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Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1i1rzp-0008H2-Lu; Sun, 25 Aug 2019 12:51:49 +0000 Received: from bhuna.collabora.co.uk ([46.235.227.227]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1i1rzm-0008Gg-5p for linux-mtd@lists.infradead.org; Sun, 25 Aug 2019 12:51:47 +0000 Received: from localhost (unknown [IPv6:2a01:e0a:2c:6930:5cf4:84a1:2763:fe0d]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: bbrezillon) by bhuna.collabora.co.uk (Postfix) with ESMTPSA id B932C28A1AB; Sun, 25 Aug 2019 13:51:44 +0100 (BST) Date: Sun, 25 Aug 2019 14:51:41 +0200 From: Boris Brezillon To: Subject: Re: [PATCH v2 4/7] mtd: spi-nor: Split spi_nor_init_params() Message-ID: <20190825145141.71a647ab@collabora.com> In-Reply-To: <78202b39-1c40-dbaa-3ebc-3481ecbe4643@microchip.com> References: <20190824120027.14452-1-tudor.ambarus@microchip.com> <20190824120027.14452-5-tudor.ambarus@microchip.com> <20190825140302.21ca2623@collabora.com> <78202b39-1c40-dbaa-3ebc-3481ecbe4643@microchip.com> Organization: Collabora X-Mailer: Claws Mail 3.17.3 (GTK+ 2.24.32; x86_64-redhat-linux-gnu) MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190825_055146_487348_A8177375 X-CRM114-Status: GOOD ( 18.86 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: vigneshr@ti.com, richard@nod.at, linux-kernel@vger.kernel.org, marek.vasut@gmail.com, linux-mtd@lists.infradead.org, miquel.raynal@bootlin.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org On Sun, 25 Aug 2019 12:23:45 +0000 wrote: > On 08/25/2019 03:03 PM, Boris Brezillon wrote: > > External E-Mail > > > > > > On Sat, 24 Aug 2019 12:00:43 +0000 > > wrote: > > > >> From: Tudor Ambarus > >> > >> Add functions to delimit what the chunks of code do: > >> > >> static void spi_nor_init_params() > >> { > >> spi_nor_legacy_init_params() > >> spi_nor_manufacturer_init_params() > >> spi_nor_sfdp_init_params() > >> } > >> > >> Add descriptions to all methods. > >> > >> spi_nor_init_params() becomes of type void, as all its children > >> return void. > >> > >> Signed-off-by: Tudor Ambarus > >> --- > >> drivers/mtd/spi-nor/spi-nor.c | 83 ++++++++++++++++++++++++++++++++----------- > >> 1 file changed, 63 insertions(+), 20 deletions(-) > >> > >> diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c > >> index c9514dfd7d6d..93424f914159 100644 > >> --- a/drivers/mtd/spi-nor/spi-nor.c > >> +++ b/drivers/mtd/spi-nor/spi-nor.c > >> @@ -4186,7 +4186,34 @@ static void spi_nor_manufacturer_init_params(struct spi_nor *nor) > >> nor->info->fixups->default_init(nor); > >> } > >> > >> -static int spi_nor_init_params(struct spi_nor *nor) > >> +/** > >> + * spi_nor_sfdp_init_params() - Initialize the flash's parameters and settings > >> + * based on JESD216 SFDP standard. > >> + * @nor: pointer to a 'struct spi-nor'. > >> + * > >> + * The method has a roll-back mechanism: in case the SFDP parsing fails, the > >> + * legacy flash parameters and settings will be restored. > >> + */ > >> +static void spi_nor_sfdp_init_params(struct spi_nor *nor) > >> +{ > >> + struct spi_nor_flash_parameter sfdp_params; > >> + > >> + memcpy(&sfdp_params, &nor->params, sizeof(sfdp_params)); > >> + > >> + if (spi_nor_parse_sfdp(nor, &sfdp_params)) { > >> + nor->addr_width = 0; > >> + nor->flags &= ~SNOR_F_4B_OPCODES; > >> + } else { > >> + memcpy(&nor->params, &sfdp_params, sizeof(nor->params)); > >> + } > >> +} > >> + > >> +/** > >> + * spi_nor_legacy_init_params() - Initialize the flash's parameters and settings > >> + * based on nor->info data. > >> + * @nor: pointer to a 'struct spi-nor'. > >> + */ > >> +static void spi_nor_legacy_init_params(struct spi_nor *nor) > > > > Nitpick: hm, I'm not a big fan of the 'legacy' term here as I'm not sure > > it reflects the reality. I guess this function will stay around, and > > even new NORs are not guaranteed to provide SFDP tables. How about > > spi_nor_set_default_params() or spi_nor_info_init_params()? > > I can rename it to spi_nor_info_init_params() to be in sync with > spi_nor_manufacturer_init_params() and > spi_nor_sfdp_init_params() > > or I can rename all to: > spi_nor_set_params() > spi_nor_set_default_params() > spi_nor_set_manufacturer_params() > spi_nor_set_sfdp_params() > > Both are ok, but the second option seems better. What would you choose? Both sound good, pick the one you prefer. ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/