* [PATCH] fsi: Use of_property_read_reg() to parse "reg"
@ 2023-06-09 18:30 Rob Herring
2023-06-30 21:02 ` Rob Herring
0 siblings, 1 reply; 4+ messages in thread
From: Rob Herring @ 2023-06-09 18:30 UTC (permalink / raw)
To: Jeremy Kerr, Joel Stanley, Alistar Popple, Eddie James
Cc: linux-fsi, linux-kernel
Use the recently added of_property_read_reg() helper to get the
untranslated "reg" address value.
Signed-off-by: Rob Herring <robh@kernel.org>
---
drivers/fsi/fsi-core.c | 39 +++++++++------------------------------
1 file changed, 9 insertions(+), 30 deletions(-)
diff --git a/drivers/fsi/fsi-core.c b/drivers/fsi/fsi-core.c
index 0b927c9f4267..19c4d5b3bde9 100644
--- a/drivers/fsi/fsi-core.c
+++ b/drivers/fsi/fsi-core.c
@@ -16,6 +16,7 @@
#include <linux/idr.h>
#include <linux/module.h>
#include <linux/of.h>
+#include <linux/of_address.h>
#include <linux/slab.h>
#include <linux/bitops.h>
#include <linux/cdev.h>
@@ -415,28 +416,18 @@ EXPORT_SYMBOL_GPL(fsi_slave_release_range);
static bool fsi_device_node_matches(struct device *dev, struct device_node *np,
uint32_t addr, uint32_t size)
{
- unsigned int len, na, ns;
- const __be32 *prop;
- uint32_t psize;
+ u64 paddr, psize;
- na = of_n_addr_cells(np);
- ns = of_n_size_cells(np);
-
- if (na != 1 || ns != 1)
- return false;
-
- prop = of_get_property(np, "reg", &len);
- if (!prop || len != 8)
+ if (of_property_read_reg(np, 0, &paddr, &psize))
return false;
- if (of_read_number(prop, 1) != addr)
+ if (paddr != addr)
return false;
- psize = of_read_number(prop + 1, 1);
if (psize != size) {
dev_warn(dev,
- "node %s matches probed address, but not size (got 0x%x, expected 0x%x)",
- of_node_full_name(np), psize, size);
+ "node %pOF matches probed address, but not size (got 0x%llx, expected 0x%x)",
+ np, psize, size);
}
return true;
@@ -653,24 +644,12 @@ static void fsi_slave_release(struct device *dev)
static bool fsi_slave_node_matches(struct device_node *np,
int link, uint8_t id)
{
- unsigned int len, na, ns;
- const __be32 *prop;
-
- na = of_n_addr_cells(np);
- ns = of_n_size_cells(np);
-
- /* Ensure we have the correct format for addresses and sizes in
- * reg properties
- */
- if (na != 2 || ns != 0)
- return false;
+ u64 addr;
- prop = of_get_property(np, "reg", &len);
- if (!prop || len != 8)
+ if (of_property_read_reg(np, 0, &addr, NULL))
return false;
- return (of_read_number(prop, 1) == link) &&
- (of_read_number(prop + 1, 1) == id);
+ return addr == (((u64)link << 32) | id);
}
/* Find a matching node for the slave at (link, id). Returns NULL if none
--
2.39.2
^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [PATCH] fsi: Use of_property_read_reg() to parse "reg"
2023-06-09 18:30 [PATCH] fsi: Use of_property_read_reg() to parse "reg" Rob Herring
@ 2023-06-30 21:02 ` Rob Herring
2023-07-18 19:03 ` Rob Herring
0 siblings, 1 reply; 4+ messages in thread
From: Rob Herring @ 2023-06-30 21:02 UTC (permalink / raw)
To: Jeremy Kerr, Joel Stanley, Alistar Popple, Eddie James
Cc: linux-fsi, linux-kernel
On Fri, Jun 9, 2023 at 12:31 PM Rob Herring <robh@kernel.org> wrote:
>
> Use the recently added of_property_read_reg() helper to get the
> untranslated "reg" address value.
