Return-Path: Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 11.5 \(3445.9.1\)) Subject: Re: [PATCH v10 0/3] add support for Bluetooth on MT7622 SoC From: Marcel Holtmann In-Reply-To: Date: Tue, 7 Aug 2018 21:36:32 +0200 Cc: robh+dt@kernel.org, mark.rutland@arm.com, Johan Hedberg , devicetree@vger.kernel.org, linux-bluetooth@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org Message-Id: <69A04F99-C0B8-4571-8A0C-2DAFDAB51D86@holtmann.org> References: To: sean.wang@mediatek.com Sender: linux-kernel-owner@vger.kernel.org List-ID: Hi Sean, > v10 and changes since v9: > - Add a fixup that is __be16 is required instead of dlen1 + dlen2 in STP header. > - Align a few one-line comments style as they're made in v9 > - Fix two warnings catched by checkpatch.pl > WARNING:TYPO_SPELLING: 'specifc' may be misspelled - perhaps 'specific'? > at 248: FILE: drivers/bluetooth/btmtkuart.c:186: > > WARNING:MEMORY_BARRIER: memory barrier without comment > at 260: FILE: drivers/bluetooth/btmtkuart.c:198: > > v9 and changes since v8: > - Marcel Holtmann helps to add v9, which includes did a bunch of cosmetic minor cleanup, > spelling correction and added __hci_cmd_send and its event synchronization scheme. > For details, they can be found in [1]. > > [1] http://lists.infradead.org/pipermail/linux-mediatek/2018-August/014587.html > > v8 and changes since v7: > - add updates per these suggestions mentioned in [1][2] > - remove the hack atomic_inc(&hdev->cmd_cnt) mentioned in [2] because it should > be better to be considered in the core > > [1] http://lists.infradead.org/pipermail/linux-mediatek/2018-August/014516.html > [2] http://lists.infradead.org/pipermail/linux-mediatek/2018-August/014518.html > > v7 and changes since v6: > - drop already applied patches > - move clk_* and pm_* operation to ->open and ->close > - label this driver as BT_MTKUART > - make code style aligned with the other drivers and code better to read > as these suggestions and fixes are mentioned in [1] > > [1] http://lists.infradead.org/pipermail/linux-mediatek/2018-July/014458.html > > v6 and changes since v5: > - make btmtkuart become a separate driver. > - drop already applied patches and the patch for btuart driver > - refine comments in driver allowing people know that mtk extra header > + length doesn't indicate a full H:4 frame, things can fragment. > - enhance dt-binding document with removing mistaken added " and improve > English sentence. > - remove unnecessary '\n' with bt_dev_err. > - refine code style. > - set hdev->manufacturer as mtk id. > > v5 and changes since v4: > - add Reviewed-by Tag from Ulf Hansson for patch 2 > - remove default y in Kconfig for btmtkuart selection to avoid overkill for > users which would like to have less an amount on stuff in kernel. > - list header declarations in alphabetical order and add a proper blank line > within. > - remove unused macro. > - use sizeof to calculate structure size instead of an aextra macro to hardcode. > - use struct hci_dev * as input paraments for mtk_hci_wmt_sync and mtk_setup_fw > for that can be reused in mtk bluetooth with other interfaces. > - remove unused local variabled in mtk_btuart_recv. > - remove superfluous :8 for dlen2 in struct mtk_stp_hdr definition. > - give a reasonable naming for these labels and add a pm_runtime_put_noidle() > in the path undoing failing pm_runtime_get_sync(). > - Turn __u8 into u8 in struct mtk_stp_hdr. > > Really thanks for these reviews by Johan Hovold and Andy Shevchenko > > v4 and changes since v3: > - refine patch 2 based on commit 919b7308fcc4 to allow that > dev_pm_domain_attach() will return better error codes. > > v3 and changes since v2 > * all changes happen on patch 6 > - fix up SPDX license style for btmtkuart.h. > - change firmware download from in ACL data to in HCI commands > and then remove unused mtk_acl_wmt_sync and related code. > - add a workaround replacing bad vendor event id 0xe4 with 0xff every > vendor should use. > - add a sanity check for mtk_hci_wmt_sync to verifying if > input parameters are valid. > - add an atomic_inc(&bdev->hdev->cmd_cnt) for __hci_cmd_sync_ev. > - be changed to use firmware with a header called mt7622pr2h.bin. > > v2 and changes since v1 > - Dropped patches already being applied > - Rewirte the whole driver using btuart [1], and add slight extension > of btuart to fit into btmtkuart driver. Beware that [1] is also pulled > into one part of the series for avoiding any breakage when the patchset > is being compiled. > > [1] btuart > https://www.spinics.net/lists/linux-bluetooth/msg74918.html > > v1: > > Hi, > > This patchset introduces built-in Bluetooth support on MT7622 SoC. > And, it should be simple to make an extension to support other > MediaTek SoCs with adjusting a few of changes on the initialization > sequence of the device. > > Before the main driver is being introduced, a few of things about > power-domain management should be re-worked for serdev core and MediaTek > SCPSYS to allow the Bluetooth to properly power up. > > Patch 2: add a generic way attaching power domain to serdev > Patch 3 and 4: add cleanups with reuse APIs from Linux core > Patch 5: fix a limitation about power enablement Bluetooth depends on > Patch 1, 6 and 7: the major part of adding Bluetooth support to MT7622 > > Sean > > Sean Wang (3): > dt-bindings: net: bluetooth: Add mediatek-bluetooth > Bluetooth: mediatek: Add protocol support for MediaTek serial devices > MAINTAINERS: add an entry for MediaTek Bluetooth driver > > .../devicetree/bindings/net/mediatek-bluetooth.txt | 35 ++ > MAINTAINERS | 8 + > drivers/bluetooth/Kconfig | 11 + > drivers/bluetooth/Makefile | 1 + > drivers/bluetooth/btmtkuart.c | 629 +++++++++++++++++++++ > 5 files changed, 684 insertions(+) > create mode 100644 Documentation/devicetree/bindings/net/mediatek-bluetooth.txt > create mode 100644 drivers/bluetooth/btmtkuart.c all 3 patches have been applied to bluetooth-next tree. Regards Marcel