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Wed, 11 Dec 2019 14:52:03 +0000 (GMT) X-AuditID: cbfec7f5-a0fff7000001ed1a-76-5df102949857 Received: from eusmtip2.samsung.com ( [203.254.199.222]) by eusmgms2.samsung.com (EUCPMTA) with SMTP id 67.6B.07950.39201FD5; Wed, 11 Dec 2019 14:52:03 +0000 (GMT) Received: from AMDC2765.digital.local (unknown [106.120.51.73]) by eusmtip2.samsung.com (KnoxPortal) with ESMTPA id 20191211145202eusmtip2fcc25505ece3a2c913bad879caf94a57~fWLOW-cWL1112911129eusmtip2C; Wed, 11 Dec 2019 14:52:02 +0000 (GMT) From: Marek Szyprowski To: linux-usb@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 1/4] ARM: dts: exynos: Correct USB3503 GPIOs polarity Date: Wed, 11 Dec 2019 15:51:55 +0100 Message-Id: <20191211145155.24927-1-m.szyprowski@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191211145054.24835-1-m.szyprowski@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA0VSa0iTURjufHdnk2/T8GCSMcgwUpNJnbKsQOgjgvJPPwTTpZ+3vLE5rQiq aVajwsTI7KKpaXjZ5hRNsy01WiY4dbYknVZmUKBhWrayy7Yv699ze8/z8nIYXGohA5j07Dxe ma3IlFEiov2p0xpahs3Hb3k9TqLB6R8EainXk2jAPEeg86bbBCqs0VPIajXQqGy5HkPGaTuJ bF23KGQrHAao3GrCUHXdORw1P3HQSFMkR8UX60jUqjtPI2evFdsj4WqWJnHO8LaR5DorHDRn bLhIcRP2booz326iudba01xRv5ngrrQ1AG7BuO6QKE60M5nPTM/nleHRiaI0Te0EyNVJjp8t GcXOgCEfLfBiIBsJTd8/01ogYqTsfQCn9AOU25CyiwDeHP9rLAD46J4GX5lYqNRQglEP4ILe QQrENfFspIZ2pyg2AmpntZ6UH9sE4I/L5YSb4Ox3HLbb6z0lviwHTYZq0o0JdgPsrOzwYDG7 Cy46qwihLwg2Gh57ur3YaKj9qvM8BNlXNJxZ+k0JoRg42TOPCdgXfrS00QIOhL87KzFhoBDA N4PNtEAuAWjTlAMhFQX7LMOuasa1XwjUd4UL8l5omXJibhmyPnBsVuKWcRcsbb+OC7IYXiiW CulgWGHR/avtGRr5ey8ONnTZMOFEVwGcsxqwEhBU8b+sCoAG4M+rVVmpvEqezReEqRRZKnV2 alhSTpYRuL7XwC/LlwfAtHy0F7AMkK0WV3V8ipeSinzViaxeABlc5ie2FM/FS8XJihMneWVO glKdyat6wVqGkPmL5dUf4qVsqiKPP8bzubxyxcUYr4AzQLJjnEl0ej/vXHOn6IB3c8f6Zcsq 5e6S2Ljlh+/GWnyT3qkT8OmZ6MCM2bAqTXCGdWvs5/3myJf7OiZjxiTeR/p1b7r7btR+m31h /xml7u/ODx8dKZ7ZcO29Dt8ecislZaNj87ZVxKlQntg+L74bc+lgs/pwW0FaaXCQ3GgfiygE MkKVpojYhCtVij+GKxDEWgMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrOIsWRmVeSWpSXmKPExsVy+t/xe7qTmT7GGqy9rm9x7vFvFouNM9az Wpze/47Fon3fXBaL5sXr2SzOn9/AbjHlz3Imi02Pr7FaXN41h83icvNFRosZ5/cxWSxa1sps sfbIXXaLphZji7bOZawWm9e1s1v8PHSeyUHQY/H3e8weGx6tZvXYOesuu8emVZ1sHneu7WHz 2D93DbvH5iX1Hi0n97N49G1ZxejxeZNcAFeUnk1RfmlJqkJGfnGJrVK0oYWRnqGlhZ6RiaWe obF5rJWRqZK+nU1Kak5mWWqRvl2CXkbTkjuMBesEKxonXGFqYLzA18XIySEhYCLxeX4TG4gt JLCUUeL2RVWIuIzEyWkNrBC2sMSfa11ANVxANZ8YJf7fP8cEkmATMJToeguREBHYwChx5v0T FhCHWaCJRWLqrMdgVcICHhL7NiwCG8UioCqxc/52MJtXwFbiy88FLBAr5CVWbzjADGJzCthJ dH1bxwJxkq3Ep9ttbBMY+RYwMqxiFEktLc5Nzy020itOzC0uzUvXS87P3cQIjKRtx35u2cHY 9S74EKMAB6MSD++C7e9jhVgTy4orcw8xSnAwK4nwHm97FyvEm5JYWZValB9fVJqTWnyI0RTo qInMUqLJ+cAozyuJNzQ1NLewNDQ3Njc2s1AS5+0QOBgjJJCeWJKanZpakFoE08fEwSnVwLjA x0pO3KBY64Kd3eJjgXYPNlb/+lwtGfGs3jjv2ZbjK/g51ziudfayO/kyfcbUp4Ivnq1vUtnQ znQwOcs8sEfabt6HZOdKz4iadKZtEzIPNZx952bUfdavLmbnkXPfjj6L9/l/vPJV7P67nK45 m9pPfVh86VafpnfN6beO6mlKy1U3uCTovFZiKc5INNRiLipOBADiH/wougIAAA== X-CMS-MailID: 20191211145203eucas1p2aa9445d7b778451ff1da0e552ccdae18 X-Msg-Generator: CA X-RootMTR: 20191211145203eucas1p2aa9445d7b778451ff1da0e552ccdae18 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20191211145203eucas1p2aa9445d7b778451ff1da0e552ccdae18 References: <20191211145054.24835-1-m.szyprowski@samsung.