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// SPDX-License-Identifier: GPL-2.0-only
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/*
* Copyright ( C ) 2013 Pengutronix
* Uwe Kleine - Koenig < u . kleine - koenig @ pengutronix . de >
*/
# include <linux/io.h>
# include <linux/clk-provider.h>
# include <linux/of.h>
# include <linux/of_address.h>
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# include <linux/slab.h>
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# include <dt-bindings/clock/efm32-cmu.h>
# define CMU_HFPERCLKEN0 0x44
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# define CMU_MAX_CLKS 37
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static struct clk_hw_onecell_data * clk_data ;
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clk/efm32gg: fix dt init prototype
Since commit 54196ccbe0ba (of: consolidate linker section OF match table
declarations) which went into 3.16-rc1 the following compiler warning is
generated:
In file included from drivers/clk/clk-efm32gg.c:12:0: include/linux/of.h:772:20:
warning: comparison of distinct pointer types lacks a cast [enabled by default]
.data = (fn == (fn_type)NULL) ? fn : fn }
^
include/linux/of.h:785:3: note: in expansion of macro '_OF_DECLARE'
_OF_DECLARE(table, name, compat, fn, of_init_fn_1)
^
include/linux/clk-provider.h:545:42: note: in expansion of macro 'OF_DECLARE_1'
#define CLK_OF_DECLARE(name, compat, fn) OF_DECLARE_1(clk, name, compat, fn)
^
drivers/clk/clk-efm32gg.c:81:1: note: in expansion of macro 'CLK_OF_DECLARE'
CLK_OF_DECLARE(efm32ggcmu, "efm32gg,cmu", efm32gg_cmu_init);
^
Fix it by making efm32gg_cmu_init return void.
Cc: Rob Herring <robh@kernel.org>
Reported-by: Bryan Hundven <bryanhundven@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-28 16:38:21 +02:00
static void __init efm32gg_cmu_init ( struct device_node * np )
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{
int i ;
void __iomem * base ;
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struct clk_hw * * hws ;
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treewide: Use struct_size() for kmalloc()-family
One of the more common cases of allocation size calculations is finding
the size of a structure that has a zero-sized array at the end, along
with memory for some number of elements for that array. For example:
struct foo {
int stuff;
void *entry[];
};
instance = kmalloc(sizeof(struct foo) + sizeof(void *) * count, GFP_KERNEL);
Instead of leaving these open-coded and prone to type mistakes, we can
now use the new struct_size() helper:
instance = kmalloc(struct_size(instance, entry, count), GFP_KERNEL);
This patch makes the changes for kmalloc()-family (and kvmalloc()-family)
uses. It was done via automatic conversion with manual review for the
"CHECKME" non-standard cases noted below, using the following Coccinelle
script:
// pkey_cache = kmalloc(sizeof *pkey_cache + tprops->pkey_tbl_len *
// sizeof *pkey_cache->table, GFP_KERNEL);
@@
identifier alloc =~ "kmalloc|kzalloc|kvmalloc|kvzalloc";
expression GFP;
identifier VAR, ELEMENT;
expression COUNT;
@@
- alloc(sizeof(*VAR) + COUNT * sizeof(*VAR->ELEMENT), GFP)
+ alloc(struct_size(VAR, ELEMENT, COUNT), GFP)
// mr = kzalloc(sizeof(*mr) + m * sizeof(mr->map[0]), GFP_KERNEL);
@@
identifier alloc =~ "kmalloc|kzalloc|kvmalloc|kvzalloc";
expression GFP;
identifier VAR, ELEMENT;
expression COUNT;
@@
- alloc(sizeof(*VAR) + COUNT * sizeof(VAR->ELEMENT[0]), GFP)
+ alloc(struct_size(VAR, ELEMENT, COUNT), GFP)
// Same pattern, but can't trivially locate the trailing element name,
// or variable name.
@@
identifier alloc =~ "kmalloc|kzalloc|kvmalloc|kvzalloc";
expression GFP;
expression SOMETHING, COUNT, ELEMENT;
@@
- alloc(sizeof(SOMETHING) + COUNT * sizeof(ELEMENT), GFP)
+ alloc(CHECKME_struct_size(&SOMETHING, ELEMENT, COUNT), GFP)
Signed-off-by: Kees Cook <keescook@chromium.org>
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clk_data = kzalloc ( struct_size ( clk_data , hws , CMU_MAX_CLKS ) ,
GFP_KERNEL ) ;
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if ( ! clk_data )
return ;
hws = clk_data - > hws ;
for ( i = 0 ; i < CMU_MAX_CLKS ; + + i )
hws [ i ] = ERR_PTR ( - ENOENT ) ;
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base = of_iomap ( np , 0 ) ;
if ( ! base ) {
pr_warn ( " Failed to map address range for efm32gg,cmu node \n " ) ;
clk/efm32gg: fix dt init prototype
Since commit 54196ccbe0ba (of: consolidate linker section OF match table
declarations) which went into 3.16-rc1 the following compiler warning is
generated:
In file included from drivers/clk/clk-efm32gg.c:12:0: include/linux/of.h:772:20:
warning: comparison of distinct pointer types lacks a cast [enabled by default]
.data = (fn == (fn_type)NULL) ? fn : fn }
^
include/linux/of.h:785:3: note: in expansion of macro '_OF_DECLARE'
_OF_DECLARE(table, name, compat, fn, of_init_fn_1)
^
include/linux/clk-provider.h:545:42: note: in expansion of macro 'OF_DECLARE_1'
#define CLK_OF_DECLARE(name, compat, fn) OF_DECLARE_1(clk, name, compat, fn)
^
drivers/clk/clk-efm32gg.c:81:1: note: in expansion of macro 'CLK_OF_DECLARE'
CLK_OF_DECLARE(efm32ggcmu, "efm32gg,cmu", efm32gg_cmu_init);
^
Fix it by making efm32gg_cmu_init return void.
