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clk: ti: dpll44xx: fix clksel register initialization 

clksel register pointer should be used for the DPLL-MX autoidle handling.
Currently this is not setup at all. Fix by adding proper handling for the
register.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Tero Kristo 2017-02-09 11:25:28 +02:00
parent 9a00fa6843
commit 473adbf4e0
1 changed files with 15 additions and 0 deletions
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15
drivers/clk/ti/dpll.c
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@ -319,6 +319,7 @@ static void _register_dpll_x2(struct device_node *node,
struct clk_hw_omap *clk_hw;
const char *name = node->name;
const char *parent_name;
int ret;
parent_name = of_clk_get_parent_name(node, 0);
if (!parent_name) {
@ -338,6 +339,20 @@ static void _register_dpll_x2(struct device_node *node,
init.parent_names = &parent_name;
init.num_parents = 1;
if (hw_ops == &clkhwops_omap4_dpllmx) {
/* Check if register defined, if not, drop hw-ops */
ret = of_property_count_elems_of_size(node, "reg", 1);
if (ret <= 0) {
hw_ops = NULL;
} else {
clk_hw->clksel_reg = ti_clk_get_reg_addr(node, 0);
if (IS_ERR(clk_hw->clksel_reg)) {
kfree(clk_hw);
return;
}
}
}
/* register the clock */
clk = ti_clk_register(NULL, &clk_hw->hw, name);