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authorSatendra Singh Thakur2018-09-26 22:41:50 +0200
committerStefan Agner2018-10-01 21:51:07 +0200
commit469a9308adfcfaa85c85f02fec9fdecd9e38fe07 (patch)
tree3c239798bb48a6b1a01c69d4a6990dc041912fb8 /drivers/gpu/drm/fsl-dcu
parent53b9974b4b334185ab1030b7ef406d668e6e71ac (diff)
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.c32
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));