From: Bhaumik Bhatt <bbhatt@codeaurora.org>
To: manivannan.sadhasivam@linaro.org
Cc: linux-arm-msm@vger.kernel.org, hemantk@codeaurora.org,
linux-kernel@vger.kernel.org, loic.poulain@linaro.org,
quic_jhugo@quicinc.com, Bhaumik Bhatt <bbhatt@codeaurora.org>
Subject: [PATCH v2 0/2] MHI MMIO register write updates
Date: Thu, 19 Aug 2021 10:15:52 -0700 [thread overview]
Message-ID: <1629393354-20769-1-git-send-email-bbhatt@codeaurora.org> (raw)
In case of MHI MMIO writes, the register field write function needs to do reads
before writes are performed. Propagate read failures such that callers are made
aware of those and can take appropriate action instead of running blind.
Optimizing the MMIO initialization function to use mhi_write_reg() in most cases
should also be done to improve design.
These patches were tested on X86_64 architecture with Ubuntu 18.04 and SDX65
attach.
v2:
-Fix testbot reported missing set of changes from pm.c
Bhaumik Bhatt (2):
bus: mhi: core: Bail on writing register fields if read fails
bus: mhi: core: Optimize and update MMIO register write method
drivers/bus/mhi/core/boot.c | 25 ++++++++++-----
drivers/bus/mhi/core/init.c | 70 +++++++++++++++++++++++------------------
drivers/bus/mhi/core/internal.h | 7 +++--
drivers/bus/mhi/core/main.c | 9 ++++--
drivers/bus/mhi/core/pm.c | 18 ++++++++---
5 files changed, 80 insertions(+), 49 deletions(-)
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
next reply other threads:[~2021-08-19 17:16 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-19 17:15 Bhaumik Bhatt [this message]
2021-08-19 17:15 ` [PATCH v2 1/2] bus: mhi: core: Bail on writing register fields if read fails Bhaumik Bhatt
2021-08-19 17:15 ` [PATCH v2 2/2] bus: mhi: core: Optimize and update MMIO register write method Bhaumik Bhatt
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