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path: root/drivers/input/touchscreen/bcm_iproc_tsc.c (follow)
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2019-08-14Input: remove dev_err() usage after platform_get_irq()Stephen Boyd1-3/+1
We don't need dev_err() messages when platform_get_irq() fails now that platform_get_irq() prints an error message itself when something goes wrong. Let's remove these prints with a simple semantic patch. // <smpl> @@ expression ret; struct platform_device *E; @@ ret = ( platform_get_irq(E, ...) | platform_get_irq_byname(E, ...) ); if ( \( ret < 0 \| ret <= 0 \) ) { ( -if (ret != -EPROBE_DEFER) -{ ... -dev_err(...); -... } | ... -dev_err(...); ) ... } // </smpl> While we're here, remove braces on if statements that only have one statement (manually). Signed-off-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-04-06Input: bcm_iproc_tsc - use syscon to access shared registersRaveendra Padasalagi1-34/+43
In Cygnus SOC touch screen controller registers are shared with ADC and flex timer. Using readl/writel could lead to race condition. So touch screen driver is enhanced to support register access using syscon framework API's to take care of mutually exclusive access. Signed-off-by: Raveendra Padasalagi <raveendra.padasalagi@broadcom.com> Reviewed-by: Ray Jui <ray.jui@broadcom.com> Reviewed-by: Scott Branden <scott.branden@broadcom.com> Acked-by: Rob Herring <robh@kernel.org> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-23Input: add Broadcom iProc touchscreen driverJonathan Richardson1-0/+522
Add initial version of the Broadcom touchscreen driver. Reviewed-by: Ray Jui <rjui@broadcom.com> Reviewed-by: Scott Branden <sbranden@broadcom.com> Tested-by: Scott Branden <sbranden@broadcom.com> Signed-off-by: Jonathan Richardson <jonathar@broadcom.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>