Re: [v1] drm/arm/mali-dp: Disable checking for required pixel clock rate

[Robin Murphy]

On 15/05/2019 03:42, Wen He wrote:
Disable checking for required pixel clock rate if ARCH_LAYERSCPAE
is enable.
Signed-off-by: Alison Wang <alison.w...@nxp.com>
Signed-off-by: Wen He <wen.h...@nxp.com>
---
change in description:
        - This check that only supported one pixel clock required clock rate
        compare with dts node value. but we have supports 4 pixel clock
        for ls1028a board.
  drivers/gpu/drm/arm/malidp_crtc.c | 2 ++
  1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/arm/malidp_crtc.c 
b/drivers/gpu/drm/arm/malidp_crtc.c
index 56aad288666e..bb79223d9981 100644
--- a/drivers/gpu/drm/arm/malidp_crtc.c
+++ b/drivers/gpu/drm/arm/malidp_crtc.c
@@ -36,11 +36,13 @@ static enum drm_mode_status malidp_crtc_mode_valid(struct 
drm_crtc *crtc,
  
  	if (req_rate) {
                rate = clk_round_rate(hwdev->pxlclk, req_rate);
+#ifndef CONFIG_ARCH_LAYERSCAPE

What about multiplatform builds? The kernel config doesn't tell you what 
hardware you're actually running on.

Robin.

                if (rate != req_rate) {
                        DRM_DEBUG_DRIVER("pxlclk doesn't support %ld Hz\n",
                                         req_rate);
                        return MODE_NOCLOCK;
                }
+#endif
        }
  
  	return MODE_OK;