Hi Philippe, I love your patch! Yet something to improve: [auto build test ERROR on drm/drm-next] [also build test ERROR on v4.15 next-20180205] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Philippe-Cornu/drm-stm-ltdc-add-non-alpha-color-formats/20180201-211736 base: git://people.freedesktop.org/~airlied/linux.git drm-next config: arm-allmodconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (Debian 7.2.0-11) 7.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=arm All errors (new ones prefixed by >>): drivers/gpu//drm/stm/ltdc.c: In function 'ltdc_plane_atomic_update': >> drivers/gpu//drm/stm/ltdc.c:661:17: error: 'const struct drm_format_info' has no member named 'has_alpha' if (!fb->format->has_alpha) ^~ vim +661 drivers/gpu//drm/stm/ltdc.c 587 588 static void ltdc_plane_atomic_update(struct drm_plane *plane, 589 struct drm_plane_state *oldstate) 590 { 591 struct ltdc_device *ldev = plane_to_ltdc(plane); 592 struct drm_plane_state *state = plane->state; 593 struct drm_framebuffer *fb = state->fb; 594 u32 lofs = plane->index * LAY_OFS; 595 u32 x0 = state->crtc_x; 596 u32 x1 = state->crtc_x + state->crtc_w - 1; 597 u32 y0 = state->crtc_y; 598 u32 y1 = state->crtc_y + state->crtc_h - 1; 599 u32 src_x, src_y, src_w, src_h; 600 u32 val, pitch_in_bytes, line_length, paddr, ahbp, avbp, bpcr; 601 enum ltdc_pix_fmt pf; 602 603 if (!state->crtc || !fb) { 604 DRM_DEBUG_DRIVER("fb or crtc NULL"); 605 return; 606 } 607 608 /* convert src_ from 16:16 format */ 609 src_x = state->src_x >> 16; 610 src_y = state->src_y >> 16; 611 src_w = state->src_w >> 16; 612 src_h = state->src_h >> 16; 613 614 DRM_DEBUG_DRIVER("plane:%d fb:%d (%dx%d)@(%d,%d) -> (%dx%d)@(%d,%d)\n", 615 plane->base.id, fb->base.id, 616 src_w, src_h, src_x, src_y, 617 state->crtc_w, state->crtc_h, 618 state->crtc_x, state->crtc_y); 619 620 bpcr = reg_read(ldev->regs, LTDC_BPCR); 621 ahbp = (bpcr & BPCR_AHBP) >> 16; 622 avbp = bpcr & BPCR_AVBP; 623 624 /* Configures the horizontal start and stop position */ 625 val = ((x1 + 1 + ahbp) << 16) + (x0 + 1 + ahbp); 626 reg_update_bits(ldev->regs, LTDC_L1WHPCR + lofs, 627 LXWHPCR_WHSTPOS | LXWHPCR_WHSPPOS, val); 628 629 /* Configures the vertical start and stop position */ 630 val = ((y1 + 1 + avbp) << 16) + (y0 + 1 + avbp); 631 reg_update_bits(ldev->regs, LTDC_L1WVPCR + lofs, 632 LXWVPCR_WVSTPOS | LXWVPCR_WVSPPOS, val); 633 634 /* Specifies the pixel format */ 635 pf = to_ltdc_pixelformat(fb->format->format); 636 for (val = 0; val < NB_PF; val++) 637 if (ldev->caps.pix_fmt_hw[val] == pf) 638 break; 639 640 if (val == NB_PF) { 641 DRM_ERROR("Pixel format %.4s not supported\n", 642 (char *)&fb->format->format); 643 val = 0; /* set by default ARGB 32 bits */ 644 } 645 reg_update_bits(ldev->regs, LTDC_L1PFCR + lofs, LXPFCR_PF, val); 646 647 /* Configures the color frame buffer pitch in bytes & line length */ 648 pitch_in_bytes = fb->pitches[0]; 649 line_length = drm_format_plane_cpp(fb->format->format, 0) * 650 (x1 - x0 + 1) + (ldev->caps.bus_width >> 3) - 1; 651 val = ((pitch_in_bytes << 16) | line_length); 652 reg_update_bits(ldev->regs, LTDC_L1CFBLR + lofs, 653 LXCFBLR_CFBLL | LXCFBLR_CFBP, val); 654 655 /* Specifies the constant alpha value */ 656 val = CONSTA_MAX; 657 reg_update_bits(ldev->regs, LTDC_L1CACR + lofs, LXCACR_CONSTA, val); 658 659 /* Specifies the blending factors */ 660 val = BF1_PAXCA | BF2_1PAXCA; > 661 if (!fb->format->has_alpha) 662 val = BF1_CA | BF2_1CA; 663 664 reg_update_bits(ldev->regs, LTDC_L1BFCR + lofs, 665 LXBFCR_BF2 | LXBFCR_BF1, val); 666 667 /* Configures the frame buffer line number */ 668 val = y1 - y0 + 1; 669 reg_update_bits(ldev->regs, LTDC_L1CFBLNR + lofs, LXCFBLNR_CFBLN, val); 670 671 /* Sets the FB address */ 672 paddr = (u32)drm_fb_cma_get_gem_addr(fb, state, 0); 673 674 DRM_DEBUG_DRIVER("fb: phys 0x%08x", paddr); 675 reg_write(ldev->regs, LTDC_L1CFBAR + lofs, paddr); 676 677 /* Enable layer and CLUT if needed */ 678 val = fb->format->format == DRM_FORMAT_C8 ? LXCR_CLUTEN : 0; 679 val |= LXCR_LEN; 680 reg_update_bits(ldev->regs, LTDC_L1CR + lofs, 681 LXCR_LEN | LXCR_CLUTEN, val); 682 683 mutex_lock(&ldev->err_lock); 684 if (ldev->error_status & ISR_FUIF) { 685 DRM_DEBUG_DRIVER("Fifo underrun\n"); 686 ldev->error_status &= ~ISR_FUIF; 687 } 688 if (ldev->error_status & ISR_TERRIF) { 689 DRM_DEBUG_DRIVER("Transfer error\n"); 690 ldev->error_status &= ~ISR_TERRIF; 691 } 692 mutex_unlock(&ldev->err_lock); 693 } 694 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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