linux-kernel - [PATCH 6/6] clk: ingenic: jz4770: Add 150us delay after enabling VPU clock

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Date:   Sun, 20 May 2018 16:31:17 +0000
From:   Paul Cercueil <paul@...pouillou.net>
To:     Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>
Cc:     James Hogan <jhogan@...nel.org>, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org, Paul Cercueil <paul@...pouillou.net>
Subject: [PATCH 6/6] clk: ingenic: jz4770: Add 150us delay after enabling VPU clock

This is required, as we must not use the AHB1 bus before it is stable.

Signed-off-by: Paul Cercueil <paul@...pouillou.net>
---
 drivers/clk/ingenic/jz4770-cgu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/ingenic/jz4770-cgu.c b/drivers/clk/ingenic/jz4770-cgu.c
index f83852db1e27..c988759cb940 100644
--- a/drivers/clk/ingenic/jz4770-cgu.c
+++ b/drivers/clk/ingenic/jz4770-cgu.c
@@ -362,7 +362,7 @@ static const struct ingenic_cgu_clk_info jz4770_cgu_clocks[] = {
 	[JZ4770_CLK_VPU] = {
 		"vpu", CGU_CLK_GATE,
 		.parents = { JZ4770_CLK_H1CLK, },
-		.gate = { CGU_REG_LCR, 30 },
+		.gate = { CGU_REG_LCR, 30, false, 150 },
 	},
 	[JZ4770_CLK_MMC0] = {
 		"mmc0", CGU_CLK_GATE,
-- 
2.17.0