Re: [PATCH 1/2] [media] atmel-isc: add the Image Sensor Controller code

From: Wu, Songjun
Date: Thu Apr 14 2016 - 01:44:57 EST


The option 'CONFIG_COMMON_CLK=y' is needed to add to '.config'.
But I do not validate, '.config' will be generated automatically and overwritten when it is changed.

On 4/14/2016 00:01, kbuild test robot wrote:
Hi Songjun,

[auto build test ERROR on linuxtv-media/master]
[also build test ERROR on v4.6-rc3 next-20160413]
[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/Songjun-Wu/atmel-isc-add-driver-for-Atmel-ISC/20160413-155337
base: git://linuxtv.org/media_tree.git master
config: powerpc-allyesconfig (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=powerpc

All errors (new ones prefixed by >>):

from include/linux/of.h:21,
from drivers/media/platform/atmel/atmel-isc.c:27:
drivers/media/platform/atmel/atmel-isc.c: In function 'isc_clk_enable':
include/linux/kernel.h:824:48: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
^
drivers/media/platform/atmel/atmel-isc.c:55:24: note: in expansion of macro 'container_of'
#define to_isc_clk(hw) container_of(hw, struct isc_clk, hw)
^
drivers/media/platform/atmel/atmel-isc.c:247:28: note: in expansion of macro 'to_isc_clk'
struct isc_clk *isc_clk = to_isc_clk(hw);
^
include/linux/kernel.h:824:48: note: (near initialization for 'isc_clk')
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
^
drivers/media/platform/atmel/atmel-isc.c:55:24: note: in expansion of macro 'container_of'
#define to_isc_clk(hw) container_of(hw, struct isc_clk, hw)
^
drivers/media/platform/atmel/atmel-isc.c:247:28: note: in expansion of macro 'to_isc_clk'
struct isc_clk *isc_clk = to_isc_clk(hw);
^
drivers/media/platform/atmel/atmel-isc.c: In function 'isc_clk_disable':
include/linux/kernel.h:824:48: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
^
drivers/media/platform/atmel/atmel-isc.c:55:24: note: in expansion of macro 'container_of'
#define to_isc_clk(hw) container_of(hw, struct isc_clk, hw)
^
drivers/media/platform/atmel/atmel-isc.c:280:28: note: in expansion of macro 'to_isc_clk'
struct isc_clk *isc_clk = to_isc_clk(hw);
^
include/linux/kernel.h:824:48: note: (near initialization for 'isc_clk')
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
^
drivers/media/platform/atmel/atmel-isc.c:55:24: note: in expansion of macro 'container_of'
#define to_isc_clk(hw) container_of(hw, struct isc_clk, hw)
^
drivers/media/platform/atmel/atmel-isc.c:280:28: note: in expansion of macro 'to_isc_clk'
struct isc_clk *isc_clk = to_isc_clk(hw);
^
drivers/media/platform/atmel/atmel-isc.c: In function 'isc_clk_is_enabled':
include/linux/kernel.h:824:48: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
^
drivers/media/platform/atmel/atmel-isc.c:55:24: note: in expansion of macro 'container_of'
#define to_isc_clk(hw) container_of(hw, struct isc_clk, hw)
^
drivers/media/platform/atmel/atmel-isc.c:295:28: note: in expansion of macro 'to_isc_clk'
struct isc_clk *isc_clk = to_isc_clk(hw);
^
include/linux/kernel.h:824:48: note: (near initialization for 'isc_clk')
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
^
drivers/media/platform/atmel/atmel-isc.c:55:24: note: in expansion of macro 'container_of'
#define to_isc_clk(hw) container_of(hw, struct isc_clk, hw)
^
drivers/media/platform/atmel/atmel-isc.c:295:28: note: in expansion of macro 'to_isc_clk'
struct isc_clk *isc_clk = to_isc_clk(hw);
^
drivers/media/platform/atmel/atmel-isc.c: In function 'isc_clk_recalc_rate':
include/linux/kernel.h:824:48: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
^
drivers/media/platform/atmel/atmel-isc.c:55:24: note: in expansion of macro 'container_of'
#define to_isc_clk(hw) container_of(hw, struct isc_clk, hw)
^
drivers/media/platform/atmel/atmel-isc.c:309:28: note: in expansion of macro 'to_isc_clk'
struct isc_clk *isc_clk = to_isc_clk(hw);
^
include/linux/kernel.h:824:48: note: (near initialization for 'isc_clk')
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
^
