From patchwork Thu Aug 15 20:15:42 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Judith Mendez X-Patchwork-Id: 819930 Received: from lelv0142.ext.ti.com (lelv0142.ext.ti.com [198.47.23.249]) (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 96E73BA53; Thu, 15 Aug 2024 21:08:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.47.23.249 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723756115; cv=none; b=Fq5X9nSOEOSL3gHy6qBELSxCoDV+F7Xfk5CiR3tD/9sWjwY60iohphOld4cLwLH2YSLNK8FYhtt7SbaHpyL1MQ9B0q3yTu5CKiFnRnLo/b4So9oAZ92ayyLfxr2dfl3Pc91/kN7aRKgJ34NWgTLrZYJhFFSHvvlkfurMz8L52vs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723756115; c=relaxed/simple; bh=GLiguvi+Oc7qhZf5JLKTVp2qI4hQHEY+a2IAsZDCO2Q=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=qfgZTBh8yTXdoHM4b8LOmYnJN3zvjcNnoRDhuNlF2fEtc186hAtrBqS/sV7LXM+e4bD7+vI4dqHOaBSBz3hquADQrUbULz4k6IEoxXCG71sHLVaQ/BJCHRi/hDPaIVRkpBNYReywmfJrOEotRjHxwO5QTyjlfQVxuuh7+dHOWgs= 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=Qa2/50BP; arc=none smtp.client-ip=198.47.23.249 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="Qa2/50BP" Received: from lelv0265.itg.ti.com ([10.180.67.224]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id 47FKFgqm117132; Thu, 15 Aug 2024 15:15:42 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1723752942; bh=YpGC73jsmUszzsJBGs09ehK2XNm+XOZJx7psclHG2co=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=Qa2/50BP9eCZCL/UvxXKSvbpxd9Sv5awwHgTdu8n+b9XFil/tNpeZ1j+sEdifoKrA w6GrwDUQoSgbiXOqYGNqoxynJFsoRd2DWXgViYfmbpdLlvNFpZvmoLkErRWetXtjeb 2IBP59Gb7nGFPvGGnGvwh0tyFh5+qGz5YtHGGkWU= Received: from DLEE103.ent.ti.com (dlee103.ent.ti.com [157.170.170.33]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 47FKFg9F024293 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 15 Aug 2024 15:15:42 -0500 Received: from DLEE115.ent.ti.com (157.170.170.26) by DLEE103.ent.ti.com (157.170.170.33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Thu, 15 Aug 2024 15:15:42 -0500 Received: from lelvsmtp6.itg.ti.com (10.180.75.249) by DLEE115.ent.ti.com (157.170.170.26) 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; Thu, 15 Aug 2024 15:15:42 -0500 Received: from judy-hp.dhcp.ti.com (judy-hp.dhcp.ti.com [128.247.81.105]) by lelvsmtp6.itg.ti.com (8.15.2/8.15.2) with ESMTP id 47FKFgok018925; Thu, 15 Aug 2024 15:15:42 -0500 From: Judith Mendez To: Ulf Hansson CC: Adrian Hunter , , Subject: [PATCH 2/2] mmc: sdhci_am654: Add tuning debug prints Date: Thu, 15 Aug 2024 15:15:42 -0500 Message-ID: <20240815201542.421653-3-jm@ti.com> X-Mailer: git-send-email 2.46.0 In-Reply-To: <20240815201542.421653-1-jm@ti.com> References: <20240815201542.421653-1-jm@ti.com> Precedence: bulk X-Mailing-List: linux-mmc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Add debug prints to tuning algorithm for debugging. Signed-off-by: Judith Mendez --- drivers/mmc/host/sdhci_am654.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/mmc/host/sdhci_am654.c b/drivers/mmc/host/sdhci_am654.c index c3d485bd4d553..a909f8de0eabe 100644 --- a/drivers/mmc/host/sdhci_am654.c +++ b/drivers/mmc/host/sdhci_am654.c @@ -457,11 +457,13 @@ static u32 sdhci_am654_calculate_itap(struct sdhci_host *host, struct window if (!num_fails) { /* Retry tuning */ + dev_err(dev, "No failing region found, retry tuning\n"); return -1; } if (fail_window->length == ITAPDLY_LENGTH) { /* Retry tuning */ + dev_err(dev, "No passing ITAPDLY, retry tuning\n"); return -1; } @@ -505,6 +507,7 @@ static int sdhci_am654_platform_execute_tuning(struct sdhci_host *host, struct sdhci_am654_data *sdhci_am654 = sdhci_pltfm_priv(pltfm_host); unsigned char timing = host->mmc->ios.timing; struct window fail_window[ITAPDLY_LENGTH]; + struct device *dev = mmc_dev(host->mmc); u8 curr_pass, itap; u8 fail_index = 0; u8 prev_pass = 1; @@ -542,12 +545,14 @@ static int sdhci_am654_platform_execute_tuning(struct sdhci_host *host, if (ret >= 0) { itap = ret; + dev_dbg(dev, "Final ITAPDLY=%d\n", itap); sdhci_am654_write_itapdly(sdhci_am654, itap, sdhci_am654->itap_del_ena[timing]); } else { if (sdhci_am654->tuning_loop < RETRY_TUNING_MAX) { sdhci_am654->tuning_loop++; sdhci_am654_platform_execute_tuning(host, opcode); } else { + dev_err(dev, "Failed to find ITAPDLY, fail tuning\n"); return -1; } }