| imr
drivers/i2c/busses/i2c-at91.h:146:11: note: 'imr' declared here
146 | unsigned imr;
| ^
drivers/i2c/busses/i2c-at91-slave.c:118:5: error: redefinition of 'at91_twi_probe_slave'
118 | int at91_twi_probe_slave(struct platform_device *pdev,
| ^
drivers/i2c/busses/i2c-at91.h:185:19: note: previous definition is here
185 | static inline int at91_twi_probe_slave(struct platform_device *pdev,
| ^
drivers/i2c/busses/i2c-at91-slave.c:135:6: error: redefinition of 'at91_init_twi_bus_slave'
135 | void at91_init_twi_bus_slave(struct at91_twi_dev *dev)
| ^
drivers/i2c/busses/i2c-at91.h:184:20: note: previous definition is here
184 | static inline void at91_init_twi_bus_slave(struct at91_twi_dev *dev) {}
| ^
drivers/i2c/busses/i2c-at91-slave.c:138:34: error: no member named 'smr' in 'struct at91_twi_dev'; did you mean 'imr'?
138 | if (dev->slave_detected && dev->smr) {
| ^~~
| imr
drivers/i2c/busses/i2c-at91.h:146:11: note: 'imr' declared here
146 | unsigned imr;
| ^
drivers/i2c/busses/i2c-at91-slave.c:139:42: error: no member named 'smr' in 'struct at91_twi_dev'; did you mean 'imr'?
139 | at91_twi_write(dev, AT91_TWI_SMR, dev->smr);
| ^~~
| imr
drivers/i2c/busses/i2c-at91.h:146:11: note: 'imr' declared here
146 | unsigned imr;
| ^
1 warning and 15 errors generated.
Kconfig warnings: (for reference only)
WARNING: unmet direct dependencies detected for FB_IOMEM_HELPERS
Depends on [n]: HAS_IOMEM [=y] && FB_CORE [=n]
Selected by [m]:
- DRM_XE_DISPLAY [=y] && HAS_IOMEM [=y] && DRM [=m] && DRM_XE [=m] && DRM_XE [=m]=m [=m]
vim +28 drivers/i2c/busses/i2c-at91-slave.c
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 14
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 15 static irqreturn_t atmel_twi_interrupt_slave(int irq, void *dev_id)
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 16 {
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 17 struct at91_twi_dev *dev = dev_id;
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 18 const unsigned status = at91_twi_read(dev, AT91_TWI_SR);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 19 const unsigned irqstatus = status & at91_twi_read(dev, AT91_TWI_IMR);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 20 u8 value;
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 21
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 22 if (!irqstatus)
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 23 return IRQ_NONE;
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 24
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 25 /* slave address has been detected on I2C bus */
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 26 if (irqstatus & AT91_TWI_SVACC) {
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 27 if (status & AT91_TWI_SVREAD) {
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 @28 i2c_slave_event(dev->slave,
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 29 I2C_SLAVE_READ_REQUESTED, &value);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 30 writeb_relaxed(value, dev->base + AT91_TWI_THR);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 31 at91_twi_write(dev, AT91_TWI_IER,
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 32 AT91_TWI_TXRDY | AT91_TWI_EOSACC);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 33 } else {
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 34 i2c_slave_event(dev->slave,
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 35 I2C_SLAVE_WRITE_REQUESTED, &value);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 36 at91_twi_write(dev, AT91_TWI_IER,
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 37 AT91_TWI_RXRDY | AT91_TWI_EOSACC);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 38 }
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 39 at91_twi_write(dev, AT91_TWI_IDR, AT91_TWI_SVACC);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 40 }
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 41
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 42 /* byte transmitted to remote master */
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 43 if (irqstatus & AT91_TWI_TXRDY) {
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 44 i2c_slave_event(dev->slave, I2C_SLAVE_READ_PROCESSED, &value);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 45 writeb_relaxed(value, dev->base + AT91_TWI_THR);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 46 }
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 47
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 48 /* byte received from remote master */
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 49 if (irqstatus & AT91_TWI_RXRDY) {
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 50 value = readb_relaxed(dev->base + AT91_TWI_RHR);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 51 i2c_slave_event(dev->slave, I2C_SLAVE_WRITE_RECEIVED, &value);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 52 }
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 53
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 54 /* master sent stop */
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 55 if (irqstatus & AT91_TWI_EOSACC) {
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 56 at91_twi_write(dev, AT91_TWI_IDR,