drivers/media/platform/atmel/atmel-isc.c:55:24: note: in expansion of macro 'container_of'
#define to_isc_clk(hw) container_of(hw, struct isc_clk, hw)
^
drivers/media/platform/atmel/atmel-isc.c:309:28: note: in expansion of macro 'to_isc_clk'
struct isc_clk *isc_clk = to_isc_clk(hw);
^
drivers/media/platform/atmel/atmel-isc.c: At top level:
drivers/media/platform/atmel/atmel-isc.c:315:14: warning: 'struct clk_rate_request' declared inside parameter list
struct clk_rate_request *req)
^
drivers/media/platform/atmel/atmel-isc.c:315:14: warning: its scope is only this definition or declaration, which is probably not what you want
drivers/media/platform/atmel/atmel-isc.c: In function 'isc_clk_determine_rate':
drivers/media/platform/atmel/atmel-isc.c:324:18: error: implicit declaration of function 'clk_hw_get_num_parents' [-Werror=implicit-function-declaration]
for (i = 0; i < clk_hw_get_num_parents(hw); i++) {
^
drivers/media/platform/atmel/atmel-isc.c:325:12: error: implicit declaration of function 'clk_hw_get_parent_by_index' [-Werror=implicit-function-declaration]
parent = clk_hw_get_parent_by_index(hw, i);
^
drivers/media/platform/atmel/atmel-isc.c:325:10: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
parent = clk_hw_get_parent_by_index(hw, i);
^
drivers/media/platform/atmel/atmel-isc.c:329:17: error: implicit declaration of function 'clk_hw_get_rate' [-Werror=implicit-function-declaration]
parent_rate = clk_hw_get_rate(parent);
^
In file included from include/linux/list.h:8:0,
from include/linux/kobject.h:20,
from include/linux/of.h:21,
from drivers/media/platform/atmel/atmel-isc.c:27:
drivers/media/platform/atmel/atmel-isc.c:335:22: error: dereferencing pointer to incomplete type 'struct clk_rate_request'
tmp_diff = abs(req->rate - tmp_rate);
^
include/linux/kernel.h:222:38: note: in definition of macro '__abs_choose_expr'
__builtin_types_compatible_p(typeof(x), signed type) || \
^
drivers/media/platform/atmel/atmel-isc.c:335:15: note: in expansion of macro 'abs'
tmp_diff = abs(req->rate - tmp_rate);
^
include/linux/kernel.h:216:3: error: first argument to '__builtin_choose_expr' not a constant
__builtin_choose_expr( \
^
include/linux/kernel.h:224:54: note: in definition of macro '__abs_choose_expr'
({ signed type __x = (x); __x < 0 ? -__x : __x; }), other)
^
include/linux/kernel.h:212:3: note: in expansion of macro '__abs_choose_expr'
__abs_choose_expr(x, long, \
^
include/linux/kernel.h:213:3: note: in expansion of macro '__abs_choose_expr'
__abs_choose_expr(x, int, \
^
include/linux/kernel.h:214:3: note: in expansion of macro '__abs_choose_expr'
__abs_choose_expr(x, short, \
^
include/linux/kernel.h:215:3: note: in expansion of macro '__abs_choose_expr'
__abs_choose_expr(x, char, \
^
drivers/media/platform/atmel/atmel-isc.c:335:15: note: in expansion of macro 'abs'
tmp_diff = abs(req->rate - tmp_rate);
^
include/linux/kernel.h:221:43: error: first argument to '__builtin_choose_expr' not a constant
#define __abs_choose_expr(x, type, other) __builtin_choose_expr( \
^
include/linux/kernel.h:224:54: note: in definition of macro '__abs_choose_expr'
({ signed type __x = (x); __x < 0 ? -__x : __x; }), other)
^
include/linux/kernel.h:212:3: note: in expansion of macro '__abs_choose_expr'
__abs_choose_expr(x, long, \
^
include/linux/kernel.h:213:3: note: in expansion of macro '__abs_choose_expr'
__abs_choose_expr(x, int, \
^
include/linux/kernel.h:214:3: note: in expansion of macro '__abs_choose_expr'
__abs_choose_expr(x, short, \
^
include/linux/kernel.h:215:3: note: in expansion of macro '__abs_choose_expr'
__abs_choose_expr(x, char, \
^
drivers/media/platform/atmel/atmel-isc.c:335:15: note: in expansion of macro 'abs'
tmp_diff = abs(req->rate - tmp_rate);
^
include/linux/kernel.h:221:43: error: first argument to '__builtin_choose_expr' not a constant
#define __abs_choose_expr(x, type, other) __builtin_choose_expr( \
^
include/linux/kernel.h:224:54: note: in definition of macro '__abs_choose_expr'
({ signed type __x = (x); __x < 0 ? -__x : __x; }), other)
