[PATCH 3/4] clocksource: armada-370-xp: Use the reference clock on A375 SoC
From: Thomas Petazzoni <hidden>
Date: 2014-10-22 13:54:10
Also in:
linux-watchdog
From: Thomas Petazzoni <hidden>
Date: 2014-10-22 13:54:10
Also in:
linux-watchdog
Dear Ezequiel Garcia, On Wed, 22 Oct 2014 10:34:43 -0300, Ezequiel Garcia wrote:
+static void __init armada_375_timer_init(struct device_node *np)
+{
+ struct clk *clk;
+
+ clk = of_clk_get_by_name(np, "fixed");
+ if (!IS_ERR(clk)) {
+ clk_prepare_enable(clk);
+ timer_clk = clk_get_rate(clk);
+ } else {
+
+ /*
+ * This fallback is required in order to retain proper
+ * devicetree backwards compatibility.
+ */
+ clk = of_clk_get(np, 0);
+
+ /* Must have at least a clock */
+ BUG_ON(IS_ERR(clk));
+ clk_prepare_enable(clk);
+ timer_clk = clk_get_rate(clk) / TIMER_DIVIDER;
+ timer25Mhz = false;
+ }Maybe we could re-use a bit more existing code, don't know if it makes things clearer though: clk = of_clk_get_by_name(np, "fixed"); if (!IS_ERR(clk)) armada_xp_timer_init(np); else armada_370_timer_init(np); Best regards, Thomas -- Thomas Petazzoni, CTO, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com