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 57 AT91_TWI_TXRDY | AT91_TWI_RXRDY | AT91_TWI_EOSACC);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 58 at91_twi_write(dev, AT91_TWI_IER, AT91_TWI_SVACC);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 @59 i2c_slave_event(dev->slave, I2C_SLAVE_STOP, &value);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 60 }
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 61
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 62 return IRQ_HANDLED;
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 63 }
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 64
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 65 static int at91_reg_slave(struct i2c_client *slave)
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 66 {
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 67 struct at91_twi_dev *dev = i2c_get_adapdata(slave->adapter);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 68
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 69 if (dev->slave)
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 70 return -EBUSY;
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 71
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 72 if (slave->flags & I2C_CLIENT_TEN)
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 73 return -EAFNOSUPPORT;
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 74
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 75 /* Make sure twi_clk doesn't get turned off! */
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 76 pm_runtime_get_sync(dev->dev);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 77
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 78 dev->slave = slave;
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 @79 dev->smr = AT91_TWI_SMR_SADR(slave->addr);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 80
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 81 at91_init_twi_bus(dev);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 82 at91_twi_write(dev, AT91_TWI_IER, AT91_TWI_SVACC);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 83
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 84 dev_info(dev->dev, "entered slave mode (ADR=%d)\n", slave->addr);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 85
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 86 return 0;
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 87 }
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 88
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH v1 1/1] i2c: busses: Use *-y instead of *-objs in Makefile
2024-11-01 13:11 [PATCH v1 1/1] i2c: busses: Use *-y instead of *-objs in Makefile Andy Shevchenko
2024-11-01 23:30 ` kernel test robot
@ 2024-11-01 23:51 ` kernel test robot
1 sibling, 0 replies; 3+ messages in thread
From: kernel test robot @ 2024-11-01 23:51 UTC (permalink / raw)
To: Andy Shevchenko, Andi Shyti, linux-i2c, linux-kernel
Cc: oe-kbuild-all, Wolfram Sang, Andy Shevchenko
Hi Andy,
kernel test robot noticed the following build errors:
[auto build test ERROR on andi-shyti/i2c/i2c-host]
[also build test ERROR on linus/master v6.12-rc5 next-20241101]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Andy-Shevchenko/i2c-busses-Use-y-instead-of-objs-in-Makefile/20241101-211148
base: https://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux.git i2c/i2c-host
patch link: https://lore.kernel.org/r/20241101131103.3679560-1-andriy.shevchenko%40linux.intel.com
patch subject: [PATCH v1 1/1] i2c: busses: Use *-y instead of *-objs in Makefile
config: m68k-allmodconfig (https://download.01.org/0day-ci/archive/20241102/202411020703.U4QYsqjF-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 14.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241102/202411020703.U4QYsqjF-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202411020703.U4QYsqjF-lkp@intel.com/
All errors (new ones prefixed by >>):
drivers/i2c/busses/i2c-at91-slave.c: In function 'atmel_twi_interrupt_slave':
>> drivers/i2c/busses/i2c-at91-slave.c:28:44: error: 'struct at91_twi_dev' has no member named 'slave'
28 | i2c_slave_event(dev->slave,
| ^~
drivers/i2c/busses/i2c-at91-slave.c:34:44: error: 'struct at91_twi_dev' has no member named 'slave'
34 | i2c_slave_event(dev->slave,
| ^~
drivers/i2c/busses/i2c-at91-slave.c:44:36: error: 'struct at91_twi_dev' has no member named 'slave'
44 | i2c_slave_event(dev->slave, I2C_SLAVE_READ_PROCESSED, &value);
| ^~
drivers/i2c/busses/i2c-at91-slave.c:51:36: error: 'struct at91_twi_dev' has no member named 'slave'
51 | i2c_slave_event(dev->slave, I2C_SLAVE_WRITE_RECEIVED, &value);
| ^~
drivers/i2c/busses/i2c-at91-slave.c:59:36: error: 'struct at91_twi_dev' has no member named 'slave'
59 | i2c_slave_event(dev->slave, I2C_SLAVE_STOP, &value);
| ^~
drivers/i2c/busses/i2c-at91-slave.c: In function 'at91_reg_slave':
drivers/i2c/busses/i2c-at91-slave.c:69:16: error: 'struct at91_twi_dev' has no member named 'slave'
69 | if (dev->slave)
| ^~
drivers/i2c/busses/i2c-at91-slave.c:78:12: error: 'struct at91_twi_dev' has no member named 'slave'
78 | dev->slave = slave;
| ^~
>> drivers/i2c/busses/i2c-at91-slave.c:79:14: error: 'struct at91_twi_dev' has no member named 'smr'; did you mean 'imr'?