Cc: Rob Herring <robh@kernel.org>
Reported-by: Bryan Hundven <bryanhundven@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
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return ;
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}
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hws [ clk_HFXO ] = clk_hw_register_fixed_rate ( NULL , " HFXO " , NULL , 0 ,
48000000 ) ;
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hws [ clk_HFPERCLKUSART0 ] = clk_hw_register_gate ( NULL , " HFPERCLK.USART0 " ,
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" HFXO " , 0 , base + CMU_HFPERCLKEN0 , 0 , 0 , NULL ) ;
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hws [ clk_HFPERCLKUSART1 ] = clk_hw_register_gate ( NULL , " HFPERCLK.USART1 " ,
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" HFXO " , 0 , base + CMU_HFPERCLKEN0 , 1 , 0 , NULL ) ;
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hws [ clk_HFPERCLKUSART2 ] = clk_hw_register_gate ( NULL , " HFPERCLK.USART2 " ,
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" HFXO " , 0 , base + CMU_HFPERCLKEN0 , 2 , 0 , NULL ) ;
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hws [ clk_HFPERCLKUART0 ] = clk_hw_register_gate ( NULL , " HFPERCLK.UART0 " ,
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" HFXO " , 0 , base + CMU_HFPERCLKEN0 , 3 , 0 , NULL ) ;
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hws [ clk_HFPERCLKUART1 ] = clk_hw_register_gate ( NULL , " HFPERCLK.UART1 " ,
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" HFXO " , 0 , base + CMU_HFPERCLKEN0 , 4 , 0 , NULL ) ;
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hws [ clk_HFPERCLKTIMER0 ] = clk_hw_register_gate ( NULL , " HFPERCLK.TIMER0 " ,
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" HFXO " , 0 , base + CMU_HFPERCLKEN0 , 5 , 0 , NULL ) ;
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hws [ clk_HFPERCLKTIMER1 ] = clk_hw_register_gate ( NULL , " HFPERCLK.TIMER1 " ,
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" HFXO " , 0 , base + CMU_HFPERCLKEN0 , 6 , 0 , NULL ) ;
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hws [ clk_HFPERCLKTIMER2 ] = clk_hw_register_gate ( NULL , " HFPERCLK.TIMER2 " ,
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" HFXO " , 0 , base + CMU_HFPERCLKEN0 , 7 , 0 , NULL ) ;
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hws [ clk_HFPERCLKTIMER3 ] = clk_hw_register_gate ( NULL , " HFPERCLK.TIMER3 " ,
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" HFXO " , 0 , base + CMU_HFPERCLKEN0 , 8 , 0 , NULL ) ;
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hws [ clk_HFPERCLKACMP0 ] = clk_hw_register_gate ( NULL , " HFPERCLK.ACMP0 " ,
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" HFXO " , 0 , base + CMU_HFPERCLKEN0 , 9 , 0 , NULL ) ;
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hws [ clk_HFPERCLKACMP1 ] = clk_hw_register_gate ( NULL , " HFPERCLK.ACMP1 " ,
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" HFXO " , 0 , base + CMU_HFPERCLKEN0 , 10 , 0 , NULL ) ;
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hws [ clk_HFPERCLKI2C0 ] = clk_hw_register_gate ( NULL , " HFPERCLK.I2C0 " ,
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" HFXO " , 0 , base + CMU_HFPERCLKEN0 , 11 , 0 , NULL ) ;
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hws [ clk_HFPERCLKI2C1 ] = clk_hw_register_gate ( NULL , " HFPERCLK.I2C1 " ,
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" HFXO " , 0 , base + CMU_HFPERCLKEN0 , 12 , 0 , NULL ) ;
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hws [ clk_HFPERCLKGPIO ] = clk_hw_register_gate ( NULL , " HFPERCLK.GPIO " ,
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" HFXO " , 0 , base + CMU_HFPERCLKEN0 , 13 , 0 , NULL ) ;
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hws [ clk_HFPERCLKVCMP ] = clk_hw_register_gate ( NULL , " HFPERCLK.VCMP " ,
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" HFXO " , 0 , base + CMU_HFPERCLKEN0 , 14 , 0 , NULL ) ;
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hws [ clk_HFPERCLKPRS ] = clk_hw_register_gate ( NULL , " HFPERCLK.PRS " ,
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" HFXO " , 0 , base + CMU_HFPERCLKEN0 , 15 , 0 , NULL ) ;
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hws [ clk_HFPERCLKADC0 ] = clk_hw_register_gate ( NULL , " HFPERCLK.ADC0 " ,
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" HFXO " , 0 , base + CMU_HFPERCLKEN0 , 16 , 0 , NULL ) ;
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hws [ clk_HFPERCLKDAC0 ] = clk_hw_register_gate ( NULL , " HFPERCLK.DAC0 " ,
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" HFXO " , 0 , base + CMU_HFPERCLKEN0 , 17 , 0 , NULL ) ;
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of_clk_add_hw_provider ( np , of_clk_hw_onecell_get , clk_data ) ;
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}
CLK_OF_DECLARE ( efm32ggcmu , " efm32gg,cmu " , efm32gg_cmu_init ) ;