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191211_065206_564302_7846AB50 X-CRM114-Status: GOOD ( 14.10 ) X-Spam-Score: -5.2 (-----) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-5.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [210.118.77.11 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.0 DKIMWL_WL_HIGH DKIMwl.org - Whitelisted High sender X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Stefan Agner , Bartlomiej Zolnierkiewicz , Greg Kroah-Hartman , Linus Walleij , Maxime Ripard , Bjorn Andersson , Chunfeng Yun , Chen-Yu Tsai , Andy Gross , Krzysztof Kozlowski , Matthias Brugger , Marek Szyprowski MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Current USB3503 driver ignores GPIO polarity and always operates as if the GPIO lines were flagged as ACTIVE_HIGH. Fix the polarity for the existing USB3503 chip applications to match the chip specification and common convention for naming the pins. The only pin, which has to be ACTIVE_LOW is the reset pin. The remaining are ACTIVE_HIGH. This change allows later to fix the USB3503 driver to properly use generic GPIO bindings and read polarity from DT. Signed-off-by: Marek Szyprowski --- arch/arm/boot/dts/exynos4412-odroid-common.dtsi | 2 +- arch/arm/boot/dts/exynos5250-arndale.dts | 2 +- arch/arm/boot/dts/exynos5410-odroidxu.dts | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi index ea55f377d17c..9c39e82e4ecb 100644 --- a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi +++ b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi @@ -267,7 +267,7 @@ intn-gpios = <&gpx3 0 GPIO_ACTIVE_HIGH>; connect-gpios = <&gpx3 4 GPIO_ACTIVE_HIGH>; - reset-gpios = <&gpx3 5 GPIO_ACTIVE_HIGH>; + reset-gpios = <&gpx3 5 GPIO_ACTIVE_LOW>; initial-mode = <1>; }; diff --git a/arch/arm/boot/dts/exynos5250-arndale.dts b/arch/arm/boot/dts/exynos5250-arndale.dts index d6c85efdb465..3eddf5dbcf7b 100644 --- a/arch/arm/boot/dts/exynos5250-arndale.dts +++ b/arch/arm/boot/dts/exynos5250-arndale.dts @@ -154,7 +154,7 @@ compatible = "smsc,usb3503a"; reset-gpios = <&gpx3 5 GPIO_ACTIVE_LOW>; - connect-gpios = <&gpd1 7 GPIO_ACTIVE_LOW>; + connect-gpios = <&gpd1 7 GPIO_ACTIVE_HIGH>; }; }; diff --git a/arch/arm/boot/dts/exynos5410-odroidxu.dts b/arch/arm/boot/dts/exynos5410-odroidxu.dts index e0db251e253f..4f9297ae0763 100644 --- a/arch/arm/boot/dts/exynos5410-odroidxu.dts +++ b/arch/arm/boot/dts/exynos5410-odroidxu.dts @@ -170,7 +170,7 @@ intn-gpios = <&gpx0 7 GPIO_ACTIVE_HIGH>; connect-gpios = <&gpx0 6 GPIO_ACTIVE_HIGH>; - reset-gpios = <&gpx1 4 GPIO_ACTIVE_HIGH>; + reset-gpios = <&gpx1 4 GPIO_ACTIVE_LOW>; initial-mode = <1>; clock-names = "refclk"; From patchwork Wed Dec 11 14:52:08 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marek Szyprowski X-Patchwork-Id: 11285277 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 0FE431593 for ; Wed, 11 Dec 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Wed, 11 Dec 2019 14:52:13 +0000 (GMT) Received: from AMDC2765.digital.local (unknown [106.120.51.73]) by eusmtip1.samsung.com (KnoxPortal) with ESMTPA id 20191211145213eusmtip1f8bac6888c5908f6393dfadf01ec598f~fWLXzNfb-1276212762eusmtip1N; Wed, 11 Dec 2019 14:52:13 +0000 (GMT) From: Marek Szyprowski To: linux-usb@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 2/4] ARM: dts: qcom: Correct USB3503 GPIOs polarity Date: Wed, 11 Dec 2019 15:52:08 +0100 Message-Id: <20191211145208.24976-1-m.szyprowski@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191211145054.24835-1-m.szyprowski@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA0WSe0hTYRjG+XbOzjkbzU5T9Esjc1Rg4A2NPii1oMv5IyKDwgTRmadpOZNN zYLInJc2LM07orbUNLxteU2peUldEWxeYBk2SyXpglbMDC9km8fsv9/7vO/zPS8vH4WJh/ju VHxiMqtIlCZICCHeObxs8qni/Yz0f1eII9PsKo6elun46E3vAo5yDJU4UtXoCGQ260lUtFbP 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X-CMS-RootMailID: 20191211145213eucas1p2c438f848ba705fa407331bb31b03b626 References: <20191211145054.24835-1-m.szyprowski@samsung.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191211_065216_048434_CF5C4CB4 X-CRM114-Status: GOOD ( 14.83 ) X-Spam-Score: -5.2 (-----) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-5.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [210.118.77.11 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.0 DKIMWL_WL_HIGH DKIMwl.org - Whitelisted High sender X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Stefan Agner , Bartlomiej Zolnierkiewicz , Greg Kroah-Hartman , Linus Walleij , Maxime Ripard , Bjorn Andersson , Chunfeng Yun , Chen-Yu Tsai , Andy Gross , Krzysztof Kozlowski , Matthias Brugger , Marek Szyprowski MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Current USB3503 driver ignores GPIO polarity and always operates as if the GPIO lines were flagged as ACTIVE_HIGH. Fix the polarity for the existing USB3503 chip applications to match the chip specification and common convention for naming the pins. The only pin, which has to be ACTIVE_LOW is the reset pin. The remaining are ACTIVE_HIGH. This change allows later to fix the USB3503 driver to properly use generic GPIO bindings and read polarity from DT. Signed-off-by: Marek Szyprowski Acked-by: Bjorn Andersson --- arch/arm/boot/dts/qcom-mdm9615-wp8548-mangoh-green.