From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Zijlstra Subject: [PATCH v2 34/44] cpuidle,omap3: Use WFI for omap3_pm_idle() Date: Mon, 19 Sep 2022 12:00:13 +0200 Message-ID: <20220919101522.640861846@infradead.org> References: <20220919095939.761690562@infradead.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: DKIM-Filter: OpenDKIM Filter v2.11.0 smtp2.osuosl.org E6BBE416FC DKIM-Filter: OpenDKIM Filter v2.11.0 smtp2.osuosl.org 8B38E41700 DKIM-Filter: OpenDKIM Filter v2.11.0 smtp1.osuosl.org B5F9C83FC8 DKIM-Filter: OpenDKIM Filter v2.11.0 smtp1.osuosl.org F163084068 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Content-Type:MIME-Version:References: Subject:Cc:To:From:Date:Message-ID:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:In-Reply-To; bh=Jv9RVwj6ep0TNO3s8uQfW2HtHTmBFm30lOC4tMkhMhE=; b=I0EhwdPmpjSZk5ja964YpGAeCk C45fO8EM2mFiC3DqJ/DLybVkyafkKHKl3HVER9ZEbihKzLYNqVeFyddpeJHRtyR3Hqt6oLKSGVGjW vqS2M9zIsxV8gsOfD7+XCbU9PTw5axIq4H/pb8qDwFBvMyaPepi+uWsHsWNlsWS7xrTM/BPK4YgD3 Dc5KuCRzAzK3XGO0qZfcsXuFfFJ9wq6bMfse+Cfxnca5S5lUCl4E/cwiPRmLCQSUW7X2HmRLeBpql t7ZytyFf5zRqKJC9wJ/YYZXZRdxRenNHmV2zQCP0YUncXkY5SvjZeThv7pYpsP5HwzDFYicMtgcd9 GoTez4OA==; List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" To: peterz@infradead.org Cc: juri.lelli@redhat.com, rafael@kernel.org, catalin.marinas@arm.com, linus.walleij@linaro.org, bsegall@google.com, guoren@kernel.org, pavel@ucw.cz, agordeev@linux.ibm.com, linux-arch@vger.kernel.org, vincent.guittot@linaro.org, mpe@ellerman.id.au, chenhuacai@kernel.org, christophe.leroy@csgroup.eu, linux-acpi@vger.kernel.org, agross@kernel.org, geert@linux-m68k.org, linux-imx@nxp.com, vgupta@kernel.org, mattst88@gmail.com, mturquette@baylibre.com, sammy@sammy.net, pmladek@suse.com, linux-pm@vger.kernel.org, Sascha Hauer , linux-um@lists.infradead.org, npiggin@gmail.com, tglx@linutronix.de, linux-omap@vger.kernel.org, dietmar.eggemann@arm.com, andreyknvl@gmail.com, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, senozhatsky@chromium.org, svens@linux.ibm.com, jolsa@kernel.org, tj@kernel.org, Andrew Morton arch_cpu_idle() is a very simple idle interface and exposes only a single idle state and is expected to not require RCU and not do any tracing/instrumentation. As such, omap_sram_idle() is not a valid implementation. Replace it with the simple (shallow) omap3_do_wfi() call. Leaving the more complicated idle states for the cpuidle driver. Signed-off-by: Peter Zijlstra (Intel) Acked-by: Tony Lindgren --- arch/arm/mach-omap2/pm34xx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -294,7 +294,7 @@ static void omap3_pm_idle(void) if (omap_irq_pending()) return; - omap_sram_idle(); + omap3_do_wfi(); } #ifdef CONFIG_SUSPEND