Merge tag 'omap-for-v4.20/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc

SoC changes for omap variants

These changes improve support for clkctrl clocks to deal with
split memory ranges for clkctrl providers. And to use %pOFn
instead of device_node.name.

* tag 'omap-for-v4.20/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: Convert to using %pOFn instead of device_node.name
  ARM: OMAP2+: hwmod_core: improve the support for clkctrl clocks

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 51 insertions, 37 deletions

diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index cd65ea4e9c54..56a1fe90d394 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -188,16 +188,16 @@
 
 /**
  * struct clkctrl_provider - clkctrl provider mapping data
- * @addr: base address for the provider
- * @size: size of the provider address space
- * @offset: offset of the provider from PRCM instance base
+ * @num_addrs: number of base address ranges for the provider
+ * @addr: base address(es) for the provider
+ * @size: size(s) of the provider address space(s)
  * @node: device node associated with the provider
  * @link: list link
  */
 struct clkctrl_provider {
-	u32			addr;
-	u32			size;
-	u16			offset;
+	int			num_addrs;
+	u32			*addr;
+	u32			*size;
 	struct device_node	*node;
 	struct list_head	link;
 };
@@ -724,23 +724,34 @@ static int __init _setup_clkctrl_provider(struct device_node *np)
 	const __be32 *addrp;
 	struct clkctrl_provider *provider;
 	u64 size;
+	int i;
 
 	provider = memblock_virt_alloc(sizeof(*provider), 0);
 	if (!provider)
 		return -ENOMEM;
 
-	addrp = of_get_address(np, 0, &size, NULL);
-	provider->addr = (u32)of_translate_address(np, addrp);
-	addrp = of_get_address(np->parent, 0, NULL, NULL);
-	provider->offset = provider->addr -
-			   (u32)of_translate_address(np->parent, addrp);
-	provider->addr &= ~0xff;
-	provider->size = size | 0xff;
 	provider->node = np;
 
-	pr_debug("%s: %s: %x...%x [+%x]\n", __func__, np->parent->name,
-		 provider->addr, provider->addr + provider->size,
-		 provider->offset);
+	provider->num_addrs =
+		of_property_count_elems_of_size(np, "reg", sizeof(u32)) / 2;
+
+	provider->addr =
+		memblock_virt_alloc(sizeof(void *) * provider->num_addrs, 0);
+	if (!provider->addr)
+		return -ENOMEM;
+
+	provider->size =
+		memblock_virt_alloc(sizeof(u32) * provider->num_addrs, 0);
+	if (!provider->size)
+		return -ENOMEM;
+
+	for (i = 0; i < provider->num_addrs; i++) {
+		addrp = of_get_address(np, i, &size, NULL);
+		provider->addr[i] = (u32)of_translate_address(np, addrp);
+		provider->size[i] = size;
+		pr_debug("%s: %pOF: %x...%x\n", __func__, np, provider->addr[i],
+			 provider->addr[i] + provider->size[i]);
+	}
 
 	list_add(&provider->link, &clkctrl_providers);
 
@@ -787,23 +798,26 @@ static struct clk *_lookup_clkctrl_clk(struct omap_hwmod *oh)
 	pr_debug("%s: %s: addr=%x\n", __func__, oh->name, addr);
 
 	list_for_each_entry(provider, &clkctrl_providers, link) {
-		if (provider->addr <= addr &&
-		    provider->addr + provider->size >= addr) {
-			struct of_phandle_args clkspec;
+		int i;
 
-			clkspec.np = provider->node;
-			clkspec.args_count = 2;
-			clkspec.args[0] = addr - provider->addr -
-					  provider->offset;
-			clkspec.args[1] = 0;
+		for (i = 0; i < provider->num_addrs; i++) {
+			if (provider->addr[i] <= addr &&
+			    provider->addr[i] + provider->size[i] > addr) {
+				struct of_phandle_args clkspec;
 
-			clk = of_clk_get_from_provider(&clkspec);
+				clkspec.np = provider->node;
+				clkspec.args_count = 2;
+				clkspec.args[0] = addr - provider->addr[0];
+				clkspec.args[1] = 0;
 
-			pr_debug("%s: %s got %p (offset=%x, provider=%s)\n",
-				 __func__, oh->name, clk, clkspec.args[0],
-				 provider->node->parent->name);
+				clk = of_clk_get_from_provider(&clkspec);
 
-			return clk;
+				pr_debug("%s: %s got %p (offset=%x, provider=%pOF)\n",
+					 __func__, oh->name, clk,
+					 clkspec.args[0], provider->node);
+
+				return clk;
+			}
 		}
 	}
 
@@ -2107,8 +2121,8 @@ static int of_dev_find_hwmod(struct device_node *np,
 		if (res)
 			continue;
 		if (!strcmp(p, oh->name)) {
-			pr_debug("omap_hwmod: dt %s[%i] uses hwmod %s\n",
-				 np->name, i, oh->name);
+			pr_debug("omap_hwmod: dt %pOFn[%i] uses hwmod %s\n",
+				 np, i, oh->name);
 			return i;
 		}
 	}
@@ -2241,8 +2255,8 @@ int omap_hwmod_parse_module_range(struct omap_hwmod *oh,
 		return -ENOENT;
 
 	if (nr_addr != 1 || nr_size != 1) {
-		pr_err("%s: invalid range for %s->%s\n", __func__,
-		       oh->name, np->name);
+		pr_err("%s: invalid range for %s->%pOFn\n", __func__,
+		       oh->name, np);
 		return -EINVAL;
 	}
 
@@ -2250,8 +2264,8 @@ int omap_hwmod_parse_module_range(struct omap_hwmod *oh,
 	base = of_translate_address(np, ranges++);
 	size = be32_to_cpup(ranges);
 
-	pr_debug("omap_hwmod: %s %s at 0x%llx size 0x%llx\n",
-		 oh ? oh->name : "", np->name, base, size);
+	pr_debug("omap_hwmod: %s %pOFn at 0x%llx size 0x%llx\n",
+		 oh->name, np, base, size);
 
 	if (oh && oh->mpu_rt_idx) {
 		omap_hwmod_fix_mpu_rt_idx(oh, np, res);
@@ -2359,8 +2373,8 @@ static int __init _init(struct omap_hwmod *oh, void *data)
 	if (r)
 		pr_debug("omap_hwmod: %s missing dt data\n", oh->name);
 	else if (np && index)
-		pr_warn("omap_hwmod: %s using broken dt data from %s\n",
-			oh->name, np->name);
+		pr_warn("omap_hwmod: %s using broken dt data from %pOFn\n",
+			oh->name, np);
 
 	r = _init_mpu_rt_base(oh, NULL, index, np);
 	if (r < 0) {