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Date:   Tue,  9 May 2023 08:22:39 +0000
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Message-ID: <20230509082244.1069623-1-joychakr@google.com>
Subject: [PATCH v10 0/5] spi: dw: DW SPI DMA Driver updates
From:   Joy Chakraborty <joychakr@google.com>
To:     Serge Semin <fancer.lancer@gmail.com>,
        Mark Brown <broonie@kernel.org>,
        Andy Shevchenko <andriy.shevchenko@intel.com>
Cc:     linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org,
        manugautam@google.com, rohitner@google.com,
        Joy Chakraborty <joychakr@google.com>
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This Patch series adds support for 32 bits per word trasfers using DMA
and some defensive checks around dma controller capabilities.
---
V1 Changes : Add support for AxSize=3D4 bytes to support 32bits/word.
---
V1->V2 Changes : Add dma capability check to make sure address widths
are supported.
---
V2->V3 Changes : Split changes , add DMA direction check and other
cosmetic chnages.
---
V3->V4 Changes : Fix Sparce Warning
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202303270715.w9sMJhIh-lkp@int=
el.com/
---
V4->V5 Changes : Preserve reverse xmas Tree order, move direction
check before initalisation of further capabilities, remove zero
initialisations, remove error OR'ing.
---
V5->V6 Changes :
	-Remove case of n_bytes=3D3 using 4_bytes buswidth
	-Avoid forward decaration
	-Break capability check patch into 2
	-round n_bytes to power of 2 ( Bug Fix)
	-Add more explanation in commit text.
---
V6->V7 Changes : Remove extra spaces, refer to functions in commit as
func()
---
V7->V8 Changes : Minor commment updates in patch 4/5
---
V8->V9 Changes : Minor formatting changes in patch 5/5
---
V9->V10 Changes : Moving "return 0" at the end of dw_spi_dma_caps_init() fr=
om patch
[4/5] to patch [3/5] to solve :
spi-dw-dma.c: In function =E2=80=98dw_spi_dma_caps_init=E2=80=99:
spi-dw-dma.c:100:1: control reaches end of non-void function [-Werror=3Dret=
urn-type]
---

Joy Chakraborty (5):
  spi: dw: Add 32 bpw support to SPI DW DMA driver
  spi: dw: Move dw_spi_can_dma()
  spi: dw: Add DMA directional capability check
  spi: dw: Add DMA address widths capability check
  spi: dw: Round of n_bytes to power of 2

 drivers/spi/spi-dw-core.c |  5 ++-
 drivers/spi/spi-dw-dma.c  | 76 +++++++++++++++++++++++++++++----------
 drivers/spi/spi-dw.h      |  1 +
 3 files changed, 63 insertions(+), 19 deletions(-)

--=20
2.40.1.521.gf1e218fcd8-goog