On 20/04/17 00:43, Arnd Bergmann wrote:
When none of the OMAP4-generation SoCs are enabled, we run into a link
error for am43xx/am43xx:
drivers/clk/ti/dpll.o: In function `of_ti_am3_dpll_x2_setup':
dpll.c:(.init.text+0xd8): undefined reference to `clkhwops_omap4_dpllmx'
This is easily fixed by adding another #ifdef.
While looking at the code, I also spotted another problem with the
assignment of hw_ops variable that is not used again later. I'm
changing this to setting clk_hw->ops instead, which I guess is what
was intended here.
Good catch... It seems the corner case is masked in the testing I did
locally so far.
Fixes: 0565fb168d63 ("clk: ti: dpll: move omap3 DPLL functionality to clock driver")
However, I believe the fixes tag should point to this one in linux-next:
commit 473adbf4e02857a6b78dfb3d9fcf752638bbadb9
Author: Tero Kristo <t-kristo@xxxxxx>
Date: Thu Feb 9 11:25:28 2017 +0200
clk: ti: dpll44xx: fix clksel register initialization
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Other than that:
Acked-by: Tero Kristo <t-kristo@xxxxxx>
---
drivers/clk/ti/dpll.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/clk/ti/dpll.c b/drivers/clk/ti/dpll.c
index 96d84888c6c5..fcf297fd2233 100644
--- a/drivers/clk/ti/dpll.c
+++ b/drivers/clk/ti/dpll.c
@@ -312,7 +312,6 @@ 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) {
@@ -332,16 +331,21 @@ static void _register_dpll_x2(struct device_node *node,
init.parent_names = &parent_name;
init.num_parents = 1;
+#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) || \
+ defined(CONFIG_SOC_DRA7XX)
if (hw_ops == &clkhwops_omap4_dpllmx) {
+ int ret;
+
/* 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;
+ clk_hw->ops = NULL;
} else if (ti_clk_get_reg_addr(node, 0, &clk_hw->clksel_reg)) {
kfree(clk_hw);
return;
}
}
+#endif
/* register the clock */
clk = ti_clk_register(NULL, &clk_hw->hw, name);
--
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