RE: [PATCH v2 09/15] scsi: ufs: deprecate 'freq-table-hz' property

[Alim Akhtar]

Hi Krzysztof

>-----Original Message-----
>From: Krzysztof Kozlowski [mailto:krzysztof.kozlowski@xxxxxxxxxxxxx]
>Sent: Tuesday, February 22, 2022 8:29 PM
>To: Alim Akhtar <alim.akhtar@xxxxxxxxxxx>; Avri Altman
><avri.altman@xxxxxxx>; Rob Herring <robh+dt@xxxxxxxxxx>; Krzysztof
>Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx>; Andy Gross
><agross@xxxxxxxxxx>; Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>; Wei
>Xu <xuwei5@xxxxxxxxxxxxx>; Nishanth Menon <nm@xxxxxx>; Vignesh
>Raghavendra <vigneshr@xxxxxx>; Tero Kristo <kristo@xxxxxxxxxx>; James E.J.
>Bottomley <jejb@xxxxxxxxxxxxx>; Martin K. Petersen
><martin.petersen@xxxxxxxxxx>; Jan Kotas <jank@xxxxxxxxxxx>; Li Wei
><liwei213@xxxxxxxxxx>; Stanley Chu <stanley.chu@xxxxxxxxxxxx>; Yaniv
>Gardi <ygardi@xxxxxxxxxxxxxx>; linux-scsi@xxxxxxxxxxxxxxx;
>devicetree@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; linux-arm-
>msm@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; linux-samsung-
>soc@xxxxxxxxxxxxxxx; linux-mediatek@xxxxxxxxxxxxxxxxxxx
>Subject: [PATCH v2 09/15] 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.
>
May be once all the dts change migrate to using 'freq-table', just remove
'freq-table-hz' from driver.

>Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx>
>---
> 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