From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Wahren Subject: [PATCH V2 06/13] clk: bcm2835: Mark PLLD_PER as CRITICAL Date: Tue, 13 Aug 2019 18:20:41 +0200 Message-ID: <1565713248-4906-7-git-send-email-wahrenst@gmx.net> References: <1565713248-4906-1-git-send-email-wahrenst@gmx.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1565713248-4906-1-git-send-email-wahrenst@gmx.net> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Eric Anholt , Florian Fainelli , Ray Jui , Scott Branden , Wolfram Sang , Rob Herring , Mark Rutland , Michael Turquette , Stephen Boyd Cc: devicetree@vger.kernel.org, Stefan Wahren , bcm-kernel-feedback-list@broadcom.com, linux-rpi-kernel@lists.infradead.org, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-i2c@vger.kernel.org List-Id: linux-i2c@vger.kernel.org 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 --- 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