linux-kernel - [RFC PATCH 4/8] scsi: ufs: deprecate 'freq-table-hz' property

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Message-Id: <20220219184224.44339-5-krzysztof.kozlowski@canonical.com>
Date:   Sat, 19 Feb 2022 19:42:20 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
To:     Alim Akhtar <alim.akhtar@...sung.com>,
        Avri Altman <avri.altman@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        Wei Xu <xuwei5@...ilicon.com>, Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Nishanth Menon <nm@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Chanho Park <chanho61.park@...sung.com>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Jan Kotas <jank@...ence.com>, linux-scsi@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: [RFC PATCH 4/8] scsi: ufs: deprecate 'freq-table-hz' property

The 'freq-table-hz' is not correct in DT schema, because '-hz' suffix
defines uint32 type, not an array.  Therefore deprecate 'freq-table-hz'
and use 'freq-table' instead.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
---
 drivers/scsi/ufs/ufshcd-pltfrm.c | 21 +++++++++++++--------
 1 file changed, 13 insertions(+), 8 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd-pltfrm.c b/drivers/scsi/ufs/ufshcd-pltfrm.c
index 87975d1a21c8..2b192477d158 100644
--- a/drivers/scsi/ufs/ufshcd-pltfrm.c
+++ b/drivers/scsi/ufs/ufshcd-pltfrm.c
@@ -47,8 +47,9 @@ static int ufshcd_parse_clock_info(struct ufs_hba *hba)
 	if (cnt <= 0)
 		goto out;
 
-	if (!of_get_property(np, "freq-table-hz", &len)) {
-		dev_info(dev, "freq-table-hz property not specified\n");
+	if (!of_get_property(np, "freq-table", &len) ||
+	    !of_get_property(np, "freq-table-hz", &len)) {
+		dev_info(dev, "freq-table property not specified\n");
 		goto out;
 	}
 
@@ -57,7 +58,7 @@ static int ufshcd_parse_clock_info(struct ufs_hba *hba)
 
 	sz = len / sizeof(*clkfreq);
 	if (sz != 2 * cnt) {
-		dev_err(dev, "%s len mismatch\n", "freq-table-hz");
+		dev_err(dev, "%s len mismatch\n", "freq-table");
 		ret = -EINVAL;
 		goto out;
 	}
@@ -69,12 +70,16 @@ static int ufshcd_parse_clock_info(struct ufs_hba *hba)
 		goto out;
 	}
 
-	ret = of_property_read_u32_array(np, "freq-table-hz",
+	ret = of_property_read_u32_array(np, "freq-table",
 			clkfreq, sz);
 	if (ret && (ret != -EINVAL)) {
-		dev_err(dev, "%s: error reading array %d\n",
-				"freq-table-hz", ret);
-		return ret;
+		ret = of_property_read_u32_array(np, "freq-table-hz",
+						 clkfreq, sz);
+		if (ret && (ret != -EINVAL)) {
+			dev_err(dev, "%s: error reading array %d\n",
+				"freq-table", ret);
+			return ret;
+		}
 	}
 
 	for (i = 0; i < sz; i += 2) {
@@ -99,7 +104,7 @@ static int ufshcd_parse_clock_info(struct ufs_hba *hba)
 
 		if (!strcmp(name, "ref_clk"))
 			clki->keep_link_active = true;
-		dev_dbg(dev, "%s: min %u max %u name %s\n", "freq-table-hz",
+		dev_dbg(dev, "%s: min %u max %u name %s\n", "freq-table",
 				clki->min_freq, clki->max_freq, clki->name);
 		list_add_tail(&clki->list, &hba->clk_list_head);
 	}
-- 
2.32.0