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6 Commits

Author SHA1 Message Date
Cai Huoqing
a10ed4c425 mtd: spi-nor: hisi-sfc: Make use of the helper function devm_platform_ioremap_resource_byname() 
Use the devm_platform_ioremap_resource_byname() helper instead of
calling platform_get_resource_byname() and devm_ioremap_resource()
separately

Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Acked-by: Pratyush Yadav <p.yadav@ti.com>
Link: https://lore.kernel.org/r/20210901074259.9683-1-caihuoqing@baidu.com
 2021-10-15 11:56:44 +03:00
Evgeny Novikov
78e4d34218 mtd: spi-nor: hisi-sfc: Remove excessive clk_disable_unprepare() 
hisi_spi_nor_probe() invokes clk_disable_unprepare() on all paths after
successful call of clk_prepare_enable(). Besides, the clock is enabled by
hispi_spi_nor_prep() and disabled by hispi_spi_nor_unprep(). So at remove
time it is not possible to have the clock enabled. The patch removes
excessive clk_disable_unprepare() from hisi_spi_nor_remove().

Found by Linux Driver Verification project (linuxtesting.org).

Fixes: e523f11141 ("mtd: spi-nor: add hisilicon spi-nor flash controller driver")
Signed-off-by: Evgeny Novikov <novikov@ispras.ru>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Pratyush Yadav <p.yadav@ti.com>
Link: https://lore.kernel.org/r/20210709144529.31379-1-novikov@ispras.ru
 2021-10-15 11:43:05 +03:00
Pan Bian
fe6653460e mtd: spi-nor: hisi-sfc: Put child node np on error path 
Put the child node np when it fails to get or register device.

Fixes: e523f11141 ("mtd: spi-nor: add hisilicon spi-nor flash controller driver")
Cc: stable@vger.kernel.org
Signed-off-by: Pan Bian <bianpan2016@163.com>
[ta: Add Fixes tag and Cc stable]
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20210121091847.85362-1-bianpan2016@163.com
 2021-01-23 14:49:52 +02:00
Lee Jones
d67b272f23 mtd: spi-nor: hisi-sfc: Demote non-conformant kernel-doc 
Fixes the following W=1 kernel build warning(s):

 drivers/mtd/spi-nor/controllers/hisi-sfc.c:328: warning: Function parameter or member 'np' not described in 'hisi_spi_nor_register'
 drivers/mtd/spi-nor/controllers/hisi-sfc.c:328: warning: Function parameter or member 'host' not described in 'hisi_spi_nor_register'

Cc: Tudor Ambarus <tudor.ambarus@microchip.com>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Vignesh Raghavendra <vigneshr@ti.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: linux-mtd@lists.infradead.org
Cc: linux-media@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linaro-mm-sig@lists.linaro.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201109182206.3037326-8-lee.jones@linaro.org
 2020-11-20 12:37:30 +01:00
Tudor Ambarus
1ac71ec013 mtd: spi-nor: Fix SPI NOR acronym 
The correct terminology is serial NOR flash or SPI NOR.
s/SPI-NOR/SPI NOR and s/spi-nor/SPI NOR across the subsystem.

Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
 2020-05-28 10:46:23 +03:00
Boris Brezillon
a0900d0195 mtd: spi-nor: Prepare core / manufacturer code split 
Move all SPI NOR controller drivers to a controllers/ sub-directory
so that we only have SPI NOR related source files under
drivers/mtd/spi-nor/.

Rename spi-nor.c into core.c, we are about to split this file in multiple
source files (one per manufacturer, plus one for the SFDP parsing logic).

Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.com>
 2020-03-16 18:28:53 +02:00