kernel/linux.git/drivers/nvmem/qfprom.c, branch v6.3

nvmem: qfprom: using pm_runtime_resume_and_get instead of pm_runtime_get_sync

2022-05-09T13:45:39+00:00

Using pm_runtime_resume_and_get is more appropriate for simplifing code Reported-by: Zeal Robot Signed-off-by: Minghao Chi Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20220429162701.2222-10-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman

nvmem: qfprom: Increase fuse blow timeout to prevent write fail

2022-02-25T10:49:36+00:00

sc7180 blow fuses got slightly chances to hit qfprom_reg_write timeout. Current timeout is simply too low. Since blowing fuses is a very rare operation, so the risk associated with overestimating this number is low. Increase fuse blow timeout from 1ms to 10ms. Reviewed-by: Douglas Anderson Signed-off-by: Knox Chiou Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20220223223502.29454-2-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman

nvmem: qfprom: fix kerneldoc warning

2022-02-21T17:00:29+00:00

This patch fixes below kernel doc warning, warning: expecting prototype for qfprom_efuse_reg_write(). Prototype was for qfprom_reg_write() instead No code changes. Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20220220151527.17216-5-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman

nvmem: qfprom: sc7280: Handle the additional power-domains vote

2021-08-06T13:18:40+00:00

On sc7280, to reliably blow fuses, we need an additional vote on max performance state of 'MX' power-domain. Add support for power-domain performance state voting in the driver. Reviewed-by: Douglas Anderson Signed-off-by: Rajendra Nayak Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20210806085947.22682-4-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman

nvmem: qfprom: Fix up qfprom_disable_fuse_blowing() ordering

2021-08-06T13:18:40+00:00

qfprom_disable_fuse_blowing() disables a bunch of resources, and then does a few register writes in the 'conf' address space. It works perhaps because the resources are needed only for the 'raw' register space writes, and that the 'conf' space allows read/writes regardless. However that makes the code look confusing, so just move the register writes before turning off the resources in the function. Reviewed-by: Douglas Anderson Signed-off-by: Rajendra Nayak Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20210806085947.22682-3-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman

nvmem: qfprom: Improve the comment about regulator setting

2021-06-11T08:57:58+00:00

In review feedback Joe Perches found the existing comment confusing. Let's use something based on the wording proposed by Joe. Suggested-by: Joe Perches Signed-off-by: Douglas Anderson Reviewed-by: Stephen Boyd Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20210611083348.20170-10-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman

nvmem: qfprom: minor nit fixes

2021-06-11T08:57:54+00:00

Fix a missed newline, change an 'if' to 'else if' and update a comment which is stale after the merge of '5a1bea2a: nvmem: qfprom: Add support for fuseblowing on sc7280' Signed-off-by: Rajendra Nayak Reviewed-by: Douglas Anderson Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20210611083348.20170-8-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman

nvmem: qfprom: Add support for fuse blowing on sc7280

2021-04-02T14:28:10+00:00

Handle the differences across LDO voltage needed for blowing fuses, and the blow timer value, identified using a minor version of 15 on sc7280. Signed-off-by: Rajendra Nayak Signed-off-by: Ravi Kumar Bokka Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20210330111241.19401-11-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman

drivers: nvmem: Fix voltage settings for QTI qfprom-efuse

2021-04-02T14:26:33+00:00

QFPROM controller hardware requires 1.8V min for fuse blowing. So, this change sets the voltage to 1.8V, required to blow the fuse for qfprom-efuse controller. To disable fuse blowing, we set the voltage to 0V since this may be a shared rail and may be able to run at a lower rate when we're not blowing fuses. Fixes: 93b4e49f8c86 ("nvmem: qfprom: Add fuse blowing support") Reported-by: Douglas Anderson Suggested-by: Douglas Anderson Reviewed-by: Douglas Anderson Signed-off-by: Ravi Kumar Bokka Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20210330111241.19401-4-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman

nvmem: qfprom: Don't touch certain fuses

2020-11-27T15:10:06+00:00

Some fuse ranges are protected by the XPU such that the AP cannot access them. Attempting to do so causes an SError. Use the newly introduced per-soc compatible string, and the newly introduced nvmem keepout support to attach the set of regions we should not access. Reviewed-by: Douglas Anderson Signed-off-by: Evan Green Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20201127102837.19366-5-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman