[PATCH 14/15] clk: ti: dpll44xx: fix clksel register initialization
From: Tero Kristo <hidden>
Date: 2017-02-13 09:35:10
Also in:
linux-clk, linux-omap
Subsystem:
common clk framework, the rest, ti clock driver · Maintainers:
Michael Turquette, Stephen Boyd, Linus Torvalds, Tero Kristo
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 <redacted> --- drivers/clk/ti/dpll.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+)
diff --git a/drivers/clk/ti/dpll.c b/drivers/clk/ti/dpll.c
index c149bd1..778bc90 100644
--- a/drivers/clk/ti/dpll.c
+++ b/drivers/clk/ti/dpll.c@@ -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);
--
1.9.1