Hi,
On Thursday 29 January 2015 07:39 PM, Markus Pargmann wrote:
This is a driver for the imx25 ADC/TSC module. It controls the
touchscreen conversion queue and creates a touchscreen input device.
The driver currently only supports 4 wire touchscreens. The driver uses
a simple conversion queue of precharge, touch detection, X measurement,
Y measurement, precharge and another touch detection.
This driver uses the regmap from the parent to setup some touch specific
settings in the core driver and setup a idle configuration with touch
detection.
Signed-off-by: Markus Pargmann <[email protected]>
Signed-off-by: Denis Carikli <[email protected]>
Acked-by: Dmitry Torokhov <[email protected]>
Signed-off-by: Markus Pargmann <[email protected]>
---
drivers/input/touchscreen/Kconfig | 6 +
drivers/input/touchscreen/Makefile | 1 +
drivers/input/touchscreen/fsl-imx25-tcq.c | 587 ++++++++++++++++++++++++++++++
3 files changed, 594 insertions(+)
create mode 100644 drivers/input/touchscreen/fsl-imx25-tcq.c
(...)
+ ret = request_threaded_irq(priv->irq, mx25_tcq_irq, mx25_tcq_irq_thread,
+ IRQF_ONESHOT, pdev->name, priv);
We can use devres API for request_thread_irq()...
+ if (ret) {
+ dev_err(dev, "Failed requesting IRQ\n");
+ goto err_clk_unprepare;
+ }
+
+ ret = mx25_tcq_init(priv);
+ if (ret) {
+ dev_err(dev, "Failed to init tcq\n");
+ goto error_free_irq;
+ }
+
+ platform_set_drvdata(pdev, priv);
+
+ return 0;
+
+error_free_irq:
+ free_irq(priv->irq, priv);
This is not required if we use devres API
+err_clk_unprepare:
+ clk_disable_unprepare(priv->clk);
+ return ret;
+}
+
+static int mx25_tcq_remove(struct platform_device *pdev)
+{
+ struct mx25_tcq_priv *priv = platform_get_drvdata(pdev);
+
+ free_irq(priv->irq, priv);
This also..
--
Regards,
Varka Bhadram.
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