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Remove unneeded error handling on the result of a call to
platform_get_resource when the value is passed to devm_ioremap_resource.
Move the call to platform_get_resource adjacent to the call to
devm_ioremap_resource to make the connection between them more clear.
A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
expression pdev,res,n,e,e1;
expression ret != 0;
identifier l;
@@
- res = platform_get_resource(pdev, IORESOURCE_MEM, n);
... when != res
- if (res == NULL) { ... \(goto l;\|return ret;\) }
... when != res
+ res = platform_get_resource(pdev, IORESOURCE_MEM, n);
e = devm_ioremap_resource(e1, res);
// </smpl>
Signed-off-by: Julia Lawall <[email protected]>
Acked-by: Viresh Kumar <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
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Specify DT bindings for the TPU PWM controller and add OF support to the
driver.
Signed-off-by: Laurent Pinchart <[email protected]>
Acked-by: Stephen Warren <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
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This driver can be built as module, add MODULE_ALIAS to make module auto loading
work.
Signed-off-by: Axel Lin <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
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In case of error, the function devm_ioremap_resource() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should
be replaced with IS_ERR().
Signed-off-by: Wei Yongjun <[email protected]>
Reviewed-by: Axel Lin <[email protected]>
Acked-by: Laurent Pinchart <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
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The Timer Pulse Unit (TPU) is a 4-channels 16-bit timer used to generate
waveforms. This driver exposes PWM functions through the PWM API for
other drivers to use.
The code is loosely based on the leds-renesas-tpu driver by Magnus Damm
and the TPU PWM driver shipped in the Armadillo EVA 800 kernel sources.
Signed-off-by: Laurent Pinchart <[email protected]>
Signed-off-by: Axel Lin <[email protected]>
Tested-by: Simon Horman <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
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