[PATCH v8] backlight: lms283gf05: Convert to GPIO descriptors

[Lee Jones]

On Sun, 10 Jan 2021, Linus Walleij wrote:

> This converts the lms283gf05 backlight driver to use GPIO
> descriptors and switches the single PXA Palm Z2 device
> over to defining these.
> 
> Since the platform data was only used to convey GPIO
> information we can delete the platform data header.
> 
> Notice that we define the proper active low semantics in
> the board file GPIO descriptor table (active low) and
> assert the reset line by bringing it to "1" (asserted).
> 
> Cc: Marek Vasut <marex at denx.de>
> Cc: Daniel Mack <daniel at zonque.org>
> Cc: Haojian Zhuang <haojian.zhuang at gmail.com>
> Cc: Robert Jarzmik <robert.jarzmik at free.fr>
> Reviewed-by: Daniel Thompson <daniel.thompson at linaro.org>
> Signed-off-by: Linus Walleij <linus.walleij at linaro.org>
> ---
> ChangeLog v7->v8:
> - Rebase onto v5.11-rc1
> - I wonder why this never seems to get merged...?

Because you need SPI & PXA Acks and a merge plan.

> ChangeLog v6->v7:
> - Rebase onto v5.10-rc1
> ChangeLog v5->v6:
> - Rebase onto v5.9-rc1
> ChangeLog v4->v5:
> - Rebase on v5.8-rc1
> - Collected Daniel's Reviewed-by tag.
> ChangeLog v3->v4:
> - Check IS_ERR() on the returned GPIO descriptor.
> - Unconditionally set consumer name since the API tolerates NULL.
> ChangeLog v2->v3:
> - Fix a use-before-allocated bug discovered by compile tests.
> - Remove unused ret variable as autobuilders complained.
> ChangeLog v1->v2:
> - Bring up the GPIO de-asserted in probe()
> 
> Marek: I saw this was written by you, are you regularly
> testing the Z2 device?
> ---
>  arch/arm/mach-pxa/z2.c               | 12 +++++---
>  drivers/video/backlight/lms283gf05.c | 43 +++++++++++-----------------
>  include/linux/spi/lms283gf05.h       | 16 -----------
>  3 files changed, 25 insertions(+), 46 deletions(-)
>  delete mode 100644 include/linux/spi/lms283gf05.h

-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
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