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The likelihood of getting a large number of panel drivers from different
vendors is quite high. Add a prefix to the two existing Samsung panel
drivers to set a guideline for future patch submissions. Using vendor
prefixes consistently should allow a cleaner organization of the tree.
Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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There's some useless padding in the struct spi_driver definition. Remove
it since it serves no useful purpose.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Both the Samsung LD9040 and Samsung S6E8AA0 panel drivers are missing
a const qualifier for their OF match tables. This data is static and
never changes, so can be read-only.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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The %* format specifier expects an integer, which works fine with size_t
arguments on 32-bit because the types match. However on 64-bit, size_t
is typedef'd to unsigned long and will cause a build warning.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Add the new flags argument to calls of (devm_)gpiod_get*() and remove
any direction setting code afterwards.
Currently both forms (with or without the flags argument) are valid
thanks to transitional macros in <linux/gpio/consumer.h>. These macros
will be removed once all consumers are updated and the flags argument
will become compulsary.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Using a function instead of a macro provides proper type checking.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Move out code from enable and disable routines to prepare
and unprepare routines, so that functionality is properly
distributed across all the panel functions.
Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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This patch adds dummy definition for prepare and unprepare
routines to ld9040 panel driver.
Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Some ld9040 panels do not start without providing power control sequence
during initialization. The patch fixes the driver by providing such
sequence for all panels.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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The patch adds LD9040 parallel RGB panel driver with SPI control interface.
The driver uses drm_panel framework.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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Thierry Reding
Alexandre Courbot
Ajay Kumar
Andrzej Hajda