>
> Signed-off-by: Rob Herring <robh@kernel.org>
> ---
> drivers/fsi/fsi-core.c | 39 +++++++++------------------------------
> 1 file changed, 9 insertions(+), 30 deletions(-)
Ping!
>
> diff --git a/drivers/fsi/fsi-core.c b/drivers/fsi/fsi-core.c
> index 0b927c9f4267..19c4d5b3bde9 100644
> --- a/drivers/fsi/fsi-core.c
> +++ b/drivers/fsi/fsi-core.c
> @@ -16,6 +16,7 @@
> #include <linux/idr.h>
> #include <linux/module.h>
> #include <linux/of.h>
> +#include <linux/of_address.h>
> #include <linux/slab.h>
> #include <linux/bitops.h>
> #include <linux/cdev.h>
> @@ -415,28 +416,18 @@ EXPORT_SYMBOL_GPL(fsi_slave_release_range);
> static bool fsi_device_node_matches(struct device *dev, struct device_node *np,
> uint32_t addr, uint32_t size)
> {
> - unsigned int len, na, ns;
> - const __be32 *prop;
> - uint32_t psize;
> + u64 paddr, psize;
>
> - na = of_n_addr_cells(np);
> - ns = of_n_size_cells(np);
> -
> - if (na != 1 || ns != 1)
> - return false;
> -
> - prop = of_get_property(np, "reg", &len);
> - if (!prop || len != 8)
> + if (of_property_read_reg(np, 0, &paddr, &psize))
> return false;
>
> - if (of_read_number(prop, 1) != addr)
> + if (paddr != addr)
> return false;
>
> - psize = of_read_number(prop + 1, 1);
> if (psize != size) {
> dev_warn(dev,
> - "node %s matches probed address, but not size (got 0x%x, expected 0x%x)",
> - of_node_full_name(np), psize, size);
> + "node %pOF matches probed address, but not size (got 0x%llx, expected 0x%x)",
> + np, psize, size);
> }
>
> return true;
> @@ -653,24 +644,12 @@ static void fsi_slave_release(struct device *dev)
> static bool fsi_slave_node_matches(struct device_node *np,
> int link, uint8_t id)
> {
> - unsigned int len, na, ns;
> - const __be32 *prop;
> -
> - na = of_n_addr_cells(np);
> - ns = of_n_size_cells(np);
> -
> - /* Ensure we have the correct format for addresses and sizes in
> - * reg properties
> - */
> - if (na != 2 || ns != 0)
> - return false;
> + u64 addr;
>
> - prop = of_get_property(np, "reg", &len);
> - if (!prop || len != 8)
> + if (of_property_read_reg(np, 0, &addr, NULL))
> return false;
>
> - return (of_read_number(prop, 1) == link) &&
> - (of_read_number(prop + 1, 1) == id);
> + return addr == (((u64)link << 32) | id);
> }
>
> /* Find a matching node for the slave at (link, id). Returns NULL if none
> --
> 2.39.2
>
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH] fsi: Use of_property_read_reg() to parse "reg"
2023-06-30 21:02 ` Rob Herring
@ 2023-07-18 19:03 ` Rob Herring
2023-07-18 21:57 ` Eddie James
0 siblings, 1 reply; 4+ messages in thread
From: Rob Herring @ 2023-07-18 19:03 UTC (permalink / raw)
To: Jeremy Kerr, Joel Stanley, Alistar Popple, Eddie James
Cc: linux-fsi, linux-kernel
On Fri, Jun 30, 2023 at 3:02 PM Rob Herring <robh@kernel.org> wrote:
>
> On Fri, Jun 9, 2023 at 12:31 PM Rob Herring <robh@kernel.org> wrote:
> >
> > Use the recently added of_property_read_reg() helper to get the
> > untranslated "reg" address value.
