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Subject[PATCH 17/33] clk: ux500: Provide u8500_clk with skeleton Device Tree support
Date
The functional components will be added on a per-clock basis.

Cc: Mike Turquette <mturquette@linaro.org>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
drivers/clk/ux500/u8500_clk.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)

diff --git a/drivers/clk/ux500/u8500_clk.c b/drivers/clk/ux500/u8500_clk.c
index 0b4f35a..ef948ff 100644
--- a/drivers/clk/ux500/u8500_clk.c
+++ b/drivers/clk/ux500/u8500_clk.c
@@ -7,6 +7,7 @@
* License terms: GNU General Public License (GPL) version 2
*/

+#include <linux/of.h>
#include <linux/clk.h>
#include <linux/clkdev.h>
#include <linux/clk-provider.h>
@@ -14,10 +15,17 @@
#include <linux/platform_data/clk-ux500.h>
#include "clk.h"

+const static struct of_device_id u8500_clk_of_match[] = {
+ { .compatible = "stericsson,u8500-clks", },
+ { },
+};
+
void u8500_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
u32 clkrst5_base, u32 clkrst6_base)
{
struct prcmu_fw_version *fw_version;
+ struct device_node *np = NULL;
+ struct device_node *child = NULL;
const char *sgaclk_parent = NULL;
struct clk *clk;

@@ -522,4 +530,13 @@ void u8500_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
clk = clk_reg_prcc_kclk("p3_rng_kclk", "rngclk",
clkrst6_base, BIT(0), CLK_SET_RATE_GATE);
clk_register_clkdev(clk, NULL, "rng");
+
+ if (of_have_populated_dt())
+ np = of_find_matching_node(NULL, u8500_clk_of_match);
+ if (!np)
+ return;
+
+ for_each_child_of_node(np, child) {
+ /* Place holder for supported nodes. */
+ }
}
--
1.7.10.4


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