This patch allows fine tuning of the quads FS for audio clocks accuracy. Signed-off-by: Olivier Bideau <olivier.bideau@xxxxxx> Signed-off-by: Gabriel Fernandez <gabriel.fernandez@xxxxxxxxxx> --- .../devicetree/bindings/clock/st/st,flexgen.txt | 1 + drivers/clk/st/clk-flexgen.c | 24 ++++++++++++++++++++++ 2 files changed, 25 insertions(+) diff --git a/Documentation/devicetree/bindings/clock/st/st,flexgen.txt b/Documentation/devicetree/bindings/clock/st/st,flexgen.txt index b7ee5c7..15b33c7 100644 --- a/Documentation/devicetree/bindings/clock/st/st,flexgen.txt +++ b/Documentation/devicetree/bindings/clock/st/st,flexgen.txt @@ -60,6 +60,7 @@ This binding uses the common clock binding[2]. Required properties: - compatible : shall be: "st,flexgen" + "st,stih407-clkgend0", "st,flexgen" (enable clock propagation on parent) - #clock-cells : from common clock binding; shall be set to 1 (multiple clock outputs). diff --git a/drivers/clk/st/clk-flexgen.c b/drivers/clk/st/clk-flexgen.c index 627267c..3ff51ec 100644 --- a/drivers/clk/st/clk-flexgen.c +++ b/drivers/clk/st/clk-flexgen.c @@ -15,6 +15,10 @@ #include <linux/of.h> #include <linux/of_address.h> +struct clkgen_data { + unsigned long flags; +}; + struct flexgen { struct clk_hw hw; @@ -259,6 +263,18 @@ static const char ** __init flexgen_get_parents(struct device_node *np, return parents; } +static const struct clkgen_data clkgen_d0 = { + .flags = CLK_SET_RATE_PARENT, +}; + +static const struct of_device_id flexgen_of_match[] = { + { + .compatible = "st,stih407-clkgend0", + .data = &clkgen_d0, + }, + {} +}; + static void __init st_of_flexgen_setup(struct device_node *np) { struct device_node *pnode; @@ -267,6 +283,8 @@ static void __init st_of_flexgen_setup(struct device_node *np) const char **parents; int num_parents, i; spinlock_t *rlock = NULL; + const struct of_device_id *match; + struct clkgen_data *data = NULL; unsigned long flex_flags = 0; int ret; @@ -282,6 +300,12 @@ static void __init st_of_flexgen_setup(struct device_node *np) if (!parents) return; + match = of_match_node(flexgen_of_match, np); + if (match) { + data = (struct clkgen_data *)match->data; + flex_flags = data->flags; + } + clk_data = kzalloc(sizeof(*clk_data), GFP_KERNEL); if (!clk_data) goto err; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html