79 | dev->smr = AT91_TWI_SMR_SADR(slave->addr);
| ^~~
| imr
In file included from arch/m68k/include/asm/bug.h:32,
from include/linux/bug.h:5,
from include/linux/thread_info.h:13,
from include/asm-generic/preempt.h:5,
from ./arch/m68k/include/generated/asm/preempt.h:1,
from include/linux/preempt.h:79,
from include/linux/spinlock.h:56,
from include/linux/mmzone.h:8,
from include/linux/gfp.h:7,
from include/linux/slab.h:16,
from include/linux/resource_ext.h:11,
from include/linux/acpi.h:13,
from include/linux/i2c.h:13,
from drivers/i2c/busses/i2c-at91-slave.c:9:
drivers/i2c/busses/i2c-at91-slave.c: In function 'at91_unreg_slave':
drivers/i2c/busses/i2c-at91-slave.c:93:21: error: 'struct at91_twi_dev' has no member named 'slave'
93 | WARN_ON(!dev->slave);
| ^~
include/asm-generic/bug.h:123:32: note: in definition of macro 'WARN_ON'
123 | int __ret_warn_on = !!(condition); \
| ^~~~~~~~~
drivers/i2c/busses/i2c-at91-slave.c:97:12: error: 'struct at91_twi_dev' has no member named 'slave'
97 | dev->slave = NULL;
| ^~
drivers/i2c/busses/i2c-at91-slave.c:98:14: error: 'struct at91_twi_dev' has no member named 'smr'; did you mean 'imr'?
98 | dev->smr = 0;
| ^~~
| imr
drivers/i2c/busses/i2c-at91-slave.c: At top level:
>> drivers/i2c/busses/i2c-at91-slave.c:118:5: error: redefinition of 'at91_twi_probe_slave'
118 | int at91_twi_probe_slave(struct platform_device *pdev,
| ^~~~~~~~~~~~~~~~~~~~
In file included from drivers/i2c/busses/i2c-at91-slave.c:13:
drivers/i2c/busses/i2c-at91.h:185:19: note: previous definition of 'at91_twi_probe_slave' with type 'int(struct platform_device *, u32, struct at91_twi_dev *)' {aka 'int(struct platform_device *, unsigned int, struct at91_twi_dev *)'}
185 | static inline int at91_twi_probe_slave(struct platform_device *pdev,
| ^~~~~~~~~~~~~~~~~~~~
>> drivers/i2c/busses/i2c-at91-slave.c:135:6: error: redefinition of 'at91_init_twi_bus_slave'
135 | void at91_init_twi_bus_slave(struct at91_twi_dev *dev)
| ^~~~~~~~~~~~~~~~~~~~~~~
drivers/i2c/busses/i2c-at91.h:184:20: note: previous definition of 'at91_init_twi_bus_slave' with type 'void(struct at91_twi_dev *)'
184 | static inline void at91_init_twi_bus_slave(struct at91_twi_dev *dev) {}
| ^~~~~~~~~~~~~~~~~~~~~~~
drivers/i2c/busses/i2c-at91-slave.c: In function 'at91_init_twi_bus_slave':
drivers/i2c/busses/i2c-at91-slave.c:138:41: error: 'struct at91_twi_dev' has no member named 'smr'; did you mean 'imr'?
138 | if (dev->slave_detected && dev->smr) {
| ^~~
| imr
drivers/i2c/busses/i2c-at91-slave.c:139:56: error: 'struct at91_twi_dev' has no member named 'smr'; did you mean 'imr'?