> >
> > Signed-off-by: Rob Herring <robh@kernel.org>
> > ---
> > drivers/fsi/fsi-core.c | 39 +++++++++------------------------------
> > 1 file changed, 9 insertions(+), 30 deletions(-)
>
> Ping!
Is FSI still maintained or should we just remove it?
>
> >
> > diff --git a/drivers/fsi/fsi-core.c b/drivers/fsi/fsi-core.c
> > index 0b927c9f4267..19c4d5b3bde9 100644
> > --- a/drivers/fsi/fsi-core.c
> > +++ b/drivers/fsi/fsi-core.c
> > @@ -16,6 +16,7 @@
> > #include <linux/idr.h>
> > #include <linux/module.h>
> > #include <linux/of.h>
> > +#include <linux/of_address.h>
> > #include <linux/slab.h>
> > #include <linux/bitops.h>
> > #include <linux/cdev.h>
> > @@ -415,28 +416,18 @@ EXPORT_SYMBOL_GPL(fsi_slave_release_range);
> > static bool fsi_device_node_matches(struct device *dev, struct device_node *np,
> > uint32_t addr, uint32_t size)
> > {
> > - unsigned int len, na, ns;
> > - const __be32 *prop;
> > - uint32_t psize;
> > + u64 paddr, psize;
> >
> > - na = of_n_addr_cells(np);
> > - ns = of_n_size_cells(np);
> > -
> > - if (na != 1 || ns != 1)
> > - return false;
> > -
> > - prop = of_get_property(np, "reg", &len);
> > - if (!prop || len != 8)
> > + if (of_property_read_reg(np, 0, &paddr, &psize))
> > return false;
> >
> > - if (of_read_number(prop, 1) != addr)
> > + if (paddr != addr)
> > return false;
> >
> > - psize = of_read_number(prop + 1, 1);
> > if (psize != size) {
> > dev_warn(dev,
> > - "node %s matches probed address, but not size (got 0x%x, expected 0x%x)",
> > - of_node_full_name(np), psize, size);
> > + "node %pOF matches probed address, but not size (got 0x%llx, expected 0x%x)",
> > + np, psize, size);
> > }
> >
> > return true;
> > @@ -653,24 +644,12 @@ static void fsi_slave_release(struct device *dev)
> > static bool fsi_slave_node_matches(struct device_node *np,
> > int link, uint8_t id)
> > {
> > - unsigned int len, na, ns;
> > - const __be32 *prop;
> > -
> > - na = of_n_addr_cells(np);
> > - ns = of_n_size_cells(np);
> > -
> > - /* Ensure we have the correct format for addresses and sizes in
> > - * reg properties
> > - */
> > - if (na != 2 || ns != 0)
> > - return false;
> > + u64 addr;
> >
> > - prop = of_get_property(np, "reg", &len);
> > - if (!prop || len != 8)
> > + if (of_property_read_reg(np, 0, &addr, NULL))
> > return false;
> >
> > - return (of_read_number(prop, 1) == link) &&
> > - (of_read_number(prop + 1, 1) == id);
> > + return addr == (((u64)link << 32) | id);
> > }
> >
> > /* Find a matching node for the slave at (link, id). Returns NULL if none
> > --
> > 2.39.2
> >
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH] fsi: Use of_property_read_reg() to parse "reg"
2023-07-18 19:03 ` Rob Herring
@ 2023-07-18 21:57 ` Eddie James
0 siblings, 0 replies; 4+ messages in thread
From: Eddie James @ 2023-07-18 21:57 UTC (permalink / raw)
To: Rob Herring, Jeremy Kerr, Joel Stanley, Alistar Popple
Cc: linux-fsi, linux-kernel
On 7/18/23 14:03, Rob Herring wrote:
> On Fri, Jun 30, 2023 at 3:02 PM Rob Herring <robh@kernel.org> wrote:
>> On Fri, Jun 9, 2023 at 12:31 PM Rob Herring <robh@kernel.org> wrote:
>>> Use the recently added of_property_read_reg() helper to get the
>>> untranslated "reg" address value.
