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.delau...@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
