drm/komeda: Add irq handling
authorjames qian wang (Arm Technology China) <james.qian.wang@arm.com>
Tue, 22 Jan 2019 09:24:25 +0000 (09:24 +0000)
committerLiviu Dudau <Liviu.Dudau@arm.com>
Mon, 1 Apr 2019 17:08:26 +0000 (18:08 +0100)
commit0dac37bf1c5dc1e8454fbe8d548f6e312cfd982d
tree2eb4e346ab6b66eaed624724bd005c10e8095331
parent321e925c5813c228bafda5ea3729ebddb00a3040
drm/komeda: Add irq handling

1. Added irq_handler/irq_enable/irq_disable to komeda_dev_func, then the
   Komeda-CORE can control the HW irq via these chip function.
2. Install irq and register irq_handler to system by DRM, so once the IRQ
   coming, the handling sequence is:

   komeda_kms_irq_handler(int irq, void *data)
        /* step 1. call into the CHIP to recognize event */
mdev->funcs->irq_handler(mdev, &evts);

/* step 2. notify the crtc to handle the events */
for (i = 0; i < kms->n_crtcs; i++)
komeda_crtc_handle_event(&kms->crtcs[i], &evts);

v2:
- Move get IRQ number into this change.
- Enable irq before drm_dev_register.

Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
drivers/gpu/drm/arm/display/komeda/d71/d71_dev.c
drivers/gpu/drm/arm/display/komeda/komeda_crtc.c
drivers/gpu/drm/arm/display/komeda/komeda_dev.c
drivers/gpu/drm/arm/display/komeda/komeda_dev.h
drivers/gpu/drm/arm/display/komeda/komeda_kms.c
drivers/gpu/drm/arm/display/komeda/komeda_kms.h