Christophe Kerello f6c052afe6 nvmem: core: Fix a conflict between MTD and NVMEM on wp-gpios property ... Wp-gpios property can be used on NVMEM nodes and the same property can be also used on MTD NAND nodes. In case of the wp-gpios property is defined at NAND level node, the GPIO management is done at NAND driver level. Write protect is disabled when the driver is probed or resumed and is enabled when the driver is released or suspended. When no partitions are defined in the NAND DT node, then the NAND DT node will be passed to NVMEM framework. If wp-gpios property is defined in this node, the GPIO resource is taken twice and the NAND controller driver fails to probe. It would be possible to set config->wp_gpio at MTD level before calling nvmem_register function but NVMEM framework will toggle this GPIO on each write when this GPIO should only be controlled at NAND level driver to ensure that the Write Protect has not been enabled. A way to fix this conflict is to add a new boolean flag in nvmem_config named ignore_wp. In case ignore_wp is set, the GPIO resource will be managed by the provider. Fixes: 2a127da461 ("nvmem: add support for the write-protect pin") Cc: stable@vger.kernel.org Signed-off-by: Christophe Kerello <christophe.kerello@foss.st.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20220220151432.16605-2-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-02-21 17:59:25 +01:00
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bcm-ocotp.c
brcm_nvram.c	nvmem: brcm_nvram: new driver exposing Broadcom's NVRAM	2021-04-02 16:26:33 +02:00
core.c	nvmem: core: Fix a conflict between MTD and NVMEM on wp-gpios property	2022-02-21 17:59:25 +01:00
imx-iim.c	nvmem: imx-iim: Use of_device_get_match_data()	2021-02-04 17:04:18 +01:00
imx-ocotp-scu.c
imx-ocotp.c	nvmem: imx-ocotp: add support for post processing	2021-10-13 15:33:17 +02:00
jz4780-efuse.c
Kconfig	nvmem: NVMEM_NINTENDO_OTP should depend on WII	2021-09-21 17:38:37 +02:00
lpc18xx_eeprom.c
lpc18xx_otp.c
Makefile	nvmem: nintendo-otp: Add new driver for the Wii and Wii U OTP	2021-08-13 10:27:20 +02:00
meson-efuse.c
meson-mx-efuse.c
mtk-efuse.c	nvmem: mtk-efuse: support minimum one byte access stride and granularity	2021-12-21 10:26:50 +01:00
mxs-ocotp.c
nintendo-otp.c	nvmem: nintendo-otp: Add new driver for the Wii and Wii U OTP	2021-08-13 10:27:20 +02:00
qcom-spmi-sdam.c	nvmem: convert comma to semicolon	2021-04-02 16:26:33 +02:00
qfprom.c	nvmem: qfprom: sc7280: Handle the additional power-domains vote	2021-08-06 15:18:40 +02:00
rave-sp-eeprom.c
rmem.c	nvmem: Add driver to expose reserved memory as nvmem	2021-02-04 17:04:18 +01:00
rockchip-efuse.c
rockchip-otp.c
sc27xx-efuse.c
snvs_lpgpr.c	nvmem: convert comma to semicolon	2021-04-02 16:26:33 +02:00
sprd-efuse.c	nvmem: sprd: Fix an error message	2021-05-14 13:39:50 +02:00
stm32-romem.c
sunxi_sid.c	nvmem: sunxi_sid: Set type to OTP	2021-06-11 10:57:52 +02:00
uniphier-efuse.c
vf610-ocotp.c
zynqmp_nvmem.c