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From: Val Packett <val@packett.cool>
Cc: Val Packett <val@packett.cool>,
	stable@vger.kernel.org, Miquel Raynal <miquel.raynal@bootlin.com>,
	Richard Weinberger <richard@nod.at>,
	Vignesh Raghavendra <vigneshr@ti.com>,
	Heiko Stuebner <heiko@sntech.de>,
	Stephen Rothwell <sfr@canb.auug.org.au>,
	linux-mtd@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2] mtd: rawnand: rockchip: ensure NVDDR timings are rejected
Date: Sun, 19 May 2024 00:13:39 -0300	[thread overview]
Message-ID: <20240519031409.26464-1-val@packett.cool> (raw)
In-Reply-To: <20240518124404.472eb60b@xps-13>

.setup_interface first gets called with a "target" value of
NAND_DATA_IFACE_CHECK_ONLY, in which case an error is expected
if the controller driver does not support the timing mode (NVDDR).

Fixes: a9ecc8c814e9 ("mtd: rawnand: Choose the best timings, NV-DDR included")
Signed-off-by: Val Packett <val@packett.cool>
Cc: stable@vger.kernel.org
---
 drivers/mtd/nand/raw/rockchip-nand-controller.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/nand/raw/rockchip-nand-controller.c b/drivers/mtd/nand/raw/rockchip-nand-controller.c
index 7baaef69d..555804476 100644
--- a/drivers/mtd/nand/raw/rockchip-nand-controller.c
+++ b/drivers/mtd/nand/raw/rockchip-nand-controller.c
@@ -420,13 +420,13 @@ static int rk_nfc_setup_interface(struct nand_chip *chip, int target,
 	u32 rate, tc2rw, trwpw, trw2c;
 	u32 temp;
 
-	if (target < 0)
-		return 0;
-
 	timings = nand_get_sdr_timings(conf);
 	if (IS_ERR(timings))
 		return -EOPNOTSUPP;
 
+	if (target < 0)
+		return 0;
+
 	if (IS_ERR(nfc->nfc_clk))
 		rate = clk_get_rate(nfc->ahb_clk);
 	else
-- 
2.45.0


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  reply	other threads:[~2024-05-19  3:15 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-05-18  3:31 [PATCH] mtd: rawnand: rockchip: reject NVDDR timings when checked Val Packett
2024-05-18 10:44 ` Miquel Raynal
2024-05-19  3:13   ` Val Packett [this message]
2024-05-27 12:14     ` [PATCH v2] mtd: rawnand: rockchip: ensure NVDDR timings are rejected Miquel Raynal

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