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/qcom-mdm9615-wp8548-mangoh-green.dts b/arch/arm/boot/dts/qcom-mdm9615-wp8548-mangoh-green.dts index 26160c324802..942e3a2cac35 100644 --- a/arch/arm/boot/dts/qcom-mdm9615-wp8548-mangoh-green.dts +++ b/arch/arm/boot/dts/qcom-mdm9615-wp8548-mangoh-green.dts @@ -143,7 +143,7 @@ compatible = "smsc,usb3503a"; reg = <0x8>; connect-gpios = <&gpioext2 1 GPIO_ACTIVE_HIGH>; - intn-gpios = <&gpioext2 0 GPIO_ACTIVE_LOW>; + intn-gpios = <&gpioext2 0 GPIO_ACTIVE_HIGH>; initial-mode = <1>; }; }; From patchwork Wed Dec 11 14:52:17 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marek Szyprowski X-Patchwork-Id: 11285293 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 06113109A for ; 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Wed, 11 Dec 2019 14:52:21 +0000 (GMT) From: Marek Szyprowski To: linux-usb@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 3/4] ARM: dts: sun8i: a83t: Correct USB3503 GPIOs polarity Date: Wed, 11 Dec 2019 15:52:17 +0100 Message-Id: <20191211145217.25025-1-m.szyprowski@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191211145054.24835-1-m.szyprowski@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA0VSa0gUURjl7szOjIsb4yp5U1HaXlikmYVXKlEIHOhHRYRgiW45qKmr7Khl JJpvJx9ZmYsmiYaWz1W39ZGorY8lNM0USVLxQWCCj1B8pGnujtm/893vfOec7+NSmKxbbEOF KKNYlVIRJickuK5no/90meiX3xn+yXnUP7OJozp1rRj1ti/gKK2tCEdJpbUEGhjQkOjFVrkI 1c+MiNFQyysCDSUNAqQeaBOhkrIUDFV3jZMoMdkVpWaUiVFDTRqJNvQDIk8LpnRtAmM005Vi prlgnGTqKzIIZmyklWDai6pIpuFNPJP8qR1nsrUVgFmut78m8ZVcDGTDQmJYlbNHgCR4wuAW mSN5MLNeJ0oAjRQPzChIn4Pbf/IJHkgoGf0WQN7QD4RiBcCUrjGRUCwD2DiWiPGAMo3kFgYI 7+UA9s1l4PsTlVMpmFGXoF0gP8+bdK3oKgA3s9QmFkb/xqBupJwwsizpq/DxTg4wYpw+BkvX NWIjltKX4LC2BwgJHWClpsOkakZ7QH61xiQE6WkSpi2lYQLpMszTGHMYsSWcM2hJAdvBnebX ImEgCcCp/mpSKDIBHEpU71lcgJ2GQbFxO4x2hLUtzsKiXnCw56AAD8Bv8xZGMrYLn+ny904h hempMkHjOCww1Oy7fvzydS8ZAzcWq/cOnAvgu5Ii7ClwKPjvVQxABbBmo7nwIJY7q2TvO3GK cC5aGeR0NyK8Hux+rt5tw0oTaNm6owc0BeTm0uLGRT+ZWBHDxYbrAaQwuZXUkLrgJ5MGKmIf sqoIf1V0GMvpgS2Fy62lriU//WR0kCKKDWXZSFb1ryuizGwSQL6b46NVaBiFNzoLOyy0ddeH h5YiO+L8lUfi/UmHMNJ9dMnTt3hS+7zge3fmIVn84flOe378qNrRK86/e/WKj/f4WnaozsIn 2b4vYtK28+bLWfPugA9Fs2OuWXY/zO7dykt2J5q26dZCwuU9R3p/vh2yNcumN/ZwVqeidOnt J+Q4F6xwOYmpOMVf+1GqIFgDAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrKIsWRmVeSWpSXmKPExsVy+t/xu7rLmD7GGuxbLWZx7vFvFouNM9az Wpze/47Fon3fXBaL5sXr2SzOn9/AbjHlz3Imi02Pr7FaXN41h83icvNFRosZ5/cxWSxa1sps sfbIXXaLphZji7bOZawWm9e1s1v8PHSeyUHQY/H3e8weGx6tZvXYOesuu8emVZ1sHneu7WHz 2D93DbvH5iX1Hi0n97N49G1ZxejxeZNcAFeUnk1RfmlJqkJGfnGJrVK0oYWRnqGlhZ6RiaWe obF5rJWRqZK+nU1Kak5mWWqRvl2CXsa94+YF/VwVj39sZGpg3M7RxcjBISFgIjFxdkIXIxeH kMBSRok1X3sYuxg5geIyEienNbBC2MISf651sYHYQgKfGCXWz/UEsdkEDCW63oLEuThEBDYw Spx5/4QFxGEWaGKRmDrrMRNIlbCAr8T+PUvBprIIqEos/rEBbCqvgK3ElS3HoLbJS6zecIAZ xOYUsJPo+raOBWKbrcSn221sExj5FjAyrGIUSS0tzk3PLTbSK07MLS7NS9dLzs/dxAiMom3H fm7Zwdj1LvgQowAHoxIP74Lt72OFWBPLiitzDzFKcDArifAeb3sXK8SbklhZlVqUH19UmpNa fIjRFOioicxSosn5wAjPK4k3NDU0t7A0NDc2NzazUBLn7RA4GCMkkJ5YkpqdmlqQWgTTx8TB