From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Zijlstra Subject: [PATCH 33/36] cpuidle,omap3: Use WFI for omap3_pm_idle() Date: Wed, 08 Jun 2022 16:27:56 +0200 Message-ID: <20220608144518.010587032@infradead.org> References: <20220608142723.103523089@infradead.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; 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=72Sb3LM19KDQn37emviwOKsQWcEROOYn6vEWI6g4O0g=; b=EIStTNEvIWCOhCtVS6i/K7y72k Z2/y8QVivxbrQMzv70rV/xYI1TqoeKXswIk5VnUpw0+4RhgOORQAEqSaWWFcpGN/Ozze52Ug5i0sI TleRT/9YHz6wiGFbGNdRNWgltUsVvJQ/VjZwME/1FoaZpc7a2ndwOU/eD8GtMnigWvtYOtoQbNZbT YAEGoBE1YPDvgKLkfYqGdKYI7530FqsneWIVYclJ5CEXvPE38a9eC2TbKb0SOYjj+vs7v40/yoQE7 k4NN68jbT7q4/PIwEPV2vzemhXOOO98Uy9H+Lq6ErhVJIdH1jDJG5a7zOOPhARBO9XvArNFyyMFwC hXw9kkBw==; 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, benh@kernel.crashing.org, 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, linux-acpi@vger.kernel.org, agross@kernel.org, geert@linux-m68k.org, linux-imx@nxp.com, catalin.marinas@arm.com, xen-devel@lists.xenproject.org, mattst88@gmail.com, mturquette@baylibre.com, sammy@sammy.net, pmladek@suse.com, linux-pm@vger.kernel.org, jiangshanlai@gmail.com, Sascha Hauer , linux-um@lists.infradead.org, acme@kernel.org, tglx@linutronix.de, linux-omap@vger.kernel.org, dietmar.eggemann@arm.com, rth@twiddle.net, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, senozhatsky@chromium.org, svens@linux.ibm.com, jolsa@kernel.org, paul 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) --- 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