From: Grant Likely <grant.likely@secretlab.ca>
To: "Cousson, Benoit" <b-cousson@ti.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
devicetree-discuss@lists.ozlabs.org,
linux-kernel@vger.kernel.org,
Rob Herring <rob.herring@calxeda.com>,
Milton Miller <miltonm@bga.com>,
Thomas Gleixner <tglx@linutronix.de>,
linuxppc-dev@lists.ozlabs.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v3 13/25] irq_domain: Remove 'new' irq_domain in favour of the ppc one
Date: Fri, 3 Feb 2012 09:42:23 -0700 [thread overview]
Message-ID: <20120203164223.GB3981@ponder.secretlab.ca> (raw)
In-Reply-To: <4F2BF3A9.8030200@ti.com>
On Fri, Feb 03, 2012 at 03:48:09PM +0100, Cousson, Benoit wrote:
> Hi Grant,
>
> I finally had the time to rebase most of the OMAP3 and OMAP4 DT
> patches on your latest irq_domain series and found a couple of
> minors regressions that breaks OMAP3 boot.
>
> On 1/27/2012 10:36 PM, Grant Likely wrote:
>
> [...]
>
> >diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c
> >index e04e04dd..aab236f 100644
> >--- a/drivers/mfd/twl-core.c
> >+++ b/drivers/mfd/twl-core.c
> >@@ -263,8 +263,6 @@ struct twl_client {
> >
> > static struct twl_client twl_modules[TWL_NUM_SLAVES];
> >
> >-static struct irq_domain domain;
> >-
> > /* mapping the module id to slave id and base address */
> > struct twl_mapping {
> > unsigned char sid; /* Slave ID */
> >@@ -1225,14 +1223,8 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
> >
> > pdata->irq_base = status;
> > pdata->irq_end = pdata->irq_base + nr_irqs;
> >-
> >- domain.irq_base = pdata->irq_base;
> >- domain.nr_irq = nr_irqs;
> >-#ifdef CONFIG_OF_IRQ
> >- domain.of_node = of_node_get(node);
> >- domain.ops =&irq_domain_simple_ops;
> >-#endif
> >- irq_domain_add(&domain);
> >+ irq_domain_add_legacy(node, nr_irqs, pdata->irq_base, 0,
> >+ &irq_domain_simple_ops);
>
> This commit cannot build due to the missing last parameter.
>
> And in fact you fixed that in the next commit (#14), but the will
> break git bisect and anyway that fix does not really belong to this
> commit.
>
> [PATCH v3 14/25] irq_domain: Remove irq_domain_add_simple()
>
> irq_domain_add_legacy(node, nr_irqs, pdata->irq_base, 0,
> - &irq_domain_simple_ops);
> + &irq_domain_simple_ops, NULL);
Good catch, thanks. I'll update the series to fix that.
>
>
> Moreover, it looks like this new irq_domain code is checking the
> number of hwirq and is not as lazy as the previous one :-)
>
> Because of that and because of the wrong number of IRQs I put for
> the twl4030 :-(, it does not handle properly the children of the
> twl4030 now and print a big warning at boot time due to the
> following check.
>
> WARN_ON(hwirq < first_hwirq || hwirq >= first_hwirq + size)
Good! The warning is doing it's job. :-)
> In fact 8 was just the number for the core functionality, but that
> chip does have some other interrupts for sub function like GPIOs and
> power events.
Okay, I'll add this patch to the series before patch 13.
>
> With the following fix, it works fine.
>
> Regards,
> Benoit
>
>
> ---
> From 12781619d2ab8d6d724acabc6873954f0f9f4347 Mon Sep 17 00:00:00 2001
> From: Benoit Cousson <b-cousson@ti.com>
> Date: Fri, 3 Feb 2012 14:58:17 +0100
> Subject: [PATCH] mfd: twl-core.c: Fix the number of interrupts
> managed by twl4030
>
> TWL4030 does handle 3 different interrupts ranges: 8 for the core, 8
> for the power events and 18 for the GPIOs.
>
> Change the total number of interrupts managed by TWL4030 from 8 to 34.