KdXA6Lz8/uLv/+7KrHX1D+1eUBe14N2tqA0TtdbKa3zW+8Ar7/GjSOHjbbfnNha81hwmZ8+z nroteCq2OLSeWy1x7fUXGx4U6zPtFm74eNv/7GKbSet55s34ocQrvWvz/0cBByZWHvwnVPzi ZIPM+va9p6YH65xsnGfk8OOVR0CLfYmVjtG2P7dYDimxFGckGmoxFxUnAgCVn2aYuAIAAA== X-CMS-MailID: 20191211145222eucas1p1d761af59e04017ddadbdbd1cceb59b1f X-Msg-Generator: CA X-RootMTR: 20191211145222eucas1p1d761af59e04017ddadbdbd1cceb59b1f X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20191211145222eucas1p1d761af59e04017ddadbdbd1cceb59b1f References: <20191211145054.24835-1-m.szyprowski@samsung.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191211_065224_901492_8D93D7B1 X-CRM114-Status: GOOD ( 15.31 ) X-Spam-Score: -5.2 (-----) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-5.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [210.118.77.11 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.0 DKIMWL_WL_HIGH DKIMwl.org - Whitelisted High sender X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Stefan Agner , Bartlomiej Zolnierkiewicz , Greg Kroah-Hartman , Linus Walleij , Maxime Ripard , Bjorn Andersson , Chunfeng Yun , Chen-Yu Tsai , Andy Gross , Krzysztof Kozlowski , Matthias Brugger , Marek Szyprowski MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Current USB3503 driver ignores GPIO polarity and always operates as if the GPIO lines were flagged as ACTIVE_HIGH. Fix the polarity for the existing USB3503 chip applications to match the chip specification and common convention for naming the pins. The only pin, which has to be ACTIVE_LOW is the reset pin. The remaining are ACTIVE_HIGH. This change allows later to fix the USB3503 driver to properly use generic GPIO bindings and read polarity from DT. Signed-off-by: Marek Szyprowski Acked-by: Chen-Yu Tsai --- arch/arm/boot/dts/sun8i-a83t-cubietruck-plus.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/sun8i-a83t-cubietruck-plus.dts b/arch/arm/boot/dts/sun8i-a83t-cubietruck-plus.dts index fb928503ad45..d9be511f054f 100644 --- a/arch/arm/boot/dts/sun8i-a83t-cubietruck-plus.dts +++ b/arch/arm/boot/dts/sun8i-a83t-cubietruck-plus.dts @@ -101,7 +101,7 @@ initial-mode = <1>; /* initialize in HUB mode */ disabled-ports = <1>; intn-gpios = <&pio 7 5 GPIO_ACTIVE_HIGH>; /* PH5 */ - reset-gpios = <&pio 4 16 GPIO_ACTIVE_HIGH>; /* PE16 */ + reset-gpios = <&pio 4 16 GPIO_ACTIVE_LOW>; /* PE16 */ connect-gpios = <&pio 4 17 GPIO_ACTIVE_HIGH>; /* PE17 */ refclk-frequency = <19200000>; }; From patchwork Wed Dec 11 14:52:26 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marek Szyprowski X-Patchwork-Id: 11285297 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4F00C109A for ; 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Wed, 11 Dec 2019 14:52:30 +0000 (GMT) From: Marek Szyprowski To: linux-usb@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 4/4] usb: usb3503: Convert to use GPIO descriptors