From 473adbf4e02857a6b78dfb3d9fcf752638bbadb9 Mon Sep 17 00:00:00 2001 From: Tero Kristo Date: Thu, 9 Feb 2017 11:25:28 +0200 Subject: [PATCH] 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 Acked-by: Tony Lindgren --- 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 c149bd169f43..778bc90955b9 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); -- 2.20.1