From: Arnd Bergmann <[email protected]>
I recently came across some new uses of the 'slave_id' field that
I had (almost) removed a few years ago. There are no legitimate
uses of this field in the kernel, only a few stale references and
two drivers that abuse the field as a side-channel between the
dmaengine driver and its client.
Let's change the xilinx and qualcomm drivers to use the documented
side-channel (peripheral_data) instead, and remove the remnants of
it to prevent new users from coming in.
I think I got all the necessary Acks on v1 already, so if there are
no further concerns, please merge this through the dmaengine tree
for v5.17, or pull from
git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic.git
tags/dma-slave-id-removal
Arnd
Arnd Bergmann (13):
ASoC: tegra20-spdif: stop setting slave_id
ASoC: dai_dma: remove slave_id field
spi: pic32: stop setting dma_config->slave_id
mmc: bcm2835: stop setting chan_config->slave_id
dmaengine: shdma: remove legacy slave_id parsing
dmaengine: pxa/mmp: stop referencing config->slave_id
dmaengine: sprd: stop referencing config->slave_id
dmaengine: qcom-adm: stop abusing slave_id config
dmaengine: xilinx_dpdma: stop using slave_id field
dmaengine: tegra20-apb: stop checking config->slave_id
dmaengine: remove slave_id config field
---
Changes in v2:
- drop obsolete drivers/staging/patch
- split tegra change into a separate patch
- improve some patch descriptions.
drivers/dma/mmp_pdma.c | 6 ---
drivers/dma/pxa_dma.c | 7 ----
drivers/dma/qcom/qcom_adm.c | 56 ++++++++++++++++++++++----
drivers/dma/sh/shdma-base.c | 8 ----
drivers/dma/sprd-dma.c | 3 --
drivers/dma/tegra20-apb-dma.c | 6 ---
drivers/dma/xilinx/xilinx_dpdma.c | 17 +++++---
drivers/gpu/drm/xlnx/zynqmp_disp.c | 9 ++++-
drivers/mmc/host/bcm2835.c | 2 -
drivers/mtd/nand/raw/qcom_nandc.c | 14 ++++++-
drivers/spi/spi-pic32.c | 2 -
drivers/tty/serial/msm_serial.c | 15 ++++++-
include/linux/dma/qcom_adm.h | 12 ++++++
include/linux/dma/xilinx_dpdma.h | 11 +++++
include/linux/dmaengine.h | 4 --
include/linux/platform_data/asoc-s3c.h | 6 ---
include/sound/dmaengine_pcm.h | 4 --
sound/core/pcm_dmaengine.c | 26 +-----------
sound/soc/tegra/tegra20_spdif.c | 1 -
27 files changed, 134 insertions(+), 146 deletions(-)
create mode 100644 include/linux/dma/qcom_adm.h
create mode 100644 include/linux/dma/xilinx_dpdma.h
--
2.29.2
Cc: Andy Gross <[email protected]>
Cc: Andy Shevchenko <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Baolin Wang <[email protected]>
Cc: Bjorn Andersson <[email protected]>
Cc: Chunyan Zhang <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Hyun Kwon <[email protected]>
Cc: Jaroslav Kysela <[email protected]>
Cc: Jon Hunter <[email protected]>
Cc: Lars-Peter Clausen <[email protected]>
Cc: Laurent Pinchart <[email protected]>
Cc: Laxman Dewangan <[email protected]>
Cc: Manivannan Sadhasivam <[email protected]>
Cc: Mark Brown <[email protected]>
Cc: Michal Simek <[email protected]>
Cc: Nicolas Saenz Julienne <[email protected]>
Cc: Orson Zhai <[email protected]>
Cc: Robert Jarzmik <[email protected]>
Cc: Scott Branden <[email protected]>
Cc: Takashi Iwai <[email protected]>
Cc: Thierry Reding <[email protected]>
Cc: Vinod Koul <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
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