From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CCDCF269839; Tue, 8 Apr 2025 12:43:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744116203; cv=none; b=MG+tFxr10vBJrVYJKhu1FsMANI3QlLXxFUNRCSKcIPlP0mz5BpkeGpsD8UZAFid6Fg6ZMGd2iUfotSIJB+RuYJYy4lcidc91xd1iUBHspycesgBAH35Hgl8x+NcRDl8paDBixhaV1lk2NysM4tFwZNOozIVdiw7NW+D3Ui9rnVY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744116203; c=relaxed/simple; bh=TbMD1O2bNwuA0GuAdVKTOM4zy9X+GYomprMBwXglD2s=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=WfaQxQ3HcSWPWjSSeabMT4t7qa3x13LIp8ov2OPEF34hrHMApHP4AB52+kkepElwB56bKr+TYpRy1QEPXqvyGJV3AkuNAGITZdFJUv1fPEI+wkocUlNPPfokw4j8x09dXBmV6hCaNjNDYybkK3UwY1bPXephQNyQFupE7Zb6O78= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=URFrSC92; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="URFrSC92" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5A3D3C4CEE5; Tue, 8 Apr 2025 12:43:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1744116203; bh=TbMD1O2bNwuA0GuAdVKTOM4zy9X+GYomprMBwXglD2s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=URFrSC92ZMa6YKY4y4xNTg0g2sLz5dSg56t7pFnxVFMfOvRD31FJt0dHjzaAN8mL8 ox9nLQuQIhQzUooaza2VXlAzkBuKfTILrrnkAYBS7A+2FeDiFB5RJlXI1fBDRIKwGX A6mGYhLnh5ayfsp3dDZnckIZioXeiNXO+DFFy15o= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, zuoqian , Dan Carpenter , Viresh Kumar , Sasha Levin Subject: [PATCH 6.12 003/423] cpufreq: scpi: compare kHz instead of Hz Date: Tue, 8 Apr 2025 12:45:29 +0200 Message-ID: <20250408104845.769701489@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250408104845.675475678@linuxfoundation.org> References: <20250408104845.675475678@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: zuoqian [ Upstream commit 4742da9774a416908ef8e3916164192c15c0e2d1 ] The CPU rate from clk_get_rate() may not be divisible by 1000 (e.g., 133333333). But the rate calculated from frequency(kHz) is always divisible by 1000 (e.g., 133333000). Comparing the rate causes a warning during CPU scaling: "cpufreq: __target_index: Failed to change cpu frequency: -5". When we choose to compare kHz here, the issue does not occur. Fixes: 343a8d17fa8d ("cpufreq: scpi: remove arm_big_little dependency") Signed-off-by: zuoqian Reviewed-by: Dan Carpenter Signed-off-by: Viresh Kumar Signed-off-by: Sasha Levin --- drivers/cpufreq/scpi-cpufreq.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/cpufreq/scpi-cpufreq.c b/drivers/cpufreq/scpi-cpufreq.c index 8d73e6e8be2a5..f2d913a91be9e 100644 --- a/drivers/cpufreq/scpi-cpufreq.c +++ b/drivers/cpufreq/scpi-cpufreq.c @@ -39,8 +39,9 @@ static unsigned int scpi_cpufreq_get_rate(unsigned int cpu) static int scpi_cpufreq_set_target(struct cpufreq_policy *policy, unsigned int index) { - u64 rate = policy->freq_table[index].frequency * 1000; + unsigned long freq_khz = policy->freq_table[index].frequency; struct scpi_data *priv = policy->driver_data; + unsigned long rate = freq_khz * 1000; int ret; ret = clk_set_rate(priv->clk, rate); @@ -48,7 +49,7 @@ scpi_cpufreq_set_target(struct cpufreq_policy *policy, unsigned int index) if (ret) return ret; - if (clk_get_rate(priv->clk) != rate) + if (clk_get_rate(priv->clk) / 1000 != freq_khz) return -EIO; return 0; -- 2.39.5