From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754977AbcA2COz (ORCPT ); Thu, 28 Jan 2016 21:14:55 -0500 Received: from youngberry.canonical.com ([91.189.89.112]:60892 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752466AbcA2BUe (ORCPT ); Thu, 28 Jan 2016 20:20:34 -0500 From: Kamal Mostafa To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Adrian Hunter , Ulf Hansson , Kamal Mostafa Subject: [PATCH 3.19.y-ckt 033/210] mmc: sdio: Fix invalid vdd in voltage switch power cycle Date: Thu, 28 Jan 2016 17:16:11 -0800 Message-Id: <1454030348-17736-34-git-send-email-kamal@canonical.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1454030348-17736-1-git-send-email-kamal@canonical.com> References: <1454030348-17736-1-git-send-email-kamal@canonical.com> X-Extended-Stable: 3.19 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.19.8-ckt14 -stable review patch. If anyone has any objections, please let me know. ---8<------------------------------------------------------------ From: Adrian Hunter commit d9bfbb95ed598a09cf336adb0f190ee0ff802f0d upstream. The 'ocr' parameter passed to mmc_set_signal_voltage() defines the power-on voltage used when power cycling after a failure to set the voltage. However, in the case of mmc_sdio_init_card(), the value passed has the R4_18V_PRESENT flag set which is not valid for power-on and results in an invalid vdd. Fix by passing the card's ocr value which does not have the flag. Signed-off-by: Adrian Hunter Signed-off-by: Ulf Hansson Signed-off-by: Kamal Mostafa --- drivers/mmc/core/sdio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c index fd0750b..5eb58af 100644 --- a/drivers/mmc/core/sdio.c +++ b/drivers/mmc/core/sdio.c @@ -669,7 +669,7 @@ try_again: */ if (!powered_resume && (rocr & ocr & R4_18V_PRESENT)) { err = mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180, - ocr); + ocr_card); if (err == -EAGAIN) { sdio_reset(host); mmc_go_idle(host); -- 1.9.1