Messages in this thread |  | | From | Dario Binacchi <> | Subject | [PATCH 0/2] am335x: set pinmux registers from pins debug file | Date | Sun, 16 May 2021 15:55:29 +0200 |
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The patch was born from the need to change the slew rate of the LCD pins of a custom AM335x board during EMC tests. The AM335x, as described in a note in section 9.1 of its reference manual [1], is unable to write pinmux registers from user space. The series now makes it possible to write these registers from the pins debug file.
[1] https://www.ti.com/lit/ug/spruh73q/spruh73q.pdf
Dario Binacchi (2): pinctrl: core: configure pinmux from pins debug file pinctrl: single: set pinmux from pins debug file
drivers/pinctrl/core.c | 56 ++++++++++++++++++++++++++++++-- drivers/pinctrl/pinctrl-single.c | 20 ++++++++++++ include/linux/pinctrl/pinctrl.h | 2 ++ 3 files changed, 76 insertions(+), 2 deletions(-)
-- 2.17.1
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