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This adds the suitable SPDX-License-Identifier to all files in drivers/
that previously lacked one.
To aid manual inspection, following heuristics can be used:
* No changes outside of comments/whitespace:
git show -U0 HEAD | rg -v '^(@@|diff|index)|[-+]([-+]|//|#|[\s/]\*)'
* -or-later come in pairs:
git show --inter-hunk-context=19 HEAD | \
perl -0777 -F'/^@/gm' -ne 'for (@F) { @m = /later/g; print if @m & 1 }'
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20211030175632.2276077-4-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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So far, only sdlfb and efi associated the framebuffer device they
register with the hardware device providing it.
Follow suit for all other frame buffers. This enables devinfo
to display parentage.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20210527124453.22710-1-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The regulator id should be given without the "-supply" suffix else the
core is searching for "vbat-supply-supply".
Fixes: bf8f62d334 ("video/ssd1307fb: add support for VBAT")
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The reset GPIO polarity was hardcoded as active low. Honour the polarity
flags given in the device tree instead.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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On error, a goto may jump over the initialization of vmem and free the
uninitialized value during clean up. Fix this.
Found by compiling the code with clang.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Both reset GPIO and regulator are optional as per the binding and the
driver can work without if we ignore their absence. Do so.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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regulator_{enable,disable} are already no-ops when the parameter is
NULL. Drop the NULL checks thusly.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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info->priv is dereferenced before a valid value has been set leading to
a NULL pointer dereference in the probe function. Fix this.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Add macro and dependency to avoid boilerplate code. Since now simple
i2c drivers only have to include the i2c.h header and call the
device_i2c_driver() macro to register a i2c device driver.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Adds support to the driver to enable VBAT regulator at init time.
This is similar to ba14301e0356 ("fbdev/ssd1307fb: add support to enable
VBAT") and cfc5b2b551d8 ("fbdev/ssd1307fb: fix optional VBAT support")
in Linux kernel.
Signed-off-by: Bastian Stender <bst@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
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It was ported from linux v4.10. Like the kernel driver only
communication via I2C is supported.
It has only been tested with a SSD1306 and a 96x16 OLED display:
&i2c0 {
status = "okay";
ssd1306: oled@3c {
compatible = "solomon,ssd1306fb-i2c";
reg = <0x3c>;
reset-gpios = <&gpio1 1 0>;
solomon,height = <16>;
solomon,width = <96>;
solomon,page-offset = <0>;
solomon,com-invdir;
solomon,com-seq;
};
Signed-off-by: Bastian Stender <bst@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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