staging: tidspbridge: use prepare/unprepare on dsp clocks

[platform/adaptation/renesas_rcar/renesas_kernel.git] / drivers / staging / tidspbridge / core / dsp-clock.c

diff --git a/drivers/staging/tidspbridge/core/dsp-clock.c b/drivers/staging/tidspbridge/core/dsp-clock.c
index b647207..2f084e1 100644 (file)
--- a/drivers/staging/tidspbridge/core/dsp-clock.c
+++ b/drivers/staging/tidspbridge/core/dsp-clock.c
@@ -121,9 +121,13 @@ void dsp_clk_exit(void)
        for (i = 0; i < DM_TIMER_CLOCKS; i++)
                omap_dm_timer_free(timer[i]);
 
+       clk_unprepare(iva2_clk);
        clk_put(iva2_clk);
+       clk_unprepare(ssi.sst_fck);
        clk_put(ssi.sst_fck);
+       clk_unprepare(ssi.ssr_fck);
        clk_put(ssi.ssr_fck);
+       clk_unprepare(ssi.ick);
        clk_put(ssi.ick);
 }
 
@@ -145,14 +149,21 @@ void dsp_clk_init(void)
        iva2_clk = clk_get(&dspbridge_device.dev, "iva2_ck");
        if (IS_ERR(iva2_clk))
                dev_err(bridge, "failed to get iva2 clock %p\n", iva2_clk);
+       else
+               clk_prepare(iva2_clk);
 
        ssi.sst_fck = clk_get(&dspbridge_device.dev, "ssi_sst_fck");
        ssi.ssr_fck = clk_get(&dspbridge_device.dev, "ssi_ssr_fck");
        ssi.ick = clk_get(&dspbridge_device.dev, "ssi_ick");
 
-       if (IS_ERR(ssi.sst_fck) || IS_ERR(ssi.ssr_fck) || IS_ERR(ssi.ick))
+       if (IS_ERR(ssi.sst_fck) || IS_ERR(ssi.ssr_fck) || IS_ERR(ssi.ick)) {
                dev_err(bridge, "failed to get ssi: sst %p, ssr %p, ick %p\n",
                                        ssi.sst_fck, ssi.ssr_fck, ssi.ick);
+       } else {
+               clk_prepare(ssi.sst_fck);
+               clk_prepare(ssi.ssr_fck);
+               clk_prepare(ssi.ick);
+       }
 }
 
 /**