diff options
| author | Satendra Singh Thakur <satendra.t@samsung.com> | 2018-09-26 23:41:50 +0300 |
|---|---|---|
| committer | Stefan Agner <stefan@agner.ch> | 2018-10-01 22:51:07 +0300 |
| commit | 469a9308adfcfaa85c85f02fec9fdecd9e38fe07 (patch) | |
| tree | 3c239798bb48a6b1a01c69d4a6990dc041912fb8 /drivers/gpu/drm/fsl-dcu | |
| parent | 53b9974b4b334185ab1030b7ef406d668e6e71ac (diff) | |
| download | linux-469a9308adfcfaa85c85f02fec9fdecd9e38fe07.tar.xz | |
drm/fsl-dcu: use drm_display_mode_to_videomode to calculate timing parameters
Use the drm_display_mode_to_videomode function to calculate front/
back porches and sync length.
Cc: Madhur Verma <madhur.verma@samsung.com>
Cc: Hemanshu Srivastava <hemanshu.s@samsung.com>
Signed-off-by: Satendra Singh Thakur <satendra.t@samsung.com>
Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20180926204150.29829-2-stefan@agner.ch
Diffstat (limited to 'drivers/gpu/drm/fsl-dcu')
| -rw-r--r-- | drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c | 32 |
1 files changed, 14 insertions, 18 deletions
diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c index 05d1c9977395..18afc94e4dff 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c @@ -17,6 +17,7 @@ #include <drm/drm_atomic_helper.h> #include <drm/drm_crtc.h> #include <drm/drm_crtc_helper.h> +#include <video/videomode.h> #include "fsl_dcu_drm_crtc.h" #include "fsl_dcu_drm_drv.h" @@ -85,39 +86,34 @@ static void fsl_dcu_drm_crtc_mode_set_nofb(struct drm_crtc *crtc) struct fsl_dcu_drm_device *fsl_dev = dev->dev_private; struct drm_connector *con = &fsl_dev->connector.base; struct drm_display_mode *mode = &crtc->state->mode; - unsigned int hbp, hfp, hsw, vbp, vfp, vsw, pol = 0; + unsigned int pol = 0; + struct videomode vm; clk_set_rate(fsl_dev->pix_clk, mode->clock * 1000); - /* Configure timings: */ - hbp = mode->htotal - mode->hsync_end; - hfp = mode->hsync_start - mode->hdisplay; - hsw = mode->hsync_end - mode->hsync_start; - vbp = mode->vtotal - mode->vsync_end; - vfp = mode->vsync_start - mode->vdisplay; - vsw = mode->vsync_end - mode->vsync_start; + drm_display_mode_to_videomode(mode, &vm); /* INV_PXCK as default (most display sample data on rising edge) */ if (!(con->display_info.bus_flags & DRM_BUS_FLAG_PIXDATA_POSEDGE)) pol |= DCU_SYN_POL_INV_PXCK; - if (mode->flags & DRM_MODE_FLAG_NHSYNC) + if (vm.flags & DISPLAY_FLAGS_HSYNC_LOW) pol |= DCU_SYN_POL_INV_HS_LOW; - if (mode->flags & DRM_MODE_FLAG_NVSYNC) + if (vm.flags & DISPLAY_FLAGS_VSYNC_LOW) pol |= DCU_SYN_POL_INV_VS_LOW; regmap_write(fsl_dev->regmap, DCU_HSYN_PARA, - DCU_HSYN_PARA_BP(hbp) | - DCU_HSYN_PARA_PW(hsw) | - DCU_HSYN_PARA_FP(hfp)); + DCU_HSYN_PARA_BP(vm.hback_porch) | + DCU_HSYN_PARA_PW(vm.hsync_len) | + DCU_HSYN_PARA_FP(vm.hfront_porch)); regmap_write(fsl_dev->regmap, DCU_VSYN_PARA, - DCU_VSYN_PARA_BP(vbp) | - DCU_VSYN_PARA_PW(vsw) | - DCU_VSYN_PARA_FP(vfp)); + DCU_VSYN_PARA_BP(vm.vback_porch) | + DCU_VSYN_PARA_PW(vm.vsync_len) | + DCU_VSYN_PARA_FP(vm.vfront_porch)); regmap_write(fsl_dev->regmap, DCU_DISP_SIZE, - DCU_DISP_SIZE_DELTA_Y(mode->vdisplay) | - DCU_DISP_SIZE_DELTA_X(mode->hdisplay)); + DCU_DISP_SIZE_DELTA_Y(vm.vactive) | + DCU_DISP_SIZE_DELTA_X(vm.hactive)); regmap_write(fsl_dev->regmap, DCU_SYN_POL, pol); regmap_write(fsl_dev->regmap, DCU_BGND, DCU_BGND_R(0) | DCU_BGND_G(0) | DCU_BGND_B(0)); |