diff options
| author | Fred Fan <r01011@freescale.com> | 2010-01-29 10:31:49 +0800 |
|---|---|---|
| committer | Alejandro Gonzalez <alex.gonzalez@digi.com> | 2010-05-25 11:13:34 +0200 |
| commit | e2c73b04cdf01b0179bd4c12f6138c5d244e481d (patch) | |
| tree | 9e194e2421f6974f278dbdd6018160dd1ced8425 /arch/arm/mach-mx28 | |
| parent | 982b8d5530f97ba200edae12c94ae611cf64feb5 (diff) | |
ENGR00117734-2 i.MX28 EVK touch screen support
Add platform support
Signed-off-by: Fred.fan <r01011@freescale.com
Signed-off-by: Alejandro Gonzalez <alex.gonzalez@digi.com>
Diffstat (limited to 'arch/arm/mach-mx28')
| -rw-r--r-- | arch/arm/mach-mx28/device.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/arch/arm/mach-mx28/device.c b/arch/arm/mach-mx28/device.c index d26d69358f49..9a526bdaacd6 100644 --- a/arch/arm/mach-mx28/device.c +++ b/arch/arm/mach-mx28/device.c @@ -662,6 +662,58 @@ static void __init mx28_init_kbd(void) } #endif +#if defined(CONFIG_TOUCHSCREEN_MXS) || defined(CONFIG_TOUCHSCREEN_MXS_MODULE) +static struct mxs_touchscreen_plat_data mx28_ts_data = { + .x_plus_chan = LRADC_TOUCH_X_PLUS, + .x_minus_chan = LRADC_TOUCH_X_MINUS, + .y_plus_chan = LRADC_TOUCH_Y_PLUS, + .y_minus_chan = LRADC_TOUCH_Y_MINUS, + .x_plus_val = BM_LRADC_CTRL0_XPULSW, + .x_minus_val = BF_LRADC_CTRL0_XNURSW(2), + .y_plus_val = BF_LRADC_CTRL0_YPLLSW(1), + .y_minus_val = BM_LRADC_CTRL0_YNLRSW, + .x_plus_mask = BM_LRADC_CTRL0_XPULSW, + .x_minus_mask = BM_LRADC_CTRL0_XNURSW, + .y_plus_mask = BM_LRADC_CTRL0_YPLLSW, + .y_minus_mask = BM_LRADC_CTRL0_YNLRSW, +}; + +static struct resource mx28_ts_res[] = { + { + .flags = IORESOURCE_MEM, + .start = LRADC_PHYS_ADDR, + .end = LRADC_PHYS_ADDR + 0x2000 - 1, + }, + { + .flags = IORESOURCE_IRQ, + .start = IRQ_LRADC_TOUCH, + .end = IRQ_LRADC_TOUCH, + }, + { + .flags = IORESOURCE_IRQ, + .start = IRQ_LRADC_CH5, + .end = IRQ_LRADC_CH5, + }, +}; + +static void __init mx28_init_ts(void) +{ + struct platform_device *pdev; + + pdev = mxs_get_device("mxs-ts", 0); + if (pdev == NULL || IS_ERR(pdev)) + return; + pdev->resource = mx28_ts_res; + pdev->num_resources = ARRAY_SIZE(mx28_ts_res); + pdev->dev.platform_data = &mx28_ts_data; + mxs_add_device(pdev, 3); +} +#else +static void __init mx28_init_ts(void) +{ + ; +} +#endif int __init mx28_device_init(void) { mx28_init_dma(); @@ -673,6 +725,7 @@ int __init mx28_device_init(void) mx28_init_rtc(); mx28_init_fec(); mx28_init_kbd(); + mx28_init_ts(); return 0; } |