Messages in this thread Patch in this message |  | | From | Sudeep Holla <> | | Subject | [PATCH] clk: versatile: add min/max rate boundaries for vexpress osc clock | | Date | Fri, 10 Nov 2017 16:06:57 +0000 |
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Clock framework has a provider API(clk_hw_set_rate_range) to set the min/max rate of a clock. Use the same to set the boundaries for the vexpress osc clock.
Cc: Michael Turquette <mturquette@baylibre.com> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: linux-clk@vger.kernel.org Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> --- drivers/clk/versatile/clk-vexpress-osc.c | 1 + 1 file changed, 1 insertion(+)
Hi Stephen,
Just a quick question, does the clk core ensure the round_rate request to the clock provider is within this bounds ? A quick grep suggests it's used after the call to round_rate in clk_calc_new_rates. I can't recall the details from when you introduced clk_hw_set_rate_range.
Regards, Sudeep
diff --git a/drivers/clk/versatile/clk-vexpress-osc.c b/drivers/clk/versatile/clk-vexpress-osc.c index e7a868b83fe5..d3b5af2a02ab 100644 --- a/drivers/clk/versatile/clk-vexpress-osc.c +++ b/drivers/clk/versatile/clk-vexpress-osc.c @@ -104,6 +104,7 @@ static int vexpress_osc_probe(struct platform_device *pdev) return PTR_ERR(clk);
of_clk_add_provider(pdev->dev.of_node, of_clk_src_simple_get, clk); + clk_hw_set_rate_range(&osc->hw, osc->rate_min, osc->rate_max);
dev_dbg(&pdev->dev, "Registered clock '%s'\n", init.name);
-- 2.7.4
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