[PATCH 1/3] dm: add cells_count parameter in *_count_phandle_with_args
Patrick Delaunay
patrick.delaunay at st.com
Fri Sep 25 09:41:14 CEST 2020
The cell_count argument is required when cells_name is NULL.
This patch adds this parameter in live tree API
- of_count_phandle_with_args
- ofnode_count_phandle_with_args
- dev_count_phandle_with_args
This parameter solves issue when these API is used to count
the number of element of a cell without cell name. This parameter
allow to force the size cell.
For example:
count = dev_count_phandle_with_args(dev, "array", NULL, 3);
Signed-off-by: Patrick Delaunay <patrick.delaunay at st.com>
---
It is linked to previous serie [1] but it is not a blocking point today
as no user use this API with cells_name = NULL
+ dev_count_phandle_with_args
+ ofnode_count_phandle_with_args
[1/3] was Previously sent in RFC [2] + missing impacts in:
drivers/net/designware.c
drivers/power/domain/power-domain-uclass.c
drivers/usb/host/ohci-da8xx.c
drivers/usb/host/ohci-generic.c
I also add test in [3/3] for modified API.
But I think it is the good time to modify these functions as they are not
hugely used.
[1] http://patchwork.ozlabs.org/project/uboot/list/?series=200899
"dm: add cells_count parameter in live DT APIs of_parse_phandle_with_args"
[2] http://patchwork.ozlabs.org/project/uboot/list/?series=200906&state=*
board/st/stm32mp1/stm32mp1.c | 2 +-
drivers/clk/clk-uclass.c | 4 ++--
drivers/core/of_access.c | 7 ++++---
drivers/core/ofnode.c | 6 +++---
drivers/core/read.c | 5 +++--
drivers/net/designware.c | 3 ++-
drivers/phy/phy-uclass.c | 2 +-
drivers/power/domain/power-domain-uclass.c | 2 +-
drivers/reset/reset-uclass.c | 2 +-
drivers/usb/host/ehci-generic.c | 4 ++--
drivers/usb/host/ohci-da8xx.c | 3 ++-
drivers/usb/host/ohci-generic.c | 6 ++++--
include/dm/of_access.h | 4 +++-
include/dm/ofnode.h | 3 ++-
include/dm/read.h | 8 +++++---
15 files changed, 36 insertions(+), 25 deletions(-)
diff --git a/board/st/stm32mp1/stm32mp1.c b/board/st/stm32mp1/stm32mp1.c
index 3b677d339b..03a19af930 100644
--- a/board/st/stm32mp1/stm32mp1.c
+++ b/board/st/stm32mp1/stm32mp1.c
@@ -314,7 +314,7 @@ static int board_check_usb_power(void)
* for each of them
*/
adc_count = ofnode_count_phandle_with_args(node, "st,adc_usb_pd",
- "#io-channel-cells");
+ "#io-channel-cells", 0);
if (adc_count < 0) {
if (adc_count == -ENOENT)
return 0;
diff --git a/drivers/clk/clk-uclass.c b/drivers/clk/clk-uclass.c
index 934cd5787a..b1d8f1adaf 100644
--- a/drivers/clk/clk-uclass.c
+++ b/drivers/clk/clk-uclass.c
@@ -160,7 +160,7 @@ int clk_get_bulk(struct udevice *dev, struct clk_bulk *bulk)
bulk->count = 0;
- count = dev_count_phandle_with_args(dev, "clocks", "#clock-cells");
+ count = dev_count_phandle_with_args(dev, "clocks", "#clock-cells", 0);
if (count < 1)
return count;
@@ -195,7 +195,7 @@ static int clk_set_default_parents(struct udevice *dev, int stage)
int ret;
num_parents = dev_count_phandle_with_args(dev, "assigned-clock-parents",
- "#clock-cells");
+ "#clock-cells", 0);
if (num_parents < 0) {
debug("%s: could not read assigned-clock-parents for %p\n",
__func__, dev);
diff --git a/drivers/core/of_access.c b/drivers/core/of_access.c
index bcf1644d05..0a12e9b26f 100644
--- a/drivers/core/of_access.c
+++ b/drivers/core/of_access.c
@@ -756,10 +756,11 @@ int of_parse_phandle_with_args(const struct device_node *np,
}
int of_count_phandle_with_args(const struct device_node *np,
- const char *list_name, const char *cells_name)
+ const char *list_name, const char *cells_name,
+ int cell_count)
{
- return __of_parse_phandle_with_args(np, list_name, cells_name, 0,
- -1, NULL);
+ return __of_parse_phandle_with_args(np, list_name, cells_name,
+ cell_count, -1, NULL);
}
static void of_alias_add(struct alias_prop *ap, struct device_node *np,
diff --git a/drivers/core/ofnode.c b/drivers/core/ofnode.c
index 79fcdf5ce2..7d1b89514c 100644
--- a/drivers/core/ofnode.c
+++ b/drivers/core/ofnode.c
@@ -432,15 +432,15 @@ int ofnode_parse_phandle_with_args(ofnode node, const char *list_name,
}
int ofnode_count_phandle_with_args(ofnode node, const char *list_name,
