| Message ID | 20180629094039.7543-3-brgl@bgdev.pl (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Friday 29 June 2018 03:10 PM, Bartosz Golaszewski wrote: > From: Bartosz Golaszewski <bgolaszewski@baylibre.com> > > Describe the usage of nvmem cell lookup tables. > > Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> > --- > Documentation/nvmem/nvmem.txt | 28 ++++++++++++++++++++++++++++ > 1 file changed, 28 insertions(+) > > diff --git a/Documentation/nvmem/nvmem.txt b/Documentation/nvmem/nvmem.txt > index 8d8d8f58f96f..9d5e3ca2b4f3 100644 > --- a/Documentation/nvmem/nvmem.txt > +++ b/Documentation/nvmem/nvmem.txt > @@ -58,6 +58,34 @@ static int qfprom_probe(struct platform_device *pdev) > It is mandatory that the NVMEM provider has a regmap associated with its > struct device. Failure to do would return error code from nvmem_register(). > > +Additionally it is possible to create nvmem cell lookup entries and register > +them with the nvmem framework from machine code as shown in the example below: > + > +static struct nvmem_cell_lookup foobar_lookup = { > + .info = { > + .name = "mac-address", > + .offset = 0xd000, > + .bytes = ERH_ALEN, ETH_ALEN. Will fix while applying. Regards, Sekhar -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On 29/06/18 10:40, Bartosz Golaszewski wrote: > From: Bartosz Golaszewski <bgolaszewski@baylibre.com> > > Describe the usage of nvmem cell lookup tables. > > Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> > --- > Documentation/nvmem/nvmem.txt | 28 ++++++++++++++++++++++++++++ > 1 file changed, 28 insertions(+) > > diff --git a/Documentation/nvmem/nvmem.txt b/Documentation/nvmem/nvmem.txt > index 8d8d8f58f96f..9d5e3ca2b4f3 100644 > --- a/Documentation/nvmem/nvmem.txt > +++ b/Documentation/nvmem/nvmem.txt > @@ -58,6 +58,34 @@ static int qfprom_probe(struct platform_device *pdev) > It is mandatory that the NVMEM provider has a regmap associated with its > struct device. Failure to do would return error code from nvmem_register(). > > +Additionally it is possible to create nvmem cell lookup entries and register > +them with the nvmem framework from machine code as shown in the example below: > + > +static struct nvmem_cell_lookup foobar_lookup = { > + .info = { > + .name = "mac-address", > + .offset = 0xd000, > + .bytes = ERH_ALEN, > + }, > + .nvmem_name = "foobar", > +}; > + > +static void foobar_register(void) > +{ > + ... > + nvmem_add_lookup_table(&foobar_lookup, 1); > + ... > +} > + > +A lookup entry table can be later removed if needed: > + > +static void foobar_fini(void) > +{ > + ... > + nvmem_del_lookup_table(&foobar_lookup, 1); > + ... > +} > + > NVMEM Consumers > +++++++++++++++ > > -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/Documentation/nvmem/nvmem.txt b/Documentation/nvmem/nvmem.txt index 8d8d8f58f96f..9d5e3ca2b4f3 100644 --- a/Documentation/nvmem/nvmem.txt +++ b/Documentation/nvmem/nvmem.txt @@ -58,6 +58,34 @@ static int qfprom_probe(struct platform_device *pdev) It is mandatory that the NVMEM provider has a regmap associated with its struct device. Failure to do would return error code from nvmem_register(). +Additionally it is possible to create nvmem cell lookup entries and register +them with the nvmem framework from machine code as shown in the example below: + +static struct nvmem_cell_lookup foobar_lookup = { + .info = { + .name = "mac-address", + .offset = 0xd000, + .bytes = ERH_ALEN, + }, + .nvmem_name = "foobar", +}; + +static void foobar_register(void) +{ + ... + nvmem_add_lookup_table(&foobar_lookup, 1); + ... +} + +A lookup entry table can be later removed if needed: + +static void foobar_fini(void) +{ + ... + nvmem_del_lookup_table(&foobar_lookup, 1); + ... +} + NVMEM Consumers +++++++++++++++