From patchwork Sun Mar 22 22:44:20 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Giulio Benetti X-Patchwork-Id: 244106 List-Id: U-Boot discussion From: giulio.benetti at benettiengineering.com (Giulio Benetti) Date: Sun, 22 Mar 2020 23:44:20 +0100 Subject: [PATCH v2 04/19] clk: imx: clk-imxrt1050: add set_parent() callback In-Reply-To: <20200322224435.114512-1-giulio.benetti@benettiengineering.com> References: <20200322224435.114512-1-giulio.benetti@benettiengineering.com> Message-ID: <20200322224435.114512-5-giulio.benetti@benettiengineering.com> Need to add set_parent() callback to allow dts assigned-clock-parents to work so let's add it accordingly. Signed-off-by: Giulio Benetti --- V1->V2: * introduce patch to allow clock's parent setting in dts to work --- drivers/clk/imx/clk-imxrt1050.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/clk/imx/clk-imxrt1050.c b/drivers/clk/imx/clk-imxrt1050.c index bb12644605..329f4580c5 100644 --- a/drivers/clk/imx/clk-imxrt1050.c +++ b/drivers/clk/imx/clk-imxrt1050.c @@ -71,11 +71,30 @@ static int imxrt1050_clk_enable(struct clk *clk) return __imxrt1050_clk_enable(clk, 1); } +static int imxrt1050_clk_set_parent(struct clk *clk, struct clk *parent) +{ + struct clk *c, *cp; + int ret; + + debug("%s(#%lu), parent: %lu\n", __func__, clk->id, parent->id); + + ret = clk_get_by_id(clk->id, &c); + if (ret) + return ret; + + ret = clk_get_by_id(parent->id, &cp); + if (ret) + return ret; + + return clk_set_parent(c, cp); +} + static struct clk_ops imxrt1050_clk_ops = { .set_rate = imxrt1050_clk_set_rate, .get_rate = imxrt1050_clk_get_rate, .enable = imxrt1050_clk_enable, .disable = imxrt1050_clk_disable, + .set_parent = imxrt1050_clk_set_parent, }; static const char * const pll_ref_sels[] = {"osc", "dummy", };