- const char *cells_name)
+ const char *cells_name, int cell_count)
{
if (ofnode_is_np(node))
return of_count_phandle_with_args(ofnode_to_np(node),
- list_name, cells_name);
+ list_name, cells_name, cell_count);
else
return fdtdec_parse_phandle_with_args(gd->fdt_blob,
ofnode_to_offset(node), list_name, cells_name,
- 0, -1, NULL);
+ cell_count, -1, NULL);
}
ofnode ofnode_path(const char *path)
diff --git a/drivers/core/read.c b/drivers/core/read.c
index 86f3f88170..076125824c 100644
--- a/drivers/core/read.c
+++ b/drivers/core/read.c
@@ -214,10 +214,11 @@ int dev_read_phandle_with_args(const struct udevice *dev, const char *list_name,
}
int dev_count_phandle_with_args(const struct udevice *dev,
- const char *list_name, const char *cells_name)
+ const char *list_name, const char *cells_name,
+ int cell_count)
{
return ofnode_count_phandle_with_args(dev_ofnode(dev), list_name,
- cells_name);
+ cells_name, cell_count);
}
int dev_read_addr_cells(const struct udevice *dev)
diff --git a/drivers/net/designware.c b/drivers/net/designware.c
index 1c0e829407..4c19abbaf0 100644
--- a/drivers/net/designware.c
+++ b/drivers/net/designware.c
@@ -688,7 +688,8 @@ int designware_eth_probe(struct udevice *dev)
int i, clock_nb;
priv->clock_count = 0;
- clock_nb = dev_count_phandle_with_args(dev, "clocks", "#clock-cells");
+ clock_nb = dev_count_phandle_with_args(dev, "clocks", "#clock-cells",
+ 0);
if (clock_nb > 0) {
priv->clocks = devm_kcalloc(dev, clock_nb, sizeof(struct clk),
GFP_KERNEL);
diff --git a/drivers/phy/phy-uclass.c b/drivers/phy/phy-uclass.c
index db7f39cd0b..8713b8e7b7 100644
--- a/drivers/phy/phy-uclass.c
+++ b/drivers/phy/phy-uclass.c
@@ -179,7 +179,7 @@ int generic_phy_get_bulk(struct udevice *dev, struct phy_bulk *bulk)
if (!dev_read_prop(dev, "phys", NULL))
return 0;
- count = dev_count_phandle_with_args(dev, "phys", "#phy-cells");
+ count = dev_count_phandle_with_args(dev, "phys", "#phy-cells", 0);
if (count < 1)
return count;
diff --git a/drivers/power/domain/power-domain-uclass.c b/drivers/power/domain/power-domain-uclass.c
index c2c7c3bd50..af829db9da 100644
--- a/drivers/power/domain/power-domain-uclass.c
+++ b/drivers/power/domain/power-domain-uclass.c
@@ -117,7 +117,7 @@ static int dev_power_domain_ctrl(struct udevice *dev, bool on)
int i, count, ret = 0;
count = dev_count_phandle_with_args(dev, "power-domains",
- "#power-domain-cells");
+ "#power-domain-cells", 0);
for (i = 0; i < count; i++) {
ret = power_domain_get_by_index(dev, &pd, i);
if (ret)
diff --git a/drivers/reset/reset-uclass.c b/drivers/reset/reset-uclass.c
index 5e38ce5c06..411ad649ca 100644
--- a/drivers/reset/reset-uclass.c
+++ b/drivers/reset/reset-uclass.c
@@ -106,7 +106,7 @@ int reset_get_bulk(struct udevice *dev, struct reset_ctl_bulk *bulk)
bulk->count = 0;
- count = dev_count_phandle_with_args(dev, "resets", "#reset-cells");
+ count = dev_count_phandle_with_args(dev, "resets", "#reset-cells", 0);
if (count < 1)
return count;
diff --git a/drivers/usb/host/ehci-generic.c b/drivers/usb/host/ehci-generic.c
index 304a3437d5..c93a7051a7 100644
--- a/drivers/usb/host/ehci-generic.c
+++ b/drivers/usb/host/ehci-generic.c
@@ -86,7 +86,7 @@ static int ehci_usb_probe(struct udevice *dev)
err = 0;
priv->clock_count = 0;
clock_nb = ofnode_count_phandle_with_args(dev_ofnode(dev), "clocks",
- "#clock-cells");
+ "#clock-cells", 0);
if (clock_nb > 0) {
priv->clocks = devm_kcalloc(dev, clock_nb, sizeof(struct clk),
GFP_KERNEL);
@@ -116,7 +116,7 @@ static int ehci_usb_probe(struct udevice *dev)
priv->reset_count = 0;
reset_nb = ofnode_count_phandle_with_args(dev_ofnode(dev), "resets",
- "#reset-cells");
+ "#reset-cells", 0);
if (reset_nb > 0) {
priv->resets = devm_kcalloc(dev, reset_nb,
sizeof(struct reset_ctl),
diff --git a/drivers/usb/host/ohci-da8xx.c b/drivers/usb/host/ohci-da8xx.c
index 22e7b565b5..aa1eba262a 100644
--- a/drivers/usb/host/ohci-da8xx.c
+++ b/drivers/usb/host/ohci-da8xx.c
@@ -95,7 +95,8 @@ static int ohci_da8xx_probe(struct udevice *dev)
err = 0;
priv->clock_count = 0;
- clock_nb = dev_count_phandle_with_args(dev, "clocks", "#clock-cells");