Date: Wed, 11 Dec 2019 15:52:26 +0100 Message-Id: <20191211145226.25074-1-m.szyprowski@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191211145054.24835-1-m.szyprowski@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA0VSbUhTYRjtvfdu97q8dZuWbyoJ04oiP0p/vFBJQdEFiYqQPmjVzS4qbdN2 tTIKl1/psLAvnCtTpmi41DVl5QitZY6UnGZZP9qkNMpKLbSPVWTOu+rfOec55zkvLw+Fy52S UCpdk8VrNZxKIZURti6vK7oZ+6yM6/oSh3qHfxLolqFZgno6xgl0tr2SQPk1zVLkcllIdPlX PYasw4MSNGC/JkUD+f0AGVztGDLVFeKosdNNoryCeFRUUidBLU1nSeR1uLANC9iabx6ctbw2 S9g2o5tkrQ0lUvbl4F0p21F5k2RbanPZgkcdBHu+tQGwk9Yl22V7ZesO86r0Y7w2NvGgLK11 2EZmVsWd+No9ItEB53I9CKAgkwCN7W9JPZBRcuYGgNPecj+ZAvD89wmpSCYBHPU+wP5GfvcU A3FQD+C3kRfEv8jHztJZl5RZDfVj+tl4MHMTwJ/nDLMunPmBQ9tgvdTnCmI2w+KmfokeUBTB LIWXdFE+mWbWw/F3X/x1EdBsuYf7cACTCPVfm2b3QMZDwrc6CyGaNsFnFWYg4iD43tlKijgc TrdVYWIgH8BXvY2kSEoBHMgz+BNr4QOn+AqcWQGb7bGivBG6XX2kT4bMPPhibIFPxmfgRVs5 Lso0LC6Si+5l0Ohs+ld7v+8JLmIWjr0Z8X/qBQB7Hk9iZSDC+L+sGoAGEMJnC+pUXlij4Y/H CJxayNakxqRkqK1g5rx6fjun7gD7r0MOwFBAEUhX355QyiXcMSFH7QCQwhXBtLNoXCmnD3M5 J3ltxgFttooXHCCMIhQhdLxpVClnUrks/gjPZ/Lav1OMCgjVgZxF8bmh+zdsNqmcIQ7OfCUJ O+05NWydjKwtCxvN3b4wKqlqzu2I3YGmwsiq8aHd7+d/oqe9arB8bvIOYVsFHbuTdBt2bY36 3pj5NFl5JuVhRMLJzIK+xXn20x/o50MtXFr6vsIwY2G4fm709bCSikVBsYqrezo0qd1HPcSq ZVtcCkJI41avxLUC9wcefK5VWgMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrOIsWRmVeSWpSXmKPExsVy+t/xu7rrmT7GGtzbJmlx7vFvFouNM9az Wpze/47Fon3fXBaL5sXr2SzOn9/AbjHlz3Imi02Pr7FaXN41h83icvNFRosZ5/cxWSxa1sps sfbIXXaLphZji7bOZawWm9e1s1v8PHSeyUHQY/H3e8weGx6tZvXYOesuu8emVZ1sHneu7WHz 2D93DbvH5iX1Hi0n97N49G1ZxejxeZNcAFeUnk1RfmlJqkJGfnGJrVK0oYWRnqGlhZ6RiaWe obF5rJWRqZK+nU1Kak5mWWqRvl2CXsaWx9vYC+YbVHw79YS1gfG4ehcjJ4eEgInEv9MdjF2M XBxCAksZJfacOskMkZCRODmtgRXCFpb4c62LDaLoE6NEx915jCAJNgFDia63EAkRgQ2MEmfe P2EBcZgFmlgkps56zARSJSzgKtGx7iLQKA4OFgFVickNKiBhXgFbiXcvvjJBbJCXWL3hANhm TgE7ia5v61hAbCGgmk+329gmMPItYGRYxSiSWlqcm55bbKhXnJhbXJqXrpecn7uJERhJ2479 3LyD8dLG4EOMAhyMSjy8C7a/jxViTSwrrsw9xCjBwawkwnu87V2sEG9KYmVValF+fFFpTmrx IUZToJsmMkuJJucDozyvJN7Q1NDcwtLQ3Njc2MxCSZy3Q+BgjJBAemJJanZqakFqEUwfEwen VAOjR/2TMxUGveEMRbwyb9b13JF/s3SmYdfz5wkFoRYaKlpFky7usv/mGrKtx8eQQeifyOG0 4p/mht+UJp3K//F7XmHPrDlHfz/a1Gy87fObF7XHi6zv/8kIMuF573ecY4mpWiHbf+VmhV6H 4xr+Nx155WudUjZ9FzF6aHj3mIL094h10adVeR8rsRRnJBpqMRcVJwIADZ77troCAAA= X-CMS-MailID: 20191211145231eucas1p29d4e0ed105274c79682b48a613b45904 X-Msg-Generator: CA X-RootMTR: 20191211145231eucas1p29d4e0ed105274c79682b48a613b45904 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20191211145231eucas1p29d4e0ed105274c79682b48a613b45904 References: <20191211145054.24835-1-m.szyprowski@samsung.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191211_065233_963747_19D7CA54 X-CRM114-Status: GOOD ( 18.48 ) X-Spam-Score: -5.2 (-----) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-5.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [210.118.77.11 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.0 DKIMWL_WL_HIGH DKIMwl.org - Whitelisted High sender X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Stefan Agner , Bartlomiej Zolnierkiewicz , Greg Kroah-Hartman , Linus Walleij , Maxime Ripard , Bjorn Andersson , Chunfeng Yun , Chen-Yu Tsai , Andy Gross , Krzysztof Kozlowski , Matthias Brugger , Marek Szyprowski MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Linus Walleij This converts the USB3503 to pick GPIO descriptors from the device tree instead of iteratively picking out GPIO number references and then referencing these from the global GPIO numberspace. The USB3503 is only used from device tree among the in-tree platforms. If board files would still desire to use it they can provide machine descriptor tables. Make sure to preserve semantics such as the reset delay introduced by Stefan. Cc: Chunfeng Yun Cc: Marek Szyprowski Cc: Stefan Agner Cc: Krzysztof Kozlowski Signed-off-by: Linus Walleij [mszyprow: invert the logic behind reset GPIO line] Signed-off-by: Marek Szyprowski --- drivers/usb/misc/usb3503.c | 94 ++++++++++----------------- include/linux/platform_data/usb3503.h | 3 - 2 files changed, 35 insertions(+), 62 deletions(-) diff --git a/drivers/usb/misc/usb3503.c b/drivers/usb/misc/usb3503.c index 72f39a9751b5..116bd789e568 100644 --- a/drivers/usb/misc/usb3503.c +++ b/drivers/usb/misc/usb3503.c @@ -7,11 +7,10 @@ #include #include -#include +#include #include #include #include -#include #include #include #include @@ -47,19 +46,19 @@ struct usb3503 { struct device *dev; struct clk *clk; u8 port_off_mask; - int gpio_intn; - int gpio_reset; - int gpio_connect; + struct gpio_desc *intn; + struct gpio_desc *reset; + struct gpio_desc *connect; bool secondary_ref_clk; }; static int usb3503_reset(struct usb3503 *hub, int state) { - if (!state && gpio_is_valid(hub->gpio_connect)) - gpio_set_value_cansleep(hub->gpio_connect, 0); + if (!state && hub->connect) + gpiod_set_value_cansleep(hub->connect, 0); - if (gpio_is_valid(hub->gpio_reset)) - gpio_set_value_cansleep(hub->gpio_reset, state); + if (hub->reset) + gpiod_set_value_cansleep(hub->reset, !state); /* Wait T_HUBINIT == 4ms for hub logic to stabilize */ if (state) @@ -115,8 +114,8 @@ static int usb3503_connect(struct usb3503 *hub) } } - if (gpio_is_valid(hub->gpio_connect)) - gpio_set_value_cansleep(hub->gpio_connect, 1); + if (hub->connect) + gpiod_set_value_cansleep(hub->connect, 1); hub->mode = USB3503_MODE_HUB; dev_info(dev, "switched to HUB mode\n"); @@ -163,13 +162,11 @@ static int usb3503_probe(struct usb3503 *hub) int err; u32 mode = USB3503_MODE_HUB; const u32 *property; + enum gpiod_flags flags; int len; if (pdata) { hub->port_off_mask = pdata->port_off_mask; - hub->gpio_intn = pdata->gpio_intn; - hub->gpio_connect = pdata->gpio_connect; - hub->gpio_reset = pdata->gpio_reset; hub->mode = pdata->initial_mode; } else if (np) { u32 rate = 0; @@ -230,59 +227,38 @@ static int usb3503_probe(struct usb3503 *hub) } } - hub->gpio_intn = of_get_named_gpio(np, "intn-gpios", 0); - if (hub->gpio_intn == -EPROBE_DEFER) - return -EPROBE_DEFER; - hub->gpio_connect = of_get_named_gpio(np, "connect-gpios", 0); - if (hub->gpio_connect == -EPROBE_DEFER) - return -EPROBE_DEFER; - hub->gpio_reset = of_get_named_gpio(np, "reset-gpios", 0); - if (hub->gpio_reset == -EPROBE_DEFER) - return -EPROBE_DEFER; of_property_read_u32(np, "initial-mode", &mode); hub->mode = mode; } - if (hub->port_off_mask && !hub->regmap) - dev_err(dev, "Ports disabled with no control interface\n"); - - if (gpio_is_valid(hub->gpio_intn)) { - int val = hub->secondary_ref_clk ? GPIOF_OUT_INIT_LOW : - GPIOF_OUT_INIT_HIGH; - err = devm_gpio_request_one(dev, hub->gpio_intn, val, - "usb3503 intn"); - if (err) { - dev_err(dev, - "unable to request GPIO %d as interrupt pin (%d)\n", - hub->gpio_intn, err); - return err; - } - } - - if (gpio_is_valid(hub->gpio_connect)) { - err = devm_gpio_request_one(dev, hub->gpio_connect, - GPIOF_OUT_INIT_LOW, "usb3503 connect"); - if (err) { - dev_err(dev, - "unable to request GPIO %d as connect pin (%d)\n", - hub->gpio_connect, err); - return err; - } - } - - if (gpio_is_valid(hub->gpio_reset)) { - err = devm_gpio_request_one(dev, hub->gpio_reset, - GPIOF_OUT_INIT_LOW, "usb3503 reset"); + if (hub->secondary_ref_clk) + flags = GPIOD_OUT_LOW; + else + flags = GPIOD_OUT_HIGH; + hub->intn = devm_gpiod_get_optional(dev, "intn", flags); + if (IS_ERR(hub->intn)) + return PTR_ERR(hub->intn); + if (hub->intn) + gpiod_set_consumer_name(hub->intn, "usb3503 intn"); + + hub->connect = devm_gpiod_get_optional(dev, "connect", GPIOD_OUT_LOW); + if (IS_ERR(hub->connect)) + return PTR_ERR(hub->connect); + if (hub->connect) + gpiod_set_consumer_name(hub->connect, "usb3503 connect"); + + hub->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH); + if (IS_ERR(hub->reset)) + return PTR_ERR(hub->reset); + if (hub->reset) { /* Datasheet defines a hardware reset to be at least 100us */ usleep_range(100, 10000); - if (err) { - dev_err(dev, - "unable to request GPIO %d as reset pin (%d)\n", - hub->gpio_reset, err); - return err; - } + gpiod_set_consumer_name(hub->reset, "usb3503 reset"); } + if (hub->port_off_mask && !hub->regmap) + dev_err(dev, "Ports disabled with no control interface\n"); + usb3503_switch_mode(hub, hub->mode); dev_info(dev, "%s: probed in %s mode\n", __func__, diff --git a/include/linux/platform_data/usb3503.h b/include/linux/platform_data/usb3503.h index e049d51c1353..d01ef97ddf36 100644 --- a/include/linux/platform_data/usb3503.h +++ b/include/linux/platform_data/usb3503.h @@ -17,9 +17,6 @@ enum usb3503_mode { struct usb3503_platform_data { enum usb3503_mode initial_mode; u8 port_off_mask; - int gpio_intn; - int gpio_connect; - int gpio_reset; }; #endif