>>>
>>> Signed-off-by: Rob Herring <robh@kernel.org>
>>> ---
>>> drivers/fsi/fsi-core.c | 39 +++++++++------------------------------
>>> 1 file changed, 9 insertions(+), 30 deletions(-)
>> Ping!
> Is FSI still maintained or should we just remove it?
Yes, it is.
Reviewed-by: Eddie James <eajames@linux.ibm.com>
>
>>> diff --git a/drivers/fsi/fsi-core.c b/drivers/fsi/fsi-core.c
>>> index 0b927c9f4267..19c4d5b3bde9 100644
>>> --- a/drivers/fsi/fsi-core.c
>>> +++ b/drivers/fsi/fsi-core.c
>>> @@ -16,6 +16,7 @@
>>> #include <linux/idr.h>
>>> #include <linux/module.h>
>>> #include <linux/of.h>
>>> +#include <linux/of_address.h>
>>> #include <linux/slab.h>
>>> #include <linux/bitops.h>
>>> #include <linux/cdev.h>
>>> @@ -415,28 +416,18 @@ EXPORT_SYMBOL_GPL(fsi_slave_release_range);
>>> static bool fsi_device_node_matches(struct device *dev, struct device_node *np,
>>> uint32_t addr, uint32_t size)
>>> {
>>> - unsigned int len, na, ns;
>>> - const __be32 *prop;
>>> - uint32_t psize;
>>> + u64 paddr, psize;
>>>
>>> - na = of_n_addr_cells(np);
>>> - ns = of_n_size_cells(np);
>>> -
>>> - if (na != 1 || ns != 1)
>>> - return false;
>>> -
>>> - prop = of_get_property(np, "reg", &len);
>>> - if (!prop || len != 8)
>>> + if (of_property_read_reg(np, 0, &paddr, &psize))
>>> return false;
>>>
>>> - if (of_read_number(prop, 1) != addr)
>>> + if (paddr != addr)
>>> return false;
>>>
>>> - psize = of_read_number(prop + 1, 1);
>>> if (psize != size) {
>>> dev_warn(dev,
>>> - "node %s matches probed address, but not size (got 0x%x, expected 0x%x)",
>>> - of_node_full_name(np), psize, size);
>>> + "node %pOF matches probed address, but not size (got 0x%llx, expected 0x%x)",
>>> + np, psize, size);
>>> }
>>>
>>> return true;
>>> @@ -653,24 +644,12 @@ static void fsi_slave_release(struct device *dev)
>>> static bool fsi_slave_node_matches(struct device_node *np,
>>> int link, uint8_t id)
>>> {
>>> - unsigned int len, na, ns;
>>> - const __be32 *prop;
>>> -
>>> - na = of_n_addr_cells(np);
>>> - ns = of_n_size_cells(np);
>>> -
>>> - /* Ensure we have the correct format for addresses and sizes in
>>> - * reg properties
>>> - */
>>> - if (na != 2 || ns != 0)
>>> - return false;
>>> + u64 addr;
>>>
>>> - prop = of_get_property(np, "reg", &len);
>>> - if (!prop || len != 8)
>>> + if (of_property_read_reg(np, 0, &addr, NULL))
>>> return false;
>>>
>>> - return (of_read_number(prop, 1) == link) &&
>>> - (of_read_number(prop + 1, 1) == id);
>>> + return addr == (((u64)link << 32) | id);
>>> }
>>>
>>> /* Find a matching node for the slave at (link, id). Returns NULL if none
>>> --
>>> 2.39.2
>>>
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2023-07-18 21:57 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-06-09 18:30 [PATCH] fsi: Use of_property_read_reg() to parse "reg" Rob Herring
2023-06-30 21:02 ` Rob Herring
2023-07-18 19:03 ` Rob Herring
2023-07-18 21:57 ` Eddie James
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).