linux-kernel - [PATCH] clk: at91: allow setting PMC

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Message-Id: <20220111142051.37957-1-admin@hifiphile.com>
Date:   Tue, 11 Jan 2022 14:20:50 +0000
From:   Zixun LI <admin@...iphile.com>
To:     Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Ludovic Desroches <ludovic.desroches@...rochip.com>,
        Rob Herring <robh+dt@...nel.org>
Cc:     Zixun LI <admin@...iphile.com>,
        Claudiu Beznea <Claudiu.Beznea@...rochip.com>,
        linux-clk@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: [PATCH] clk: at91: allow setting PMC_AUDIOPINCK clock parents via DT

Make AUDIOPINCK accessible via phandle to select it
as peripheral clock parent using assigned-clock-parents in DT
where available.

Signed-off-by: Zixun LI <admin@...iphile.com>
Reviewed-by: Claudiu Beznea <Claudiu.Beznea@...rochip.com>
---
 drivers/clk/at91/sama5d2.c       | 4 +++-
 include/dt-bindings/clock/at91.h | 1 +
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/at91/sama5d2.c b/drivers/clk/at91/sama5d2.c
index d027294a0089..f479e39e3bb2 100644
--- a/drivers/clk/at91/sama5d2.c
+++ b/drivers/clk/at91/sama5d2.c
@@ -168,7 +168,7 @@ static void __init sama5d2_pmc_setup(struct device_node *np)
 	if (IS_ERR(regmap))
 		return;
 
-	sama5d2_pmc = pmc_data_allocate(PMC_AUDIOPLLCK + 1,
+	sama5d2_pmc = pmc_data_allocate(PMC_AUDIOPINCK + 1,
 					nck(sama5d2_systemck),
 					nck(sama5d2_periph32ck),
 					nck(sama5d2_gck), 3);
@@ -216,6 +216,8 @@ static void __init sama5d2_pmc_setup(struct device_node *np)
 	if (IS_ERR(hw))
 		goto err_free;
 
+	sama5d2_pmc->chws[PMC_AUDIOPINCK] = hw;
+
 	hw = at91_clk_register_audio_pll_pmc(regmap, "audiopll_pmcck",
 					     "audiopll_fracck");
 	if (IS_ERR(hw))
diff --git a/include/dt-bindings/clock/at91.h b/include/dt-bindings/clock/at91.h
index 98e1b2ab6403..573cf8c25eb4 100644
--- a/include/dt-bindings/clock/at91.h
+++ b/include/dt-bindings/clock/at91.h
@@ -24,6 +24,7 @@
 #define PMC_PLLACK		7
 #define PMC_PLLBCK		8
 #define PMC_AUDIOPLLCK		9
+#define PMC_AUDIOPINCK		10
 
 /* SAMA7G5 */
 #define PMC_CPUPLL		(PMC_MAIN + 1)
-- 
2.30.2