ARM: imx: add audio codec clk lookup for imx53-qsb
On imx53-qsb board, the clk ssi_ext.0 is used as the clock input
to audio codec sgtl5000.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
diff --git a/arch/arm/mach-imx/imx53-dt.c b/arch/arm/mach-imx/imx53-dt.c
index 4172279..8b002fc 100644
--- a/arch/arm/mach-imx/imx53-dt.c
+++ b/arch/arm/mach-imx/imx53-dt.c
@@ -10,6 +10,9 @@
* http://www.gnu.org/copyleft/gpl.html
*/
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/err.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
@@ -80,6 +83,19 @@
{ /* sentinel */ }
};
+static void __init imx53_qsb_init(void)
+{
+ struct clk *clk;
+
+ clk = clk_get_sys(NULL, "ssi_ext1");
+ if (IS_ERR(clk)) {
+ pr_err("failed to get clk ssi_ext1\n");
+ return;
+ }
+
+ clk_register_clkdev(clk, NULL, "0-000a");
+}
+
static void __init imx53_dt_init(void)
{
struct device_node *node;
@@ -96,6 +112,9 @@
of_node_put(node);
}
+ if (of_machine_is_compatible("fsl,imx53-qsb"))
+ imx53_qsb_init();
+
of_platform_populate(NULL, of_default_bus_match_table,
imx53_auxdata_lookup, NULL);
}
