Re: [PATCH] clk: ti: clk-7xx: Remove hardwired ABE clock configuration

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On 09/14/2015 11:52 AM, Peter Ujfalusi wrote:
Hi Tero,

On 08/24/2015 10:35 AM, Peter Ujfalusi wrote:
The ABE related clocks should be configured via DT and not have it wired
inside of the kernel.

can you take a look at this patch? It will not cause any regression since we
do not have audio support mainline and the pending series does not need this
part anymore.

This patch looks okay to me. So, you are saying this doesn't depend on anything? Isn't this causing any boot-time issues with the ABE DPLL left dangling with boot setup, potentially blocking PM? I am just wondering if we should group this patch with the rest of the audio support patches for dra7.

-Tero


Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
---
Hi Tero,

the ABE PLL configuration can, and will be done for dra7xx in DT with the
assigned-clocks/rate/parent feature so no need to have this anymore.

Regards,
Peter

  drivers/clk/ti/clk-7xx.c | 18 +-----------------
  1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/drivers/clk/ti/clk-7xx.c b/drivers/clk/ti/clk-7xx.c
index 9b5b289e6334..a911d7de3377 100644
--- a/drivers/clk/ti/clk-7xx.c
+++ b/drivers/clk/ti/clk-7xx.c
@@ -18,7 +18,6 @@

  #include "clock.h"

-#define DRA7_DPLL_ABE_DEFFREQ				180633600
  #define DRA7_DPLL_GMAC_DEFFREQ				1000000000
  #define DRA7_DPLL_USB_DEFFREQ				960000000

@@ -313,27 +312,12 @@ static struct ti_dt_clk dra7xx_clks[] = {
  int __init dra7xx_dt_clk_init(void)
  {
  	int rc;
-	struct clk *abe_dpll_mux, *sys_clkin2, *dpll_ck, *hdcp_ck;
+	struct clk *dpll_ck, *hdcp_ck;

  	ti_dt_clocks_register(dra7xx_clks);

  	omap2_clk_disable_autoidle_all();

-	abe_dpll_mux = clk_get_sys(NULL, "abe_dpll_sys_clk_mux");
-	sys_clkin2 = clk_get_sys(NULL, "sys_clkin2");
-	dpll_ck = clk_get_sys(NULL, "dpll_abe_ck");
-
-	rc = clk_set_parent(abe_dpll_mux, sys_clkin2);
-	if (!rc)
-		rc = clk_set_rate(dpll_ck, DRA7_DPLL_ABE_DEFFREQ);
-	if (rc)
-		pr_err("%s: failed to configure ABE DPLL!\n", __func__);
-
-	dpll_ck = clk_get_sys(NULL, "dpll_abe_m2x2_ck");
-	rc = clk_set_rate(dpll_ck, DRA7_DPLL_ABE_DEFFREQ * 2);
-	if (rc)
-		pr_err("%s: failed to configure ABE DPLL m2x2!\n", __func__);
-
  	dpll_ck = clk_get_sys(NULL, "dpll_gmac_ck");
  	rc = clk_set_rate(dpll_ck, DRA7_DPLL_GMAC_DEFFREQ);
  	if (rc)




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