^
include/linux/kernel.h:212:3: note: in expansion of macro '__abs_choose_expr'
__abs_choose_expr(x, long, \
^
include/linux/kernel.h:213:3: note: in expansion of macro '__abs_choose_expr'
__abs_choose_expr(x, int, \
^
include/linux/kernel.h:214:3: note: in expansion of macro '__abs_choose_expr'
__abs_choose_expr(x, short, \
^
drivers/media/platform/atmel/atmel-isc.c:335:15: note: in expansion of macro 'abs'
tmp_diff = abs(req->rate - tmp_rate);
^
include/linux/kernel.h:221:43: error: first argument to '__builtin_choose_expr' not a constant
#define __abs_choose_expr(x, type, other) __builtin_choose_expr( \
^
include/linux/kernel.h:224:54: note: in definition of macro '__abs_choose_expr'
({ signed type __x = (x); __x < 0 ? -__x : __x; }), other)
^
include/linux/kernel.h:212:3: note: in expansion of macro '__abs_choose_expr'
__abs_choose_expr(x, long, \
^
include/linux/kernel.h:213:3: note: in expansion of macro '__abs_choose_expr'
__abs_choose_expr(x, int, \
^
drivers/media/platform/atmel/atmel-isc.c:335:15: note: in expansion of macro 'abs'
tmp_diff = abs(req->rate - tmp_rate);
^
include/linux/kernel.h:221:43: error: first argument to '__builtin_choose_expr' not a constant
#define __abs_choose_expr(x, type, other) __builtin_choose_expr( \
^
include/linux/kernel.h:224:54: note: in definition of macro '__abs_choose_expr'
({ signed type __x = (x); __x < 0 ? -__x : __x; }), other)
^
include/linux/kernel.h:212:3: note: in expansion of macro '__abs_choose_expr'
__abs_choose_expr(x, long, \
^
drivers/media/platform/atmel/atmel-isc.c:335:15: note: in expansion of macro 'abs'
tmp_diff = abs(req->rate - tmp_rate);
^
include/linux/kernel.h:221:43: error: first argument to '__builtin_choose_expr' not a constant
#define __abs_choose_expr(x, type, other) __builtin_choose_expr( \
^
include/linux/kernel.h:211:16: note: in expansion of macro '__abs_choose_expr'
#define abs(x) __abs_choose_expr(x, long long, \
^
drivers/media/platform/atmel/atmel-isc.c:335:15: note: in expansion of macro 'abs'
tmp_diff = abs(req->rate - tmp_rate);
^
In file included from include/linux/printk.h:277:0,
from include/linux/kernel.h:13,
from include/linux/list.h:8,
from include/linux/kobject.h:20,
from include/linux/of.h:21,
from drivers/media/platform/atmel/atmel-isc.c:27:
drivers/media/platform/atmel/atmel-isc.c:354:4: error: implicit declaration of function '__clk_get_name' [-Werror=implicit-function-declaration]
__clk_get_name((req->best_parent_hw)->clk),
^
include/linux/dynamic_debug.h:79:10: note: in definition of macro 'dynamic_pr_debug'
##__VA_ARGS__); \
^
drivers/media/platform/atmel/atmel-isc.c:352:2: note: in expansion of macro 'pr_debug'
pr_debug("ISC CLK: %s, best_rate = %ld, parent clk: %s @ %ld\n",
^
In file included from include/linux/list.h:8:0,
from include/linux/kobject.h:20,
from include/linux/of.h:21,
from drivers/media/platform/atmel/atmel-isc.c:27:
drivers/media/platform/atmel/atmel-isc.c: In function 'isc_clk_set_parent':
include/linux/kernel.h:824:48: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
^
drivers/media/platform/atmel/atmel-isc.c:55:24: note: in expansion of macro 'container_of'
#define to_isc_clk(hw) container_of(hw, struct isc_clk, hw)
^
drivers/media/platform/atmel/atmel-isc.c:367:28: note: in expansion of macro 'to_isc_clk'
struct isc_clk *isc_clk = to_isc_clk(hw);
^
include/linux/kernel.h:824:48: note: (near initialization for 'isc_clk')
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
^
drivers/media/platform/atmel/atmel-isc.c:55:24: note: in expansion of macro 'container_of'
#define to_isc_clk(hw) container_of(hw, struct isc_clk, hw)
^
drivers/media/platform/atmel/atmel-isc.c:367:28: note: in expansion of macro 'to_isc_clk'
struct isc_clk *isc_clk = to_isc_clk(hw);
^
drivers/media/platform/atmel/atmel-isc.c: In function 'isc_clk_get_parent':
include/linux/kernel.h:824:48: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
^
drivers/media/platform/atmel/atmel-isc.c:55:24: note: in expansion of macro 'container_of'