+ clock_nb = dev_count_phandle_with_args(dev, "clocks", "#clock-cells",
+ 0);
if (clock_nb < 0)
return clock_nb;
diff --git a/drivers/usb/host/ohci-generic.c b/drivers/usb/host/ohci-generic.c
index b84bf8ac0f..7a286435c6 100644
--- a/drivers/usb/host/ohci-generic.c
+++ b/drivers/usb/host/ohci-generic.c
@@ -85,7 +85,8 @@ static int ohci_usb_probe(struct udevice *dev)
err = 0;
priv->clock_count = 0;
- clock_nb = dev_count_phandle_with_args(dev, "clocks", "#clock-cells");
+ clock_nb = dev_count_phandle_with_args(dev, "clocks", "#clock-cells",
+ 0);
if (clock_nb > 0) {
priv->clocks = devm_kcalloc(dev, clock_nb, sizeof(struct clk),
GFP_KERNEL);
@@ -111,7 +112,8 @@ static int ohci_usb_probe(struct udevice *dev)
}
priv->reset_count = 0;
- reset_nb = dev_count_phandle_with_args(dev, "resets", "#reset-cells");
+ reset_nb = dev_count_phandle_with_args(dev, "resets", "#reset-cells",
+ 0);
if (reset_nb > 0) {
priv->resets = devm_kcalloc(dev, reset_nb,
sizeof(struct reset_ctl),
diff --git a/include/dm/of_access.h b/include/dm/of_access.h
index 2fa65c9332..cc382b1671 100644
--- a/include/dm/of_access.h
+++ b/include/dm/of_access.h
@@ -450,6 +450,7 @@ int of_parse_phandle_with_args(const struct device_node *np,
* @np: pointer to a device tree node containing a list
* @list_name: property name that contains a list
* @cells_name: property name that specifies phandles' arguments count
+ * @cells_count: Cell count to use if @cells_name is NULL
* @return number of phandle found, -ENOENT if
* @list_name does not exist, -EINVAL if a phandle was not found,
* @cells_name could not be found, the arguments were truncated or there
@@ -460,7 +461,8 @@ int of_parse_phandle_with_args(const struct device_node *np,
*
*/
int of_count_phandle_with_args(const struct device_node *np,
- const char *list_name, const char *cells_name);
+ const char *list_name, const char *cells_name,
+ int cells_count);
/**
* of_alias_scan() - Scan all properties of the 'aliases' node
diff --git a/include/dm/ofnode.h b/include/dm/ofnode.h
index 8df2facf99..1726b6b2f9 100644
--- a/include/dm/ofnode.h
+++ b/include/dm/ofnode.h
@@ -555,12 +555,13 @@ int ofnode_parse_phandle_with_args(ofnode node, const char *list_name,
* @node: device tree node containing a list
* @list_name: property name that contains a list
* @cells_name: property name that specifies phandles' arguments count
+ * @cells_count: Cell count to use if @cells_name is NULL
* @return number of phandle on success, -ENOENT if @list_name does not
* exist, -EINVAL if a phandle was not found, @cells_name could not
* be found.
*/
int ofnode_count_phandle_with_args(ofnode node, const char *list_name,
- const char *cells_name);
+ const char *cells_name, int cell_count);
/**
* ofnode_path() - find a node by full path
diff --git a/include/dm/read.h b/include/dm/read.h
index 67db94adfc..0585eb1228 100644
--- a/include/dm/read.h
+++ b/include/dm/read.h
@@ -429,12 +429,14 @@ int dev_read_phandle_with_args(const struct udevice *dev, const char *list_name,
* @dev: device whose node containing a list
* @list_name: property name that contains a list
* @cells_name: property name that specifies phandles' arguments count
+ * @cells_count: Cell count to use if @cells_name is NULL
* @Returns number of phandle found on success, on error returns appropriate
* errno value.
*/
int dev_count_phandle_with_args(const struct udevice *dev,
- const char *list_name, const char *cells_name);
+ const char *list_name, const char *cells_name,
+ int cell_count);
/**
* dev_read_addr_cells() - Get the number of address cells for a device's node
@@ -880,10 +882,10 @@ static inline int dev_read_phandle_with_args(const struct udevice *dev,
}
static inline int dev_count_phandle_with_args(const struct udevice *dev,
- const char *list_name, const char *cells_name)
+ const char *list_name, const char *cells_name, int cell_count)
{
return ofnode_count_phandle_with_args(dev_ofnode(dev), list_name,
- cells_name);
+ cells_name, cell_count);
}
static inline int dev_read_addr_cells(const struct udevice *dev)
--
2.17.1
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