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([79.115.63.16]) by smtp.gmail.com with ESMTPSA id w8-20020a170906130800b00992b510089asm3253861ejb.84.2023.07.22.01.40.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 22 Jul 2023 01:40:36 -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 v3 07/11] mtd: spi-nor: spansion: add octal DTR support in RD_ANY_REG_OP Date: Sat, 22 Jul 2023 11:40:02 +0300 Message-Id: <20230722084004.21857-8-tudor.ambarus@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230722084004.21857-1-tudor.ambarus@linaro.org> References: <20230722084004.21857-1-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=ARtE+Fv/l4a+BkMfBrTfq2ov79VZLg+i8bYbcphxQmM=; b=owEBbQGS/pANAwAKAUtVT0eljRTpAcsmYgBku5XjbqmEDqHMfs1PJlBNahV34jcDlLvGaPX+Z cKEiovvOcyJATMEAAEKAB0WIQQdQirKzw7IbV4d/t9LVU9HpY0U6QUCZLuV4wAKCRBLVU9HpY0U 6buHCACtlNOMz7joEkDiwxVMGe9W9J1dOVkmWSjupR0a0KXu3VB2a88w1PHj7FhDFiy9h5mhn88 RftVhay8xwYW0Ar9iZ+0Ztx9GBYpKwiHOOhyc/c7DfuNQHL8ZmjJl+rMg3+bbfQRiM2z+nNew5g czhkgamz7pjWWws3qP0gh4luGXZeFe8FITa7AA0Z/NmGHdu/zPo39PcKIaZKJPO8nTy/PHWrYv9 5VEKb1iVfesv9eoRZCNUcnnt1WdgQ8FTcczZNdEPLhHvWJYIGIQMc6bdB6UYLw9+jLnEJQiWKA+ GtNGC+WILZs1DITtddgu3it7f/jWbPL/sKWabczIDxm8DAZW 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 28d0a995f3b9..2fc3e65686b3 100644 --- a/drivers/mtd/spi-nor/spansion.c +++ b/drivers/mtd/spi-nor/spansion.c @@ -104,11 +104,17 @@ 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