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([79.115.63.48]) by smtp.gmail.com with ESMTPSA id h14-20020a05600c260e00b003fbca942499sm1264346wma.14.2023.07.26.00.53.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 26 Jul 2023 00:53:12 -0700 (PDT) From: Tudor Ambarus To: tkuw584924@gmail.com, takahiro.kuwano@infineon.com, michael@walle.cc Cc: pratyush@kernel.org, linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, bacem.daassi@infineon.com, miquel.raynal@bootlin.com, richard@nod.at, Takahiro Kuwano Subject: [PATCH v4 07/11] mtd: spi-nor: spansion: add octal DTR support in RD_ANY_REG_OP Date: Wed, 26 Jul 2023 10:52:53 +0300 Message-Id: <20230726075257.12985-8-tudor.ambarus@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230726075257.12985-1-tudor.ambarus@linaro.org> References: <20230726075257.12985-1-tudor.ambarus@linaro.org> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1173; i=tudor.ambarus@linaro.org; h=from:subject; bh=+Z4bxTGyJ9/9zDwMM8hBMtji+B4a+ORn3JZ7mTF+ybY=; b=owEBbQGS/pANAwAKAUtVT0eljRTpAcsmYgBkwNDYGHy/s6o006qFtWZQ3anN1qewblLvDmIB3 scXS18pCACJATMEAAEKAB0WIQQdQirKzw7IbV4d/t9LVU9HpY0U6QUCZMDQ2AAKCRBLVU9HpY0U 6TWfB/9+5mfv0gOBgUZej7KRxVVtTF0Ls2oliPm9WOBhfe1lEk3zgrtBubIoDbS6zZbhof3gLKf xRCCopSCMllajAXkrKpjHJaieEAP/V6cyndfDmBQDTduen+TPQ5uBJVZ3cXIvH7IE5EhNN41BYq Ad8tF+zawYIicKhuL0ZXsNYASZY0OuSTBuEqatYmyvhqqkRFKMQ8TUK2kXbcZdV+A6CMaSHSsPn Hl9k4cEdF6fnjVn7DARZLc35vf9+J8bmj39cY55Ow2yGhVcDFEKe8w31lznDcv6NDKhSHfTNTOZ GuViUy7bNO3W7ZMFSrVKdRKRq7XY9c2lqVDdtG1JwwxnGvom X-Developer-Key: i=tudor.ambarus@linaro.org; a=openpgp; fpr=280B06FD4CAAD2980C46DDDF4DB1B079AD29CF3D Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Takahiro Kuwano S28HS02GT uses RD_ANY_REG_OP to read status of each die. In Octal DTR mode, RD_ANY_REG_OP needs dummy cycles (same as params->rdsr_dummy) and data length should be 2. Signed-off-by: Takahiro Kuwano --- drivers/mtd/spi-nor/spansion.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/spi-nor/spansion.c b/drivers/mtd/spi-nor/spansion.c index b3a710985f84..d7aa0a90949a 100644 --- a/drivers/mtd/spi-nor/spansion.c +++ b/drivers/mtd/spi-nor/spansion.c @@ -102,11 +102,17 @@ static void spansion_nor_clear_sr(struct spi_nor *nor) =20 static int cypress_nor_sr_ready_and_clear_reg(struct spi_nor *nor, u64 add= r) { + struct spi_nor_flash_parameter *params =3D nor->params; struct spi_mem_op op =3D - CYPRESS_NOR_RD_ANY_REG_OP(nor->params->addr_mode_nbytes, addr, + CYPRESS_NOR_RD_ANY_REG_OP(params->addr_mode_nbytes, addr, 0, nor->bouncebuf); int ret; =20 + if (nor->reg_proto =3D=3D SNOR_PROTO_8_8_8_DTR) { + op.dummy.nbytes =3D params->rdsr_dummy; + op.data.nbytes =3D 2; + } + ret =3D spi_nor_read_any_reg(nor, &op, nor->reg_proto); if (ret) return ret; --=20 2.34.1