From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752828AbcGTCe1 (ORCPT ); Tue, 19 Jul 2016 22:34:27 -0400 Received: from mail-pa0-f44.google.com ([209.85.220.44]:35776 "EHLO mail-pa0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752517AbcGTCeZ (ORCPT ); Tue, 19 Jul 2016 22:34:25 -0400 From: Andrey Pronin To: Jarkko Sakkinen Cc: Peter Huewe , Marcel Selhorst , Jason Gunthorpe , tpmdd-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, Christophe Ricard , Andrey Pronin Subject: [PATCH v2 2/2] tpm_tis_spi: add max xfer size Date: Tue, 19 Jul 2016 19:34:20 -0700 Message-Id: X-Mailer: git-send-email 2.8.0.rc3.226.g39d4020 In-Reply-To: References: <1468546745-14646-1-git-send-email-apronin@chromium.org> In-Reply-To: References: <1468546745-14646-1-git-send-email-apronin@chromium.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Reject burstcounts larger than 64 bytes reported by tpm. SPI Hardware Protocol defined in section 6.4 of TCG PTP Spec supports up to 64 bytes of data in a transaction. Signed-off-by: Andrey Pronin --- drivers/char/tpm/tpm_tis_spi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/char/tpm/tpm_tis_spi.c b/drivers/char/tpm/tpm_tis_spi.c index dbaad9c..b103373 100644 --- a/drivers/char/tpm/tpm_tis_spi.c +++ b/drivers/char/tpm/tpm_tis_spi.c @@ -206,6 +206,7 @@ static const struct tpm_tis_phy_ops tpm_spi_phy_ops = { .read16 = tpm_tis_spi_read16, .read32 = tpm_tis_spi_read32, .write32 = tpm_tis_spi_write32, + .max_xfer_size = MAX_SPI_FRAMESIZE, }; static int tpm_tis_spi_probe(struct spi_device *dev) -- 2.6.6