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Luben Tuikov 9de96f3f7e drm/amdgpu: Correctly disable the I2C IP block 
On long transfers to the EEPROM device,
i.e. write, it is observed that the driver aborts
the transfer.

The reason for this is that the driver isn't
patient enough--the IC_STATUS register's contents
is 0x27, which is MST_ACTIVITY | TFE | TFNF |
ACTIVITY. That is, while the transmission FIFO is
empty, we, the I2C master device, are still
driving the bus.

Implement the correct procedure to disable
the block, as described in the DesignWare I2C
Databook, section 3.8.3 Disabling DW_apb_i2c on
page 56. Now there are no premature aborts on long
data transfers.

Cc: Alexander Deucher <Alexander.Deucher@amd.com>
Cc: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Signed-off-by: Luben Tuikov <luben.tuikov@amd.com>
Acked-by: Alexander Deucher <Alexander.Deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-07-01 00:25:33 -04:00
arch Linux 5.13-rc7 2021-06-23 10:07:48 +10:00
block block-5.13-2021-05-22 2021-05-22 07:40:34 -10:00
certs Kbuild updates for v5.13 (2nd) 2021-05-08 10:00:11 -07:00
crypto async_xor: check src_offs is not NULL before updating it 2021-06-10 19:40:14 -07:00
Documentation Merge tag 'amd-drm-next-5.14-2021-06-22-1' of https://gitlab.freedesktop.org/agd5f/linux into drm-next 2021-06-24 07:57:41 +10:00
drivers drm/amdgpu: Correctly disable the I2C IP block 2021-07-01 00:25:33 -04:00
fs for-5.13-rc6-tag 2021-06-18 16:39:03 -07:00
include Merge tag 'drm-msm-next-2021-06-23b' of https://gitlab.freedesktop.org/drm/msm into drm-next 2021-06-24 07:21:16 +10:00
init pid: take a reference when initializing cad_pid 2021-06-05 08:58:11 -07:00
ipc ipc/mqueue, msg, sem: avoid relying on a stack reference past its expiry 2021-05-22 15:09:07 -10:00
kernel - A single fix to restore fairness between control groups with equal priority 2021-06-20 09:44:52 -07:00
lib lib: crc64: fix kernel-doc warning 2021-06-05 08:58:12 -07:00
LICENSES LICENSES: Add the CC-BY-4.0 license 2020-12-08 10:33:27 -07:00
mm mm/sparse: fix check_usemap_section_nr warnings 2021-06-16 09:24:43 -07:00
net Networking fixes for 5.13-rc7, including fixes from wireless, bpf, 2021-06-18 18:55:29 -07:00
samples VFIO fixes for v5.13-rc5 2021-06-03 11:52:24 -07:00
scripts recordmcount: Correct st_shndx handling 2021-06-18 09:09:17 -04:00
security trusted-keys: match tpm_get_ops on all return paths 2021-05-12 22:36:37 +03:00
sound sound fixes for 5.13-rc6 2021-06-11 10:47:10 -07:00
tools tools headers UAPI: Sync linux/in.h copy with the kernel sources 2021-06-19 10:15:22 -03:00
usr .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
virt KVM: VMX: update vcpu posted-interrupt descriptor when assigning device 2021-05-27 07:58:23 -04:00
.clang-format clang-format: Update with the latest for_each macro list 2021-05-12 23:32:39 +02:00
.cocciconfig
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore .gitignore: ignore only top-level modules.builtin 2021-05-02 00:43:35 +09:00
.mailmap mailmap: use private address for Michel Lespinasse 2021-06-05 08:58:12 -07:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: move Murali Karicheri to credits 2021-04-29 15:47:30 -07:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS Linux 5.13-rc7 2021-06-23 10:07:48 +10:00
Makefile Linux 5.13-rc7 2021-06-20 15:03:15 -07:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.