linux-kernel - [PATCH 2/2] clk: qoriq: add pll clock to clock lookup table

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Date:   Thu, 6 Apr 2017 10:21:23 +0800
From:   Yuantian Tang <andy.tang@....com>
To:     <mturquette@...libre.com>, <sboyd@...eaurora.org>
CC:     <linux-clk@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        Yuantian Tang <andy.tang@....com>
Subject: [PATCH 2/2] clk: qoriq: add pll clock to clock lookup table

Register each PLL and its division clocks to clock
lookup table to facilitate the clock look up for
clock consumer.

Signed-off-by: Tang Yuantian <andy.tang@....com>
---
 drivers/clk/clk-qoriq.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/clk/clk-qoriq.c b/drivers/clk/clk-qoriq.c
index 62cf32f..1bb691a 100644
--- a/drivers/clk/clk-qoriq.c
+++ b/drivers/clk/clk-qoriq.c
@@ -12,6 +12,7 @@
 
 #include <linux/clk.h>
 #include <linux/clk-provider.h>
+#include <linux/clkdev.h>
 #include <linux/fsl/guts.h>
 #include <linux/io.h>
 #include <linux/kernel.h>
@@ -1124,6 +1125,7 @@ static void __init create_one_pll(struct clockgen *cg, int idx)
 
 	for (i = 0; i < ARRAY_SIZE(pll->div); i++) {
 		struct clk *clk;
+		int ret;
 
 		snprintf(pll->div[i].name, sizeof(pll->div[i].name),
 			 "cg-pll%d-div%d", idx, i + 1);
@@ -1137,6 +1139,11 @@ static void __init create_one_pll(struct clockgen *cg, int idx)
 		}
 
 		pll->div[i].clk = clk;
+		ret = clk_register_clkdev(clk, pll->div[i].name, NULL);
+		if (ret != 0)
+			pr_err("%s: %s: register to lookup table failed %ld\n",
+			       __func__, pll->div[i].name, PTR_ERR(clk));
+
 	}
 }
 
-- 
2.1.0.27.g96db324