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authorDinh Nguyen <dinguyen@altera.com>2013-12-10 03:16:38 +0400
committerMike Turquette <mturquette@linaro.org>2014-02-19 02:08:07 +0400
commit6a7e71221d4e6cd185a51e2659f279da67f2e22d (patch)
tree9d498dd18b323f6cdacb93869ebed76ba4f0b69d /drivers
parent6d0abeca3242a88cab8232e4acd7e2bf088f3bc2 (diff)
downloadlinux-6a7e71221d4e6cd185a51e2659f279da67f2e22d.tar.xz
clk: socfpga: Map the clk manager base address in the clock driver
The clk manager's base address was being mapped in SOCFPGA's arch code and being extern'ed out to the clock driver. This method is not correct, and the arch code was not really doing anything with that clk manager anyways. This patch moves the mapping of the clk manager's base address in the clock driver itself. Cleans up CLK_OF_DECLARE() into a single registration of all the clocks. Suggested-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Dinh Nguyen <dinguyen@altera.com> Acked-by: Arnd Bergmann <arnd@arndb.de> --- v2: Use a static declaration for the clk_mgr_base_addr. Clean up the CLK_OF_DECLARE() as suggested by Arnd.
Diffstat (limited to 'drivers')
-rw-r--r--drivers/clk/socfpga/clk.c20
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/clk/socfpga/clk.c b/drivers/clk/socfpga/clk.c
index 5983a26a8c5f..4fb52e1fc848 100644
--- a/drivers/clk/socfpga/clk.c
+++ b/drivers/clk/socfpga/clk.c
@@ -22,6 +22,7 @@
#include <linux/clk-provider.h>
#include <linux/io.h>
#include <linux/of.h>
+#include <linux/of_address.h>
/* Clock Manager offsets */
#define CLKMGR_CTRL 0x0
@@ -55,7 +56,7 @@
#define div_mask(width) ((1 << (width)) - 1)
#define streq(a, b) (strcmp((a), (b)) == 0)
-extern void __iomem *clk_mgr_base_addr;
+static void __iomem *clk_mgr_base_addr;
struct socfpga_clk {
struct clk_gate hw;
@@ -320,19 +321,30 @@ static void __init socfpga_pll_init(struct device_node *node)
{
socfpga_clk_init(node, &clk_pll_ops);
}
-CLK_OF_DECLARE(socfpga_pll, "altr,socfpga-pll-clock", socfpga_pll_init);
static void __init socfpga_periph_init(struct device_node *node)
{
socfpga_clk_init(node, &periclk_ops);
}
-CLK_OF_DECLARE(socfpga_periph, "altr,socfpga-perip-clk", socfpga_periph_init);
static void __init socfpga_gate_init(struct device_node *node)
{
socfpga_gate_clk_init(node, &gateclk_ops);
}
-CLK_OF_DECLARE(socfpga_gate, "altr,socfpga-gate-clk", socfpga_gate_init);
+
+static struct of_device_id socfpga_child_clocks[] = {
+ { .compatible = "altr,socfpga-pll-clock", socfpga_pll_init, },
+ { .compatible = "altr,socfpga-perip-clk", socfpga_periph_init, },
+ { .compatible = "altr,socfpga-gate-clk", socfpga_gate_init, },
+ {},
+};
+
+static void __init socfpga_clkmgr_init(struct device_node *node)
+{
+ clk_mgr_base_addr = of_iomap(node, 0);
+ of_clk_init(socfpga_child_clocks);
+}
+CLK_OF_DECLARE(socfpga_mgr, "altr,clk-mgr", socfpga_clkmgr_init);
void __init socfpga_init_clocks(void)
{