139 | at91_twi_write(dev, AT91_TWI_SMR, dev->smr);
| ^~~
| imr
Kconfig warnings: (for reference only)
WARNING: unmet direct dependencies detected for GET_FREE_REGION
Depends on [n]: SPARSEMEM [=n]
Selected by [m]:
- RESOURCE_KUNIT_TEST [=m] && RUNTIME_TESTING_MENU [=y] && KUNIT [=m]
vim +28 drivers/i2c/busses/i2c-at91-slave.c
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 14
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 15 static irqreturn_t atmel_twi_interrupt_slave(int irq, void *dev_id)
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 16 {
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 17 struct at91_twi_dev *dev = dev_id;
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 18 const unsigned status = at91_twi_read(dev, AT91_TWI_SR);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 19 const unsigned irqstatus = status & at91_twi_read(dev, AT91_TWI_IMR);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 20 u8 value;
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 21
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 22 if (!irqstatus)
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 23 return IRQ_NONE;
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 24
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 25 /* slave address has been detected on I2C bus */
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 26 if (irqstatus & AT91_TWI_SVACC) {
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 27 if (status & AT91_TWI_SVREAD) {
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 @28 i2c_slave_event(dev->slave,
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 29 I2C_SLAVE_READ_REQUESTED, &value);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 30 writeb_relaxed(value, dev->base + AT91_TWI_THR);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 31 at91_twi_write(dev, AT91_TWI_IER,
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 32 AT91_TWI_TXRDY | AT91_TWI_EOSACC);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 33 } else {
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 34 i2c_slave_event(dev->slave,
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 35 I2C_SLAVE_WRITE_REQUESTED, &value);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 36 at91_twi_write(dev, AT91_TWI_IER,
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 37 AT91_TWI_RXRDY | AT91_TWI_EOSACC);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 38 }
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 39 at91_twi_write(dev, AT91_TWI_IDR, AT91_TWI_SVACC);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 40 }
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 41
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 42 /* byte transmitted to remote master */
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 43 if (irqstatus & AT91_TWI_TXRDY) {
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 44 i2c_slave_event(dev->slave, I2C_SLAVE_READ_PROCESSED, &value);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 45 writeb_relaxed(value, dev->base + AT91_TWI_THR);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 46 }
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 47
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 48 /* byte received from remote master */
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 49 if (irqstatus & AT91_TWI_RXRDY) {
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 50 value = readb_relaxed(dev->base + AT91_TWI_RHR);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 51 i2c_slave_event(dev->slave, I2C_SLAVE_WRITE_RECEIVED, &value);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 52 }
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 53
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 54 /* master sent stop */
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 55 if (irqstatus & AT91_TWI_EOSACC) {
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 56 at91_twi_write(dev, AT91_TWI_IDR,
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 57 AT91_TWI_TXRDY | AT91_TWI_RXRDY | AT91_TWI_EOSACC);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 58 at91_twi_write(dev, AT91_TWI_IER, AT91_TWI_SVACC);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 59 i2c_slave_event(dev->slave, I2C_SLAVE_STOP, &value);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 60 }
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 61
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 62 return IRQ_HANDLED;
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 63 }
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 64
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 65 static int at91_reg_slave(struct i2c_client *slave)
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 66 {
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 67 struct at91_twi_dev *dev = i2c_get_adapdata(slave->adapter);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 68
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 @69 if (dev->slave)
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 70 return -EBUSY;
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 71
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 72 if (slave->flags & I2C_CLIENT_TEN)
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 73 return -EAFNOSUPPORT;
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 74
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 75 /* Make sure twi_clk doesn't get turned off! */
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 76 pm_runtime_get_sync(dev->dev);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 77
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 78 dev->slave = slave;
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 @79 dev->smr = AT91_TWI_SMR_SADR(slave->addr);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 80
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 81 at91_init_twi_bus(dev);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 82 at91_twi_write(dev, AT91_TWI_IER, AT91_TWI_SVACC);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 83
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 84 dev_info(dev->dev, "entered slave mode (ADR=%d)\n", slave->addr);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 85
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 86 return 0;
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 87 }
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 88
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 89 static int at91_unreg_slave(struct i2c_client *slave)
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 90 {
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 91 struct at91_twi_dev *dev = i2c_get_adapdata(slave->adapter);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 92
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 93 WARN_ON(!dev->slave);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 94
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 95 dev_info(dev->dev, "leaving slave mode\n");
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 96
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 @97 dev->slave = NULL;
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 98 dev->smr = 0;
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 99
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 100 at91_init_twi_bus(dev);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 101
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 102 pm_runtime_put(dev->dev);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 103
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 104 return 0;
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 105 }
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 106
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 107 static u32 at91_twi_func(struct i2c_adapter *adapter)
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 108 {
d6d5645e5fc123 Jean Delvare 2024-05-31 109 return I2C_FUNC_SLAVE;
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 110 }
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 111
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 112 static const struct i2c_algorithm at91_twi_algorithm_slave = {
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 113 .reg_slave = at91_reg_slave,
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 114 .unreg_slave = at91_unreg_slave,
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 115 .functionality = at91_twi_func,
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 116 };
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 117
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 @118 int at91_twi_probe_slave(struct platform_device *pdev,
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 119 u32 phy_addr, struct at91_twi_dev *dev)
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 120 {
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 121 int rc;
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 122
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 123 rc = devm_request_irq(&pdev->dev, dev->irq, atmel_twi_interrupt_slave,
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 124 0, dev_name(dev->dev), dev);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 125 if (rc) {
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 126 dev_err(dev->dev, "Cannot get irq %d: %d\n", dev->irq, rc);
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 127 return rc;
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 128 }
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 129
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 130 dev->adapter.algo = &at91_twi_algorithm_slave;
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 131
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 132 return 0;
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 133 }
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 134
9d3ca54b550ca0 Juergen Fitschen 2019-02-22 @135 void at91_init_twi_bus_slave(struct at91_twi_dev *dev)
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 3+ messages in thread