pm24.git/drivers/nvmem, branch v5.8-rc5

nvmem: qfprom: remove incorrect write support

2020-05-27T09:09:26Z

qfprom has different address spaces for read and write. Reads are always done from corrected address space, where as writes are done on raw address space. Writing to corrected address space is invalid and ignored, so it does not make sense to have this support in the driver which only supports corrected address space regions at the moment. Fixes: 4ab11996b489 ("nvmem: qfprom: Add Qualcomm QFPROM support.") Signed-off-by: Srinivas Kandagatla Reviewed-by: Douglas Anderson Cc: stable Link: https://lore.kernel.org/r/20200522113341.7728-1-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman

nvmem: jz4780-efuse: Use PTR_ERR_OR_ZERO() to simplify code

2020-05-15T14:20:02Z

Fixes coccicheck warning: drivers/nvmem/jz4780-efuse.c:214:1-3: WARNING: PTR_ERR_OR_ZERO can be used Reported-by: Hulk Robot Signed-off-by: Samuel Zou Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20200511145042.31223-4-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman

nvmem: ensure sysfs writes handle write-protect pin

2020-05-15T14:20:02Z

Commit 2a127da461a9 ("nvmem: add support for the write-protect pin") added support for handling write-protect pins to the nvmem core, and Commit 1c89074bf850 ("eeprom: at24: remove the write-protect pin support") retrofitted the at24 driver to use this support. These changes broke write() on the nvmem sysfs attribute for eeproms which utilize a write-protect pin, as the write callback invokes the nvmem device's reg_write callback directly which no longer handles changing the state of the write-protect pin. Change the read and write callbacks for the sysfs attribute to invoke nvmme_reg_read/nvmem_reg_write helpers which handle this, rather than calling reg_read/reg_write directly. Fixes: 2a127da461a9 ("nvmem: add support for the write-protect pin") Signed-off-by: Michael Auchter Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20200511145042.31223-3-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman

nvmem: imx-ocotp: Improve logic to save many code lines

2020-05-15T14:20:02Z

Several logic improvements to save many code lines: - no need to use goto; - no need to assign return value; - combine different conditions of return value into one line. Signed-off-by: Anson Huang Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20200511145042.31223-2-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman

firmware: xilinx: Remove eemi ops for get_chipid

2020-04-28T13:45:06Z

Use direct function call instead of eemi ops for get_chipid. Signed-off-by: Rajan Vaja Signed-off-by: Jolly Shah Link: https://lore.kernel.org/r/1587761887-4279-3-git-send-email-jolly.shah@xilinx.com Signed-off-by: Greg Kroah-Hartman

nvmem: core: cleanup old eeprom compat entry attributes

2020-04-28T13:02:48Z

file permission are derived based on various configs for default nvmem sysfs file, reuse it to create the eeprom compat file too. Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20200417121306.23121-1-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman

nvmem: core: remove nvmem_sysfs_get_groups()

2020-03-25T18:23:49Z

Now that we are using is_bin_visible callback, we do not need nvmem_sysfs_get_groups() anymore so move all the relevant data-structures and code to core.c Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20200325131951.31887-3-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman

nvmem: core: use is_bin_visible for permissions

2020-03-25T18:23:48Z

By using is_bin_visible callback to set permissions will remove a large list of attribute groups. These group permissions can be dynamically derived in the callback. Also add checks for read/write callbacks and set permissions accordingly. Suggested-by: Greg KH Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20200325131951.31887-2-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman

nvmem: core: use device_register and device_unregister

2020-03-25T17:56:38Z

use device_register/unregister instead of spliting them with no use. Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20200324171600.15606-2-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman

nvmem: core: add root_only member to nvmem device struct

2020-03-25T12:45:09Z

As we are planning to move to use sysfs is_bin_visible callback, having root_only as part of nvmem_device will help decide correct permissions. Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20200325122116.15096-2-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman