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received-spf: None (protection.outlook.com: microsoft.com does not designate permitted sender hosts) authentication-results: spf=none (sender IP is ) smtp.mailfrom=Alexander.Levin@microsoft.com; x-microsoft-antispam-message-info: JU9OXHzitBTZYokuO8NH9C/fVxz1XFT8wgJqfX/5PXyUu5Yf2qDZyk7mB8qskO9wq4MSHFwhxDqOr61yiN9/od6gIauyGPCt4WGqCxD6OOx3F33n++jPUq/gdZETPGrapK8G6zOqgA8OfMf0NMuISosZghmEf7aUG8Y5DauCvFJ5oJgGjgdLx/6eeIP+7P81Uyes0Kziq72wqKBeAudYi2N4y0MDWLyFKuZ9cP5wHa43FT0m+wD5WXAG6MmY2Sog0dd59vS7u3PAamhndfxJUoZKNuRiXLTUAfhZ0dWSPvop1qZUu6dorQ3haUCW7JSMOlnuXZCR3NUDoMFzqg+HjTR1+VryUtwaAldKLZe4YZI= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: 76b571a3-930e-4cc0-804e-08d6145a5194 X-MS-Exchange-CrossTenant-originalarrivaltime: 07 Sep 2018 00:38:02.0490 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY4PR21MB0695 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Bhushan Shah [ Upstream commit 03864e57770a9541e7ff3990bacf2d9a2fffcd5d ] The kernel would not boot on the hammerhead hardware due to the following error: mmc0: Timeout waiting for hardware interrupt. mmc0: sdhci: =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D SDHCI REGISTER DUMP =3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D mmc0: sdhci: Sys addr: 0x00000200 | Version: 0x00003802 mmc0: sdhci: Blk size: 0x00000200 | Blk cnt: 0x00000200 mmc0: sdhci: Argument: 0x00000000 | Trn mode: 0x00000023 mmc0: sdhci: Present: 0x03e80000 | Host ctl: 0x00000034 mmc0: sdhci: Power: 0x00000001 | Blk gap: 0x00000000 mmc0: sdhci: Wake-up: 0x00000000 | Clock: 0x00000007 mmc0: sdhci: Timeout: 0x0000000e | Int stat: 0x00000000 mmc0: sdhci: Int enab: 0x02ff900b | Sig enab: 0x02ff100b mmc0: sdhci: AC12 err: 0x00000000 | Slot int: 0x00000000 mmc0: sdhci: Caps: 0x642dc8b2 | Caps_1: 0x00008007 mmc0: sdhci: Cmd: 0x00000c1b | Max curr: 0x00000000 mmc0: sdhci: Resp[0]: 0x00000c00 | Resp[1]: 0x00000000 mmc0: sdhci: Resp[2]: 0x00000000 | Resp[3]: 0x00000000 mmc0: sdhci: Host ctl2: 0x00000008 mmc0: sdhci: ADMA Err: 0x00000000 | ADMA Ptr: 0x70040220 mmc0: sdhci: =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D mmc0: Card stuck in wrong state! mmcblk0 card_busy_detect status: 0xe00 mmc0: cache flush error -110 mmc0: Reset 0x1 never completed. This patch increases the load on l20 to 0.2 amps for the sdhci and allows the device to boot normally. Signed-off-by: Bhushan Shah Signed-off-by: Brian Masney Suggested-by: Bjorn Andersson Tested-by: Brian Masney Signed-off-by: Andy Gross Signed-off-by: Sasha Levin --- arch/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts b/arc= h/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts index 4dc0b347b1ee..c2dc9d09484a 100644 --- a/arch/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts +++ b/arch/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts @@ -189,6 +189,8 @@ regulator-max-microvolt =3D <2950000>; =20 regulator-boot-on; + regulator-system-load =3D <200000>; + regulator-allow-set-load; }; =20 l21 { --=20 2.17.1