linux-kernel - [PATCH v2 3/7] clk: stm32mp1: set ck

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Date:   Thu, 14 Feb 2019 11:40:43 +0100
From:   <gabriel.fernandez@...com>
To:     Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...com>
CC:     <linux-clk@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        Gabriel Fernandez <gabriel.fernandez@...com>
Subject: [PATCH v2 3/7] clk: stm32mp1: set ck_csi as critical clock

From: Gabriel Fernandez <gabriel.fernandez@...com>

ck_csi is used for IO compensation so it should be
considered as "always-on" and kept on.

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@...com>
---
 drivers/clk/clk-stm32mp1.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/clk-stm32mp1.c b/drivers/clk/clk-stm32mp1.c
index e72079de83f4..f9b7d5e9491d 100644
--- a/drivers/clk/clk-stm32mp1.c
+++ b/drivers/clk/clk-stm32mp1.c
@@ -1661,7 +1661,9 @@ static const struct clock_config stm32mp1_clock_cfg[] = {
 
 	/*  External / Internal Oscillators */
 	GATE_MP1(CK_HSE, "ck_hse", "clk-hse", 0, RCC_OCENSETR, 8, 0),
-	GATE_MP1(CK_CSI, "ck_csi", "clk-csi", 0, RCC_OCENSETR, 4, 0),
+	/* ck_csi is used by IO compensation and should be critical */
+	GATE_MP1(CK_CSI, "ck_csi", "clk-csi", CLK_IS_CRITICAL,
+		 RCC_OCENSETR, 4, 0),
 	GATE_MP1(CK_HSI, "ck_hsi", "clk-hsi-div", 0, RCC_OCENSETR, 0, 0),
 	GATE(CK_LSI, "ck_lsi", "clk-lsi", 0, RCC_RDLSICR, 0, 0),
 	GATE(CK_LSE, "ck_lse", "clk-lse", 0, RCC_BDCR, 0, 0),
-- 
2.17.0