From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dmitry Osipenko Subject: [PATCH v1 0/3] Tegra I2C: Support atomic transfers and correct suspend/resume Date: Fri, 13 Dec 2019 02:34:25 +0300 Message-ID: <20191212233428.14648-1-digetx@gmail.com> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: Sender: linux-kernel-owner@vger.kernel.org To: Thierry Reding , Jonathan Hunter , Laxman Dewangan , Wolfram Sang Cc: linux-i2c@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: linux-tegra@vger.kernel.org Hello, This patchset adds support for atomic transfers which are required for shutting down machine properly. Secondly, a (not)suspending I2C is fixed by this small series as well. Changelog: v1: The "i2c: tegra: Support atomic transfers" previously was sent out as a separate patch, but later I spotted that suspend/resume doesn't work properly. The "i2c: tegra: Fix suspending in active runtime PM state" patch depends on the atomic patch because there is a need to active IRQ-safe mode for the runtime PM by both patches. I fixed a missed doc-comment of the newly added "is_curr_atomic_xfer" structure field and added additional comment that explains why IRQ needs to be disabled for the atomic transfer in the "Support atomic transfers" patch. Lastly, I added a minor "i2c: tegra: Rename .." patch that helps to follow driver's code. Dmitry Osipenko (3): i2c: tegra: Support atomic transfers i2c: tegra: Rename I2C_PIO_MODE_MAX_LEN to I2C_PIO_MODE_PREFERRED_LEN i2c: tegra: Fix suspending in active runtime PM state drivers/i2c/busses/i2c-tegra.c | 113 +++++++++++++++++++++++++++++---- 1 file changed, 101 insertions(+), 12 deletions(-) -- 2.24.0