Messages in this thread | | | Subject | Re: [PATCH] clk: ti: dra7xx: Reset the mcasp3_ahclkx_mux clock value | From | Tero Kristo <> | Date | Wed, 6 Sep 2017 14:42:31 +0300 |
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Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
On 06/09/17 13:36, Keerthy wrote: > Reset the mcasp3_ahclkx_mux to abe_24m_fclk. This is needed > in case of kexec where the reset values might be wiped off. > > Signed-off-by: Keerthy <j-keerthy@ti.com>
Why not do this in DT with the assigned-clock-xyz properties available?
-Tero
> --- > drivers/clk/ti/clk-7xx.c | 9 ++++++++- > 1 file changed, 8 insertions(+), 1 deletion(-) > > diff --git a/drivers/clk/ti/clk-7xx.c b/drivers/clk/ti/clk-7xx.c > index 9fd6043..2c3a36c 100644 > --- a/drivers/clk/ti/clk-7xx.c > +++ b/drivers/clk/ti/clk-7xx.c > @@ -312,7 +312,7 @@ > int __init dra7xx_dt_clk_init(void) > { > int rc; > - struct clk *dpll_ck, *hdcp_ck; > + struct clk *dpll_ck, *hdcp_ck, *mcasp3_ahclkx_ck, *abe_ck; > > ti_dt_clocks_register(dra7xx_clks); > > @@ -338,5 +338,12 @@ int __init dra7xx_dt_clk_init(void) > if (rc) > pr_err("%s: failed to set dss_deshdcp_clk\n", __func__); > > + mcasp3_ahclkx_ck = clk_get_sys(NULL, "mcasp3_ahclkx_mux"); > + abe_ck = clk_get_sys(NULL, "abe_24m_fclk"); > + rc = clk_set_parent(mcasp3_ahclkx_ck, abe_ck); > + if (rc) > + pr_err("%s: failed to set parent for mcasp3_ahclkx_mux\n", > + __func__); > + > return rc; > } >
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