linux-kernel - [PATCH v1 09/20] soc: mediatek: mtk-svs: Move t-calibration-data retrieval to svs

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20231117094228.40013-10-angelogioacchino.delregno@collabora.com>
Date:   Fri, 17 Nov 2023 10:42:17 +0100
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     matthias.bgg@...il.com
Cc:     krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        robh+dt@...nel.org, angelogioacchino.delregno@...labora.com,
        p.zabel@...gutronix.de, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, kernel@...labora.com,
        wenst@...omium.org
Subject: [PATCH v1 09/20] soc: mediatek: mtk-svs: Move t-calibration-data retrieval to svs_probe()

The t-calibration-data (SVS-Thermal calibration data) shall exist for
all SoCs or SVS won't work anyway: move it to the common svs_probe()
function and remove it from all of the per-SoC efuse_parsing() probe
callbacks.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---
 drivers/soc/mediatek/mtk-svs.c | 32 ++++++--------------------------
 1 file changed, 6 insertions(+), 26 deletions(-)

diff --git a/drivers/soc/mediatek/mtk-svs.c b/drivers/soc/mediatek/mtk-svs.c
index ab564d48092b..1042af2aee3f 100644
--- a/drivers/soc/mediatek/mtk-svs.c
+++ b/drivers/soc/mediatek/mtk-svs.c
@@ -1884,11 +1884,6 @@ static bool svs_mt8195_efuse_parsing(struct svs_platform *svsp)
 		svsb->vmax += svsb->dvt_fixed;
 	}
 
-	ret = svs_get_efuse_data(svsp, "t-calibration-data",
-				 &svsp->tefuse, &svsp->tefuse_max);
-	if (ret)
-		return false;
-
 	for (i = 0; i < svsp->tefuse_max; i++)
 		if (svsp->tefuse[i] != 0)
 			break;
@@ -1949,11 +1944,6 @@ static bool svs_mt8192_efuse_parsing(struct svs_platform *svsp)
 		svsb->vmax += svsb->dvt_fixed;
 	}
 
-	ret = svs_get_efuse_data(svsp, "t-calibration-data",
-				 &svsp->tefuse, &svsp->tefuse_max);
-	if (ret)
-		return false;
-
 	for (i = 0; i < svsp->tefuse_max; i++)
 		if (svsp->tefuse[i] != 0)
 			break;
@@ -2009,11 +1999,6 @@ static bool svs_mt8188_efuse_parsing(struct svs_platform *svsp)
 		svsb->vmax += svsb->dvt_fixed;
 	}
 
-	ret = svs_get_efuse_data(svsp, "t-calibration-data",
-				 &svsp->tefuse, &svsp->tefuse_max);
-	if (ret)
-		return false;
-
 	for (i = 0; i < svsp->tefuse_max; i++)
 		if (svsp->tefuse[i] != 0)
 			break;
@@ -2097,11 +2082,6 @@ static bool svs_mt8186_efuse_parsing(struct svs_platform *svsp)
 		svsb->vmax += svsb->dvt_fixed;
 	}
 
-	ret = svs_get_efuse_data(svsp, "t-calibration-data",
-				 &svsp->tefuse, &svsp->tefuse_max);
-	if (ret)
-		return false;
-
 	golden_temp = (svsp->tefuse[0] >> 24) & GENMASK(7, 0);
 	if (!golden_temp)
 		golden_temp = 50;
@@ -2198,11 +2178,6 @@ static bool svs_mt8183_efuse_parsing(struct svs_platform *svsp)
 		}
 	}
 
-	ret = svs_get_efuse_data(svsp, "t-calibration-data",
-				 &svsp->tefuse, &svsp->tefuse_max);
-	if (ret)
-		return false;
-
 	/* Thermal efuse parsing */
 	adc_ge_t = (svsp->tefuse[1] >> 22) & GENMASK(9, 0);
 	adc_oe_t = (svsp->tefuse[1] >> 12) & GENMASK(9, 0);
@@ -3040,8 +3015,13 @@ static int svs_probe(struct platform_device *pdev)
 
 	ret = svs_get_efuse_data(svsp, "svs-calibration-data",
 				 &svsp->efuse, &svsp->efuse_max);
+	if (ret)
+		return dev_err_probe(&pdev->dev, ret, "Cannot read SVS calibration\n");
+
+	ret = svs_get_efuse_data(svsp, "t-calibration-data",
+				 &svsp->tefuse, &svsp->tefuse_max);
 	if (ret) {
-		ret = -EPERM;
+		dev_err_probe(&pdev->dev, ret, "Cannot read SVS-Thermal calibration\n");
 		goto svs_probe_free_efuse;
 	}
 
-- 
2.42.0