linux-toradex.git/drivers/nvmem/meson-efuse.c, branch v5.0 Linux kernel for Apalis and Colibri modules nvmem: meson-efuse: add peripheral clock 2018-12-06T14:45:46+00:00 Jerome Brunet jbrunet@baylibre.com 2018-11-30T11:53:23+00:00 611fbca1c861976e95a5244acf9f40bb0981977c Get and enable the peripheral clock required by the efuse device. The driver has been handle to work without it so far because the clock was left enabled by default but it won't be the case soon. Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Get and enable the peripheral clock required by the efuse device.
The driver has been handle to work without it so far because the
clock was left enabled by default but it won't be the case soon.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
nvmem: meson-efuse: add error message on user_max failure. 2018-12-06T14:45:45+00:00 Jerome Brunet jbrunet@baylibre.com 2018-11-30T11:53:21+00:00 8649dbe58d359c46c8779ac43c4651ad5157ac47 Add an explicit error message when SM_EFUSE_USER_MAX command fails Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Add an explicit error message when SM_EFUSE_USER_MAX command fails

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
nvmem: meson-efuse: add write support 2018-05-14T14:20:48+00:00 Jerome Brunet jbrunet@baylibre.com 2018-05-11T11:07:01+00:00 e55077307d6f7ce86f9a468408fa5613c4a5cb5d Add write support to the meson-gx efuse driver. Beware, this efuse is one time programmable ! Reviewed-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Add write support to the meson-gx efuse driver.
Beware, this efuse is one time programmable !

Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
nvmem: meson-efuse: simplify read callback 2018-05-14T14:20:48+00:00 Jerome Brunet jbrunet@baylibre.com 2018-05-11T11:07:00+00:00 a29a63bdaf6f45f534def493223f211297462bed Most of the code and variables in the read callback is not necessary. Keep only what is required. Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Most of the code and variables in the read callback is not necessary.
Keep only what is required.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
nvmem: meson-efuse: remove econfig global 2018-05-14T14:20:48+00:00 Jerome Brunet jbrunet@baylibre.com 2018-05-11T11:06:59+00:00 401488d121a4ec9dc3fd9637591cf0f3577c8ec2 Having a global structure holding a reference to the device structure is not very nice. Allocate the econfig instead and fill the nvmem information as before Reviewed-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Having a global structure holding a reference to the device
structure is not very nice. Allocate the econfig instead and fill
the nvmem information as before

Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
nvmem: meson-efuse: Convert to use devm_nvmem_register() 2018-03-14T18:28:14+00:00 Andrey Smirnov andrew.smirnov@gmail.com 2018-03-09T14:47:05+00:00 90696a4097e35fcbded56ce923854141b01a2d04 Drop all of the code related to .remove hook and make use of devm_nvmem_register() instead. Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Carlo Caione <carlo@caione.org> Cc: Kevin Hilman <khilman@baylibre.com> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: cphealy@gmail.com Cc: linux-kernel@vger.kernel.org Cc: linux-mediatek@lists.infradead.org Cc: linux-rockchip@lists.infradead.org Cc: linux-amlogic@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Drop all of the code related to .remove hook and make use of
devm_nvmem_register() instead.

Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Carlo Caione <carlo@caione.org>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: cphealy@gmail.com
Cc: linux-kernel@vger.kernel.org
Cc: linux-mediatek@lists.infradead.org
Cc: linux-rockchip@lists.infradead.org
Cc: linux-amlogic@lists.infradead.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
nvmem: set nvmem->owner to nvmem->dev->driver->owner if unset 2017-11-08T12:54:17+00:00 Masahiro Yamada yamada.masahiro@socionext.com 2017-10-20T16:57:42+00:00 17eb18d674d586e609a3e268975edd728d5c84a3 All nvmem drivers are supposed to set the owner field of struct nvmem_config, but this matches nvmem->dev->driver->owner. As far as I see in drivers/nvmem/ directory, all the drivers are the case. So, make nvmem_register() set the nvmem's owner to the associated driver's owner unless nvmem_config sets otherwise. Remove .owner settings in the drivers that are now redundant. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
All nvmem drivers are supposed to set the owner field of struct
nvmem_config, but this matches nvmem->dev->driver->owner.

As far as I see in drivers/nvmem/ directory, all the drivers are
the case.  So, make nvmem_register() set the nvmem's owner to the
associated driver's owner unless nvmem_config sets otherwise.

Remove .owner settings in the drivers that are now redundant.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
nvmem: meson-efuse: indicate that this driver is only for Meson GX SoCs 2017-10-20T13:38:02+00:00 Martin Blumenstingl martin.blumenstingl@googlemail.com 2017-10-09T13:26:40+00:00 9593ad32b8be82f3abd6002336a93c405361b9fd The current Amlogic Meson eFuse driver only supports the 64-bit SoCs (GXBB and newer). Older SoCs cannot be supported by the same driver because they do not use the meson secure monitor firmware to access the hardware. Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
The current Amlogic Meson eFuse driver only supports the 64-bit SoCs
(GXBB and newer). Older SoCs cannot be supported by the same driver
because they do not use the meson secure monitor firmware to access the
hardware.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
firmware: meson-sm: Check for buffer output size 2017-03-23T19:22:32+00:00 Carlo Caione carlo@endlessm.com 2017-03-03T15:17:58+00:00 83e007a0c6a3f4bfdf8f3f8d0fc266cda189b3d6 After the data is read by the secure monitor driver it is being copied in the output buffer checking only the size of the bounce buffer but not the size of the output buffer. Fix this in the secure monitor driver slightly changing the API. Fix also the efuse driver that it is the only driver using this API to not break bisectability. Signed-off-by: Carlo Caione <carlo@endlessm.com> Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> # for nvmem Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com> 
After the data is read by the secure monitor driver it is being copied
in the output buffer checking only the size of the bounce buffer but not
the size of the output buffer.

Fix this in the secure monitor driver slightly changing the API. Fix
also the efuse driver that it is the only driver using this API to not
break bisectability.

Signed-off-by: Carlo Caione <carlo@endlessm.com>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> # for nvmem
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
nvmem: amlogic: Add Amlogic Meson EFUSE driver 2016-09-01T21:24:21+00:00 Carlo Caione carlo@endlessm.com 2016-08-27T13:43:46+00:00 ad855eae6caf0d1dd17bce5bcd8e07759adc9903 Add Amlogic EFUSE driver to access hardware data like ethernet address, serial number or IDs. Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Carlo Caione <carlo@endlessm.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com> 
Add Amlogic EFUSE driver to access hardware data like ethernet address,
serial number or IDs.

Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Carlo Caione <carlo@endlessm.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>