Re: [PATCH v12 2/2] drm/bridge: Add I2C based driver for ps8640 bridge
From: kbuild test robot
Date: Wed Mar 16 2016 - 11:01:53 EST
Hi Jitao,
[auto build test WARNING on drm/drm-next]
[also build test WARNING on v4.5 next-20160316]
[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/Jitao-Shi/Documentation-bridge-Add-documentation-for-ps8640-DT-properties/20160316-213031
base: git://people.freedesktop.org/~airlied/linux.git drm-next
config: x86_64-allmodconfig (attached as .config)
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64
All warnings (new ones prefixed by >>):
include/linux/compiler.h:228:8: sparse: attribute 'no_sanitize_address': unknown attribute
drivers/gpu/drm/bridge/parade-ps8640.c:114:30: sparse: invalid initializer
drivers/gpu/drm/bridge/parade-ps8640.c:430:24: sparse: undefined identifier 'of_find_mipi_dsi_host_by_node'
drivers/gpu/drm/bridge/parade-ps8640.c:114:37: warning: excess elements in scalar initializer
static const u8 hw_chip_id = {0x00, 0x0a, 0x00, 0x30};
^
drivers/gpu/drm/bridge/parade-ps8640.c:114:37: note: (near initialization for 'hw_chip_id')
drivers/gpu/drm/bridge/parade-ps8640.c:114:43: warning: excess elements in scalar initializer
static const u8 hw_chip_id = {0x00, 0x0a, 0x00, 0x30};
^
drivers/gpu/drm/bridge/parade-ps8640.c:114:43: note: (near initialization for 'hw_chip_id')
drivers/gpu/drm/bridge/parade-ps8640.c:114:49: warning: excess elements in scalar initializer
static const u8 hw_chip_id = {0x00, 0x0a, 0x00, 0x30};
^
drivers/gpu/drm/bridge/parade-ps8640.c:114:49: note: (near initialization for 'hw_chip_id')
drivers/gpu/drm/bridge/parade-ps8640.c: In function 'ps8640_bridge_attach':
drivers/gpu/drm/bridge/parade-ps8640.c:430:10: error: implicit declaration of function 'of_find_mipi_dsi_host_by_node' [-Werror=implicit-function-declaration]
host = of_find_mipi_dsi_host_by_node(dsi_node);
^
drivers/gpu/drm/bridge/parade-ps8640.c:430:8: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
host = of_find_mipi_dsi_host_by_node(dsi_node);
^
drivers/gpu/drm/bridge/parade-ps8640.c: In function 'ps8640_check_chip_id':
>> drivers/gpu/drm/bridge/parade-ps8640.c:717:21: warning: passing argument 2 of 'memcmp' makes pointer from integer without a cast [-Wint-conversion]
return memcmp(buf, hw_chip_id, sizeof(buf));
^
In file included from include/linux/bitmap.h:8:0,
from include/linux/cpumask.h:11,
from arch/x86/include/asm/cpumask.h:4,
from arch/x86/include/asm/msr.h:10,
from arch/x86/include/asm/processor.h:20,
from arch/x86/include/asm/thread_info.h:52,
from include/linux/thread_info.h:54,
from arch/x86/include/asm/preempt.h:6,
from include/linux/preempt.h:59,
from include/linux/spinlock.h:50,
from include/linux/mmzone.h:7,
from include/linux/gfp.h:5,
from include/linux/firmware.h:6,
from drivers/gpu/drm/bridge/parade-ps8640.c:16:
include/linux/string.h:112:12: note: expected 'const void *' but argument is of type 'u8 {aka const unsigned char}'
extern int memcmp(const void *,const void *,__kernel_size_t);
^
cc1: some warnings being treated as errors
sparse warnings: (new ones prefixed by >>)
include/linux/compiler.h:228:8: sparse: attribute 'no_sanitize_address': unknown attribute
>> drivers/gpu/drm/bridge/parade-ps8640.c:114:30: sparse: invalid initializer
drivers/gpu/drm/bridge/parade-ps8640.c:430:24: sparse: undefined identifier 'of_find_mipi_dsi_host_by_node'
drivers/gpu/drm/bridge/parade-ps8640.c:114:37: warning: excess elements in scalar initializer
static const u8 hw_chip_id = {0x00, 0x0a, 0x00, 0x30};
^
drivers/gpu/drm/bridge/parade-ps8640.c:114:37: note: (near initialization for 'hw_chip_id')
drivers/gpu/drm/bridge/parade-ps8640.c:114:43: warning: excess elements in scalar initializer
static const u8 hw_chip_id = {0x00, 0x0a, 0x00, 0x30};
^
drivers/gpu/drm/bridge/parade-ps8640.c:114:43: note: (near initialization for 'hw_chip_id')
drivers/gpu/drm/bridge/parade-ps8640.c:114:49: warning: excess elements in scalar initializer
static const u8 hw_chip_id = {0x00, 0x0a, 0x00, 0x30};
^
drivers/gpu/drm/bridge/parade-ps8640.c:114:49: note: (near initialization for 'hw_chip_id')
drivers/gpu/drm/bridge/parade-ps8640.c: In function 'ps8640_bridge_attach':
drivers/gpu/drm/bridge/parade-ps8640.c:430:10: error: implicit declaration of function 'of_find_mipi_dsi_host_by_node' [-Werror=implicit-function-declaration]
host = of_find_mipi_dsi_host_by_node(dsi_node);
^
drivers/gpu/drm/bridge/parade-ps8640.c:430:8: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
host = of_find_mipi_dsi_host_by_node(dsi_node);
^
drivers/gpu/drm/bridge/parade-ps8640.c: In function 'ps8640_check_chip_id':
drivers/gpu/drm/bridge/parade-ps8640.c:717:21: warning: passing argument 2 of 'memcmp' makes pointer from integer without a cast [-Wint-conversion]
return memcmp(buf, hw_chip_id, sizeof(buf));
^
In file included from include/linux/bitmap.h:8:0,
from include/linux/cpumask.h:11,
from arch/x86/include/asm/cpumask.h:4,
from arch/x86/include/asm/msr.h:10,
from arch/x86/include/asm/processor.h:20,
from arch/x86/include/asm/thread_info.h:52,
from include/linux/thread_info.h:54,
from arch/x86/include/asm/preempt.h:6,
from include/linux/preempt.h:59,
from include/linux/spinlock.h:50,
from include/linux/mmzone.h:7,
from include/linux/gfp.h:5,
from include/linux/firmware.h:6,
from drivers/gpu/drm/bridge/parade-ps8640.c:16:
include/linux/string.h:112:12: note: expected 'const void *' but argument is of type 'u8 {aka const unsigned char}'
extern int memcmp(const void *,const void *,__kernel_size_t);
^
cc1: some warnings being treated as errors
vim +/memcmp +717 drivers/gpu/drm/bridge/parade-ps8640.c
701
702 ret = ps8640_wait_rom_idle(ps_bridge);
703 if (ret) {
704 dev_err(dev, "fail wait rom idle: %d\n", ret);
705 return ret;
706 }
707
708 return 0;
709 }
710
711 static int ps8640_check_chip_id(struct ps8640 *ps_bridge)
712 {
713 struct i2c_client *client = ps_bridge->page[4];
714 u8 buf[4];
715
716 ps8640_read(client, PAGE4_REV_L, buf, 4);
> 717 return memcmp(buf, hw_chip_id, sizeof(buf));
718 }
719
720 static int ps8640_validate_firmware(struct ps8640 *ps_bridge,
721 const struct firmware *fw)
722 {
723 struct i2c_client *client = ps_bridge->page[0];
724 u16 fw_chip_id;
725
---
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