From: Wolfram Sang <wsa+renesas@sang-engineering.com>
To: linux-mmc@vger.kernel.org
Cc: linux-renesas-soc@vger.kernel.org,
Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>,
Wolfram Sang <wsa+renesas@sang-engineering.com>
Subject: [RFC PATCH v2 0/2] mmc: renesas_sdhi: reset via reset controller
Date: Mon, 22 Feb 2021 12:39:53 +0100 [thread overview]
Message-ID: <20210222113955.7779-1-wsa+renesas@sang-engineering.com> (raw)
This series enables SDHI to be reset via a reset controller.
Please let me know about your (and BSP team's) thoughts.
Changes since (internal) RFC v1:
* moved from probe() to the reset() callback so we use it for every
reset, not only when initializing
* patch 1 is new to make sure aborting DMA will work
* added a comment about (unexpected) polling for the reset status
* don't use atomic version for polling; reset is not a hot path
Wolfram Sang (2):
mmc: tmio: abort DMA before reset
mmc: renesas_sdhi: do hard reset if possible
drivers/mmc/host/renesas_sdhi.h | 2 ++
drivers/mmc/host/renesas_sdhi_core.c | 13 ++++++++++++-
drivers/mmc/host/tmio_mmc_core.c | 4 ++--
3 files changed, 16 insertions(+), 3 deletions(-)
--
2.30.0
next reply other threads:[~2021-02-22 11:41 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-22 11:39 Wolfram Sang [this message]
2021-02-22 11:39 ` [RFC PATCH v2 1/2] mmc: tmio: abort DMA before reset Wolfram Sang
2021-02-22 11:39 ` [RFC PATCH v2 2/2] mmc: renesas_sdhi: do hard reset if possible Wolfram Sang
2021-02-23 10:06 ` Geert Uytterhoeven
2021-02-23 10:17 ` Wolfram Sang
2021-02-23 10:20 ` Geert Uytterhoeven
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