From patchwork Mon Sep 2 09:21:35 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dhruva Gole X-Patchwork-Id: 13786944 X-Patchwork-Delegate: viresh.linux@gmail.com Received: from fllv0015.ext.ti.com (fllv0015.ext.ti.com [198.47.19.141]) (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 11A2C1C2DCE; Mon, 2 Sep 2024 09:21:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.47.19.141 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725268921; cv=none; b=cPggr6x+0Piga/+WtGEnd1SbXPnuvWnfrQAV3tQhE77UYAHCPvxFSyTT6PpRLTpjMjuC01kL+f6CROpMQVub8P+AOcjmL+Exv8EqvV1FDEODOjwPPaJG9UNJoRj/Z+Gl6chWrJUsXMClbyiBv520VbrT7lZtrsuEkVge6IAycpg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725268921; c=relaxed/simple; bh=Zgwy2BubG1EWnEAVj32BYQf+bJia6D8EG0ogAUOM+4g=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=REXQaUpfzOVMpJC6vJTofurwCVgn0TEN99j2tVXQPu7iQvC/x0u1lZ1/23uH/ZY5iXP7LnJQHSKKmbS3zzpO+S2PWoP/O22nh3Nef+c80ZpV0YFfsASdddbWz+rOOg/NuU/utZHOFtE1DsfJbVo2DAP8MA5I2xgPSUZsbpU7TwE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com; spf=pass smtp.mailfrom=ti.com; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b=dZOv8rbu; arc=none smtp.client-ip=198.47.19.141 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ti.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="dZOv8rbu" Received: from lelv0266.itg.ti.com ([10.180.67.225]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 4829LsND010209; Mon, 2 Sep 2024 04:21:54 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1725268914; bh=4XY6mWtzGjvu3ZEih9CjkESASisTpY3rzk2pXbnSDOo=; h=From:To:CC:Subject:Date; b=dZOv8rbunHurN9gclDV48Eg+pRH2pI1Q2X7xN6wxYH8Q/37QGH1A+7UFlyuTbJ+kM zUhhplAtB9XNfHW0Vy9c3T/IKW52x7DBKfPCqySP6PDXStnbXXUSUhorn9FhZ7yGBW LCC8xOWIRgLMer43AbWW8RfpYXvZtLkyEEI2po4g= Received: from DFLE104.ent.ti.com (dfle104.ent.ti.com [10.64.6.25]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTP id 4829LsQS031681; Mon, 2 Sep 2024 04:21:54 -0500 Received: from DFLE108.ent.ti.com (10.64.6.29) by DFLE104.ent.ti.com (10.64.6.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Mon, 2 Sep 2024 04:21:53 -0500 Received: from lelvsmtp6.itg.ti.com (10.180.75.249) by DFLE108.ent.ti.com (10.64.6.29) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Mon, 2 Sep 2024 04:21:54 -0500 Received: from lcpd911.dhcp.ti.com (lcpd911.dhcp.ti.com [172.24.227.68]) by lelvsmtp6.itg.ti.com (8.15.2/8.15.2) with ESMTP id 4829Lo2A092500; Mon, 2 Sep 2024 04:21:51 -0500 From: Dhruva Gole To: , CC: , , Dhruva Gole , Nishanth Menon , Vignesh Raghavendra , Vibhore Vardhan , Bryan Brattlof Subject: [PATCH] cpufreq: ti-cpufreq: Use socinfo to get revision in AM62 family Date: Mon, 2 Sep 2024 14:51:35 +0530 Message-ID: <20240902092135.2826470-1-d-gole@ti.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 In the AM62x, AM62Ax, and AM62Px devices, we already have the revision info within the k3-socinfo driver. Hence, re-use this information from there instead of re using the offset for 2 drivers trying to get the same information ie. revision. Signed-off-by: Dhruva Gole --- Hi, This patch depends on [1] and if someone wants to test, can use my github branch [2]. I was able to test this on SK-AM625 [3]. [1] https://lore.kernel.org/linux-arm-kernel/20240828131915.3198081-1-nm@ti.com/ [2] https://github.com/DhruvaG2000/v-linux/tree/ti-cpufreq-revision-fix [3] https://gist.github.com/DhruvaG2000/d0c360b0bd7e43d0fd28cfe3eab941d2 Cc: Nishanth Menon Cc: Vignesh Raghavendra Cc: Vibhore Vardhan Cc: Bryan Brattlof --- drivers/cpufreq/ti-cpufreq.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) base-commit: ecc768a84f0b8e631986f9ade3118fa37852fef0 diff --git a/drivers/cpufreq/ti-cpufreq.c b/drivers/cpufreq/ti-cpufreq.c index 804329e81eb8..ba621ce1cdda 100644 --- a/drivers/cpufreq/ti-cpufreq.c +++ b/drivers/cpufreq/ti-cpufreq.c @@ -16,6 +16,7 @@ #include #include #include +#include #define REVISION_MASK 0xF #define REVISION_SHIFT 28 @@ -303,6 +304,13 @@ static struct ti_cpufreq_soc_data am3517_soc_data = { .quirks = TI_QUIRK_SYSCON_MAY_BE_MISSING, }; +static const struct soc_device_attribute k3_cpufreq_soc[] = { + { .family = "AM62X", .revision = "SR1.0" }, + { .family = "AM62AX", .revision = "SR1.0" }, + { .family = "AM62PX", .revision = "SR1.0" }, + { /* sentinel */ } +}; + static struct ti_cpufreq_soc_data am625_soc_data = { .efuse_xlate = am625_efuse_xlate, .efuse_offset = 0x0018, @@ -384,6 +392,16 @@ static int ti_cpufreq_get_rev(struct ti_cpufreq_data *opp_data, struct device *dev = opp_data->cpu_dev; u32 revision; int ret; + if (soc_device_match(k3_cpufreq_soc)) { + /* + * Since the SR is 1.0, hard code the revision_value as + * 0x1 here. This way we avoid re using the same register + * that is giving us required information inside socinfo + * anyway. + */ + *revision_value = 0x1; + goto done; + } ret = regmap_read(opp_data->syscon, opp_data->soc_data->rev_offset, &revision); @@ -406,6 +424,7 @@ static int ti_cpufreq_get_rev(struct ti_cpufreq_data *opp_data, *revision_value = BIT((revision >> REVISION_SHIFT) & REVISION_MASK); +done: return 0; }