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[24.22.235.96]) by smtp.gmail.com with ESMTPSA id k1sm19950258pfo.121.2019.03.26.23.35.03 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 26 Mar 2019 23:35:03 -0700 (PDT) From: Andrey Smirnov To: Shawn Guo Subject: [PATCH v2 2/3] ARM: dts: imx6sx: Specify IMX6SX_CLK_IPG as "ipg" clock to SDMA Date: Tue, 26 Mar 2019 23:34:50 -0700 Message-Id: <20190327063451.25629-2-andrew.smirnov@gmail.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190327063451.25629-1-andrew.smirnov@gmail.com> References: <20190327063451.25629-1-andrew.smirnov@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190326_233505_561133_D7E5F08B X-CRM114-Status: GOOD ( 13.86 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Andrey Smirnov , Angus Ainslie , linux-kernel@vger.kernel.org, Chris Healy , Fabio Estevam , linux-arm-kernel@lists.infradead.org, Lucas Stach Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Since 25aaa75df1e6 SDMA driver uses clock rates of "ipg" and "ahb" clock to determine if it needs to configure the IP block as operating at 1:1 or 1:2 clock ratio (ACR bit in SDMAARM_CONFIG). Specifying both clocks as IMX6SX_CLK_SDMA result in driver incorrectly thinking that ratio is 1:1 which results in broken SDMA functionality. Fix the code to specify IMX6SX_CLK_IPG as "ipg" clock for SDMA, to avoid detecting incorrect clock ratio. Fixes: 25aaa75df1e6 ("dmaengine: imx-sdma: add clock ratio 1:1 check") Signed-off-by: Andrey Smirnov Cc: Angus Ainslie (Purism) Cc: Chris Healy Cc: Lucas Stach Cc: Fabio Estevam Cc: Shawn Guo Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org --- arch/arm/boot/dts/imx6sx.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/imx6sx.dtsi b/arch/arm/boot/dts/imx6sx.dtsi index df0c59519886..b16a123990a2 100644 --- a/arch/arm/boot/dts/imx6sx.dtsi +++ b/arch/arm/boot/dts/imx6sx.dtsi @@ -820,7 +820,7 @@ compatible = "fsl,imx6sx-sdma", "fsl,imx6q-sdma"; reg = <0x020ec000 0x4000>; interrupts = ; - clocks = <&clks IMX6SX_CLK_SDMA>, + clocks = <&clks IMX6SX_CLK_IPG>, <&clks IMX6SX_CLK_SDMA>; clock-names = "ipg", "ahb"; #dma-cells = <3>;