>
> Signed-off-by: Benoit Cousson <b-cousson@ti.com>
> ---
> drivers/mfd/twl-core.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c
> index e63b408..66f9bff 100644
> --- a/drivers/mfd/twl-core.c
> +++ b/drivers/mfd/twl-core.c
> @@ -149,7 +149,7 @@
>
> #define TWL_MODULE_LAST TWL4030_MODULE_LAST
>
> -#define TWL4030_NR_IRQS 8
> +#define TWL4030_NR_IRQS 34 /* core:8, power:8, gpio: 18 */
> #define TWL6030_NR_IRQS 20
>
> /* Base Address defns for twl4030_map[] */
> --
> 1.7.0.4
>
>
>
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2012-02-03 16:42 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-27 21:35 [PATCH v3 00/25] irq_domain generalization and refinement Grant Likely
2012-01-27 21:35 ` [PATCH v3 01/25] irq_domain: add documentation and MAINTAINERS entry Grant Likely
2012-01-28 18:23 ` Randy Dunlap
2012-01-27 21:35 ` [PATCH v3 02/25] dt: Make irqdomain less verbose Grant Likely
2012-01-27 21:35 ` [PATCH v3 03/25] irq_domain: Make irq_domain structure match powerpc's irq_host Grant Likely
2012-01-27 21:35 ` [PATCH v3 04/25] irq_domain: convert microblaze from irq_host to irq_domain Grant Likely
2012-01-27 21:35 ` [PATCH v3 05/25] irq_domain/powerpc: Use common irq_domain structure instead of irq_host Grant Likely
2012-01-27 21:36 ` [PATCH v3 06/25] irq_domain/powerpc: eliminate irq_map; use irq_alloc_desc() instead Grant Likely
2012-01-27 21:36 ` [PATCH v3 07/25] irq_domain/powerpc: Eliminate virq_is_host() Grant Likely
2012-01-27 21:36 ` [PATCH v3 08/25] irq_domain: Move irq_domain code from powerpc to kernel/irq Grant Likely
2012-01-27 21:36 ` [PATCH v3 09/25] irqdomain: remove NO_IRQ from irq domain code Grant Likely
2012-01-27 21:36 ` [PATCH v3 10/25] irq_domain: Remove references to old irq_host names Grant Likely
2012-01-27 21:36 ` [PATCH v3 11/25] irq_domain: Replace irq_alloc_host() with revmap-specific initializers Grant Likely
2012-01-27 21:36 ` [PATCH v3 12/25] irq_domain: Add support for base irq and hwirq in legacy mappings Grant Likely
2012-01-27 21:36 ` [PATCH v3 13/25] irq_domain: Remove 'new' irq_domain in favour of the ppc one Grant Likely
2012-02-03 14:48 ` Cousson, Benoit
2012-02-03 16:42 ` Grant Likely [this message]
2012-01-27 21:36 ` [PATCH v3 14/25] irq_domain: Remove irq_domain_add_simple() Grant Likely
2012-01-31 12:45 ` Shawn Guo
2012-01-31 13:15 ` Rob Herring
2012-01-31 13:58 ` Shawn Guo
2012-02-01 0:08 ` Grant Likely
2012-02-01 5:46 ` [PATCH] irq_domain: fix the irq number of imx5 tzic Shawn Guo
2012-02-02 4:58 ` Grant Likely
2012-01-27 21:36 ` [PATCH v3 15/25] irq_domain: Create common xlate functions that device drivers can use Grant Likely
2012-01-27 21:36 ` [PATCH v3 16/25] irq_domain: constify irq_domain_ops Grant Likely
2012-01-27 21:36 ` [PATCH v3 17/25] irq_domain/c6x: Convert c6x to use generic irq_domain support Grant Likely
2012-01-27 21:36 ` [PATCH v3 18/25] irq_domain/c6x: constify irq_domain structures Grant Likely
2012-01-27 21:36 ` [PATCH v3 19/25] irq_domain/c6x: Use library of xlate functions Grant Likely
2012-01-27 21:36 ` [PATCH v3 20/25] irq_domain/powerpc: constify irq_domain_ops Grant Likely
2012-01-27 21:36 ` [PATCH v3 21/25] irqdomain/powerpc: Replace custom xlate functions with library functions Grant Likely
2012-02-06 5:22 ` Michael Neuling
2012-02-06 6:00 ` Grant Likely
2012-01-27 21:36 ` [PATCH v3 22/25] irq_domain/x86: Convert x86 (embedded) to use common irq_domain Grant Likely
2012-01-28 16:44 ` Sebastian Andrzej Siewior
2012-01-29 0:35 ` Grant Likely
2012-01-29 0:39 ` Grant Likely
2012-01-30 19:58 ` Grant Likely
2012-02-01 14:17 ` Sebastian Andrzej Siewior
2012-02-01 18:06 ` Grant Likely
2012-02-23 19:56 ` Grant Likely
2012-02-23 21:22 ` Sebastian Andrzej Siewior
2012-02-23 21:39 ` Grant Likely
2012-01-27 21:36 ` [PATCH v3 23/25] irq_domain: Include hwirq number in /proc/interrupts Grant Likely
2012-01-27 21:36 ` [PATCH v3 24/25] irq_domain: remove "hint" when allocating irq numbers Grant Likely
2012-02-07 18:07 ` Nicolas Ferre
2012-02-15 15:04 ` Nicolas Ferre
2012-02-15 20:21 ` Grant Likely
2012-02-15 21:50 ` Shawn Guo
2012-02-16 5:32 ` Grant Likely
2012-02-16 6:03 ` Shawn Guo
2012-01-27 21:36 ` [PATCH v3 25/25] irq_domain: mostly eliminate slow-path revmap lookups Grant Likely
2012-02-15 16:36 ` Nicolas Ferre
2012-02-15 20:29 ` Grant Likely
2012-01-28 18:38 ` [PATCH v3 00/25] irq_domain generalization and refinement Rob Herring
2012-01-31 4:53 ` Olof Johansson
2012-02-01 0:07 ` Grant Likely
2012-02-04 22:17 ` Russell King - ARM Linux
2012-02-04 22:31 ` Russell King - ARM Linux
2012-02-05 1:38 ` Tony Lindgren
2012-02-05 16:13 ` Russell King - ARM Linux
2012-02-07 15:26 ` Mark Brown
2012-02-15 20:33 ` Grant Likely
2012-02-05 0:01 ` Benjamin Herrenschmidt
2012-02-06 0:51 ` Rob Herring
2012-02-06 5:56 ` Grant Likely
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