From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Cousson, Benoit" Subject: [PATCH] ARM: OMAP: irqs: Fix NR_IRQS value to handle PRCM interrupts Date: Tue, 28 Feb 2012 14:10:09 +0100 Message-ID: <4F4CD231.4030709@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit Return-path: Received: from comal.ext.ti.com ([198.47.26.152]:43701 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755950Ab2B1NKX (ORCPT ); Tue, 28 Feb 2012 08:10:23 -0500 Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: tony Lindgren Cc: linux-omap , "linux-arm-kernel@lists.infradead.org" , "Nayak, Rajendra" The following commit: 2f31b51659c2d8315ea2888ba5b93076febe672b Author: Tero Kristo Date: Fri Dec 16 14:37:00 2011 -0700 ARM: OMAP4: PRM: use PRCM interrupt handler introduced the PRCM interrupt handler and thus the need for 64 more interrupts. Since SPARSE_IRQ is still not fully functional on OMAP, the NR_IRQS needs to be updated to avoid the failure that happen during irq_alloc_descs call inside the PRCM driver: [ 0.208221] PRCM: failed to allocate irq descs: -12 Later the mux framework is then unable to request an IRQ from the PRCM interrupt handler. [ 1.802795] mux: Failed to setup hwmod io irq -22 Fix that by adding 64 more interrupts for OMAP2PLUS config. Signed-off-by: Benoit Cousson Cc: Tero Kristo --- Tony, This patch should probably go for the next -rc if possible. Thanks, Benoit arch/arm/plat-omap/include/plat/irqs.h | 10 +++++++++- 1 files changed, 9 insertions(+), 1 deletions(-) diff --git a/arch/arm/plat-omap/include/plat/irqs.h b/arch/arm/plat-omap/include/plat/irqs.h index 2efd645..37bbbbb 100644 --- a/arch/arm/plat-omap/include/plat/irqs.h +++ b/arch/arm/plat-omap/include/plat/irqs.h @@ -428,8 +428,16 @@ #define OMAP_GPMC_NR_IRQS 8 #define OMAP_GPMC_IRQ_END (OMAP_GPMC_IRQ_BASE + OMAP_GPMC_NR_IRQS) +/* PRCM IRQ handler */ +#ifdef CONFIG_ARCH_OMAP2PLUS +#define OMAP_PRCM_IRQ_BASE (OMAP_GPMC_IRQ_END) +#define OMAP_PRCM_NR_IRQS 64 +#define OMAP_PRCM_IRQ_END (OMAP_PRCM_IRQ_BASE + OMAP_PRCM_NR_IRQS) +#else +#define OMAP_PRCM_IRQ_END OMAP_GPMC_IRQ_END +#endif -#define NR_IRQS OMAP_GPMC_IRQ_END +#define NR_IRQS OMAP_PRCM_IRQ_END #define OMAP_IRQ_BIT(irq) (1 << ((irq) % 32)) -- 1.7.0.4 From mboxrd@z Thu Jan 1 00:00:00 1970 From: b-cousson@ti.com (Cousson, Benoit) Date: Tue, 28 Feb 2012 14:10:09 +0100 Subject: [PATCH] ARM: OMAP: irqs: Fix NR_IRQS value to handle PRCM interrupts Message-ID: <4F4CD231.4030709@ti.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org The following commit: 2f31b51659c2d8315ea2888ba5b93076febe672b Author: Tero Kristo Date: Fri Dec 16 14:37:00 2011 -0700 ARM: OMAP4: PRM: use PRCM interrupt handler introduced the PRCM interrupt handler and thus the need for 64 more interrupts. Since SPARSE_IRQ is still not fully functional on OMAP, the NR_IRQS needs to be updated to avoid the failure that happen during irq_alloc_descs call inside the PRCM driver: [ 0.208221] PRCM: failed to allocate irq descs: -12 Later the mux framework is then unable to request an IRQ from the PRCM interrupt handler. [ 1.802795] mux: Failed to setup hwmod io irq -22 Fix that by adding 64 more interrupts for OMAP2PLUS config. Signed-off-by: Benoit Cousson Cc: Tero Kristo --- Tony, This patch should probably go for the next -rc if possible. Thanks, Benoit arch/arm/plat-omap/include/plat/irqs.h | 10 +++++++++- 1 files changed, 9 insertions(+), 1 deletions(-) diff --git a/arch/arm/plat-omap/include/plat/irqs.h b/arch/arm/plat-omap/include/plat/irqs.h index 2efd645..37bbbbb 100644 --- a/arch/arm/plat-omap/include/plat/irqs.h +++ b/arch/arm/plat-omap/include/plat/irqs.h @@ -428,8 +428,16 @@ #define OMAP_GPMC_NR_IRQS 8 #define OMAP_GPMC_IRQ_END (OMAP_GPMC_IRQ_BASE + OMAP_GPMC_NR_IRQS) +/* PRCM IRQ handler */ +#ifdef CONFIG_ARCH_OMAP2PLUS +#define OMAP_PRCM_IRQ_BASE (OMAP_GPMC_IRQ_END) +#define OMAP_PRCM_NR_IRQS 64 +#define OMAP_PRCM_IRQ_END (OMAP_PRCM_IRQ_BASE + OMAP_PRCM_NR_IRQS) +#else +#define OMAP_PRCM_IRQ_END OMAP_GPMC_IRQ_END +#endif -#define NR_IRQS OMAP_GPMC_IRQ_END +#define NR_IRQS OMAP_PRCM_IRQ_END #define OMAP_IRQ_BIT(irq) (1 << ((irq) % 32)) -- 1.7.0.4