Searched hist:c4747d7ce3948766cdae2404b4a796ba4cda9d7d (Results 1 – 2 of 2) sorted by relevance
| /openbmc/linux/include/linux/mfd/ |
| H A D | rt5033-private.h | diff c4747d7ce3948766cdae2404b4a796ba4cda9d7d Mon May 15 15:57:11 CDT 2023 Jakob Hauser <jahau@rocketmail.com> mfd: rt5033: Fix chip revision readout
After reading the data from the DEVICE_ID register, mask 0x0f needs to be
applied to extract the revision of the chip [1].
The other part of the DEVICE_ID register, mask 0xf0, is a vendor identification
code. That's how it is set up at similar products of Richtek, e.g. RT9455 [2]
page 21 top.
[1] https://github.com/msm8916-mainline/linux-downstream/blob/GT-I9195I/drivers/mfd/rt5033_core.c#L484
[2] https://www.richtek.com/assets/product_file/RT9455/DS9455-00.pdf
Signed-off-by: Jakob Hauser <jahau@rocketmail.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/9a98521ffdf76851d5d344afa6ce65f692ecc024.1684182964.git.jahau@rocketmail.com
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| /openbmc/linux/drivers/mfd/ |
| H A D | rt5033.c | diff c4747d7ce3948766cdae2404b4a796ba4cda9d7d Mon May 15 15:57:11 CDT 2023 Jakob Hauser <jahau@rocketmail.com> mfd: rt5033: Fix chip revision readout
After reading the data from the DEVICE_ID register, mask 0x0f needs to be
applied to extract the revision of the chip [1].
The other part of the DEVICE_ID register, mask 0xf0, is a vendor identification
code. That's how it is set up at similar products of Richtek, e.g. RT9455 [2]
page 21 top.
[1] https://github.com/msm8916-mainline/linux-downstream/blob/GT-I9195I/drivers/mfd/rt5033_core.c#L484
[2] https://www.richtek.com/assets/product_file/RT9455/DS9455-00.pdf
Signed-off-by: Jakob Hauser <jahau@rocketmail.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/9a98521ffdf76851d5d344afa6ce65f692ecc024.1684182964.git.jahau@rocketmail.com
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