linux-kernel - [PATCH v3] mmc: mtk-sd: Increase the verbosity of msdc_track_cmd

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Date:   Fri,  1 Dec 2023 18:26:51 +0800
From:   Pin-yen Lin <treapking@...omium.org>
To:     Chaotian Jing <chaotian.jing@...iatek.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        ot_shunxi.zhang@...iatek.corp-partner.google.com,
        linux-mediatek@...ts.infradead.org,
        Chen-Yu Tsai <wenst@...omium.org>, linux-mmc@...r.kernel.org,
        Pin-yen Lin <treapking@...omium.org>
Subject: [PATCH v3] mmc: mtk-sd: Increase the verbosity of msdc_track_cmd_data

This log message is necessary for debugging, so enable it by default to
debug issues that are hard to reproduce locally.

Signed-off-by: Pin-yen Lin <treapking@...omium.org>

---

Changes in v3:
- Only print the warning when -ETIMEDOUT or not in tuning process

Changes in v2:
- Use dev_warn() instead of dev_err()

 drivers/mmc/host/mtk-sd.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c
index 97f7c3d4be6e..6ae5e0a9fca9 100644
--- a/drivers/mmc/host/mtk-sd.c
+++ b/drivers/mmc/host/mtk-sd.c
@@ -1149,9 +1149,11 @@ static void msdc_recheck_sdio_irq(struct msdc_host *host)
 
 static void msdc_track_cmd_data(struct msdc_host *host, struct mmc_command *cmd)
 {
-	if (host->error)
-		dev_dbg(host->dev, "%s: cmd=%d arg=%08X; host->error=0x%08X\n",
-			__func__, cmd->opcode, cmd->arg, host->error);
+	if (host->error &&
+	    ((!mmc_op_tuning(cmd->opcode) && !host->hs400_tuning) ||
+	     cmd->error == -ETIMEDOUT))
+		dev_warn(host->dev, "%s: cmd=%d arg=%08X; host->error=0x%08X\n",
+			 __func__, cmd->opcode, cmd->arg, host->error);
 }
 
 static void msdc_request_done(struct msdc_host *host, struct mmc_request *mrq)
-- 
2.43.0.rc2.451.g8631bc7472-goog