From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:58408 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751587AbdDJQHK (ORCPT ); Mon, 10 Apr 2017 12:07:10 -0400 Subject: Patch "can: flexcan: add quirk FLEXCAN_QUIRK_ENABLE_EACEN_RRS" has been added to the 4.9-stable tree To: gregkh@linuxfoundation.org, alexander.levin@verizon.com, mkl@pengutronix.de, stable@vger.kernel.org Cc: , From: Date: Mon, 10 Apr 2017 18:06:14 +0200 In-Reply-To: <20170404193158.19041-99-alexander.levin@verizon.com> Message-ID: <1491840374231110@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled can: flexcan: add quirk FLEXCAN_QUIRK_ENABLE_EACEN_RRS to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: can-flexcan-add-quirk-flexcan_quirk_enable_eacen_rrs.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From foo@baz Mon Apr 10 17:43:56 CEST 2017 From: alexander.levin@verizon.com Date: Tue, 4 Apr 2017 19:32:39 +0000 Subject: can: flexcan: add quirk FLEXCAN_QUIRK_ENABLE_EACEN_RRS To: "gregkh@linuxfoundation.org" Cc: "stable@vger.kernel.org" Message-ID: <20170404193158.19041-99-alexander.levin@verizon.com> From: Marc Kleine-Budde [ Upstream commit 9eb7aa891101a4a09114ff3191f9877ea35eae06 ] In order to receive RTR frames in the non HW FIFO mode the RSS and EACEN bits of the reg_ctrl2 have to be activated. As this has no side effect in the FIFO mode, we do this unconditionally on cores with the reg_ctrl2. Signed-off-by: Marc Kleine-Budde Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/net/can/flexcan.c | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-) --- a/drivers/net/can/flexcan.c +++ b/drivers/net/can/flexcan.c @@ -189,7 +189,8 @@ */ #define FLEXCAN_QUIRK_BROKEN_ERR_STATE BIT(1) /* [TR]WRN_INT not connected */ #define FLEXCAN_QUIRK_DISABLE_RXFG BIT(2) /* Disable RX FIFO Global mask */ -#define FLEXCAN_QUIRK_DISABLE_MECR BIT(3) /* Disble Memory error detection */ +#define FLEXCAN_QUIRK_ENABLE_EACEN_RRS BIT(3) /* Enable EACEN and RRS bit in ctrl2 */ +#define FLEXCAN_QUIRK_DISABLE_MECR BIT(4) /* Disble Memory error detection */ /* Structure of the message buffer */ struct flexcan_mb { @@ -268,12 +269,13 @@ static struct flexcan_devtype_data fsl_p static struct flexcan_devtype_data fsl_imx28_devtype_data; -static struct flexcan_devtype_data fsl_imx6q_devtype_data = { - .quirks = FLEXCAN_QUIRK_DISABLE_RXFG, +static const struct flexcan_devtype_data fsl_imx6q_devtype_data = { + .quirks = FLEXCAN_QUIRK_DISABLE_RXFG | FLEXCAN_QUIRK_ENABLE_EACEN_RRS, }; -static struct flexcan_devtype_data fsl_vf610_devtype_data = { - .quirks = FLEXCAN_QUIRK_DISABLE_RXFG | FLEXCAN_QUIRK_DISABLE_MECR, +static const struct flexcan_devtype_data fsl_vf610_devtype_data = { + .quirks = FLEXCAN_QUIRK_DISABLE_RXFG | FLEXCAN_QUIRK_ENABLE_EACEN_RRS | + FLEXCAN_QUIRK_DISABLE_MECR, }; static const struct can_bittiming_const flexcan_bittiming_const = { @@ -883,6 +885,12 @@ static int flexcan_chip_start(struct net netdev_dbg(dev, "%s: writing ctrl=0x%08x", __func__, reg_ctrl); flexcan_write(reg_ctrl, ®s->ctrl); + if ((priv->devtype_data->quirks & FLEXCAN_QUIRK_ENABLE_EACEN_RRS)) { + reg_ctrl2 = flexcan_read(®s->ctrl2); + reg_ctrl2 |= FLEXCAN_CTRL2_EACEN | FLEXCAN_CTRL2_RRS; + flexcan_write(reg_ctrl2, ®s->ctrl2); + } + /* clear and invalidate all mailboxes first */ for (i = FLEXCAN_TX_BUF_ID; i < ARRAY_SIZE(regs->mb); i++) { flexcan_write(FLEXCAN_MB_CODE_RX_INACTIVE, Patches currently in stable-queue which might be from gregkh@linuxfoundation.org are queue-4.9/staging-android-ashmem-lseek-failed-due-to-no-fmode_lseek.patch queue-4.9/arm64-dts-hisi-fix-hip06-sas-am-max-trans-quirk.patch queue-4.9/scsi-ufs-introduce-ufshcd_quirk_prdt_byte_gran-quirk.patch queue-4.9/acpi-button-change-default-behavior-to-lid_init_state-open.patch queue-4.9/usb-musb-da8xx-fix-host-mode-suspend.patch queue-4.9/drm-i915-fix-intel_bdw_ids-definition.patch queue-4.9/sysfs-be-careful-of-error-returns-from-ops-show.patch queue-4.9/mips-flush-wrong-invalid-ftlb-entry-for-huge-page.patch queue-4.9/mips-end-spinlocks-with-.insn.patch queue-4.9/mmc-sdhci-of-esdhc-remove-default-broken-cd-for-arm.patch queue-4.9/kvm-arm-arm64-fix-locking-for-kvm_free_stage2_pgd.patch queue-4.9/powerpc-disable-hfscr-if-tm-is-not-supported.patch queue-4.9/metag-usercopy-add-missing-fixups.patch queue-4.9/nios2-reserve-boot-memory-for-device-tree.patch 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