Re: [PATCH v2 8/8] irqchip: Add support for Sunplus SP7021 interrupt controller

[kernel test robot]

Hi Qin,

I love your patch! Yet something to improve:

[auto build test ERROR on robh/for-next]
[also build test ERROR on pza/reset/next clk/clk-next linus/master v5.15-rc7]
[cannot apply to tip/irq/core next-20211029]
[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]

url:    https://github.com/0day-ci/linux/commits/Qin-Jian/Add-Sunplus-SP7021-SoC-Support/20211029-171054
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
config: arm-allyesconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/91ab876ddb6d1a596c50c43a79d3e06b9695dee7
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Qin-Jian/Add-Sunplus-SP7021-SoC-Support/20211029-171054
        git checkout 91ab876ddb6d1a596c50c43a79d3e06b9695dee7
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=arm 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

>> drivers/irqchip/irq-sp7021-intc.c:211:5: error: no previous prototype for 'sp_intc_xlate_of' [-Werror=missing-prototypes]
     211 | int sp_intc_xlate_of(struct irq_domain *d, struct device_node *node,
         |     ^~~~~~~~~~~~~~~~
>> drivers/irqchip/irq-sp7021-intc.c:274:12: error: no previous prototype for 'sp_intc_init_dt' [-Werror=missing-prototypes]
     274 | int __init sp_intc_init_dt(
         |            ^~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors


vim +/sp_intc_xlate_of +211 drivers/irqchip/irq-sp7021-intc.c

   210	
 > 211	int sp_intc_xlate_of(struct irq_domain *d, struct device_node *node,
   212				  const u32 *intspec, unsigned int intsize,
   213				  irq_hw_number_t *out_hwirq, unsigned int *out_type)
   214	{
   215		int ret;
   216	
   217		ret = irq_domain_xlate_twocell(d, node,
   218			intspec, intsize, out_hwirq, out_type);
   219		if (!ret) {
   220			/* intspec[1]: IRQ_TYPE | SP_INTC_EXT_INT
   221			 * SP_INTC_EXT_INT: 0-1,
   222			 *   to indicate route to which parent irq: EXT_INT0/EXT_INT1
   223			 */
   224			u32 ext_int = (intspec[1] & SP_INTC_EXT_INT_MASK) >> SP_INTC_EXT_INT_SHFIT;
   225	
   226			/* priority = 0, route to EXT_INT1
   227			 *    otherwise, route to EXT_INT0
   228			 */
   229			sp_intc_set_priority(*out_hwirq, 1 - ext_int);
   230		}
   231	
   232		return ret;
   233	}
   234	
   235	static struct irq_chip sp_intc_chip = {
   236		.name = "sp_intc",
   237		.irq_ack = sp_intc_ack_irq,
   238		.irq_mask = sp_intc_mask_irq,
   239		.irq_unmask = sp_intc_unmask_irq,
   240		.irq_set_type = sp_intc_set_type,
   241	};
   242	
   243	static int sp_intc_irq_domain_map(struct irq_domain *domain,
   244		unsigned int irq, irq_hw_number_t hwirq)
   245	{
   246		irq_set_chip_and_handler(irq, &sp_intc_chip, handle_level_irq);
   247		irq_set_chip_data(irq, &sp_intc_chip);
   248		irq_set_noprobe(irq);
   249	
   250		return 0;
   251	}
   252	
   253	static const struct irq_domain_ops sp_intc_dm_ops = {
   254		.xlate = sp_intc_xlate_of,
   255		.map = sp_intc_irq_domain_map,
   256	};
   257	
   258	#ifdef CONFIG_OF
   259	static int sp_intc_irq_map(struct device_node *node, int i)
   260	{
   261		sp_intc.virq[i] = irq_of_parse_and_map(node, i);
   262		if (!sp_intc.virq[i]) {
   263			pr_err("%s: missed EXT_INT%d in DT\n", __func__, i);
   264			return -ENOENT;
   265		}
   266	
   267		pr_info("%s: EXT_INT%d = %d\n", __func__, i, sp_intc.virq[i]);
   268		irq_set_chained_handler_and_data(sp_intc.virq[i],
   269			sp_intc_handle_ext_cascaded, (void *)i);
   270	
   271		return 0;
   272	}
   273	
 > 274	int __init sp_intc_init_dt(
   275		struct device_node *node, struct device_node *parent)
   276	{
   277		void __iomem *base0, *base1;
   278	
   279		base0 = of_iomap(node, 0);
   280		if (!base0) {
   281			pr_err("unable to map sp-intc base 0\n");
   282			return -EINVAL;
   283		}
   284	
   285		base1 = of_iomap(node, 1);
   286		if (!base1) {
   287			pr_err("unable to map sp-intc base 1\n");
   288			return -EINVAL;
   289		}
   290	
   291		sp_intc.node = node;
   292	
   293		sp_intc_chip_init(base0, base1);
   294	
   295		sp_intc.domain = irq_domain_add_linear(node,
   296				SP_INTC_HWIRQ_MAX - SP_INTC_HWIRQ_MIN,
   297				&sp_intc_dm_ops, &sp_intc);
   298		if (!sp_intc.domain) {
   299			pr_err("%s: unable to create linear domain\n", __func__);
   300			return -EINVAL;
   301		}
   302	
   303		raw_spin_lock_init(&sp_intc.lock);
   304	
   305		if (parent) {
   306			/* secondary chained controller */
   307			if (sp_intc_irq_map(node, 0)) // EXT_INT0
   308				return -ENOENT;
   309	
   310			if (sp_intc_irq_map(node, 1)) // EXT_INT1
   311				return -ENOENT;
   312		} else {
   313			/* primary controller */
   314			set_handle_irq(sp_intc_handle_irq);
   315		}
   316	
   317		return 0;
   318	}
   319	IRQCHIP_DECLARE(sp_intc, "sunplus,sp7021-intc", sp_intc_init_dt);
   320	#endif
   321	

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0-DAY CI Kernel Test Service, Intel Corporation
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