#define to_isc_clk(hw) container_of(hw, struct isc_clk, hw)
^
drivers/media/platform/atmel/atmel-isc.c:379:28: note: in expansion of macro 'to_isc_clk'
struct isc_clk *isc_clk = to_isc_clk(hw);
^
include/linux/kernel.h:824:48: note: (near initialization for 'isc_clk')
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
^
drivers/media/platform/atmel/atmel-isc.c:55:24: note: in expansion of macro 'container_of'
#define to_isc_clk(hw) container_of(hw, struct isc_clk, hw)
^
drivers/media/platform/atmel/atmel-isc.c:379:28: note: in expansion of macro 'to_isc_clk'
struct isc_clk *isc_clk = to_isc_clk(hw);
^
drivers/media/platform/atmel/atmel-isc.c: In function 'isc_clk_set_rate':
include/linux/kernel.h:824:48: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
^
drivers/media/platform/atmel/atmel-isc.c:55:24: note: in expansion of macro 'container_of'
#define to_isc_clk(hw) container_of(hw, struct isc_clk, hw)
^
drivers/media/platform/atmel/atmel-isc.c:388:28: note: in expansion of macro 'to_isc_clk'
struct isc_clk *isc_clk = to_isc_clk(hw);
^
include/linux/kernel.h:824:48: note: (near initialization for 'isc_clk')
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
^
drivers/media/platform/atmel/atmel-isc.c:55:24: note: in expansion of macro 'container_of'
#define to_isc_clk(hw) container_of(hw, struct isc_clk, hw)
^
drivers/media/platform/atmel/atmel-isc.c:388:28: note: in expansion of macro 'to_isc_clk'
struct isc_clk *isc_clk = to_isc_clk(hw);
^
drivers/media/platform/atmel/atmel-isc.c: At top level:
drivers/media/platform/atmel/atmel-isc.c:403:21: error: variable 'isc_clk_ops' has initializer but incomplete type
static const struct clk_ops isc_clk_ops = {
^
drivers/media/platform/atmel/atmel-isc.c:404:2: error: unknown field 'enable' specified in initializer
.enable = isc_clk_enable,
^
drivers/media/platform/atmel/atmel-isc.c:404:13: warning: excess elements in struct initializer
.enable = isc_clk_enable,
^
drivers/media/platform/atmel/atmel-isc.c:404:13: note: (near initialization for 'isc_clk_ops')
drivers/media/platform/atmel/atmel-isc.c:405:2: error: unknown field 'disable' specified in initializer
.disable = isc_clk_disable,
^
drivers/media/platform/atmel/atmel-isc.c:405:13: warning: excess elements in struct initializer
.disable = isc_clk_disable,
^
drivers/media/platform/atmel/atmel-isc.c:405:13: note: (near initialization for 'isc_clk_ops')
drivers/media/platform/atmel/atmel-isc.c:406:2: error: unknown field 'is_enabled' specified in initializer
.is_enabled = isc_clk_is_enabled,
^
drivers/media/platform/atmel/atmel-isc.c:406:16: warning: excess elements in struct initializer
.is_enabled = isc_clk_is_enabled,
^
drivers/media/platform/atmel/atmel-isc.c:406:16: note: (near initialization for 'isc_clk_ops')
drivers/media/platform/atmel/atmel-isc.c:407:2: error: unknown field 'recalc_rate' specified in initializer
.recalc_rate = isc_clk_recalc_rate,
^
drivers/media/platform/atmel/atmel-isc.c:407:17: warning: excess elements in struct initializer
.recalc_rate = isc_clk_recalc_rate,
^

vim +335 drivers/media/platform/atmel/atmel-isc.c

323
324 for (i = 0; i < clk_hw_get_num_parents(hw); i++) {
325 parent = clk_hw_get_parent_by_index(hw, i);
326 if (!parent)
327 continue;
328
> 329 parent_rate = clk_hw_get_rate(parent);
330 if (!parent_rate)
331 continue;
332
333 for (div = 1; div < ISC_CLK_MAX_DIV + 2; div++) {
334 tmp_rate = DIV_ROUND_CLOSEST(parent_rate, div);
> 335 tmp_diff = abs(req->rate - tmp_rate);
336
337 if (best_diff < 0 || best_diff > tmp_diff) {
338 best_rate = tmp_rate;
339 best_diff = tmp_diff;
340 req->best_parent_rate = parent_rate;
341 req->best_parent_hw = parent;
342 }
343
344 if (!best_diff || tmp_rate < req->rate)
345 break;
346 }
347
348 if (!best_diff)
349 break;
350 }
351
352 pr_debug("ISC CLK: %s, best_rate = %ld, parent clk: %s @ %ld\n",
353 __func__, best_rate,
> 354 __clk_get_name((req->best_parent_hw)->clk),
355 req->best_parent_rate);
356
357 if (best_rate < 0)

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