From: Stefan Wahren <wahrenst@gmx.net>
To: Eric Anholt <eric@anholt.net>,
Florian Fainelli <f.fainelli@gmail.com>,
Ray Jui <rjui@broadcom.com>,
Scott Branden <sbranden@broadcom.com>,
Wolfram Sang <wsa@the-dreams.de>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>
Cc: bcm-kernel-feedback-list@broadcom.com,
linux-arm-kernel@lists.infradead.org, linux-i2c@vger.kernel.org,
linux-clk@vger.kernel.org, linux-rpi-kernel@lists.infradead.org,
devicetree@vger.kernel.org, Stefan Wahren <wahrenst@gmx.net>
Subject: [PATCH V2 06/13] clk: bcm2835: Mark PLLD_PER as CRITICAL
Date: Tue, 13 Aug 2019 18:20:41 +0200 [thread overview]
Message-ID: <1565713248-4906-7-git-send-email-wahrenst@gmx.net> (raw)
In-Reply-To: <1565713248-4906-1-git-send-email-wahrenst@gmx.net>
The VPU firmware assume that the PLLD_PER isn't modified by the ARM core.
Otherwise this could cause firmware lookups. So mark the clock as critical
to avoid this.
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
---
drivers/clk/bcm/clk-bcm2835.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c
index fdf672a..b62052e 100644
--- a/drivers/clk/bcm/clk-bcm2835.c
+++ b/drivers/clk/bcm/clk-bcm2835.c
@@ -1785,7 +1785,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = {
.load_mask = CM_PLLD_LOADPER,
.hold_mask = CM_PLLD_HOLDPER,
.fixed_divider = 1,
- .flags = CLK_SET_RATE_PARENT),
+ .flags = CLK_IS_CRITICAL | CLK_SET_RATE_PARENT),
[BCM2835_PLLD_DSI0] = REGISTER_PLL_DIV(
SOC_ALL,
.name = "plld_dsi0",
--
2.7.4
next prev parent reply other threads:[~2019-08-13 16:21 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-13 16:20 [PATCH V2 00/13] ARM: Add minimal Raspberry Pi 4 support Stefan Wahren
2019-08-13 16:20 ` [PATCH V2 01/13] ARM: dts: bcm283x: Enable HDMI at board level Stefan Wahren
2019-08-13 16:20 ` [PATCH V2 02/13] ARM: dts: bcm283x: Move BCM2835/6/7 specific to bcm2835-common.dtsi Stefan Wahren
2019-08-13 16:20 ` [PATCH V2 03/13] dt-bindings: bcm2835-cprman: Add bcm2711 support Stefan Wahren
2019-08-16 17:41 ` Stephen Boyd
2019-08-27 16:00 ` Rob Herring
2019-08-13 16:20 ` [PATCH V2 04/13] clk: bcm2835: Introduce SoC specific clock registration Stefan Wahren
2019-08-13 16:20 ` [PATCH V2 05/13] clk: bcm2835: Add BCM2711_CLOCK_EMMC2 support Stefan Wahren
2019-09-12 17:24 ` Matthias Brugger
2019-09-12 18:52 ` Eric Anholt
2019-09-13 1:20 ` Stefan Wahren
2019-09-13 7:13 ` Matthias Brugger
2019-09-13 23:02 ` Florian Fainelli
2019-08-13 16:20 ` Stefan Wahren [this message]
2019-08-16 17:39 ` [PATCH V2 06/13] clk: bcm2835: Mark PLLD_PER as CRITICAL Stephen Boyd
2019-08-13 16:20 ` [PATCH V2 07/13] dt-bindings: i2c: bcm2835: Add brcm,bcm2711 compatible Stefan Wahren
2019-08-27 16:00 ` Rob Herring
2019-08-13 16:20 ` [PATCH V2 08/13] i2c: bcm2835: Avoid clk stretch quirk for BCM2711 Stefan Wahren
2019-08-14 19:36 ` Wolfram Sang
2019-08-17 7:32 ` Stefan Wahren
2019-08-17 8:30 ` Wolfram Sang
2019-08-13 16:20 ` [PATCH V2 09/13] dt-bindings: arm: Convert BCM2835 board/soc bindings to json-schema Stefan Wahren
2019-08-13 17:22 ` Rob Herring
2019-08-14 19:21 ` Stefan Wahren
2019-08-14 23:06 ` Rob Herring
2019-08-13 16:20 ` [PATCH V2 10/13] dt-bindings: arm: bcm2835: Add Raspberry Pi 4 to DT schema Stefan Wahren
2019-08-13 16:20 ` [PATCH V2 11/13] ARM: bcm: Add support for BCM2711 SoC Stefan Wahren
2019-09-10 14:13 ` Matthias Brugger
2019-08-13 16:20 ` [PATCH V2 12/13] ARM: dts: Add minimal Raspberry Pi 4 support Stefan Wahren
2019-08-13 16:20 ` [PATCH V2 13/13] MAINTAINERS: Add BCM2711 to BCM2835 ARCH Stefan Wahren
2019-08-13 20:42 ` [PATCH V2 00/13] ARM: Add minimal Raspberry Pi 4 support Eric Anholt
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